CN105174402A - Automatic flocculant adding system for slime water sedimentation and method thereof - Google Patents
Automatic flocculant adding system for slime water sedimentation and method thereof Download PDFInfo
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- CN105174402A CN105174402A CN201510618570.1A CN201510618570A CN105174402A CN 105174402 A CN105174402 A CN 105174402A CN 201510618570 A CN201510618570 A CN 201510618570A CN 105174402 A CN105174402 A CN 105174402A
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Abstract
The invention discloses an automatic flocculant adding system for slime water sedimentation. The system comprises a thickener, and further comprises an automatic agent adding system for slime water and an agent dispersing system. The automatic agent adding system comprises a slime water feed detection unit, a monitoring operation unit and an agent adding unit which are sequentially connected. The agent dispersing system comprises a double-impeller heating efficient preparing barrel and an agent adding buffering barrel which are communicated with the agent adding unit. Two discharge ports are formed in the bottom of the agent adding buffering barrel and led to a constant-amount agent adding passageway and a variable-amount agent adding passageway respectively. Agent of the constant-amount agent adding passageway and agent of the variable-amount agent adding passageway are both converged into a slime water feed pipe. The automatic agent adding system for slime water and the agent dispersing system are both electrically connected with a control system. The invention further provides an adding method of the automatic flocculant adding system. The agent consumption is better lowered, and the slime water sedimentation effect is improved.
Description
Technical field
The invention belongs to coal preparation technology field, be specifically related to a kind of automatic adding flocculant for black water sedimentation system and method thereof.
Background technology
Slime water treatment is all one of most important ring in all coal separating plants except dry separation.The quality of slime water treatment technique, whether improve the production directly affecting coal separating plant and whether can carry out smoothly, be one of evaluation coal separating plant's technology and the most important factor of level of management, the good bad influence of slime water treatment effect even determines economic benefit and the social benefit in a mining area.Slime water system is responsible for the effect of reclaiming coal slime, recycle-water resource, and its final purpose meets environmental requirement to realize closed water circuit.
When slime water treatment, technician, usually according to concentration distribution material bed in concentration basin, takes pan feeding pipeline before thickner directly to add the method for flocculation agent and flocculation agent, comparatively fast purifies, precipitates object to reach black water; Number for flocculant addition directly affects the effect of settling of black water.The most common way is both at home and abroad at present, first (utilize " coal slime feeler lever " by manual method, a kind of stock, on have scale can visit the thickness of bed in thickner) elicite thickness material bed in thickening equipment, rule of thumb judge add flocculation agent and flocculation dosage is increase or reduce.
In prior art, Automatic Dosing mode more advanced is both at home and abroad Chinese patent literature CN1958116A disclosed " automatic adding flocculant system and method thereof ", it detects concentration and the flow of black water according to densitometer and under meter, flocculation agent is added by industrial computer control pump, sensor detects the concentration of overflow water, judge overflow water concentration by industrial computer again, determine whether ejector priming is to dosing in concentration basin, this system and method has been saved flocculant usage, has been improve clean coal yield, but there is following problem, it is caused not promote the use in coal separating plant: (1) system imperfection, a kind of Automatic Dosing method is only provided, how explanation is not added medicament and is taked which kind of means dispersions, to reach degree of depth clarification black water and the object of saving medicament, (2) what this system adopted is open loop mode, to added pharmaceutical quantities implementing monitoring, feedback and correction, in use often cannot occur that actual pharmaceutical quantities of adding has deviation with setting addition, cause the waste of medicament, (3) using thickener overflow concentration as unique performance assessment criteria, be not inconsistent with practical situation, in the clarification of the black water degree of depth, engineering technical personnel can be concerned about two problems usually, first be the concentration distribution situation of bed in thickner, next is overflow water concentration, if be only concerned about overflow water concentration and ignore bed change in thickner, add medicament simply, thickner " pressure rake " phenomenon will be caused (also namely because bed in thickner is too thick, concentration is too large, cause the rake stop motion of circumferential motion, and cause the phenomenon that material cannot be discharged from thickener underflow mouth), the normal production of coal separating plant will be had a strong impact on.
