CN110240385A - A kind of on-line continuous opsonic reaction device for deep sludge dewatering process mud chemical conditioning - Google Patents
A kind of on-line continuous opsonic reaction device for deep sludge dewatering process mud chemical conditioning Download PDFInfo
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- CN110240385A CN110240385A CN201910645269.8A CN201910645269A CN110240385A CN 110240385 A CN110240385 A CN 110240385A CN 201910645269 A CN201910645269 A CN 201910645269A CN 110240385 A CN110240385 A CN 110240385A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 160
- 239000010802 sludge Substances 0.000 title claims abstract description 84
- 239000000126 substance Substances 0.000 title claims abstract description 53
- 230000001662 opsonic effect Effects 0.000 title claims abstract description 39
- 230000003750 conditioning effect Effects 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000008569 process Effects 0.000 title claims abstract description 21
- 239000003814 drug Substances 0.000 claims abstract description 65
- 238000003756 stirring Methods 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 230000035484 reaction time Effects 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 229940079593 drug Drugs 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 230000018044 dehydration Effects 0.000 abstract description 7
- 238000006297 dehydration reaction Methods 0.000 abstract description 7
- 239000013043 chemical agent Substances 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 6
- 230000033228 biological regulation Effects 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 7
- 235000011941 Tilia x europaea Nutrition 0.000 description 7
- 239000004571 lime Substances 0.000 description 7
- 239000010865 sewage Substances 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 239000003513 alkali Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 208000012826 adjustment disease Diseases 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000021186 dishes Nutrition 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1862—Stationary reactors having moving elements inside placed in series
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
- C02F11/145—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances using calcium compounds
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00027—Process aspects
- B01J2219/00033—Continuous processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00177—Controlling or regulating processes controlling the pH
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00182—Controlling or regulating processes controlling the level of reactants in the reactor vessel
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of on-line continuous opsonic reaction devices for deep sludge dewatering process mud chemical conditioning.It includes power control cabinet, PLC automatic control system, cabinet, pedestal, motor, blender, liquidometer, PH measuring instrument, sludge concentration meter, solenoid valve；The on-line continuous opsonic reaction device, three kinds of chemical agents below can be added, medicament is set to carry out successive reaction in differential responses area with mud respectively, and can be fed back according to the signal of liquidometer, PH measuring instrument, sludge concentration meter, the automatic control to the reaction time of liquid level, added amount of chemical and stirring intensity and medicament and mud is realized by PLC automatic control system.The device may replace interval or the semibatch mud opsonic reaction pond of civil engineering or steel construction in traditional sludge Deep dehydration technique.The device can effectively save land occupation and investment, and improve the chemical agent of sludge and realize on-line monitoring and regulation, realize the continuous operation of deep sludge dewatering process mud conditioning.
Description
Technical field
The invention belongs to technical field of sludge deep dehydration, are related to a kind of for deep sludge dewatering process mud chemistry tune
The on-line continuous opsonic reaction device of reason.
Background technique
By-product of the biochemical sludge caused by municipal sewage plant as sewage treatment, it is necessary to by concentration, dehydration
Deng processing, after reaching moisture content≤60%, just can further dispose.So deep sludge dewatering process is widely used.?
In this technique, usually by the sludge of moisture content 97%~98% caused by concentration basin, or by mechanical thickening to moisture content
95% or so sludge is sent to the conditioner of steel construction or civil engineering structure, until mud is full of conditioner, then adds thereto
Chemical conditioning medicament (usually liquor ferri trichloridi and lime), to improve slurry dewatering performance.This conditioning mode needs
Sufficiently bulky steel structure or civil engineering conditioner, investment cost is high, takes up a large area, operates and overhaul inconvenience.Most important two o'clock
It is, one side conditioner is run using interval or semibatch, so that Deep dehydration technique continuity is not high enough；It is another
Aspect adds ferric trichloride and lime simultaneously in same pond body, medicament can be made to interact, and reduces conditioning effect, also, throw
Add the added amount of chemical and the adjusting in reaction time control difficulty increase that Process lack is caused to sludge quality fluctuation.
