CN105174402B - A kind of automatic adding flocculant system settled for black water and its method - Google Patents
A kind of automatic adding flocculant system settled for black water and its method Download PDFInfo
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- CN105174402B CN105174402B CN201510618570.1A CN201510618570A CN105174402B CN 105174402 B CN105174402 B CN 105174402B CN 201510618570 A CN201510618570 A CN 201510618570A CN 105174402 B CN105174402 B CN 105174402B
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- 239000010866 blackwater Substances 0.000 title claims abstract description 60
- 239000003814 drug Substances 0.000 claims abstract description 124
- 239000002562 thickening agent Substances 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 230000003139 buffering Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 37
- 230000004087 circulation Effects 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 17
- 239000000654 additive Substances 0.000 claims description 13
- 230000000996 additive Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 239000000523 sample Substances 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 8
- 230000004907 flux Effects 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- 230000001105 regulatory Effects 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000005755 formation reaction Methods 0.000 claims description 5
- 239000003250 coal slurry Substances 0.000 claims description 4
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- 239000003405 delayed action preparation Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000007792 addition Methods 0.000 abstract description 12
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 24
- 239000003245 coal Substances 0.000 description 24
- 238000005352 clarification Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 230000001702 transmitter Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000008394 flocculating agent Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
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- 210000003932 Urinary Bladder Anatomy 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 230000016615 flocculation Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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Abstract
The present invention discloses a kind of automatic adding flocculant system settled for black water, including thickener, in addition to following part：Slime water automatic dosing system, the automatic medicament feeding system is included successively along black water pan feeding detection unit even, policer operation unit, medicament adding device；Medicament decentralized system, the system includes the efficient preparing bucket of bilobed wheel heating and medicament addition buffer barrel of connection medicament adding device, and medicament addition buffering bottom of the barrel is provided with two discharging openings, respectively towards constant dosing passage and variable dosing passage；The medicament of constant dosing passage and variable dosing passage is imported into black water feeding pipe；Slime water automatic dosing system, medicament decentralized system are electrically connected with control system.Present invention also offers a kind of adding method of automatic adding flocculant system, more save pharmaceutical quantities, improve black water effect of settling.
Description
Technical field
The invention belongs to coal preparation technology field, and in particular to a kind of automatic adding flocculant system settled for black water
And its method.
Background technology
Slime water treatment is all one of most important ring in all coal preparation plants in addition to dry separation.Slime water treatment technique
It is fine or not, whether improve and directly affect the production of coal preparation plant and whether can be smoothed out, be evaluate coal preparation plant's technology and
One of most important factor of managerial skills, slime water treatment effect quality influence even determine a mining area economic benefit and
Social benefit.The effect that slime water system is responsible for and reclaims coal slime, reclaims water resource, its final purpose is to meet environmental requirement reality
Existing closed water circuit.
In slime water treatment, technical staff is taken in thickener generally according to concentration distribution material bed in concentration basin
The method that preceding pan feeding pipeline directly adds flocculating agent and flocculant, to reach that black water comparatively fast purifies, precipitates purpose；For flocculation
The number of agent addition directly affects the effect of settling of black water.Way both at home and abroad most commonly is to first pass through manually at present
A kind of method (utilizing " coal slime feeler lever ", stock above has scale to visit the thickness of bed in thickener) elicites thing in concentrator
The thickness of the bed of material, rule of thumb judges that addition flocculating agent and flocculation dosage are increase or reduction.
In the prior art, domestic and international more advanced Automatic Dosing mode is disclosed in Chinese patent literature CN1958116A
" automatic adding flocculant is united and its method ", it detects the concentration and flow of black water according to densimeter and flowmeter, by work
Control machine controlling pump adds flocculant, and sensor detects the concentration of overflow water, then judges overflow water concentration by industrial computer, decides whether
Start pump dosing into concentration basin；The system and method has saved flocculant usage, has improved clean coal yield, but there is following ask
Topic, causes it not promoted the use in coal preparation plant：(1) system imperfection, only provides a kind of Automatic Dosing method, do not hand over how
Add medicament and which kind of means dispersions taken, with the purpose for reaching depth clarification black water and saving medicament；(2) system
Use open loop mode, it is impossible to the pharmaceutical quantities implementing monitoring added, feedback and amendment, often occur in use
Actual interpolation pharmaceutical quantities and setting addition have deviation, cause the waste of medicament；(3) using thickener overflow concentration as uniquely examining
Core index, is not inconsistent with actual conditions, and in the clarification of coal slime water depth, engineers and technicians would generally be concerned about two problems, first
It is the concentration distribution situation of bed in thickener, next to that overflow water concentration, if being only concerned overflow water concentration and ignoring concentration
Bed changes in machine, and medicament is added simply, it will cause thickener " pressure rake " phenomenon (namely due in thickener bed it is too thick,
Concentration is too big, causes the rake stop motion of circular motion, and the phenomenon for causing material can not be discharged from thickener underflow mouthful),
The normal production of coal preparation plant will be had a strong impact on.