Therefore, those skilled in the art need badly provide a kind of more save pharmaceutical quantities, the more perfect automatic adding flocculant for black water sedimentation system and method.
Summary of the invention
For above-mentioned deficiency, the invention provides a kind of more save pharmaceutical quantities, the more perfect automatic adding flocculant for black water sedimentation system and method.
One of for achieving the above object provide a kind of automatic adding flocculant for black water sedimentation to unite, present invention employs following technical scheme:
A kind of system of the automatic adding flocculant for black water sedimentation, comprises thickner, also comprises following integral part:
Slime water automatic dosing system, this automatic medicament feeding system comprises successively along the black water pan feeding detecting unit, policer operation unit, the medicament adding device that connect; The data signal output of described black water pan feeding detecting unit is all connected with policer operation unit, and the command end of policer operation unit is connected with medicament adding device;
Medicament dispersion system, this system comprises the bilobed wheel heating being communicated with medicament adding device and efficiently prepares bucket and medicament interpolation buffer barrel, two discharge ports are provided with bottom medicament interpolation buffer barrel, one of them whereabouts spiral pump and medicament buffer barrel, electric gate valve, constant current medicament under meter, multiple ejector nozzle form constant dosing passage, and another whereabouts diaphragm metering pump and variable medicament under meter, ejector nozzle form variable dosing passage; The medicament of constant dosing passage and variable dosing passage all imports in black water feeding pipe, and ejector nozzle towards all consistent with pan feeding direction in black water feeding pipe;
The Controlling System be made up of PLC, slime water automatic dosing system, medicament dispersion system are all electrically connected with Controlling System.
Preferably, described black water pan feeding detecting unit is set to magnetic flow meter and differential densitometer, be respectively used to the mineral slurry flux and the pulp density that detect thickner feeding pipe, the touch-screen that described policer operation unit comprises PLC and is electrically connected with PLC, described medicament adding device comprises volume pump.
Further, described bilobed wheel heating is efficiently prepared bucket and is comprised the Double-impeller stirrer being fixed on upper end, staving axis, and the periphery of Double-impeller stirrer is installed with sleeve, and the axis of sleeve overlaps with the axis of agitation vat; Described sleeve is provided with the first circulation pore, and described Double-impeller stirrer is provided with the second circulation pore on upper impeller, and the first circulation pore, the second circulation pore coordinate with lower impeller, are formed in the turbulence flow flied of agitation vat internal recycling.
Further, the inwall efficiently preparing bucket in bilobed wheel heating is also evenly provided with multiple resistance heating coil; Efficiently prepare in bucket in bilobed wheel heating and be also provided with multiple viscosity detection probe be distributed in bucket, described viscosity detection probe is electrically connected with policer operation unit.
Further, described bilobed wheel generates heat to efficiently preparing in bucket and controls the temperature of liquid medicine at 40 to 50 DEG C by resistance heating coil.
Further, described rod impeller stirs in buffer barrel and is provided with liquid level sensor I, many rods impeller agitator, and liquid level sensor I is electrically connected with PLC.
Further, in described medicament buffer barrel, be designed with the liquid level sensor II be electrically connected with PLC, carried out the flow of regulating agent by the data of constant current medicament under meter, the open degree that correspondingly controls electric gate valve, and then control liquid level and be between setting district.
Further, multiple ejector nozzle is towards on the identical axis being arranged on thickner feeding pipe; And the line mixer of abundant confection and black water is also installed on the pipeline of the downstream part of ejector nozzle, thickner feeding pipe.
Further, the guide vane that black water formation eddy flow in thickner feeding pipe is closed in an assembly is provided with in described ejector nozzle;
Described line mixer is set to the many groups liquid mixing unit installed in the duct, and each mixed cell is made up of by predetermined angular intersection multiple stator blades.