Under this background, a kind of opsonic reaction device is needed, mud chemical conditioning form can be improved, make conditioning process
Serialization, chemical agent are reacted with mud respectively, can be online to medicine to the variation that the parameters such as concentration of hydraulic mixture, PH occur
Agent dosage, response intensity and time etc. are regulated and controled online.
Summary of the invention
It is an object of the present invention to overcome in existing deep sludge dewatering process mud chemical conditioning mode and device not
Foot designs a kind of on-line continuous opsonic reaction device, and the interval or semibatch of steel construction or civil engineering structure is replaced to react conditioning
Pond, mud can be improved serialization by realization, scientific, and the function that can be automatically adjusted according to slip variation.This hair
Bright purpose is achieved through the following technical solutions:
A kind of on-line continuous opsonic reaction device for deep sludge dewatering process mud chemical conditioning of the present invention, it is wrapped
It includes: power control cabinet, PLC automatic control system, cabinet, pedestal, motor, blender, liquidometer, PH measuring instrument, sludge concentration meter, electricity
Magnet valve and necessary pipe valve connector；Cabinet is installed on pedestal；Cabinet is equipped with power control cabinet, and power control cabinet is equipped with PLC certainly
Autocontrol system；Cabinet is equipped with mud inlet, mud mouth；Inlet control valve is equipped on the feeding pipe connecting with mud inlet,
The inlet control valve and the output end of PLC automatic control system connect；Three mutually isolated reaction zones are equipped in cabinet, i.e., instead
Area A, reaction zone B, reaction zone C are answered, blender is equipped in each reaction zone, is connected respectively with three groups of independent variable-frequency motors, three
The independent variable-frequency motor of group is connect with the output end of PLC automatic control system respectively；It is equipped with chemical feed pipe in reaction zone, on chemical feed pipe
Equipped with solenoid valve, the output end of the solenoid valve and PLC automatic control system is connected；Cabinet is equipped with online monitoring instruments liquid level
The input terminal of meter, PH measuring instrument, sludge concentration meter, these online monitoring instruments and PLC automatic control system connects；The device can
It is fed back according to the measured signal of liquidometer, PH measuring instrument, sludge concentration meter, is realized by PLC automatic control system to liquid level, medicine
The automatic control in the reaction time of the stirring intensity and medicament and mud of agent dosage and blender.
Further, connecting line is equipped between reaction zone A, reaction zone B；Company between reaction zone A, reaction zone B
Adapter tube road is equipped with control valve；The connection of the output end of the control valve and PLC automatic control system.
Further, top of the box is equipped with multiple mud inlets, and body side is equipped with mud mouth；Mud inlet and reaction zone A connect
Logical, mud mouth is connected to reaction zone C.
Further, each reaction zone is equipped with a chemical feed pipe (cabinet two sides is respectively provided with a chemical feed pipe, top of the box
A chemical feed pipe can be connected by being additionally provided with a spare dosing mouth).
Further, top of the box is equipped with exhaust outlet；Bottom of box side is equipped with sludge evacuation port (emptying for sludge).
Further, overflow mode of communicating in top is used between reaction zone B and reaction zone C.
Further, connecting line is equipped between reaction zone A, reaction zone C；The connecting line and sludge evacuation port connect
It is logical；The connecting line is used in the case where needing and emptying.
