CN1238114C - Cyclone-type electric dust collector - Google Patents
Cyclone-type electric dust collector Download PDFInfo
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- CN1238114C CN1238114C CN 99101698 CN99101698A CN1238114C CN 1238114 C CN1238114 C CN 1238114C CN 99101698 CN99101698 CN 99101698 CN 99101698 A CN99101698 A CN 99101698A CN 1238114 C CN1238114 C CN 1238114C
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- electric field
- dust
- circular arc
- pole plate
- cyclone
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Abstract
The present invention relates to a cyclone type electric dust collector which is a dust-removing device integrating centrifugal inertia, electric field charges and electric field filtration for dust collection. The present invention is mainly characterized in that a rotor is driven to rotate by a motor, and dusty gas entering the electric dust collector is led and forced to rotate and move. The rotor is provided with vanes and electrodes. A dense electric field net is formed when the rotor rotates at a high speed; the outer side of the rotor is provided with different electrodes according to different principles to form different interacting electric fields. Dust is collected under the action of centrifugal force and electric field force in the dense electric field net along with the rotation and the motion of gas.
Description
One, technical field
Cyclone-type electric dust collector is that a kind of industry and civilian ventilation field of being widely used in is to the dust collection device of dusty gas dust collection air cleaning.
Two, background technology
According to the character of dust, at present to the collection of dust mainly based on gravity, centrifugal force dust-collecting mechanism; Filter dust-collecting mechanism; Electric power dust-collecting mechanism etc.
Dust-precipitator based on gravity, the design of centrifugal force dust-collecting mechanism mainly contains gravity settling chamber and cyclone type dust-precipitator, but it is not suitable for the fine dust of collection, and dust-collecting efficiency is low, can not satisfy the requirement of ventilating and gathering dust.
Based on the bag filter and the stratum granulosum dust-precipitator of filtration mechanism design, because the restriction of filtration velocity, equipment is huge, and floor space is big, is not suitable for to collect caking property or the strong dust of adsorptivity, and deashing is frequent, difficult.Bagroom also is not suitable for the big dusty gas of temperature high humility, and cloth bag is easily mashed, and service life is short, and it is big to change workload.Wet dust collector is owing to the influence of liquid body (as sewage), and to the requirement for anticorrosion strictness of equipment, water consumption is big, and dust reclaims difficulty, easily causes secondary pollution, is not suitable for and collects hydrophobicity or hydraulicity dust, and be subjected to the influence of freezed in winter.
At present according to the cottrell of electric power dust-collecting mechanism design, be in order to control wind speed in the electric field equally, equipment is huge, and floor space is big, and the steel consumption amount is many, and once investment is big, and the fabrication and installation maintenance of equipment all compare difficult.Dust specific resistance is required strict, heat insulation effect does not occur with great difficulty that dewfall, dust bonding electric field, vibration dust-cleaning are thorough etc. to be caused creepage or reduce discharge capability, reduces dust-collecting efficiency.
Three, summary of the invention
Cyclone-type electric dust collector be a kind ofly integrate that centrifugal inertia gathers dust, dust collection device that electric-field charge and filtration are gathered dust, it has taken into account the advantage of above each dust-precipitator, make every effort to overcome their shortcoming again, especially the intensive electric field net that has adopted rotation at a high speed to form makes dust further obtain charged and filters and be collected.Based on these mechanism, compare with original old-fashioned cottrell, be a kind of entirely new kind cottrell.
(1) structure
Its structure of cyclone-type electric dust collector can be divided into housing parts, running part, electric field part support section and relevant specific function device on the whole and form.
Housing parts comprises: 1, air inlet; 5, loam cake, 6, straight tube, 10, awl bucket, 13, dust-exhausting port; 17, air outlet.
Running part comprises: 3, actuating unit; 12, lower shaft bearing; 16, upper axis bearing.
Electric field partly comprises: 7, cylindrical shape stationary electric field; 8, S back of a bow shape is moved electric field; 9, circular arc is rotated electric field.