Two of object of the present invention is to provide a kind of addition means of above-mentioned automatic adding flocculant system, specifically comprises following operation:
After concentration in S1, thickner is sent to slime water automatic dosing system in real time, first black water pan feeding detecting unit detects mineral slurry flux and the pulp density of thickner feeding pipe by magnetic flow meter and differential densitometer, data signal transmission is to PLC, flow is multiplied with concentration and calculates total dry coal slurry amount, and various data all show on the touchscreen;
By dispatcher according to display data setup control parameter on the touchscreen, then calculate additive amount of medicament by PLC according to the data signal of setup parameter and collection;
S2, set additive amount of medicament after, the bilobed wheel heating that medicament adds medicament dispersion system to is efficiently prepared in bucket, form circulation turbulence flow flied, at 40 to 50 DEG C, medicament rapid stirring dissolves, as multiple viscosity detection probe data all meet set(ting)value, namely open pan feeding pump and solution is exported to rod impeller stirring buffer barrel, liquid level sensor I detects material liquid level in bucket, until liquid level meets the requirements; Many rods impeller agitator slowly runs, and maintains the state having prepared flocculation agent;
Bottom S3, medicament buffer barrel, the pump of two discharge ports is opened, one of them discharge port solution removes constant dosing passage, open degree through electric gate valve carrys out the flow of regulating agent, another discharge port solution removes variable dosing passage, the medicament of two dosing passages all through ejector nozzle ejection, more finally flows into thickner with the black water flowed into from thickner feeding pipe after line mixer fully mixes.
Beneficial effect of the present invention is:
1), slime water automatic dosing system of the present invention, medicament dispersion system, Controlling System coordinates formation automatic adding flocculant system jointly, greatly improve with the addition means level of automation of this system adaptation, considerably reduce the input of manpower and materials, slime water automatic dosing system calculates additive amount of medicament, the Automatic Dosing of medicament adding device is driven by PLC, after the medicament inflow medicament dispersion system that medicament adding device is quantitative fully dissolves dispersion, multiple ejector nozzle in two dosing passages and black water flow into spraying in the same way, medicament is more even with mixing of black water, and then more save pharmaceutical quantities.
2), the present invention can be applicable in black water degree of depth clarification system, wherein, medicament adding device is the final execution link of slime water automatic dosing system, system calculates best flocculation agent at this concentration and flocculation agent dose according to total dry coal slurry amount, carries out dosing by volume pump and electrically operated valve.The continuous data message fed back according to concentration detection system in thickner in actual slime water flow and flow and black water degree of depth clarification system simultaneously, calculate the difference of additive amount of medicament and constant chemical feeding quantity, come by the METERING DIAPHRAGM PUMPS of controlled variable dosing passage, be conducive to additive amount of medicament to put in place rapidly, eliminate the hysteresis quality that medicament adds.After medicament falls into medicament dispersion system, the general nonvoluntary change aperture of the electric gate valve in constant dosing passage, unless ature of coal generation significant change, is conducive to the stable and accurate of medicine system.On variable dosing passage, diaphragm metering pump discharge nozzle place is provided with under meter, because volume pump is rotating machinery, the wearing and tearing of himself moving parts, As time goes on volume pump work output and metering may be caused to there is error, in this ring layout closed-circuit system, be conducive to volume pump accurate measurement and correction.
3), in the present invention agitation vat is set to bilobed wheel heating and efficiently prepares bucket, and compared with traditional agitation vat, its advantage is: 1. impeller outer has sleeve, and sleeve has circulation pore, can promote the dissolving of medicament; 2. used impeller is bilobed wheel, and upper impeller also has circulation pore, coordinates, form just right turbulence flow flied with lower impeller; 3. agitation vat inwall is provided with 2 groups of resistance heating coils, and the temperature of liquid medicine controls at 40 to 50 DEG C, is conducive to the rapid solution of medicament, ensure that medicament rapid solution in the winter time.4. be provided with multiple solution viscosity detection probe in bucket, viscosity detection probe is electrically connected with policer operation unit, as multiple viscosity detection probe data all meet set(ting)value, illustrates prepared by solution, realizes the automatic monitoring of solution preparing processes.