The operational process of on-line continuous opsonic reaction device of the invention is as follows:
(1) sludge is pumped into reaction zone A through conveying, meanwhile, chemical conditioning medicament is pumped into reaction zone A through medicament conveying,
The two is wherein reaching uniform mixing by the effect of blender；Meanwhile PLC automatic control system is according to the control liquid level of setting
It is fed back with the measured signal of liquidometer, auto-adjustment control reacts duration and stirring intensity；That is: believed according to the actual measurement of liquidometer
Number feedback, the PLC automatic control system in power control cabinet sets control, to realize the control of reaction duration；
(2) when reaching the reaction time, mixed liquor passes through the connecting line 8 between reaction zone A and reaction zone B from reaction zone A
Flow into reaction zone B；In reaction zone B, medicament delivery pump can be sent into second of chemical conditioning medicament (as needed two kinds or with medicine-feeding
Agent is improved), it realizes mixed liquor under the stirring of the area B blender with second of chemical conditioning medicament and uniformly mixes；Meanwhile
PLC automatic control system is fed back according to the sludge concentration of setting and the measured signal of sludge concentration meter, auto-adjustment control reaction
Duration and stirring intensity；
(3) when reaching the reaction time, well-mixed mixed liquor was carried out with two kinds of medicaments respectively, was passed through from reaction zone B
Overflow flows into reaction zone C；In reaction zone C, medicament delivery pump can be sent into the third chemical conditioning medicament (as needed three kinds of medicaments
Improved), it realizes mixed liquor under the stirring of the area C blender with the third chemical conditioning medicament and uniformly mixes；Meanwhile
PLC automatic control system is fed back according to the sludge concentration of setting and the measured signal of sludge concentration meter, auto-adjustment control reaction
Duration and stirring intensity；
(4) when mixed liquor reaches the reaction time, on-line continuous opsonic reaction device can be sent out, is sent into rear end dehydration system
System.
Further, during whole service, liquidometer, sludge concentration meter and PH measuring instrument (PH meter) can be monitored on-line
The variation of mud level, sludge concentration concentration and pH value, and feed back to PLC automatic control system；It is automatically controlled according to PLC and is
The analysis that system makes mud level data, PLC automatic control system can control to adjust the connection between reaction zone A, reaction zone B
Opening or closing for control valve on pipeline, transmits or is automatically stopped transmission to next reaction zone for reactant；According to PLC
The analysis that automatic control system makes sludge concentration and pH value data, PLC automatic control system can control to adjust three groups of electricity
Machine, to realize the control to blender stirring intensity and mixing time, also, PLC automatic control system can control to adjust and add
Solenoid valve on pencil, to control administration timing of drug, to change dosage.
Beneficial effects of the present invention:
For the deficiency for solving existing mud opsonic reaction pond, the present invention provides a kind of deep sludge dewatering process chemistry tune
Manage the on-line continuous opsonic reaction device of medicament.The on-line continuous opsonic reaction device is fluctuated for slip, be may be implemented
To the auto-adjustment control of added amount of chemical and stirring intensity and mixing time.Integrated Steel Structural Design, small in size, cost
It is low, mud can be improved from interval or semi-batch and become continuity conditioning.To make the full production line of deep sludge dewatering process
Continuous operation.
By using the on-line continuous opsonic reaction device, 3 kinds or chemical agent below can be added, medicament is distinguished
Successive reaction is carried out in reaction unit with mud, and is fed back according to the signal of liquidometer, PH measuring instrument, sludge concentration meter, warp
The pre-set programs of PLC automatic control system control, and realize the reaction time of medicament and mud and add dose.The present invention can be with
Land occupation and investment are effectively saved, and improves the chemical agent of sludge and realizes on-line monitoring and regulation, realizes deeply dehydrating sludge
The continuous operation of technique mud conditioning.
The present invention has following compared with the opsonic reaction pond of interval or semi-batch in existing deep sludge dewatering process
Advantage:
1, structurally reasonable, it is small in size, save occupied area and investment.Totally-enclosed structure keeps execute-in-place environment safer
With it is clean and tidy.
2, PLC automatic control system can be fed back according to the signal of measuring instrument, automatically adjust added amount of chemical, stirring intensity
And duration, the effect of chemical agent conditioning is improved, is controlled more accurate.Manual labor's intensity can be effectively reduced simultaneously.
3, by the use of on-line continuous opsonic reaction device, interval can be adjusted to continuously to improve.It improves dirty
The operational efficiency and effect of mud Deep dehydration technique.