Support section is mainly: 11, supporting steel frame
The specific function device comprises: 2, high frequency atomizing humidification increases the additive device; 4, high voltage source inlet wire; 14, lubrication oil circulation, filtration and cooling device; 15, circular arc is rotated electric field power supply wiring friction ring; 18, explosion-proof and access door.
(2) operation principle
Drive circular arc by actuating unit (3) and rotate electric field (9) rotation, the fan blade of being located on the circular arc rotation electric field (5-4) guides and forces the dusty gas that enters in the cyclone-type electric dust collector from air inlet (1) to rotate.The dusty gas rotary course is owing to be subjected to action of centrifugal force, and the more coarse grained dust of part arrives the cylindrical shape stationary electric field (7) of cylindrical shell (6) medial surface and the separated and collected that takes the lead in, and other has part to be collected under electric field action.Because what this cyclone-type electric dust collector adopted is negative-pressure operation, at the external exhaust blower of air outlet (17), the interior circular arc rotation of cyclone-type electric dust collector electric field (9) pressure inside is low and formation negative pressure than outer rim, dusty gas moves to the center while rotating, there is the part dust to arrive S back of a bow shape again and moves electric field (8), under the acting in conjunction of electric field force and centrifugal force, be collected.S back of a bow shape is moved electric field and is played effect of electric field on the one hand, also strengthen the rotation and the motion of gas on the other hand, the centrifugal inertia that had both quickened dust is collected, promote the turbulent flow of gas again, quicken the diffusion of electronics and dust, increase the collision frequency and the time of electronics and dust, accelerate the charged of dust and quicken to gather dust.Circular arc is rotated electric field (9) in the high speed rotary course, guide and force the rotation of dusty gas on the one hand, form intensive electric field net by effect on the other hand with circular arc porous pole plate (5-3), the further charged filtration of dust is gathered dust, dust is collected by dust-exhausting port (13), purified gas enters the circular arc rotation interior space of electric field (9) and is discharged from, thereby reaches the purpose of ventilating and gathering dust.
(3) beneficial effect of comparing with cottrell with existing rotoclone collector
1, more effective, more direct cyclone dust collection mode.
Existing rotoclone collector is a dusty gas by tangentially the entering of air inlet and cyclone wall, the sedimentation and being collected under gravity and action of centrifugal force of the coarse grained dust of part.The gas flow in whirlwind tube cross section forms outer eddy flow and interior eddy flow, the interface is fuzzyyer between these two kinds of eddy flows, outer eddy flow wind speed is progressively reduced to the middle part by limit portion, the dust that part carefully is not collected is difficult to be collected in the process in the middle part of shifting to, bigger because of limit portion wind speed simultaneously, crude particle dust is bigger to the barrel wearing and tearing in the rapid subsidence process, and the dust that part settles down also easily causes secondary fly-up, discharges with interior rotational flow gas.Cyclone-type electric dust collector is to drive circular arc by actuating unit (3) to rotate electric field (9) rotation, guides and force the dusty gas rotation and the motion that enter in the cyclone-type electric dust collector.Its cross section maximum wind velocity rotates electric field (9) outer rim in circular arc, be minimum to the cyclone-type electric dust collector inwall successively, than crude particle dust at inwall because of the separated collection that takes the lead in of gravity and centrifugal action, part than fine dust continue with air-flow while rotating in the moving process of center, because of wind speed increases gradually, centrifugal force also progressively increases, and also is collected under centrifugal force and gravity effect at last.In the mixture in cyclone-type electric dust collector, exist powder dust particle and gas molecule, coarse granule is compared with particle dust, its centrifugal force is bigger, therefore it is separated to take the lead in, raising along with wind speed, no matter how little particle dust is, its quality is big more than the gas molecule quality, as long as reach certain wind speed, the centrifugal force of the fine dust particles also centrifugal force more than gas molecule is big, and during greater than the resistance in its running, dust just can not enter circular arc rotation electric field (9) discharge by circular arc porous pole plate (5-3) at the centrifugal force of dust granules.This dusty gas is just as a kind of aerosol, dust is a solute, gas is solvent, its solubility can not be unlimited, be that dust constantly enters with dusty gas on one side, on one side be that clean gas is constantly discharged and dust is intercepted and can not be discharged from, under this condition, dust can be collected or be subjected to sooner or later the limitation of solubility to separate out and be collected under the effect of cyclone dust collection.But too high wind speed is bigger to many-sided influences such as equipment performance and operation power consumptions, generally should not consider separately, and some are explosive, inflammable to collecting, high humidity, high-temperature dust or require relatively to be fit to consider when very high to collecting the strict collection efficiency of dust grading.Therefore, by this cyclone dust collection mode, can handle the dusty gas of low temperature or high temperature, also can be according to some heterogeneitys such as the unit weight or the different grain size classification difference separated and collected of dust, the dust-collecting efficiency height, no matter how little the dust granularity is, all might collect it get off.But take all factors into consideration from many-sides such as equipment performance and operation power consumptions, also should reduce its weakness simultaneously as far as possible, adopt the mode of better gathering dust,, formed cyclone-type electric dust collector so introduced electric field in performance cyclone dust collection advantage.
