CN202538432U - 'Three in one' alternating electric field accelerated slime water settling tank - Google Patents
'Three in one' alternating electric field accelerated slime water settling tank Download PDFInfo
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- CN202538432U CN202538432U CN2012201692364U CN201220169236U CN202538432U CN 202538432 U CN202538432 U CN 202538432U CN 2012201692364 U CN2012201692364 U CN 2012201692364U CN 201220169236 U CN201220169236 U CN 201220169236U CN 202538432 U CN202538432 U CN 202538432U
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- electric field
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- black water
- alternating electric
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Abstract
The utility model provides a 'three in one' alternating electric field accelerated slime water settling device. The main structure of the device comprises a buffer section, a settling section, a separation section, a slime water condensation and clear water turbidity detection system, a medicament adding system, a control system and the like. The device has a compact structure, can reduce control hysteresis, is easily automized, and is safe, stable, reliable and convenient for operation. The principle of the settling device is that: in the action of an alternating electric field, the hydrated shell on the surface of slime particles in slime water is perhaps destroyed, slime particles are agglomerated and settled because hydration repulsion among the slime particles is changed into hydrophobic attraction; and charging particles in the slime water can be accelerated to settle in the action of the alternating electric field, so that the high-pelitization slime water has good settling effect, high efficiency and environmental friendliness, and the cost for medicaments can be reduced. The 'three in one' alternating electric field accelerated slime water settling tank is perfect slime treatment equipment in industrial application.
Description
[technical field]
The present invention is a kind of equipment that is used for coal preparation plant's black water sedimentation clarification, is particularly useful for being difficult under the existing regime of agent black water of sedimentation clarifying treatment, also is applicable to the industrial wastewater that the particle hydration is stronger.
[background technology]
In recent years, because the raising of coal mining mechanization level, spoil content increases in the raw coal, and raw coal produces the high argillization black water that is difficult to the sedimentation clarifying treatment in a large number in washing process.The reason that causes particle in the black water to be difficult to the sedimentation clarification have following some: 1, the coal slime particle surface has negative electricity, in water, forms Coulomb repulsion, causes particle to be difficult to assemble and forms bulky grain; 2, hydrone receives polarization at the coal slime particle surface, makes particle surface form hydration shell, and the existence owing to aquation repulsion and space steric effect between particle causes particle to be difficult to assemble sedimentation; 3, subparticle content is big in the black water, is the colloidal state stable dispersion in black water, has significantly weakened the gravitational settling effect, black water sedimentation clarification difficulty.These thin mud circulate in the washing loop and add up, and cause primary water concentration, viscosity to raise.
At present, the black water treatment technology mainly is through adding the electrostatic repulsion that inorganic salts are master's flocculating agent weakening particle surface, adding high polymer coagulant particle is coupled together.There is following shortcoming in this traditional method: 1, do not consider the hydration of particle surface, effect of settling inadequately fully thoroughly.2, reagent consumption is bigger, and cost is higher.3, sinking speed is slow, and the settling area that needs is bigger, so need bigger more deposition concentration basin, makes equipment huge, and the production hysteresis is bigger.
The component that is difficult to sedimentation in the black water mainly is the microfine clay mineral that the spoil argillization in the coal seam produces.The reagent consumption of clarifying this black water is big, and the recirculated water solids content after the clarification is big.Traditional medicament method is mainly considered to promote " bridge formation " net of particle aggregation and flocculant effect of catching to handle black water through the electrostatic repulsion that weakens particle surface.In order to weaken the hydration of particle surface; Make particle more directly to contact, sedimentation takes place to assemble, we have invented a kind of " three-in-one " alternating electric field and have quickened the black water subsider; This equipment applies alternating electric field to black water; Under the effect of alternating electric field, make the hydrone generation disturbance of particle surface to weaken the effect of hydration shell.Use this equipment to reach to reduce reagent consumption, reduce purposes such as production equipment size, have better economic property and applicability.Owing to can reduce the use of macromolecule medicament, also bring facility to cargo handling operations such as coal slime dehydrations.
[summary of the invention]
Exist above-mentioned deficiency in view of existing black water treatment technology, we study invented a kind ofly can reduce reagent consumption, reduce settling area, reduce produce pollute, a kind of preferably black water treatment facility of treatment effect.
The utility model solves the technical scheme that its technology contents adopted: primary structure by: breeze way, settling section, segregation section are formed " three-in-one " cell body (1); Cell body is the cuboid of the sharp end that cube and inverted triangle body combine; High back is low before the bottom surface, and breeze way is provided with black water inlet (2), buffering web plate (3), cushioning fender (4) from front to back successively.Settling section such as figure are provided with scraper plate fixed mount (5), scraper plate steel-wire track (6), vertical mesh electrode (7), scraper plate (8), horizontal mesh electrode (9), and electrode assembly wherein all is surrounded by the sealed insulation layer.Segregation section top is provided with downflow weir (10), and the bottom is provided with underflow opening (11).