4, by the setting of three groups of reaction zones, on-line continuous opsonic reaction device can at most make mud and 3 kinds of medicaments into
Row reaction.It is used by the collocation of medicament, the mud bad to dewatering has more broad applicability.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of on-line continuous opsonic reaction device of the invention；
Fig. 2 is the side structure schematic view (i.e. the left view of Fig. 1) of on-line continuous opsonic reaction device of the invention；
Fig. 3 is the overlooking structure diagram of on-line continuous opsonic reaction device of the invention.
In figure: 1, cabinet；2, pedestal；3, power control cabinet (PLC automatic control system)；4, liquidometer；5, chemical feed pipe；6, it reacts
Connecting line between area A and reaction zone C；7, PH measuring instrument；8, the connecting line between reaction zone A and reaction zone B；9, electromagnetism
Valve；10, spare dosing mouth；11, sludge concentration meter；12, measuring instrument electricity box；N-1, mud mouth；N-2, mud inlet；N-3, sludge row
It eats dishes without rice or wine；N-4, dosing mouth；N-5, exhaust outlet；N-6, dosing mouth；M-1, M-2, M-3 are variable-frequency motor.
Specific embodiment
Below in conjunction with drawings and examples, the present invention is further illustrated.But the contents of the present invention are not limited to
In these embodiments.
Embodiment 1
1, as shown in Figure 1, Figure 2, Figure 3 shows, the present invention is a kind of for the online of deep sludge dewatering process mud chemical conditioning
Continuous opsonic reaction device, it include: cabinet, pedestal, power control cabinet, PLC automatic control system, motor, blender, liquidometer,
PH measuring instrument, sludge concentration meter, solenoid valve and necessary pipe valve connector；Cabinet 1 is installed on pedestal 2；It is equipped with before cabinet
Power control cabinet 3, power control cabinet 3 is equipped with PLC automatic control system, and (cabinet door of power control cabinet 3 is equipped with the operation of PLC automatic control system
Panel)；Mutually isolated tri- reaction zones of A, B, C (i.e. reaction zone A, reaction zone B, reaction zone C) are equipped in cabinet 1, it is each anti-
It answers and is equipped with blender in area, be connected respectively with three groups of independent variable-frequency motors (M-1, M-2, M-3), three groups of independent variable-frequency motors
It is connect respectively with the output end of PLC automatic control system；Cabinet 1 is equipped with measuring instrument electricity box 12, interior to be equipped with on-line computing model
Device includes liquidometer 4, PH measuring instrument 7, sludge concentration meter 11, the input of these online monitoring instruments and PLC automatic control system
End connection；1 two sides of cabinet are respectively provided with a chemical feed pipe, and chemical feed pipe is equipped with solenoid valve 8, and the solenoid valve 9 and PLC, which are automatically controlled, is
The output end of system connects；A spare dosing mouth 10 is additionally provided at the top of cabinet 1 can connect a chemical feed pipe.It is set at the top of cabinet 1
There are multiple mud inlet N-2,1 side surface upper part of cabinet is equipped with mud mouth N-1；Mud inlet N-2 is connected to reaction zone A, mud mouth N-1 with
Reaction zone C connection；It is equipped with inlet control valve (being not drawn into figure) on the feeding pipe connecting with mud inlet N-2, the charging control
Valve processed and the output end of PLC automatic control system connect；Exhaust outlet N-5 is additionally provided at the top of cabinet 1,1 bottom side of cabinet is equipped with
Sludge evacuation port N-3 (is emptied) for sludge.The device can according to liquidometer, PH measuring instrument, sludge concentration meter measured signal
Feedback, by PLC automatic control system according to pre-set programs, realize the stirring intensity to liquid level, added amount of chemical and blender with
And the automatic control in the reaction time of medicament and mud.