Therefore, those skilled in the art need a kind of more saving pharmaceutical quantities of offer, the more perfect black water that is used for badly and settled
Automatic adding flocculant system and its method.
The content of the invention
For above-mentioned deficiency, more save pharmaceutical quantities the invention provides a kind of, more perfect be used for what black water was settled
Automatic adding flocculant is united and its method.
A kind of automatic adding flocculant system settled for black water is provided one of to achieve the above object, and the present invention is adopted
With following technical scheme：
A kind of automatic adding flocculant system settled for black water, including thickener, in addition to following part：
Slime water automatic dosing system, the automatic medicament feeding system is included successively along black water pan feeding detection unit even, prison
Control operating unit, medicament adding device；The data signal output of the black water pan feeding detection unit with policer operation list
Member is connected, and the instruction transmission end of policer operation unit is connected with medicament adding device；
Medicament decentralized system, the efficient preparing bucket of bilobed wheel heating and medicament that the system includes connection medicament adding device adds
Plus buffer barrel, medicament addition buffering bottom of the barrel is one of whereabouts screw pump and medicament buffer barrel, electronic provided with two discharging openings
Gate valve, constant current medicament flowmeter, multiple jet nozzles constitute constant dosing passage, another whereabouts diaphragm metering pump and variable
Medicament flowmeter, jet nozzle constitute variable dosing passage；The medicament of constant dosing passage and variable dosing passage import to
In black water feeding pipe, and the direction of jet nozzle is consistent with pan feeding direction in black water feeding pipe；
The control system being made up of PLC, slime water automatic dosing system, medicament decentralized system are electrically connected with control system
Connect.
It is preferred that, the black water pan feeding detection unit is set to electromagnetic flowmeter and differential densimeter, is respectively used to inspection
Measure the mineral slurry flux and pulp density of thickener feeding pipe, the policer operation unit includes PLC and electrically connected with PLC
Touch-screen, the medicament adding device includes measuring pump.
Further, the efficient preparing bucket of the bilobed wheel heating includes being fixed on the bilobed wheel stirring of staving axis upper end
Device, the periphery of Double-impeller stirrer is installed with sleeve, and the axis of sleeve is overlapped with the axis of agitator；Set on the sleeve
Have a first circulation hole, the Double-impeller stirrer is provided with second circulation hole on upper impeller, first circulation hole, second circulation hole with
Lower impeller coordinates, and forms the turbulence flow flied in agitator inner loop.
Further, multiple resistance heating coils are also uniformly provided with the inwall that bilobed wheel generates heat efficient preparing bucket；
Bilobed wheel, which generates heat, is also equipped with multiple viscosity detection probes being distributed in bucket in efficient preparing bucket, the viscosity detection probe with
Policer operation unit is electrically connected.
Further, the temperature of liquid medicine is controlled in the efficient preparing bucket of the bilobed wheel heating by resistance heating coil
At 40 to 50 DEG C.
Further, liquid level sensor I, many rod impeller-agitators are installed in the rod impeller stirring buffer barrel,
Liquid level sensor I is electrically connected with PLC.
Further, the liquid level sensor II electrically connected with PLC is designed with the medicament buffer barrel, passes through constant current medicament
The data of flowmeter, the correspondingly open degree of control electric gate valve carry out the flow of regulating agent, and then control liquid level to be in setting
It is interval.
Further, multiple jet nozzles are arranged on towards identical on the axis of thickener feeding pipe；And in jet
It is also equipped with being sufficiently mixed the pipe-line mixer of medicament and black water at the downstream of nozzle, on the pipeline of thickener feeding pipe.
Further, the water conservancy diversion for closing black water formation eddy flow in thickener feeding pipe is assembled in the jet nozzle provided with one
Blade；
The pipe-line mixer is set to the multigroup liquid mixed cell installed in the duct, and each mixed cell is by multiple solid
Fixed blade intersects composition by predetermined angular.