2, gather dust various informative, the dust-collecting efficiency height.
The characteristics of in cyclone-type electric dust collector, gathering dust according to cyclone dust collection and electricity, cylindrical shape stationary electric field (7) S back of a bow shape is set moves electric field (8) and circular arc rotation electric field (9), these structures not only interact but also separate, by guiding and force dusty gas rotation and the motion that enters in the cyclone-type electric dust collector, reduce the phase mutual interference again, reduce the secondary fly-up of dust.Both impelled dust under gravity and centrifugal action, to be collected, by the continuous discharge of electric field, by the electron collision dust, dust impacting electron etc. are collision mutually again, increase the mutual collision frequency and the time of electronics and dust, impel charged dust to shift to pole plate and be collected.Especially adopted circular arc to rotate electric field (9), when it rotates at a high speed and circular arc porous pole plate (5-3) effect form intensive electric field net, develop into running up discharge by electrostatic dust collection and gather dust, make dust further charged and in intensive electric field net filtration, be collected.This mode of gathering dust of quickening combination in constantly motion is rotated by electronics and dust in the time of will generating new compound as two kinds of different materials especially, is put it in the cup into, by continuous stirring, with reaction speed and the reacting finisheding degree that increases it.
3, compact conformation, volume is little, and consumptive material is few, makes, installs and uses Maintenance and Repair until changing conveniently easily.
It is to move toward a certain direction pole plate by dusty gas that existing electricity gathers dust, and the available ventilation area is little, in order better to gather dust, must control the interior wind speed of electric field in lower scope, and this just requires device structure bigger, and consumptive material is many, and fabrication and installation are difficulty relatively.Cyclone-type electric dust collector, for dust is collected under centrifugal action, celebrating guarantees big wind speed, purified gas by circular arc porous pole plate (5-3) from around flow into circular arc and rotate in the electric field (9) and be discharged from, this has effectively improved the draught area of Purge gas, and therefore, device structure just obviously dwindles, consumptive material is few, and making, installation, working service maintenance are to changing conveniently easily.
4, need not be incubated and heating apparatus,, reduce and make and operating cost, reduce and safeguard and maintenance workload, both be applicable to and handled the low temperature dusty gas, be fit to handle hot and humid dusty gas again without rapping apparatus.