4), the multiple ejector nozzle of the present invention is towards on the identical axis being arranged on thickner feeding pipe, make liquid medicine jet in the finite space, form Liu He district, basic yield zone, recirculating zone, Guan Liuqu, present the flow characteristics of pipe stream completely compared with far region in downstream, facilitate the Homogeneous phase mixing of medicament and black water, for the saving of pharmaceutical quantities is given security.
5), the present invention is also provided with line mixer on the pipeline of the downstream part of ejector nozzle, thickner feeding pipe, be be provided with some groups of liquid mixing unit in the duct, each mixed cell is made up of by predetermined angular intersection the stator blades of some amount; Be provided with an assembly in ejector nozzle to close black water in thickner feeding pipe and form the guide vane of eddy flow, be conducive to mixing further of medicament and black water, the service efficiency of raising medicament.
Accompanying drawing explanation
Fig. 1 is the schema that the present invention is applied in black water degree of depth clarification system.
Fig. 2 is the schema of concentration online monitoring system in thickner in black water degree of depth clarification system.
Fig. 3 is the schema of slime water automatic dosing system of the present invention.
Fig. 4 in black water degree of depth clarification system to the operational flowchart of density tester institute image data in thickner.
Fig. 5 is the equipment connection schematic diagram that the present invention is applied in black water degree of depth clarification system.
Fig. 6 is the structure schematic diagram of intelligent concentration pot in black water degree of depth clarification system.
Fig. 7 is the structure schematic diagram of density tester in thickner in black water degree of depth clarification system.
Fig. 8 is the configuration diagram that bucket and rod impeller stirring buffer barrel are efficiently prepared in bilobed wheel of the present invention heating.
Fig. 9 is the main TV structure schematic diagram of ejector nozzle in the present invention.
Figure 10 is the vertical view of ejector nozzle in the present invention.
In figure, the implication of label symbol is as follows:
Concentration online monitoring system A1-intelligence concentration pot A11-body skin in A-thickner
A111-draw-in groove A112-handle stationary installation A113-internal bladder support A114-indicating meter
A12-inner bag A13-sensors A 131-upper backup pad A132-lower supporting plate
Density tester in A133-upper backup pad baffle plate A134-lower supporting plate baffle plate A2-thickner
A21-pressure unit
The differential densitometer of B-slime water automatic dosing system B1-magnetic flow meter B2-
Bucket C2-spiral pump is efficiently prepared in the heating of C-medicament dispersion system C1-bilobed wheel
Impeller on C11-Double-impeller stirrer C12-sleeve C 120-first circulation pore C13-
Impeller C15-resistance heating coil C16-viscosity detection probe C3-medicament buffer barrel C30-liquid level sensor II C4-electric gate valve under C130-second circulation pore C14-
C5-constant current medicament under meter C6-ejector nozzle C60-guide vane C7-line mixer
C8-diaphragm metering pump C9-variable medicament under meter
C10-rod impeller stirs buffer barrel C100-liquid level sensor I C101-many rods impeller agitator D-thickner
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 described.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1. the present invention is applied in black water degree of depth clarification system
As shown in Fig. 1 ~ 5, a kind of black water degree of depth clarification system, comprises thickner D, also comprises following integral part:
1. concentration online monitoring system A in thickner, this system comprises concentration on-line checkingi part in correction portion and thickner, and correction portion corrects the data of concentration on-line checkingi part in thickner;
2. automatic adding flocculant system, automatic adding flocculant turnkey of the present invention is drawn together:
Slime water automatic dosing system B, this automatic medicament feeding system comprises successively along the black water pan feeding detecting unit, policer operation unit, the medicament adding device that connect; In described thickner, the data signal output of concentration on-line checkingi part, black water pan feeding detecting unit is all connected with policer operation unit, and the command end of policer operation unit is connected with medicament adding device;
Medicament dispersion system C, bucket C1 is efficiently prepared in the bilobed wheel heating that this system comprises and is communicated with medicament adding device, receive medicament, the rod impeller of depot preparation stirs bottom buffer barrel C10 and is provided with two discharge ports, one of them whereabouts spiral pump C2 and medicament buffer barrel C3, electric gate valve C4, constant current medicament under meter C5, multiple ejector nozzle C6 form constant dosing passage, and another whereabouts diaphragm metering pump C8 and variable medicament under meter C9, ejector nozzle C6 form variable dosing passage; The medicament of constant dosing passage and variable dosing passage all imports in black water feeding pipe, and ejector nozzle C6 towards all consistent with pan feeding direction in black water feeding pipe;
The Controlling System be made up of PLC, in thickner, concentration online monitoring system, slime water automatic dosing system, medicament dispersion system are all electrically connected with Controlling System.