The second object of the present invention is to provide a kind of adding method of above-mentioned automatic adding flocculant system, specifically include with
Lower process：
Concentration in S1, thickener is sent to after slime water automatic dosing system in real time, and black water pan feeding detection unit is first
First pass through electromagnetic flowmeter and detect the mineral slurry flux and pulp density of thickener feeding pipe, data-signal with differential densimeter
Transmit to PLC, flow is multiplied with concentration calculates total dry coal slurry amount, and various data are shown on touch-screen；
Control parameter is set according to display data on the touchscreen by dispatcher, then by PLC is according to setup parameter and adopts
The data-signal of collection calculates additive amount of medicament；
S2, set after additive amount of medicament, medicament is added to the bilobed wheel of medicament decentralized system and generated heat in efficient preparing bucket,
Circulation turbulence flow flied is formed, the quick stirring and dissolving of medicament at 40 to 50 DEG C is set as multiple viscosity detection probe data meet
Definite value, that is, open pan feeding pump and export solution to rod impeller stirring buffer barrel, liquid level sensor I detects material liquid level in bucket,
Until liquid level meets the requirements；Many rod impeller-agitators slowly run, and maintain to have prepared the state of flocculant；
S3, the pump of medicament buffering two discharging openings of bottom of the barrel are opened, and one of discharging opening solution removes constant dosing passage,
Open degree through electric gate valve carrys out the flow of regulating agent, and another discharging opening solution removes variable dosing passage, and two dosings are led to
The medicament in road sprays through jet nozzle, then after being sufficiently mixed with the black water that is flowed into from thickener feeding pipe through pipe-line mixer
Finally flow into thickener.
The beneficial effects of the present invention are：
1), slime water automatic dosing system of the present invention, medicament decentralized system, control system coordinates composition flocculant certainly jointly
Dynamic add-on system, greatly improves with the adding method automaticity of the system adaptation, considerably reduces the throwing of manpower and materials
Enter, slime water automatic dosing system calculates additive amount of medicament, drives medicament adding device Automatic Dosing by PLC, adds from medicament
Plus the quantitative medicament inflow medicament decentralized system of unit is fully dissolved after disperseing, through multiple jet nozzles in two dosing passages
Flowed into black water to ejection in the same direction, the mixing of medicament and black water is more uniform, and then more saves pharmaceutical quantities.
2), the present invention can be applicable in coal slime water depth clarification system, wherein, medicament adding device is that black water adds automatically
The final execution link of medicine system, system calculates optimal flocculating agent and flocculant medicine at this concentration according to total dry coal slurry amount
Amount, dosing is carried out by measuring pump and electrically operated valve.Simultaneously constantly according to actual slime water flow and flow and the coal slime depth of water
The data message that concentration detection system is fed back in thickener in degree clarification system, calculates additive amount of medicament and constant chemical feeding quantity
Difference, by controlling the diaphragm metering pump of variable dosing passage to complete, is conducive to additive amount of medicament rapid in place, eliminates medicament
The hysteresis quality of addition.Medicament is fallen into after medicament decentralized system, the general nonvoluntary change of the electric gate valve in constant dosing passage
Aperture, unless great change occurs for ature of coal, be conducive to the stabilization of medicine system with it is accurate.Diaphragm type is measured on variable dosing passage
Pump out and flowmeter is installed at expects pipe, because measuring pump is rotating machinery, the abrasion of its own moving component, pushing away over time
Shifting is likely to result in metering pump delivery and there is error with metering, in this ring layout closed-circuit system, is conducive to metering pump-metered accurate
Really with correction.
3), agitator is set to the efficient preparing bucket of bilobed wheel heating in the present invention, and compared with traditional agitator, its advantage exists
In：1. impeller outer, which has on sleeve, sleeve, circulation port, can promote the dissolving of medicament；2. used impeller is bilobed wheel, on
Also there is circulation port on impeller, coordinate with lower impeller, form just right turbulence flow flied；3. agitator inwall is provided with 2 groups of electricity
Heat coil is hindered, the temperature control of liquid medicine is conducive to the quick dissolving of medicament, it is ensured that medicament is in the winter time at 40 to 50 DEG C
Quick dissolving.4. multiple solution viscosity detection probes are installed, viscosity detection probe is electrically connected with policer operation unit in bucket,
Such as multiple viscosity detection probe data meet setting value, illustrate that solution prepares completion, realize the automatic prison of solution preparing processes
Control.