The existing electricity volume ratio of gathering dust is bigger, and wind speed is low, and rapid heat dissipation is easy to generate dewfall, influences discharge capability, and especially to collecting as caking property dust such as cement, in case dewfall is condensed, electric field is with regard to intractable, thereby influences dust-collecting efficiency.In order to reduce dewfall, reduce the electric field bonding, have to adopt insulation and heating apparatus, adopt the electric field rapping apparatus, these devices have not only increased making and operating cost, to insulation and heating device, gas volume is increased, in fact also increased the ash-laden gas scale of construction of handling.Cyclone-type electric dust collector, because the high speed of gas rotation in the electric field, it is easy to the cleaning of the dust in the electric field clean, because the rotation and the motion of gas, part kinetic energy becomes heat energy, has also kept temperature in the electric field.Even when shutting down,, make dewfall bonding in the electric field because of the variation of external environment condition, along with normal boot-strap, also can in the following electric field of rotation wind action, dry up, be bonded in the dust in the electric field, by rotation wind-force and dust frictional force, clean its cleaning.Simultaneously because the electric temperature tolerance that gathers dust own, therefore, it needn't consider the temperature and humidity of dust, needn't consider the influence of electric field dewfall,, need not be incubated and heating apparatus without rapping apparatus, thereby making and operating cost have also been reduced, reduce and safeguard and maintenance workload, both be applicable to and handled the low temperature dusty gas, be suitable for again and handle hot and humid dusty gas.
5, strong to dust specific resistance adaptability, or, effectively change dust specific resistance by fairly simple device.
Existing electricity gathers dust dust specific resistance is had relatively high expectations, and consequently handling not on year-on-year basis, its dust-collecting efficiency of resistance dust just has bigger change.Cyclone-type electric dust collector, because of its compact conformation, volume is little, and internal gas flows fast, and it is various informative to gather dust simultaneously, can stress the different modes of gathering dust to different dust, and therefore to the dust of resistance on year-on-year basis not, its dust-collecting efficiency changes and is not obvious.To the part than the unconformable especially dust of resistance, also be easy to increase additive device (2) from air inlet by high frequency atomizing humidification, by to the dusty gas humidification or increase the method for conducting medium, change the ratio resistance of dust, thereby also widened cyclone-type electric dust collector the adaptability of resistance dust on year-on-year basis not.
6, because of its compact conformation, volume is little, has the cyclone dust collection effect concurrently, can directly adopt one-level to gather dust, and can install nearby, reduces process equipment and arranges, reduces dust recovery conveying equipment, reduces once investment and operating cost.
Four, description of drawings
See the 8th page " explanation of Figure of description (the 1st～7 page, Fig. 1～9) drawing "
Five, the specific embodiment
(1) equipment making
Cyclone-type electric dust collector is made, according to its structure, housing parts (1,5,6,10,13,17), and running part (3,12,16), support section (11) directly can be made by accompanying drawing 1, the corresponding enforcement of Fig. 2, Fig. 3;
Specific function device part (2,4,14,15,18).Can buy ready-made accessory assembling, also can make by accompanying drawing 1, the corresponding enforcement of Fig. 2, Fig. 3;
Electric field partly has:
Cylindrical shape stationary electric field (7) is according to accompanying drawing 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, by spiral yarn shaped discharge electrode of F2 copper wire and electric field line (6
1) and figure tubular pole plate (5-1) and some general or easy accessory compositions of tube, make by the corresponding enforcement of these accompanying drawings;
S back of a bow shape is moved electric field (8), according to accompanying drawing 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 9, by spiral yarn shaped discharge electrode of F2 copper wire and electric field line (6
1) and S back of a bow shape pole plate (5-2) and some general or simple and easy accessory compositions, make by the corresponding enforcement of these accompanying drawings;
Circular arc is rotated electric field (9), according to accompanying drawing 3, Fig. 4, Fig. 5, Fig. 6, Fig. 8, by the perverse shape discharge electrode (7 of F20 pipe R-S line awns
1) and circular arc porous pole plate (5-3), fan blade (5-4) and some general or simple and easy accessory compositions, make by the corresponding enforcement of these accompanying drawings.
In general, plant section is more easily bought, and it is fairly simple to make the process technology condition, possesses general solder technology, pincers worker technology, turner technology and equipment and gets final product.Veneer reeling machine power needn't be too big, only needs to roll out long pipe; Lathe also needn't be very accurate, complicated, and it is just passable that the energy car goes out long axle, only has relatively high expectations for these 2, can handle by external coordination, and all the other all are fairly simple operations, all can make in the workshop of general condition.