Wherein, described correction portion is set to and samples material in thickner and the intelligent concentration pot A1 of rapid detection concentration; In described thickner, concentration on-line checkingi part is set to density tester A2 in thickner.
As shown in Figure 6, described intelligent concentration pot A1 comprises cubic type body skin A11 and is arranged in shell as the tubular inner bag A12 collecting black water; Described body skin A11 epimere is provided with draw-in groove A111, stage casing is provided with handle stationary installation A112 and internal bladder support A113, draw-in groove A111 and internal bladder support A113 is all for fixing inner bag A12, hypomere is installed with indicating meter A114, sensors A 13 is also installed with bottom the seal cavity that body skin A11 and inner bag A12 surrounds, the upper and lower both sides of sensors A 13 are respectively equipped with upper and lower back up pad A131, A132, and the left and right sides of upper and lower back up pad A131, A132 is respectively equipped with upper and lower back up pad baffle plate A133, A134; Described sensors A 13 is connected with indicating meter A114, and lower sensor A13 is converted to slime water flow by gathering the weight signal come and is presented on indicating meter A114 in working order;
As shown in Figure 7, in described thickner, density tester A2 is set to and multiple pressure unit A21 is vertically uniformly distributed the test set be fixed in sealed vessel; The voltage output signal of pressure unit A21 adopts data collecting card collection.The data that in thickner, density tester A2 gathers gained to draw in thickner concentration or density isopleth and cloud atlas by software for calculation, for chemical feeding quantity, pan feeding feeds and underflow discharge provides technical director, concrete, software for calculation is to the treatment scheme of data as shown in Figure 4.The voltage output signal of pressure unit A21 adopts data collecting card collection.
Wherein, pressure unit A21 adopts diffusion silicon type pressure unit; Data collecting card adopts MPS-010602 Multifunctional USB data acquisition card.
As shown in Figure 1,5, described black water pan feeding detecting unit is set to magnetic flow meter B1 and differential densitometer B2, be respectively used to the mineral slurry flux and the pulp density that detect thickner feeding pipe, the touch-screen that described policer operation unit comprises PLC and is electrically connected with PLC, described medicament adding device comprises volume pump.
As shown in Figure 8, described bilobed wheel heating is efficiently prepared bucket C1 and is comprised the Double-impeller stirrer C11 being fixed on upper end, staving axis, and the periphery of Double-impeller stirrer C11 is installed with sleeve C 12, and the axis of sleeve C 12 overlaps with the axis of agitation vat; Described sleeve C 12 is provided with the first circulation pore C120, and described Double-impeller stirrer is provided with the second circulation pore C130 on upper impeller C13, and the first circulation pore C120, the second circulation pore C130 coordinate with lower impeller C14, are formed in the turbulence flow flied of agitation vat internal recycling; The inwall that bucket C1 is efficiently prepared in bilobed wheel heating is also evenly provided with multiple resistance heating coil C15.
Efficiently prepare in bucket C1 in bilobed wheel heating some viscosity detection probe C16 be installed, viscosity detection probe C16 be disposed at equal distance in bucket, detection data are transferred to policer operation unit by signal transmission unit by viscosity detection probe C16.As multiple viscosity detection probe C16 data all meet set(ting)value, illustrate prepared by flocculation medicament, namely open pan feeding pump and solution is exported to rod impeller stirring buffer barrel C10.