4), multiple jet nozzles of the invention are arranged on towards identical on the axis of thickener feeding pipe, make medicament molten
Liquid jet in the confined space, forms Liu He areas, basic flow region, recirculating zone, Guan Liuqu, has been showed in downstream compared with far region
The flow behavior of full pipe stream, promotes medicament and is mixed with the uniform of black water, guarantee is provided for the saving of pharmaceutical quantities.
5), the present invention is also equipped with pipe-line mixer at the downstream of jet nozzle, on the pipeline of thickener feeding pipe, is
Some groups of liquid mixed cells are installed in the duct, each mixed cell is handed over by a number of fixed blade by predetermined angular
Fork composition；The guide vane for closing black water formation eddy flow in thickener feeding pipe is assembled in jet nozzle provided with one, is conducive to medicine
Agent is further well mixed with black water, improves the service efficiency of medicament.
Brief description of the drawings
Fig. 1 is applied to the flow chart in coal slime water depth clarification system for the present invention.
Fig. 2 is the flow chart of concentration online monitoring system in thickener in coal slime water depth clarification system.
Fig. 3 is the flow chart of slime water automatic dosing system of the present invention.
Fig. 4 in coal slime water depth clarification system to the operational flowchart of density tester institute gathered data in thickener.
Fig. 5 applies the equipment in coal slime water depth clarification system to connect schematic diagram for the present invention.
Fig. 6 is the structure schematic diagram of intelligent concentration pot in coal slime water depth clarification system.
Fig. 7 is the structure schematic diagram of density tester in thickener in coal slime water depth clarification system.
Fig. 8 is the configuration diagram that the efficient preparing bucket of bilobed wheel of the present invention heating and rod impeller stir buffer barrel.
Fig. 9 is the front view structure schematic diagram of jet nozzle in the present invention.
Figure 10 is the top view of jet nozzle in the present invention.
The implication of label symbol is as follows in figure：
Concentration online monitoring system A1- intelligence concentration pot A11- shell bodies in A- thickeners
A111- neck A112- handle fixing device A113- internal bladder support A114- displays
A12- inner bag A13- sensors A 131- upper backup pad A132- lower supporting plates
Density tester in A133- upper backup pad baffle plate A134- lower supporting plate baffle plate A2- thickeners
A21- pressure transmitters
The differential densimeters of B- slime water automatic dosing system B1- electromagnetic flowmeters B2-
The efficient preparing bucket C2- screw pumps of C- medicament decentralized system C1- bilobed wheels heating
Impeller on C11- Double-impeller stirrer C12- sleeve C 120- first circulations hole C13-
Impeller C15- resistance heatings coil C16- viscosity detection probe C3- medicaments under C130- second circulations hole C14-
The C4- electric gate valves of buffer barrel C30- liquid level sensors II
C5- constant current medicament flowmeter C6- jet nozzle C60- guide vane C7- pipe-line mixers
C8- diaphragm metering pump C9- variable medicament flowmeters
The many rod impeller-agitator D- concentrations of the C101- of C10- rods impeller stirring buffer barrel C100- liquid level sensors I
Machine
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the present invention is clearly and completely retouched
State.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
The present invention of embodiment 1. is applied in coal slime water depth clarification system
As shown in Fig. 1~5, a kind of coal slime water depth clarification system, including thickener D, in addition to following part：
1. concentration online monitoring system A in thickener, the system includes concentration on-line checking in correction portion and thickener
Part, correction portion is corrected to the data of concentration on-line checking part in thickener；
2. automatic adding flocculant is united, and automatic adding flocculant system of the present invention includes：
Slime water automatic dosing system B, the automatic medicament feeding system is included successively along black water pan feeding detection unit even, prison
Control operating unit, medicament adding device；Concentration on-line checking part, the data of black water pan feeding detection unit in the thickener
Signal output part is connected with policer operation unit, and the instruction transmission end of policer operation unit is connected with medicament adding device；
Medicament decentralized system C, the system includes connection medicament adding device, the bilobed wheel heating of reception medicament is efficiently prepared
Bucket C1, the rod impeller stirring buffer barrel C10 bottoms of depot preparation provided with two discharging openings, one of whereabouts screw pump C2 with
Medicament buffer barrel C3, electric gate valve C4, constant current medicament flowmeter C5, multiple jet nozzle C6 constitute constant dosing passage, another
Individual whereabouts diaphragm metering pump C8 constitutes variable dosing passage with variable medicament flowmeter C9, jet nozzle C6；Constant dosing is led to
The medicament of road and variable dosing passage is imported into black water feeding pipe, and jet nozzle C6 direction with black water pan feeding
Pan feeding direction is consistent in pipe；
Concentration online monitoring system, slime water automatic dosing system, medicament in the control system being made up of PLC, thickener
Decentralized system is electrically connected with control system.