The device specific structure is as follows:
(1) device includes: three groups of motors (M-1, M-2, M-3 in figure), and three groups of blenders, power control cabinet 3 and PLC are automatic
Control system, mud mouth (N-1 in figure), mud inlet (N-2 in figure), sludge evacuation port (N-3 in figure), dosing mouth (figure
In N-4 and N-6), exhaust outlet (N-5 in figure), liquidometer 4, PH measuring instrument 7, sludge concentration meter 11, solenoid valve 9 and necessity
Pipe valve connector etc..
(2) PLC automatic control system of the device has preset control program, and the sludge that can be fed back by test equipment is joined
Number, adjusts added amount of chemical in time, to reach best conditioning state, medicament wave caused by avoiding adding of agent excessively and deficiency
Take and ineffective.
(3) device is set there are three reaction zone, can be used for adding three kinds or different agents below.In three reaction zones
It is interior, possess independent one group of motor control, one group of blender respectively, every group of independent frequency control of motor is, it can be achieved that blender turns
Dynamic speed and intensity adjustment；That is: it is equipped with blender in each reaction zone, is connected respectively with three groups of independence variable-frequency motors；By
PLC automatic control system is to the regulation of variable-frequency motor, it can be achieved that the adjusting of blender velocity of rotation and intensity.
(4) device is equipped with connecting line 8 between reaction zone A, reaction zone B；Company between reaction zone A, reaction zone B
It takes over road 8 and is equipped with control valve.
It is connected between reaction zone A and reaction zone B by connecting line 8.It is overflow between reaction zone B and reaction zone C using top
Flow mode of communicating.
Connecting line 6 is equipped between reaction zone A, reaction zone C.Connecting line 6 between reaction zone A and reaction zone C is
It is used in the case where needing and emptying.
(5) device is equipped with liquidometer 4, PH measuring instrument 7, sludge concentration meter 11, can import to PLC automatic control system
Liquid level, sludge PH and the sludge concentration of the real time measure；It can convey monitoring signal to Central Control Room in real time, realize online prison
Control function.
The operational process of on-line continuous opsonic reaction device of the invention is as follows:
(1) sludge is pumped into reaction zone A through conveying, meanwhile, chemical conditioning medicament is pumped into reaction zone A through medicament conveying,
The two is wherein reaching uniform mixing by the effect of blender, and because the signal of liquidometer is fed back, PLC automatic control system can be certainly
It is dynamic to adjust reaction duration and stirring intensity.It is fed back according to the signal of liquidometer, the PLC automatic control system in power control cabinet sets control
System, to realize the control of reaction duration.
(2) when reaching the reaction time, mixed liquor passes through the connecting line 8 between reaction zone A and reaction zone B from reaction zone A
Reaction zone B is flowed into, in reaction zone B, medicament delivery pump can be sent into second of chemical conditioning medicament (as needed two kinds or with medicine-feeding
Agent is improved), it realizes mixed liquor under the stirring of the area B blender with second of chemical conditioning medicament and uniformly mixes, simultaneously
Under the control of PLC automatic control system, automatic adjustment reaction duration and stirring intensity.
(3) when reaching the reaction time, well-mixed mixed liquor was carried out with two kinds of medicaments respectively, was passed through from reaction zone B
Overflow flows into reaction zone C, and in reaction zone C, medicament delivery pump can be sent into the third chemical conditioning medicament (as needed three kinds of medicaments
Improved), it realizes mixed liquor under the stirring of the area C blender with the third chemical conditioning medicament and uniformly mixes, while
Under the control of PLC automatic control system, automatic adjustment reaction duration and stirring intensity.
(4) when mixed liquor reaches the reaction time, on-line continuous opsonic reaction device can be sent out, is sent into rear end dehydration system
System.