Rod impeller stirs in buffer barrel C10 and is provided with liquid level sensor I C100, many rods impeller agitator C101.Liquid level sensor I C100 is for detecting material liquid level in bucket; Many rods impeller agitator C101 slowly runs, and maintains the state having prepared flocculation agent.
As shown in Figure 5, liquid level sensor II C30 be electrically connected with PLC is designed with in described medicament buffer barrel C3, carry out the flow of regulating agent by the data of constant current medicament under meter C5, the correspondingly open degree of control electric gate valve C4, and then control liquid level is between setting district.
Multiple ejector nozzle C6 is towards on the identical axis being arranged on thickner feeding pipe; And the line mixer C7 of abundant confection and black water is also installed on the pipeline of the downstream part of ejector nozzle C6, thickner D feeding pipe.
As shown in Fig. 9,10, be provided with the guide vane C60 that black water formation eddy flow in thickner feeding pipe is closed in an assembly in described ejector nozzle C6, guide vane C60 is set to 4.
Described line mixer C7 is set to the many groups liquid mixing unit installed in the duct, and each mixed cell is made up of by predetermined angular intersection multiple stator blades.
Described bilobed wheel generates heat to efficiently preparing in bucket C1 and controls the temperature of liquid medicine at 40 to 50 DEG C by resistance heating coil C15.
Embodiment 2. the present invention is applied in the treatment process in black water degree of depth clarification system
This treatment process specifically comprises following operation:
Material bed change in thickner D is detected in real time by density tester A2 in thickner in concentration online monitoring system A in S1, thickner, data acquisition, concentration or density isopleth and cloud atlas is drawn in thickner D by software for calculation, CONCENTRATION STATE in display thickner D, give the alarm when concentration transfinites, and then adjustment thickner chemical feeding quantity; Meanwhile, by after thickner intelligence concentration pot A1 sampling monitoring in this on-line monitoring process, regular maintenance and Data correction are carried out to concentration on-line detecting system A in thickner, as shown in Figure 1, 2 concrete;
S2, as shown in Figure 1,3, after concentration in thickner D is sent to slime water automatic dosing system B in real time, first black water pan feeding detecting unit detects mineral slurry flux and the pulp density of thickner D feeding pipe by magnetic flow meter B1 and differential densitometer B2, data signal transmission is to PLC, flow is multiplied with concentration and calculates total dry coal slurry amount, and various data all show on the touchscreen; By dispatcher according to display data setup control parameter on the touchscreen, then calculate best additive amount of medicament by PLC according to the data signal of setup parameter and collection; The continuous data message fed back according to on-line monitoring system A in actual slime water flow and flow and thickner simultaneously, calculates chemical feeding quantity, adjusts in real time additive amount of medicament by controlling volume pump; For specific coal separating plant, black water character is limited at for some time undulating quantity, and medicament interpolation completes primarily of constant dosing passage; The difference calculating additive amount of medicament and constant chemical feeding quantity is completed by variable medicament channel, is conducive to additive amount of medicament and puts in place rapidly, eliminates the hysteresis quality that medicament adds; The pipeline of variable dosing passage is also provided with under meter, and for detecting the work output of diaphragm metering pump, detected value and the variable of volume pump own contrast, and realize the feedback of data and the monitoring of volume pump working order;
Wherein, slime water automatic dosing system B is provided with fully automatic mode and semiautomatic-mode: under fully automatic mode, and PLC calculates flocculation agent and the flocculation agent of required interpolation automatically according to data such as the slime water flow detected, flows, and adds; Under manual mode, post driver to the data be shown on touch-screen, manually arranges the addition of flocculation agent and flocculation agent according to system acquisition, and PLC calculates the addition of medicament according to given controling parameters;
Then, post driver exports control signal again and drives volume pump and electrically operated valve to carry out Automatic Dosing; The continuous data message fed back according to concentration online monitoring system A in actual slime water flow and flow and thickner simultaneously, calculates chemical feeding quantity, regulates in real time additive amount of medicament by controlling volume pump; And PLC is reserved with communication interface, system data can be transferred to dispatching office, monitor;