Wherein, the correction portion be set to be sampled material in thickener and quick detection concentration intelligent concentration pot
A1；Concentration on-line checking part is set to density tester A2 in thickener in the thickener.
As shown in fig. 6, the intelligent concentration pot A1 includes cubic type shell body A11 and is arranged in shell as receipts
Collect the tubular inner bag A12 of black water；The shell body A11 epimeres are provided with handle fixing device A112 provided with neck A111, stage casing
And internal bladder support A113, neck A111 and internal bladder support A113 are used to fix inner bag A12, hypomere is installed with display A114,
The sealing space bottom that shell body A11 and inner bag A12 is surrounded is fixedly provided with sensors A 13, the upper and lower both sides of sensors A 13 difference
Provided with upper and lower supporting plate A131, A132, and upper and lower supporting plate A131, A132 is respectively arranged on the left side and the right side upper and lower supporting plate
Baffle plate A133, A134；The sensors A 13 is connected with display A114, and sensors A 13 will gather the weight of coming in the operating condition
Amount signal is converted to slime water flow and is shown on display A114；
As shown in fig. 7, density tester A2 is set to vertically uniformly divide multiple pressure transmitter A21 in the thickener
Cloth is fixed on the test device in sealing container；Pressure transmitter A21 voltage output signal is gathered using data collecting card.It is dense
In contracting machine density tester A2 collection obtained by data can by software for calculation draw thickener in concentration or density isopleth and
Cloud atlas, feeds for chemical feeding quantity, pan feeding and underflow discharge provides technological guidance, specifically, handling process of the software for calculation to data
As shown in Figure 4.Pressure transmitter A21 voltage output signal is gathered using data collecting card.
Wherein, pressure transmitter A21 is using diffusion silicon type pressure transmitter；Data collecting card uses many work(of MPS-010602
Can usb signal capture card.
As shown in Figure 1,5, the black water pan feeding detection unit is set to electromagnetic flowmeter B1 and differential densimeter B2, point
The mineral slurry flux and pulp density of thickener feeding pipe Yong Yu not be detected, the policer operation unit includes PLC and and PLC
The touch-screen of electrical connection, the medicament adding device includes measuring pump.
As shown in figure 8, the bilobed wheel generates heat, efficient preparing bucket C1 includes the bilobed wheel for being fixed on staving axis upper end
Agitator C11, Double-impeller stirrer C11 periphery are installed with sleeve C 12, the axis of sleeve C 12 and the axis of agitator
Overlap；The sleeve C 12 is provided with first circulation hole C120, and the Double-impeller stirrer is followed on upper impeller C13 provided with second
Annular distance C130, first circulation hole C120, second circulation hole C130 coordinate with lower impeller C14, are formed in agitator inner loop
Turbulence flow flied；Multiple resistance heating coil C15 are also uniformly provided with the inwall that bilobed wheel generates heat efficient preparing bucket C1.
Some viscosity detection probe C16 are installed in the efficient preparing bucket C1 of bilobed wheel heating, viscosity detection probe C16 is
Disposed at equal distance is in bucket, and viscosity detection probe C16 will detect that data are transmitted to policer operation unit by signal transmission unit.
Such as multiple viscosity detection probe C16 data meet setting value, illustrate prepared by flocculation medicament and complete, that is, open pan feeding pump by solution
Output to rod impeller stirs buffer barrel C10.
The C100 of liquid level sensor I, many rod impeller-agitator C101 are installed in rod impeller stirring buffer barrel C10.Liquid
The C100 of level sensor I is used to detect material liquid level in bucket；Many rod impeller-agitator C101 slowly run, and maintenance has prepared wadding
The state of solidifying agent.
As shown in figure 5, being designed with the C30 of liquid level sensor II electrically connected with PLC in the medicament buffer barrel C3, pass through perseverance
Stream medicament flowmeter C5 data, correspondingly control electric gate valve C4 open degree carry out the flow of regulating agent, and then control liquid
Position is interval in setting.
Multiple jet nozzle C6 are arranged on towards identical on the axis of thickener feeding pipe；And jet nozzle C6's
It is also equipped with being sufficiently mixed the pipe-line mixer C7 of medicament and black water at downstream, on the pipeline of thickener D feeding pipes.