(2) install
During installation, can assemble in that equipment making producer is complete, also can be made into spare and accessory parts,, therefore very unfixing method is installed using producer's assembling according to place and the condition of construction of using producer.To guarantee the levelness and the perpendicularity of equipment on the whole, guarantee the balance and the uniformity of equipment.The influence of pay attention to rotation, vibrating and expand with heat and contract with cold, main connecting screw rod all need increase spring washer.
It is as follows that basic order is installed:
Awl bucket → rotor in bottom is in place → straight cylinder shell connections → loam cake connection → air outlet joint → adjustment fixedly metal (upper seat → interior circular arc rotation electric field → outer cylindrical stationary electric field → hunchbacked shape of middle S move electric field → other.
(3) O﹠M
The O﹠M and the conventional equipment of equipment are basic identical, and because the deashing of electric field is to clean voluntarily by rotation wind-force in the electric field, therefore seem simpler during Operation and Maintenance, emphasis guarantees firm, the sealing, lubricated that each rotatable parts connects, make regular check on the interpolation lubricant medium, upper bearing adopts lubricating grease, and lower bearing adopts the oil lubrication of heatproof, withstand voltage, insulation.To dusty gas of different nature and dust collection effect determine whether to adopt high frequency atomizing humidification to increase the additive device and adopt which kind of additive and addition what etc., reach the requirement of normal use with the operation of assurance equipment.
(4) maintenance or replacing
When maintenance or local replacing, outer the establishing respectively as routine of housing carried out,, can advance under the cone and handle lower shaft bearing part in the housing.S back of a bow shape is moved the electric field part in this way, pulls down the line that S back of a bow shape is moved electric field and cylindrical shape stationary electric field earlier, the hunchbacked shape of S is moved the electric field faulty component be transferred to the access door position and can overhaul or change; Circular arc is rotated the electric field part in this way, moves electric field location the S back of a bow shape near access door and pulls down one to two battery lead plate, and shifting circular arc rotation electric field faulty component so far, the position gets final product; Cylindrical shape stationary electric field part in this way, then the people position of standing and moving the electric field pole plate in the S back of a bow shape that is removed is rotated S back of a bow shape and is moved electric field, and the people is along with S back of a bow shape is moved the transfer of electric field and arrived the abort situation place under repair, and then returns to original position.
Whole replacing replaces promptly being easy to solve with identical model specification.
Six, standard design and series of products
According to the facility of different requirements and making, installation, use, be designed to the series of products of f400-f1000, handle air quantity at 7235-45216M
3Between/the H, per hour can reach ten thousand stere more than 40 with their combined treatment air quantity also can be more, can flexible combination according to the different requirements of handling air quantity.
Figure of description (the 1st～7 page, Fig. 1～9) drawing explanation
Fig. 1 cyclone-type electric dust collector outward appearance orthographic drawing
Fig. 2 cyclone-type electric dust collector outward appearance vertical view
Fig. 3 A-A analyses and observe and indicates that B-B analyses and observe the position
Fig. 2, Fig. 3 also are expressed as follows structure or device:
1, air inlet; 2, high frequency atomizing humidification increases the additive device; 3, actuating unit; 4, high voltage source inlet wire; 5, loam cake; 6, straight tube; 7, cylindrical shape stationary electric field; 8, S back of a bow shape is moved electric field; 9, circular arc is rotated electric field; 10, awl bucket; 11, supporting steel frame; 12, lower shaft bearing; 13, dust-exhausting port; 14, lubrication oil circulation is filtered and cooling device; 15, circular arc is rotated electric field power supply wiring friction ring; 16, upper axis bearing; 17, air outlet; 18, explosion-proof and access door.
Fig. 4 B-B analyses and observe and indicates that A-A analyses and observe position, C enlarged drawing position
Fig. 5 C amplified 10: 3 and indicated positions such as D-D analyses and observe, E, F amplification
And be expressed as follows parts:
5-1, cylindrical shape pole plate; 5-2, S back of a bow shape pole plate; 5-3, circular arc porous pole plate; 5-4, fan blade 6
1, the spiral yarn shaped discharge electrode of φ 2 copper wires and electric field line; 7
1, φ 20 pipe R-S line prickle shape discharge electrodes.
