CN205307995U

CN205307995U - Centrifugal dust remover

Info

Publication number: CN205307995U
Application number: CN201620003430.3U
Authority: CN
Inventors: 金安桐; 金凤
Original assignee: ANQING TONGBO TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: ANQING TONGBO TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2016-01-05
Filing date: 2016-01-05
Publication date: 2016-06-15
Anticipated expiration: 2026-01-05

Abstract

The utility model discloses a centrifugal dust remover. The centrifugal fan impeller with draw the coaxial setting of fan wheel and set up in the both sides of baffle respectively and all seal in the housing, the motor output shaft drives the centrifugal fan impeller and draws that fan wheel is synchronous to rotate, the annular powder collector of fixing on the housing encloses in the periphery of centrifugal fan impeller and the distance of setting for with the impeller marginating compartment, and annular powder collector lower part is equipped with an opening, be equipped with an annular scraper blade between centrifugal fan impeller and the annular powder collector, the outer fringe of annular scraper blade and the inner wall scraping contact of annular powder collector when rotating by motorized pulley driven annular scraper blade, the housing is just to being equipped with the air intake in the middle of the centrifugal fan impeller, draught fan place housing is equipped with the air exit, and the opening below housing department of annular powder collector is equipped with the ash hole. The utility model relates to a rationally, simple structure is compact, and air purification is effectual.

Description

Cyclone

Technical field

This utility model relates to a kind of cyclone.

Background technology

Along with the development of the high speed development of national economy, particularly World Economics, energy-saving and environmental protection are to be placed in two big problems in face of the people of the world.

The high energy-consuming industries such as power plant, cement plant, steel plant that make of industrial development are doing work in process and Winter heat supply heating process with fire coal, substantial amounts of fire coal, and dust after burning and heat to pass through high-altitude chimney to airborne release.

Get more and more to the dust dust granules of air venting. Present haze serious harm people's is healthy. How reducing the discharge of dust granules in chimney, reclaim re-using by the emission in chimney is a major issue benefited the nation and the people simultaneously.

Present domestic conventional flue gas ash removal method has following four:

(1) high-pressure electrostatic precipitation method: this method is that dust is ionized into positive and negative ion under high voltage electric field effect. Positive and negative ion is adsorbed on electrode. Dust is collected by the method for rapping. This cleaner unit volume is big, in electric precipitation process, it is necessary to voltage significantly high, the electricity of consumption is also very big.

(2) bag-ty pe dust collection: by Bag filter dust.

This method consumptive material must be big, and cloth bag is easily damaged; In carrying out bag dust removal process, after cloth bag uses certain time. By recoil method, the thick dust blowback method of cloth bag is dredged. Notice that cloth bag easily catches fire when high temperature.

(3) cyclonic separation method: dust granules in gas is separated with cyclone separator.

The chimney dust removal of domestic coal-fired power plant is substantially employing Electrostatic Absorption and bag-ty pe dust collection, cyclone dust removal mixing use.

(4) drenching with rain Filtration: water consumption is more, row's tube cell line is longer, and the stockyard of powder ash is bigger. Dust in gas is washed off by the method washed with water.

For a kind of method that power plant, cement plant, steel mill, confession steam power plant etc. are intended to have simple possible: reclaim the dust of chimney tail gas to get up to re-use. Need a kind of high effective flue gas cleaner unit.

Summary of the invention

The technical problems to be solved in the utility model be to provide a kind of can the cyclone of liquid and solid-state dust granules in recovered flue gas.

In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is: cyclone, including case, dividing plate, centrifugal fan impeller, annular powder collector, annular scraper, air-introduced machine, motor; Centrifugal fan impeller and draught fan impeller are coaxially disposed and are separately positioned on the both sides of dividing plate and be all enclosed in case, the output shaft of motor is supported by rotating shaft base, and drive axle seat is fixed in the middle of dividing plate by support, and support has just window to centrifugal fan impeller and draught fan impeller; Motor output shaft drives centrifugal fan impeller and draught fan impeller synchronous axial system; The annular powder collector being fixed on case be trapped among centrifugal fan impeller periphery and and vane edge interval set distance, annular powder collector bottom be provided with an opening; Be provided with an annular scraper between centrifugal fan impeller and annular powder collector, motorized pulleys when the annular scraper driven rotates, the outer rim of annular scraper contacts with the inwall scraping of annular powder collector; Case is just to being provided with air inlet in the middle of centrifugal fan impeller, and air-introduced machine place case is provided with exhaust outlet, and below the opening of annular powder collector, case place is provided with ash hole.

As preferably:

Also include screw rod conveyor; The charging aperture of screw rod conveyor connects with the ash hole on case, and the dust fallen from annular powder collector opening is concentrated output by the discharging opening of screw rod conveyor.