As shown in Fig. 9,10, black water formation eddy flow in conjunction thickener feeding pipe is assembled provided with one in the jet nozzle C6
Guide vane C60, guide vane C60 is set to 4.
The pipe-line mixer C7 is set to the multigroup liquid mixed cell installed in the duct, and each mixed cell is by multiple
Fixed blade intersects composition by predetermined angular.
The temperature of liquid medicine is controlled 40 by resistance heating coil C15 in the efficient preparing bucket C1 of the bilobed wheel heating
To 50 DEG C.
The present invention of embodiment 2. applies the handling process in coal slime water depth clarification system
The handling process specifically includes following process：
Thickener D is detected by density tester A2 in thickener in real time in concentration online monitoring system A in S1, thickener
Interior material bed change, data acquisition draws concentration or density isopleth and cloud atlas in thickener D by software for calculation, shows
Show CONCENTRATION STATE in thickener D, alarm is sent when concentration transfinites, and then adjust thickener chemical feeding quantity；Meanwhile, in the online prison
During survey by the intelligent concentration pot A1 sampling monitorings of thickener after, concentration on-line detecting system A in thickener is carried out regular
Safeguard and Data correction, specifically as shown in Figure 1, 2；
S2, as shown in Figure 1,3, the concentration in thickener D is sent to after slime water automatic dosing system B in real time, black water
Pan feeding detection unit detects the mineral slurry flux of thickener D feeding pipes by electromagnetic flowmeter B1 and differential densimeter B2 first
With pulp density, data signal transmission to PLC, flow is multiplied with concentration calculates total dry coal slurry amount, and various data are shown in
On touch-screen；Control parameter is set according to display data on the touchscreen by dispatcher, then by PLC is according to setup parameter and adopts
The data-signal of collection calculates optimal additive amount of medicament；Simultaneously constantly according in actual slime water flow and flow and thickener
The data message that line monitoring system A is fed back, calculates chemical feeding quantity, by controlling measuring pump to adjust additive amount of medicament in real time
It is whole；For specific coal preparation plant, coal slime aqueous nature is limited in a period of time undulating value, and medicament addition is main by constant dosing passage
Complete；Calculate additive amount of medicament and the difference of constant chemical feeding quantity is completed by variable medicament channel, be conducive to additive amount of medicament rapid
In place, the hysteresis quality of medicament addition is eliminated；Flowmeter is additionally provided with the pipeline of variable dosing passage, based on detecting diaphragm type
The output quantity of pump is measured, detected value is contrasted with measuring pump variable itself, realizes the feedback of data and the prison of measuring pump working condition
Control；
Wherein, slime water automatic dosing system B is provided with fully automatic mode and semiautomatic-mode：Under fully automatic mode, PLC roots
The flocculating agent and flocculant of addition needed for being calculated automatically according to data such as the slime water flows, flow detected, and be added；Hand
Under dynamic model formula, post driver sets flocculating agent and flocculant according to system acquisition to the data being shown on touch-screen, manually
Addition, PLC calculates the addition of medicament according to given control parameter；
Then, post driver output control signal driving measuring pump and electrically operated valve progress Automatic Dosing again；Constantly simultaneously
The data message fed back according to concentration online monitoring system A in actual slime water flow and flow and thickener, calculates and adds
Dose, by controlling measuring pump to adjust additive amount of medicament in real time；, can be by system and PLC is reserved with communication interface
Data transfer is monitored to dispatching；
S3, as shown in Fig. 5,7, set after additive amount of medicament, medicament be added to medicament decentralized system C bilobed wheel heating
In efficient preparing bucket C1, circulation turbulence flow flied is formed, the quick stirring and dissolving of medicament at 40 to 50 DEG C, such as multiple viscositys, which are detected, to be visited
Head C16 data meet setting value, that is, open pan feeding pump and solution is pumped into rod impeller stirring buffer barrel C10, rod impeller
The C100 of liquid level sensor I, many rod impeller-agitator C101 are installed in stirring buffer barrel C10.The C100 of liquid level sensor I is used for
Material liquid level in bucket is detected, data are detected according to material liquid level in medicament buffer barrel, the pharmaceutical quantities of consumption are calculated；Many rod impellers
Agitator C101 slowly runs, and maintains to have prepared the state of flocculant；
Liquid medicine output at most rod impeller stirring buffer barrel C10 after dissolving, two discharging openings of the bottom of the barrel, wherein
One discharging opening solution goes on constant dosing passage, constant dosing passage to be designed with liquid level sensor II in medicament buffer barrel C3
C30, being in liquid level, setting is interval, and the stabilization for being medicament in constant dosing passage, constant flow into and provide guarantee, wherein, perseverance
Amount medicament flowmeter C5 provides data for electric gate valve C4 regulation and supported, then the open degree through electric gate valve carrys out regulating agent
Constant flow rate；Another discharging opening solution removes variable dosing passage, and the medicament of two dosing passages sprays through jet nozzle C6；
On the axis that thickener D feeding pipes are installed in due to jet nozzle C6, and towards with pan feeding side in black water feeding pipe
To consistent, it is ensured that the jet in the confined space, so that with the black water that is flowed into from thickener D feeding pipes through pipe-line mixer
After the full and uniform mixing of C7, thickener D is finally flowed into.