During whole service, liquidometer, sludge concentration meter and PH measuring instrument (PH meter) can monitor on-line mud level,
The variation of sludge concentration concentration and pH value, and feed back to PLC automatic control system；According to PLC automatic control system to mud
The analysis that liquid level data is made, PLC automatic control system can control to adjust on the connecting line 8 between reaction zone A, reaction zone B
Control valve open or close, reactant transmitted or is automatically stopped transmission to next reaction zone；It is controlled automatically according to PLC
The analysis that system processed makes sludge concentration and pH value data, PLC automatic control system can control to adjust three groups of motors, thus
Realize the control to blender stirring intensity and mixing time, also, PLC automatic control system can control to adjust on chemical feed pipe
Solenoid valve 9, to control administration timing of drug, to change dosage.
PLC automatic control system and every detecting instrument specifically be associated with and control mode are as follows: 1. liquidometer 4 detect it is each instead
Answer the liquid level in area A；When liquid level reaches operation liquid level, signal is transmitted to PLC automatic control system, and PLC is automatically controlled
The control valve on the connecting line 8 between reaction zone A, reaction zone B is opened in system control, and reactant is passed to next reaction zone
It is defeated；When liquid level minimizes liquid level, the connecting line 8 between reaction zone A, reaction zone B is closed in PLC automatic control system control
On control valve, transmission can be automatically stopped, until liquid level restore to operation liquid level；When being more than highest liquid level, PLC is automatically controlled
System can automatically control the control valve closed on feeding pipe, control the inflow of liquid.2. PH measuring instrument 7 (PH meter) is for monitoring
Material PH；Reaction condition is required in meta-acid or the medicament of meta-alkali condition, requiring supplementation with sour or alkali, (acid or alkali can be from chemical feed pipes
Middle supplement is added)；When material PH changes, when so that reaction condition not meeting medicament demand, PLC automatic control system is by root
According to the testing result of PH measuring instrument, the solenoid valve 9 on chemical feed pipe is controlled, to acid adding or the amount of alkali is added to be adjusted, supplements or subtract
The dosage of few acid, alkali medicament.3. the input concentration of 11 real-time monitoring sludge of sludge concentration meter simultaneously feeds back to PLC automatic control system
System；When sludge concentration reduces, PLC automatic control system will carry out ratio according to the sewage sludge feed concentration data being most recently detected
It calculates, controls the solenoid valve 9 on chemical feed pipe, in adding of agent ratio, reduce chemicals dosing plant adds speed, reduces the throwing of medicament
Dosage；When sludge concentration increases, then in adding of agent ratio, that improves chemicals dosing plant adds speed, increases adding for medicament
Amount.4. the blender being connected to three groups with variable-frequency motor (M-1, M-2, M-3) regulates and controls according to medicament reaction condition；As thrown
When adding emulsion-type medicament, system can control three groups of variable-frequency motors and the revolving speed of blender becomes smaller, and stirring intensity reduces, simultaneous reactions
Time extends；When adding mealy medicine, control system can improve the revolving speed of three groups of variable-frequency motors and blender, and it is strong to increase stirring
Degree promotes medicament to mix with the Quick uniform of sludge.
Application Example 1
Changji sewage treatment plant, day handle 50,000 tons of sewage quantity, and it is dirty to generate the life that over dry mud amount is about 10 tons
Mud.Dilution conditioner is sent into using by the sludge of moisture content 80% in scene, is diluted with water moisture content 93%, then add to conditioner
Enter liquor ferri trichloridi and lime.Conditioned sludge is sent into high pressure plate and frame type filter-press, filters pressing to moisture content 60%.Scene has
Two conditioners, single pool volume are 4m × 4m × 4.5m.Due to conditioner use concrete structure, it is very heavy, workshop also with
Construction it is bigger.4.5 meters of height need to be climbed in conditioner maintenance, it is abnormally dangerous.And reserved maintenance above conditioner
Mouth often has lime powder and mud to gush out.Environment is very poor.Due to adding ferric trichloride and lime in same pool capacity, cause
Two kinds of medicaments react mutually one step ahead before with sludge reaction.Become larger so as to cause added amount of chemical.As back
Scape is transformed conditioner, replaces with on-line continuous opsonic reaction device of the invention described in embodiment 1.