The groove that inwall is annular of annular powder collector.

Annular scraper includes scraper plate and blade holder; The circumference of plural number block scraper plate blade holder annularly is uniform, and motorized pulleys drive blade holder to rotate.

Scraper plate is that rubber parts is made.

The beneficial effects of the utility model are:

Reasonable in design, simple and compact for structure, good air purification effect.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.

Fig. 1 is the front view of this utility model cyclone embodiment.

Fig. 2 is the left view of this utility model cyclone embodiment.

Fig. 3 is the powder collector front view of this utility model cyclone embodiment.

Fig. 4 is the A-A sectional view of Fig. 3.

Fig. 5 is the annular scraper front view of this utility model cyclone embodiment.

Fig. 6 is the annular scraper sectional view of this utility model cyclone embodiment.

Fig. 7 is the schematic diagram of this utility model cyclone embodiment.

Fig. 8 is the two-stage series connection structural representation of this utility model cyclone embodiment.

Labelling in figure, 1-case, 2-scraper plate, 2 '-two-stage scraper, 3-annular powder collector, 3 '-two-stage ring shape powder collector, 4-blade holder, 5-cylinder, 5 '-two stage cylinder, 6-Rolling motor, 7-blade, 8-inlet seal ring, 9-centrifugal fan impeller, 9 '-two-stage centrifugal draught fan impeller, 10-drive axle support, 11-Vanes on Induced Draft Fan, 12-draught fan impeller, 13-drive axle seat, 14-motor, 15-air inducing casing, 16-dividing plate, 17-screw rod conveyor, 18-conveyer motor, 19-powder ash, 20-opening, 21-high-temperature flue.

Detailed description of the invention

Fig. 1 is a kind of cyclone, is made up of case 1, dividing plate 16, centrifugal fan impeller 9, annular powder collector 9, annular scraper 2, air-introduced machine, motor 14.

Centrifugal fan impeller 9 and draught fan impeller 12 are coaxially disposed and are separately positioned on the both sides of dividing plate 16, and centrifugal fan impeller 9 and draught fan impeller 12 close off in case 1 and air inducing casing 15.The output shaft of motor 14 is supported by rotating shaft base 13, and drive axle seat is fixed in the middle of dividing plate 16 by drive axle support 10, support 10 has the window just to centrifugal fan impeller and draught fan impeller so that gas can flow to draught fan impeller from centrifugal fan impeller.

Motor 14 drives centrifugal fan impeller 9 and draught fan impeller 12 synchronous axial system by output shaft.

The annular powder collector 3 being fixed on case 1 is trapped among the periphery of centrifugal fan impeller, and and the distance that sets of vane edge interval one, annular powder collector 3 has an opening 20 down. At Fig. 3, in 4, the inwall of annular powder collector 3 is an annular groove, and opening 20 is positioned at bottom, just the case 1 of opening part is had ash hole. The inwall of annular powder collector 3 is set to groove-like and contributes to the accumulation of dust, and top dust can slip down to the opening part of bottom along both sides annular groove and drop.

Annular powder collector adopts antifriction metal (AFM) material to make, so as to stand the long-term erosive wear of dust granules.

In fig. 2, being provided with an annular scraper between centrifugal fan impeller and annular powder collector, annular scraper is made up of scraper plate 2, blade holder 4, cylinder 5 and Rolling motor 6. 9 cylinders 5 are circumferentially uniformly distributed, each cylinder 5 drives by a Rolling motor 6, cylinder drives blade holder 4 to rotate again, in blade holder equipped with the scraper plate 2(Fig. 5 made with rubber, 6), the outer rim of scraper plate 2 contacts with the inboard wall groove of annular powder collector, and the dust scraping of accumulation in groove is fallen to the opening of lower section.

Case 1 is just to being provided with air inlet in the middle of centrifugal fan impeller, and high-temperature flue 21 is directly connected with the case of air inlet. Case place below the opening of annular powder collector is provided with ash hole. Air inducing casing 15 is provided with exhaust outlet.

Lower section in annular powder collector lower openings, namely a screw rod conveyor 17 is installed at the ash hole place of case 1, the charging aperture of screw rod conveyor 17 connects with the ash hole of case 1, and screw rod conveyor is driven by conveyer motor and by discharging opening, the powder ash 19 fallen from annular powder collector opening concentrated output.

The effect of screw rod conveyor mainly has following two:

1) accumulation dust in case 1 bottom is transferred out the outside of centrifugal blower.

2) case of centrifugal blower is played sealing function by screw rod conveyor, makes high-temperature flue gas not leak, it is prevented that secondary pollution occur.

It is provided with inlet seal ring 8 in centrifugal fan impeller 9 and case 1 junction.