S3, as shown in Fig. 5,7, after setting additive amount of medicament, the bilobed wheel heating that medicament adds medicament dispersion system C to is efficiently prepared in bucket C1, form circulation turbulence flow flied, at 40 to 50 DEG C, medicament rapid stirring dissolves, as multiple viscosity detection probe C16 data all meet set(ting)value, namely open pan feeding pump and solution pump is delivered to rod impeller stirring buffer barrel C10, rod impeller stirs in buffer barrel C10 and is provided with liquid level sensor I C100, many rods impeller agitator C101.Liquid level sensor I C100, for detecting material liquid level in bucket, detects data according to material liquid level in medicament buffer barrel, the pharmaceutical quantities of calculation consumption; Many rods impeller agitator C101 slowly runs, and maintains the state having prepared flocculation agent;
Liquid medicine after dissolving exports many rods impeller to and stirs buffer barrel C10, this bottom of the barrel two discharge ports, one of them discharge port solution removes constant dosing passage, constant dosing passage is designed with liquid level sensor II C30 in medicament buffer barrel C3, liquid level is made to be between setting district, for stable, the constant of medicament in constant dosing passage flow into and give security, wherein, constant medicament under meter C5 provides Data support for the adjustment of electric gate valve C4, then carrys out the constant rate of regulating agent through the open degree of electric gate valve; Another discharge port solution removes variable dosing passage, and the medicament of two dosing passages all sprays through ejector nozzle C6; Because ejector nozzle C6 is installed on the axis of thickner D feeding pipe, and towards all consistent with pan feeding direction in black water feeding pipe, ensure that the jet in the finite space, thus with the black water flowed into from thickner D feeding pipe through line mixer C7 is full and uniform mix after, final flow into thickner D.
Claims (10)
1. the system of the automatic adding flocculant for black water sedimentation, comprises thickner (D), characterized by further comprising following integral part:
Slime water automatic dosing system (B), this automatic medicament feeding system comprises successively along the black water pan feeding detecting unit, policer operation unit, the medicament adding device that connect; The data signal output of described black water pan feeding detecting unit is all connected with policer operation unit, and the instruction output end of policer operation unit is connected with medicament adding device;
Medicament dispersion system (C), this system comprises and is communicated with medicament adding device, bucket (C1) is efficiently prepared in the bilobed wheel heating receiving medicament, the rod impeller of depot preparation stirs buffer barrel (C10), two discharge ports are provided with bottom this agitation vat, one of them whereabouts spiral pump (C2) and medicament buffer barrel (C3), electric gate valve (C4), constant current medicament under meter (C5), multiple ejector nozzle (C6) forms constant dosing passage along connecting successively, another whereabouts diaphragm metering pump (C8) and variable medicament under meter (C9), ejector nozzle (C6) forms variable dosing passage along connecting successively, the medicament of constant dosing passage and variable dosing passage all imports in black water feeding pipe, and ejector nozzle (C6) towards all consistent with pan feeding direction in black water feeding pipe,
The Controlling System be made up of PLC, slime water automatic dosing system (B), medicament dispersion system (C) are all electrically connected with Controlling System.
2. a kind of system of the automatic adding flocculant for black water sedimentation according to claim 1, it is characterized in that: described black water pan feeding detecting unit is set to magnetic flow meter (B1) and differential densitometer (B2), is respectively used to the mineral slurry flux and the pulp density that detect thickner feeding pipe; The touch-screen that described policer operation unit comprises PLC and is electrically connected with PLC; Described medicament adding device comprises volume pump.
3. a kind of system of the automatic adding flocculant for black water sedimentation according to claim 2, it is characterized in that: described bilobed wheel heating is efficiently prepared bucket (C1) and comprised the Double-impeller stirrer (C11) being fixed on upper end, staving axis, the periphery of Double-impeller stirrer (C11) is installed with sleeve (C12), and the axis of sleeve (C12) overlaps with the axis of agitation vat; Described sleeve (C12) is provided with the first circulation pore (C120), described Double-impeller stirrer is provided with the second circulation pore (C130) on upper impeller (C13), first circulation pore (C120), the second circulation pore (C130) coordinate with lower impeller (C14), are formed in the turbulence flow flied of agitation vat internal recycling.