Described black water pan feeding concentration is by concentration tester (12) test, and the overflow water turbidity is by turbidity tester (19) test, and underflow density is by underflow density tester (20) test, and medicament is added by medicament add-on system (13).
Described Based Intelligent Control cabinet (18) is by LCD (14), electric field controls system (15), and medicament adds control system (16) scraper plate operation control system (17) and forms.
The actual conditions research and development that the utility model is handled according to coal preparation plant's black water.Present high argillization black water occurs in numerous coal preparation plants; The existence of mineral grain surface hydration film in the black water has hindered the sedimentation of coal slime agglomeration of particles, and this equipment is mainly in order to weaken or to destroy coal slime particle surface hydration shell and design; Thereby quicken the sedimentation of black water, have tangible advance.The top of " three-in-one " cell body is cuboid, and the bottom of passing through mutually is a triangle body, for the low design in preceding high back, adopts concrete or other materials to process.Be the effectively sedimentation of black water in guaranteeing to flow, black water gets into the cell body breeze way from the black water inlet, to the buffering peptizaiton of jet, makes that the black water of inflow settling section is slow laminar flow through web plate and dividing plate.When black water flowed at electrode district, the alternating electric field that electrode produces can reduce the thickness of black water surface hydration film, thereby makes the coal slime particle assemble sedimentation easily.Electrode is the reticular lamina electrode, and sandwich layer is that graphite rod or other materials are processed, and is sealed and coated with insulating materials.And with the good material of other insulating property (properties)s as support.In order to reach better concentrated effect, be provided with horizontal mesh electrode at black water sedimentation end, electrode is arranged closely, and to build more complicated electric field patterns and higher electric-field intensity, the coal slime particle can settle down between mesh.Under the multiple action of electric field, medicament and gravity, black water is from upstream to the downstream gradient sedimentation, and underflow is scraped into underflow opening by scraper plate and got rid of by pump.The clarification overflow is collected through downflow weir and is used as recirculated water.Black water pan feeding concentration and overflow water turbidity are measured through tester, and these data will be transferred to intelligent centralized control system.At first according to the recirculated water standard, according to overflow water turbidity adjustment electric field patterns and electric-field intensity.If can't meet the demands for the time being, be FEEDFORWARD CONTROL then with pan feeding concentration, the overflow turbidity is a FEEDBACK CONTROL, is the basis with the model of black water concentration and medicament, draws the amount of adding medicament.The concentration of underflow is transferred to intelligence control system through Instrument measuring, is used for confirming the gait of march of scraper plate.Parameters such as black water concentration, overflow water turbidity, underflow density, electric field patterns and intensity, additive amount of medicament and the scraper plate speed of service will show through LCD in real time.This compact equipment is reasonable, compares with existing equipment, and this occupation area of equipment is little; And, can effectively reduce the black water processing cost through reducing reagent consumption, through the hydration shell thickness of attenuate coal slime particle; Can more directly effectively improve recirculated water clarity, environmentally friendly.Be and desirable industrial black water precipitation apparatus.
[description of drawings]
Fig. 1 is that a kind of " three-in-one " alternating electric field quickens black water subsider structural front view;
Fig. 2 is that a kind of " three-in-one " alternating electric field quickens black water subsider structure right view.
Shown in the figure, list of numerals is following:
1, cell body, 2, black water inlet, 3, the buffering web plate, 4, cushioning fender; 5, scraper plate fixed mount, 6, the scraper plate steel-wire track, 7, vertical mesh electrode, 8, scraper plate; 9, horizontal mesh electrode, 10, downflow weir, 11, underflow opening, 12, black water pan feeding concentration tester; 13, medicament add-on system, 14, LCD, 15, the electric field controls system, 16, medicament adds the control system; 17, scraper plate operation control system, 18, switch board, 19, overflow water turbidity tester, 20, the underflow density tester.
[specific embodiment]
Below in conjunction with accompanying drawing the utility model is described further: shown in Figure 1 is device overall structure front view.Black water gets into cell body from feeding pipe 2, and cell body is a point end rectangular structure, processes with concrete or other materials.The high speed black water that gets into cell body forms laminar flow in settling section under the buffering peptizaiton of web plate 3 and dividing plate 4, web plate and dividing plate can adopt alloy material to process.At settling section start-up portion vertical mesh electrode 7 that distributes, adopt horizontal mesh electrode 9 at the sedimentation latter end, the sedimentation in mesh of latter end black water.Conductive materials such as electrodes use graphite rod or metal bar are processed, and coat the sealed insulation layer outward.Sedimentation mud adopts scraper plate 8 to scrape and prevents to stop up and the control underflow density.