Claims (10)
1. a kind of automatic adding flocculant system settled for black water, including thickener (D), it is characterised in that also including such as
Lower part：
Slime water automatic dosing system (B), the automatic medicament feeding system is included successively along black water pan feeding detection unit even, monitoring
Operating unit, medicament adding device；The data signal output of the black water pan feeding detection unit with policer operation unit
It is connected, and the instruction output end of policer operation unit is connected with medicament adding device；
Medicament decentralized system (C), the system includes connection medicament adding device, receives the efficient preparing bucket of bilobed wheel heating of medicament
(C1), the rod impeller stirring buffer barrel (C10) of depot preparation, the stirring bottom of the barrel is provided with two discharging openings, and one of them goes
To successively along the screw pump (C2) and medicament buffer barrel (C3), electric gate valve (C4), constant current medicament for even constituting constant dosing passage
Flowmeter (C5), multiple jet nozzles (C6), another whereabouts is successively along the diaphragm metering pump for even constituting variable dosing passage
(C8) with variable medicament flowmeter (C9), jet nozzle (C6)；The medicament of constant dosing passage and variable dosing passage is imported
Into black water feeding pipe, and the direction of jet nozzle (C6) is consistent with pan feeding direction in black water feeding pipe；
The control system being made up of PLC, slime water automatic dosing system (B), medicament decentralized system (C) are electrically connected with control system
Connect.
2. a kind of automatic adding flocculant system settled for black water according to claim 1, it is characterised in that：Institute
State black water pan feeding detection unit and be set to electromagnetic flowmeter (B1) and differential densimeter (B2), be respectively used to detect thickener
The mineral slurry flux and pulp density of feeding pipe；The policer operation unit includes PLC and the touch-screen electrically connected with PLC；Institute
Stating medicament adding device includes measuring pump.
3. a kind of automatic adding flocculant system settled for black water according to claim 2, it is characterised in that：Institute
Stating the efficient preparing bucket (C1) of bilobed wheel heating includes being fixed on the Double-impeller stirrer (C11) of staving axis upper end, bilobed wheel
The periphery of agitator (C11) is installed with sleeve (C12), and the axis of sleeve (C12) is overlapped with the axis of agitator；The set
Cylinder (C12) is provided with first circulation hole (C120), and the Double-impeller stirrer is provided with second circulation hole on upper impeller (C13)
(C130), first circulation hole (C120), second circulation hole (C130) and lower impeller (C14) coordinate, and formation is followed inside agitator
The turbulence flow flied of ring.
4. a kind of automatic adding flocculant system settled for black water according to claim 3, it is characterised in that：
Multiple resistance heating coils (C15) are also uniformly provided with the inwall of the efficient preparing bucket (C1) of bilobed wheel heating；In bilobed wheel heating
Multiple viscosity detection probes (C16) being distributed in bucket, the viscosity detection probe are also equipped with efficient preparing bucket (C1)
(C16) electrically connected with policer operation unit.
5. a kind of automatic adding flocculant system settled for black water according to claim 4, it is characterised in that：Institute
State in the efficient preparing bucket (C1) of bilobed wheel heating and the temperature of liquid medicine is controlled 40 to 50 by resistance heating coil (C15)
DEG C, to reduce liquid medicine preparation time.
6. a kind of automatic adding flocculant system settled for black water according to claim 4, it is characterised in that：Institute
State in rod impeller stirring buffer barrel (C10) and liquid level sensor I (C100), many rod impeller-agitators (C101), liquid are installed
Level sensor I (C100) is electrically connected with PLC.