4. a kind of system of the automatic adding flocculant for black water sedimentation according to claim 3, is characterized in that: the inwall efficiently preparing bucket (C1) that generates heat at bilobed wheel is also evenly provided with multiple resistance heating coil (C15); Efficiently prepare in bucket (C1) in bilobed wheel heating and be also provided with multiple viscosity detection probe (C16) be distributed in bucket, described viscosity detection probe (C16) is electrically connected with policer operation unit.
5. a kind of system of the automatic adding flocculant for black water sedimentation according to claim 4, it is characterized in that: described bilobed wheel generates heat to efficiently preparing in bucket (C1) and controls the temperature of liquid medicine at 40 to 50 DEG C, to reduce liquid medicine preparation time by resistance heating coil (C15).
6. a kind of system of the automatic adding flocculant for black water sedimentation according to claim 4, it is characterized in that: described rod impeller stirs in buffer barrel (C10) and is provided with liquid level sensor I (C100), many rods impeller agitator (C101), and liquid level sensor I (C100) is electrically connected with PLC.
7. a kind of system of the automatic adding flocculant for black water sedimentation according to claim 6, it is characterized in that: in described medicament buffer barrel (C3), be designed with the liquid level sensor II (C30) be electrically connected with PLC, carried out the flow of regulating agent by the data of constant current medicament under meter (C5), the open degree that correspondingly controls electric gate valve (C4), and then control liquid level and be between setting district.
8. a kind of system of the automatic adding flocculant for black water sedimentation according to claim 7, is characterized in that: multiple ejector nozzle (C6) is towards on the identical axis being arranged on thickner feeding pipe; And the line mixer (C7) of abundant confection and black water is also installed on the pipeline of the downstream part of ejector nozzle (C6), thickner feeding pipe.
9. a kind of system of the automatic adding flocculant for black water sedimentation according to claim 8, is characterized in that: be provided with the guide vane (C60) that black water formation eddy flow in thickner feeding pipe is closed in an assembly in described ejector nozzle (C6).
10., as claimed in claim 8 for the addition means that the automatic adding flocculant of black water sedimentation is united, it is characterized in that specifically comprising the following steps:
In S1, slime water automatic dosing system (B), first black water pan feeding detecting unit detects mineral slurry flux and the pulp density of thickner (D) feeding pipe by magnetic flow meter (B1) and differential densitometer (B2), data signal transmission is to PLC, flow is multiplied with concentration and calculates total dry coal slurry amount, and various data all show on the touchscreen;
By dispatcher according to display data setup control parameter on the touchscreen, then calculate additive amount of medicament by PLC according to the data signal of setup parameter and collection;
S2, set additive amount of medicament after, the bilobed wheel heating that medicament adds medicament dispersion system C to is efficiently prepared in bucket C1, form circulation turbulence flow flied, at 40 to 50 DEG C, medicament rapid stirring dissolves, as multiple viscosity detection probe (C16) data all meet set(ting)value, namely open pan feeding pump and solution is exported to rod impeller stirring buffer barrel (C10), liquid level sensor I (C100) detects material liquid level in bucket, until liquid level meets the requirements; Many rods impeller agitator (C101) slowly runs, and maintains the state having prepared flocculation agent;
Bottom S3, medicament buffer barrel, the pump of two discharge ports is opened, one of them discharge port solution removes constant dosing passage, open degree through electric gate valve (C4) carrys out the flow of regulating agent, another discharge port solution removes variable dosing passage, the medicament of two dosing passages all through ejector nozzle (C6) ejection, more finally flows into thickner (D) with the black water flowed into from thickner (D) feeding pipe after line mixer (C7) fully mixes.
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| CN109650604A (en) * | 2019-02-21 | 2019-04-19 | 安徽新园矿山设备制造有限责任公司 | A kind of automation control coal washing waste water processing unit |
| 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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