Pan feeding concentration is measured through densimeter 12, and the overflow turbidity is measured through nephelometer 19, and the data that obtain are transferred to intelligence control system respectively.At first compare, confirm required voltage of electric field,, then calculate required interpolation coagulated agent amount automatically if be difficult to reach production requirement with alternating electric field separately according to overflow turbidity and standard cycle water, and through the 13 completion dosings of medicament add-on system.For preventing to form electrodispersion, field intensity is generally less than 0.8-2.0kV/cm.Underflow density is measured through densimeter 20, and these data are imported the control system-computed into and gone out the gait of march of scraper plate and control its operation.Intelligence control system is mainly by display 14, and voltage of electric field is controlled system 15, and medicament adds control system 16, and scraper plate operation control system 17 is formed.Various data lines of control system and control internal system connecting line will connect correctly, and safety action is coordinated.
Shown in Figure 2 is device overall structure right view.Discharge from underflow opening 11 usefulness pumps from the underflow that scraper plate scrapes, overflow is collected from downflow weir 10 and is used as recirculated water.From this figure can obviously see the sedimentation cell body rectangular structure of the sharp end and and underflow opening between arrangement relation.
Claims (3)
1. " three-in-one " alternating electric field quickens the black water subsider, it is characterized in that: primary structure by: breeze way, settling section, segregation section, black water concentration and primary water turbidity detection system, medicament add-on system, control components of system as directed are formed; Breeze way, settling section, segregation section are formed " three-in-one " cell body (1); Cell body is the cuboid of the sharp end that combines of cube and inverted triangle body; High back is low before the bottom surface, and breeze way is provided with black water inlet (2), buffering web plate (3), cushioning fender (4) from front to back successively.Settling section such as figure are provided with scraper plate fixed mount (5), scraper plate steel-wire track (6), vertical mesh electrode (7), scraper plate (8), horizontal mesh electrode (9), and electrode assembly wherein all is surrounded by the sealed insulation layer.Segregation section top is provided with downflow weir (10), and the bottom is provided with underflow opening (11).
2. a kind of " three-in-one " according to claim 1 alternating electric field quickens the black water subsider; It is characterized in that: black water pan feeding concentration is tested by concentration tester (12); The overflow water turbidity is tested by turbidity tester (19); Underflow density is by underflow density tester (20) test, and medicament is added by medicament add-on system (13).
3. a kind of " three-in-one " according to claim 1 alternating electric field quickens the black water subsider; It is characterized in that: the control system is made up of switch board (18); Switch board (18) is by LCD (14); Electric field controls system (15), medicament adds control system (16) scraper plate operation control system (17) and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201692364U CN202538432U (en) | 2012-04-12 | 2012-04-12 | 'Three in one' alternating electric field accelerated slime water settling tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201692364U CN202538432U (en) | 2012-04-12 | 2012-04-12 | 'Three in one' alternating electric field accelerated slime water settling tank |
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| CN202538432U true CN202538432U (en) | 2012-11-21 |
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| CN2012201692364U Expired - Fee Related CN202538432U (en) | 2012-04-12 | 2012-04-12 | 'Three in one' alternating electric field accelerated slime water settling tank |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105727600A (en) * | 2016-02-29 | 2016-07-06 | 上海大学 | On-site desilting system and silt separation method for high-silt source water |
| CN111252871A (en) * | 2020-02-28 | 2020-06-09 | 广东工业大学 | Device for removing colloid impurities under action of static field force coupled with multistage partition plates and water power |
| CN114307264A (en) * | 2021-12-17 | 2022-04-12 | 中国矿业大学 | Device and method for rapidly detecting height of clarified water layer of slime water thickener |
-
2012
- 2012-04-12 CN CN2012201692364U patent/CN202538432U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105727600A (en) * | 2016-02-29 | 2016-07-06 | 上海大学 | On-site desilting system and silt separation method for high-silt source water |
| CN111252871A (en) * | 2020-02-28 | 2020-06-09 | 广东工业大学 | Device for removing colloid impurities under action of static field force coupled with multistage partition plates and water power |
| CN111252871B (en) * | 2020-02-28 | 2022-06-03 | 广东工业大学 | Device for removing colloid impurities under action of static field force coupled with multistage partition plates and water power |
| CN114307264A (en) * | 2021-12-17 | 2022-04-12 | 中国矿业大学 | Device and method for rapidly detecting height of clarified water layer of slime water thickener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Huainan Haihong Electromechanical Equipment Plant Assignor: Anhui University Of Science And Technology Contract record no.: 2012340000349 Denomination of utility model: 'Three in one' alternating electric field accelerated slime water settling tank Granted publication date: 20121121 License type: Exclusive License Record date: 20121210 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20140412 |