7. a kind of automatic adding flocculant system settled for black water according to claim 6, it is characterised in that：Institute
The liquid level sensor II (C30) for being designed with and being electrically connected with PLC in medicament buffer barrel (C3) is stated, passes through constant current medicament flowmeter (C5)
Data, correspondingly the open degree of control electric gate valve (C4) carry out the flow of regulating agent, and then control liquid level to be in setting area
Between.
8. a kind of automatic adding flocculant system settled for black water according to claim 7, it is characterised in that：It is many
Individual jet nozzle (C6) is arranged on towards identical on the axis of thickener feeding pipe；And in jet nozzle (C6) downstream
It is also equipped with being sufficiently mixed the pipe-line mixer (C7) of medicament and black water in place, the pipeline of thickener feeding pipe.
9. a kind of automatic adding flocculant system settled for black water according to claim 8, it is characterised in that：Institute
State the guide vane (C60) for being assembled in jet nozzle (C6) provided with one and closing black water formation eddy flow in thickener feeding pipe.
10. a kind of adding method of the automatic adding flocculant system settled as claimed in claim 8 for black water, its feature
It is to specifically include following steps：
In S1, slime water automatic dosing system (B), black water pan feeding detection unit passes through electromagnetic flowmeter (B1) and pressure difference first
Formula densimeter (B2) detects the mineral slurry flux and pulp density of thickener (D) feeding pipe, data signal transmission to PLC, flow
It is multiplied with concentration and calculates total dry coal slurry amount, various data is shown on touch-screen；
Control parameter is set according to display data on the touchscreen by dispatcher, then by PLC according to setup parameter and collection
Data-signal calculates additive amount of medicament；
S2, set after additive amount of medicament, the bilobed wheel that medicament is added to medicament decentralized system (C) generates heat efficient preparing bucket (C1)
In, form circulation turbulence flow flied, such as quick stirring and dissolving of medicament at 40 to 50 DEG C, multiple viscosity detection probe (C16) data
Meet setting value, that is, open pan feeding pump and export solution to rod impeller stirring buffer barrel (C10), liquid level sensor I
(C100) material liquid level in detection bucket, until liquid level meets the requirements；Many rod impeller-agitators (C101) slowly run, and maintain
Prepare the state of flocculant；
S3, the pump of medicament buffering two discharging openings of bottom of the barrel are opened, and one of discharging opening solution removes constant dosing passage, through electricity
The open degree of dynamic gate valve (C4) carrys out the flow of regulating agent, and another discharging opening solution removes variable dosing passage, and two dosings are led to
The medicament in road sprays through jet nozzle (C6), then with the black water that is flowed into from thickener (D) feeding pipe through pipe-line mixer
(C7) it is last after being sufficiently mixed to flow into thickener (D).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510618570.1A CN105174402B (en) | 2015-09-24 | 2015-09-24 | A kind of automatic adding flocculant system settled for black water and its method |
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|---|---|---|---|
| CN201510618570.1A CN105174402B (en) | 2015-09-24 | 2015-09-24 | A kind of automatic adding flocculant system settled for black water and its method |
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| CN105174402B true CN105174402B (en) | 2017-08-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903574A (en) * | 2016-04-13 | 2016-08-31 | 中国矿业大学 | Emulsification control adding equipment for flotation reagents |
| CN108726649B (en) * | 2018-06-19 | 2021-03-26 | 张日养 | Method and device for automatically detecting and adjusting dosage in energy-saving mode |
| CN114634232A (en) * | 2022-03-09 | 2022-06-17 | 山西天地王坡煤业有限公司 | Control method, device, equipment and medium for slime water treatment system |
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| CN201873558U (en) * | 2009-05-27 | 2011-06-22 | 北京中宇科博环保工程有限公司 | Combined type full-automatic chemical adding device |
| CN102020406A (en) * | 2009-09-22 | 2011-04-20 | 商城县开源环保设备有限公司 | Automatic dosing device for sewage treatment |
| CN102385357B (en) * | 2011-07-25 | 2013-05-29 | 太原理工大学 | Automatic control system and method for coal slime flocculation settling |
| CN203999086U (en) * | 2014-07-03 | 2014-12-10 | 河南新大新材料股份有限公司 | Industrial Wastewater Treatment chemicals dosing plant |
| CN204125225U (en) * | 2014-10-13 | 2015-01-28 | 河南理工大学 | The black water sedimentation automatic medicament feeding machine of a kind of eddy flow heat molten and heat agitated in advance |
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