In on-line continuous opsonic reaction device of the invention, by adding water to be diluted in reaction zone A, in reaction zone B
Liquor ferri trichloridi and lime are added respectively with C.In terms of the sludge concentration in device, PH is counted and the signal of liquidometer feedback, real
Now to the control of the dilution of sludge and added amount of chemical.Since medicament is separately reacted, so that ferric chloride reaction area can be with
It maintains in acid condition, reaction effect is more preferable.Lime reaction area maintains under alkaline condition, mutually not opposite with ferric trichloride
It answers.Making the dosage of two kinds of medicaments has decline.Scene is without artificial on duty, the on-line continuous opsonic reaction plant bulk of selection
For 2580mm × 2475mm × 2353mm.Greatly save occupied area and space.
Application Example 2
ZhangZhou large size city sewage plant, practical day handle about 130,000 tons of sewage, generate the dirt that over dry sludge quantity is 48 tons
Waterworks sludge (secondary settling tank sludge), moisture content 98.0%.Sludge machine processing concentrated first is left for 95% to moisture content
It is right.It is sent to conditioner and adds two kinds of liquid conditioning medicaments respectively and improved, be then sent into high pressure plate and frame type filter-press, filters pressing
Moisture content of the cake is 60% afterwards.Scene improves 2, tank using steel construction, and volume is 12 cubes.Since liquid conditioning medicament is best
Response intensity and time difference, steel construction, which improves, only has a kind of single stirring in tank.Mud is also with medicament time of contact
Fixed.Therefore replace with on-line continuous opsonic reaction device of the invention described in embodiment 1.
Through on-line continuous opsonic reaction device of the invention, liquid improves medicament respectively in the area A and the area B and mud contacts,
And it is uniformly mixed.Due to frequency conversion control, the stirring intensity of blender is adjusted according to medicament property.Again because of liquidometer signal
Feedback, adjusts the liquid level of reactor A and B.Keep the reaction time different.
The on-line continuous opsonic reaction device for deep sludge dewatering process chemical conditioning medicament in the present invention, can be with
It realizes for slip fluctuation and auto-adjustment control added amount of chemical, and when auto-adjustment control stirring intensity and stirring
Between.Integrated Steel Structural Design, it is small in size, it is at low cost, mud can be improved from interval or semi-batch and become continuity tune
Reason.To make the continuous operation of the full production line of deep sludge dewatering process.
Claims (9)
1. a kind of on-line continuous opsonic reaction device for deep sludge dewatering process mud chemical conditioning, which is characterized in that
It includes: power control cabinet, PLC automatic control system, cabinet, pedestal, motor, blender, liquidometer, PH measuring instrument, sludge concentration
Meter, solenoid valve；Cabinet is installed on pedestal；Cabinet is equipped with power control cabinet, and power control cabinet is equipped with PLC automatic control system；Cabinet
It is equipped with mud inlet, mud mouth；On the feeding pipe being connect with mud inlet be equipped with inlet control valve, the inlet control valve with
The output end of PLC automatic control system connects；Be equipped with three mutually isolated reaction zones in cabinet, i.e. reaction zone A, reaction zone B,
Reaction zone C, each reaction zone is interior to be equipped with blender, is connected respectively with three groups of independent variable-frequency motors, three groups of independent variable-frequency electrics
Machine is connect with the output end of PLC automatic control system respectively；It is equipped with chemical feed pipe in reaction zone, chemical feed pipe is equipped with solenoid valve, should
Solenoid valve and the output end of PLC automatic control system connect；Cabinet is equipped with online monitoring instruments liquidometer, PH measuring instrument, dirt
The input terminal of mud densimeter, these online monitoring instruments and PLC automatic control system connects；The device can be according to liquidometer, PH
The measured signal feedback of measuring instrument, sludge concentration meter, is realized to liquid level, added amount of chemical and is stirred by PLC automatic control system
Mix the automatic control of the stirring intensity of device and the reaction time of medicament and mud.