Fig. 6 D-D analyses and observe and indicates that G amplifies the position
Fig. 7 E amplifies 5: 1 Fig. 8 F and amplified 5: 1
Among Fig. 7, Fig. 8 and be expressed as follows parts:
1
1, the M8 screw rod; 2
1, the M8 nut; 3
1, M8 bullet packing ring; 4
1, copper binding clip; 5
1, φ 20 polytetrafluoroethylenes insulation hangs; 6
1, the spiral yarn shaped discharge electrode of φ 2 copper wires and electric field line; 7
1, φ 20 pipe R-S line prickle shape discharge electrodes; 8
1, φ (2.5-25) polytetrafluoroethylene insulated hollow rod; 9
1, φ (2.5-25) polytetrafluoroethylene insulated copper core electric power incoming line.
Fig. 9 G amplified 3: 1 and was expressed as follows structure or parts
9-1, electrode suppor; 9-2, rotation wheels; 9-3, sliding rail
Extension is drawn in 9-4, insulation; 5-2, S back of a bow shape pole plate
Claims (2)
1, a kind of cyclone-type electric dust collector, it gathers dust according to whirlwind inertia and electric-field charge principle, comprise that cylindrical shape stationary electric field (7), S back of a bow shape is moved electric field (8), circular arc and rotated that electric field (9), high frequency atomizing humidification increase additive loading amount (2), circular arc is rotated electric field power supply wiring friction ring (15), actuating unit (3) and straight tube (6), wherein cylindrical shape stationary electric field (7) is located at straight tube (6) inboard, by spiral yarn shaped discharge electrode of φ 2 copper wires and electric field line (6
1) with become as dust collecting pole plate by cylindrical shape pole plate (5-1), S back of a bow shape is moved electric field (8) and is located between cylindrical shape stationary electric field (7) and the circular arc rotation electric field (9), by spiral yarn shaped discharge electrode of φ 2 copper wires and electric field line (6
1) and forms as dust collecting pole plate by S back of a bow shape pole plate (5-2), circular arc is rotated electric field (9) and is located at straight tube (6) middle part, manages the perverse shape discharge electrode (7 of R-S line awns by φ 20
1) and form as dust collecting pole plate by circular arc porous pole plate (5-3), S back of a bow shape is moved the near-end close proximity of the near-end distance of electric field (8) discharge electrode and cylindrical shape pole plate (5-1) and S back of a bow shape pole plate (5-2) and circular arc rotation electric field (9) discharge electrode.
2, according to the described cyclone-type electric dust collector of claim 1, its circular arc is rotated and on electric field (9) fan blade (5-4) is set and links with actuating unit (3), circular arc is set rotates electric field power supply wiring friction ring (15) and links to each other with external high-voltage DC power supply, drive by actuating unit (3), impel circular arc to rotate electric field (9) rotation and discharge and around it, form intensive electric field net in rotation at a high speed, also rotate electric field (9) simultaneously and go up the fan blade (5-4) that is provided with, guide and force the dusty gas that enters in the cyclone-type electric dust collector to make high speed rotary motion by circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99101698 CN1238114C (en) | 1999-03-16 | 1999-03-16 | Cyclone-type electric dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99101698 CN1238114C (en) | 1999-03-16 | 1999-03-16 | Cyclone-type electric dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1266744A CN1266744A (en) | 2000-09-20 |
| CN1238114C true CN1238114C (en) | 2006-01-25 |
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ID=5270619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99101698 Expired - Fee Related CN1238114C (en) | 1999-03-16 | 1999-03-16 | Cyclone-type electric dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1238114C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101973242B1 (en) * | 2016-11-21 | 2019-04-29 | 한국기계연구원 | Apparatus for airborne particle collection |
| CN107029884A (en) * | 2017-04-08 | 2017-08-11 | 安徽盛运重工机械有限责任公司 | A kind of new drum type brake electric cleaner |
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1999
- 1999-03-16 CN CN 99101698 patent/CN1238114C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1266744A (en) | 2000-09-20 |
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