The gas flow direction of this device:

The mixed flue gas containing dust granules discharged from high-temperature flue sucks from centrifugal blower fan blade wheel, throw away at a high speed along the blade of centrifugal blower fan blade wheel again, in gas, the dust granules of heavier mass bumps against in the groove of annular powder collector, and scraped by annular scraper in the screw rod conveyor dropping to lower section and be discharged, the residue gas without dust granules is then attracted to air-introduced machine along centrifugal blower fan blade wheel periphery, finally discharges from the air vent of air-introduced machine.

Operation principle:

In the figure 7, the mixed flue gas discharged from high-temperature flue is drawn into impeller by the centrifugal blower of high speed rotating, under the centrifugal action of the impeller blade of high-speed rotation, smoke mixture throws away at a high speed along the tangential direction of blade to periphery, although the gas thrown away and dust granules all have identical speed, but owing to density is different, the kinetic energy that the material of such different densities has is different.

The kinetic energy Fs=1/2mv2 of object.

In formula:

Fs represents the kinetic energy of object

M represents the quality of object

V represents the speed of material flows.

As can be seen from the above equation, mass of object m is more big, and the kinetic energy Fs of its object is also more big, and the distance outwards dished out is more remote.

With a certain distance from the position of impeller outer edge, one annular powder collector surrounded by impeller is being installed, thrown away dust granules by impeller and bump against on annular powder collector, motorized pulleys drive annular scraper to rotate and are scraped by the powder ash particle accumulated in annular powder collector inboard wall groove, powder ash particle eventually falls on the screw rod conveyor being arranged on below annular powder collector opening, is finally discharged powder ash particle by screw rod conveyor.

Gas after removing dust granules flows to air-introduced machine inspiratory direction, air-introduced machine discharge the air of purification,

Considering to be got rid of by more dust granules in high-temperature flue gas, the spacing distance at annular powder collector and centrifugal blower fan blade wheel edge is designed according to dust granules content in gas and total exhaust air rate as far as possible. This spacing is little, contributes to the eliminating of smaller particle, but the gas after too small also impact eliminating granule flows toward next stage air-introduced machine.

In order to be able to reach better dust removing effects, the present embodiment can take the form of plural serial stage in structural design. Fig. 8 is the cyclone of a kind of two-stage series connection structure, and the impeller of first-stage centrifugal blower fan is coaxially connected by it with the impeller of two-stage centrifugal blower fan 9 ', and drives (only needing suitable expanded motor power) with same motor. And the driving cylinder of one-level scraper plate and two-stage scraper 2 ' is also coaxial series connection. Impeller periphery at two-stage centrifugal blower fan 9 ' arranges two-stage ring shape powder collector 3 '. The mixed flue gas sucked from high-temperature flue is discharged from air-introduced machine respectively through after first-stage centrifugal dedusting and two-stage centrifugal dedusting again, and after two-stage tandem purifies, the content of dust in air granule is less.

Above-described this utility model embodiment, is not intended that the restriction to this utility model protection domain. Any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within claims of the present utility model.

Claims

1. cyclone, including case, dividing plate, centrifugal fan impeller, annular powder collector, annular scraper, air-introduced machine, motor; It is characterized in that, described centrifugal fan impeller and draught fan impeller are coaxially disposed and are separately positioned on the both sides of dividing plate and be all enclosed in case, the output shaft of described motor is supported by rotating shaft base, and drive axle seat is fixed in the middle of dividing plate by support, and support has just window to centrifugal fan impeller and draught fan impeller; Described motor output shaft drives centrifugal fan impeller and draught fan impeller synchronous axial system; Be fixed on case described annular powder collector be trapped among centrifugal fan impeller periphery and and vane edge interval set distance, annular powder collector bottom be provided with an opening; Be provided with an annular scraper between centrifugal fan impeller and annular powder collector, motorized pulleys when the annular scraper driven rotates, the outer rim of annular scraper contacts with the inwall scraping of annular powder collector; Described case is just to being provided with air inlet in the middle of centrifugal fan impeller, and air-introduced machine place case is provided with exhaust outlet, and below the opening of annular powder collector, case place is provided with ash hole.

2. cyclone according to claim 1, it is characterised in that: also include screw rod conveyor;The charging aperture of described screw rod conveyor connects with the ash hole on described case, and the dust fallen from annular powder collector opening is concentrated output by the discharging opening of screw rod conveyor.

3. cyclone according to claim 1, it is characterised in that: the groove that inwall is annular of described annular powder collector.

4. cyclone according to claim 1, it is characterised in that: described annular scraper includes scraper plate and blade holder; Described in plural number block, the circumference of scraper plate blade holder annularly is uniform, and motorized pulleys drive blade holder to rotate.

5. cyclone according to claim 4, it is characterised in that: described scraper plate is that rubber parts is made.