2. on-line continuous opsonic reaction device as described in claim 1, which is characterized in that between reaction zone A, reaction zone B
Equipped with connecting line；Control valve is equipped on connecting line between reaction zone A, reaction zone B；The control valve and PLC are certainly
The output end of autocontrol system connects.
3. on-line continuous opsonic reaction device as claimed in claim 1 or 2, which is characterized in that top of the box be equipped with it is multiple into
Mud mouth, body side are equipped with mud mouth；Mud inlet is connected to reaction zone A, and mud mouth is connected to reaction zone C.
4. on-line continuous opsonic reaction device as claimed in claim 1 or 2, which is characterized in that each reaction zone is equipped with one
Root chemical feed pipe.
5. on-line continuous opsonic reaction device as claimed in claim 1 or 2, which is characterized in that top of the box is equipped with exhaust outlet；
Bottom of box side is equipped with sludge evacuation port.
6. on-line continuous opsonic reaction device as claimed in claim 1 or 2, which is characterized in that reaction zone B and reaction zone C it
Between use top overflow mode of communicating.
7. on-line continuous opsonic reaction device as claimed in claim 1 or 2, which is characterized in that reaction zone A, reaction zone C it
Between be equipped with connecting line；The connecting line is connected to sludge evacuation port.
8. on-line continuous opsonic reaction device as claimed in claim 1 or 2, which is characterized in that
The operational process of the device is:
(1) sludge is pumped into reaction zone A through conveying, meanwhile, chemical conditioning medicament is pumped into reaction zone A, the two through medicament conveying
Uniform mixing is wherein being reached by the effect of blender；Meanwhile PLC automatic control system is according to the control liquid level and liquid of setting
The measured signal feedback of position meter, auto-adjustment control react duration and stirring intensity；
(2) when reaching the reaction time, mixed liquor is flowed into from reaction zone A by the connecting line between reaction zone A and reaction zone B anti-
Answer area B；In reaction zone B, medicament delivery pump can be sent into second of chemical conditioning medicament, make mixed liquor and second of chemical conditioning
Medicament realizes uniform mixing under the stirring of the area B blender；Meanwhile PLC automatic control system according to the sludge concentration of setting and
The measured signal of sludge concentration meter is fed back, and auto-adjustment control reacts duration and stirring intensity；
(3) when reaching the reaction time, well-mixed mixed liquor was carried out with two kinds of medicaments respectively, passes through overflow from reaction zone B
Flow into reaction zone C；In reaction zone C, medicament delivery pump can be sent into the third chemical conditioning medicament, make mixed liquor and the third change
It learns conditioning medicament and realizes uniform mixing under the stirring of the area C blender；Meanwhile PLC automatic control system is according to the sludge of setting
The measured signal of concentration and sludge concentration meter feedback, auto-adjustment control react duration and stirring intensity；
(4) when mixed liquor reaches the reaction time, on-line continuous opsonic reaction device can be sent out, is sent into rear end dewatering system.
9. on-line continuous opsonic reaction device as claimed in claim 1 or 2, which is characterized in that in whole device operational process
In, liquidometer, sludge concentration meter and PH measuring instrument can monitor the variation of mud level, sludge concentration concentration and pH value on-line,
And feed back to PLC automatic control system；According to the analysis that PLC automatic control system makes mud level data, PLC is controlled automatically
System processed can control to adjust opening or closing for the control valve on the connecting line between reaction zone A, reaction zone B, will react
Object transmits or is automatically stopped transmission to next reaction zone；According to PLC automatic control system to sludge concentration and pH value data
The analysis made, PLC automatic control system can control to adjust three groups of motors, thus when realizing to blender stirring intensity and stirring
Between control, also, PLC automatic control system can control to adjust the solenoid valve on chemical feed pipe, to control administration timing of drug, to change
Become dosage.
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| CN112010532A (en) * | 2020-09-16 | 2020-12-01 | 北京城市排水集团有限责任公司清河第二再生水厂 | Sludge treatment system and sludge treatment method |
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