CN102489099A

CN102489099A - Deduster

Info

Publication number: CN102489099A
Application number: CN2011103728002A
Authority: CN
Inventors: 汪为健
Original assignee: Stargroup Research & Integration Co Ltd
Current assignee: Stargroup Research & Integration Co Ltd
Priority date: 2011-11-22
Filing date: 2011-11-22
Publication date: 2012-06-13

Abstract

The invention provides a deduster composed of two components, which are a dust particle and flue gas separating apparatus and a dust discharging apparatus. The dust particle and flue gas separating apparatus comprises a cyclone generator 1 arranged above a built-in cylinder-shaped electrode. The middle part of the cyclone generator 1 is a support, and the peripheral of the cyclone generator 1 is fixed on the wall of an electric dedusting apparatus. A heat insulating layer 8 is arranged on the wall of the electric dedusting apparatus, wherein the heat insulating layer 8 is used for holding temperature. A space between a cylinder wall contacting an edge of a dust inhibitor 3 and a wall of the electric dedusting apparatus is provided with a jacket 7. The dust discharging apparatus is mainly composed of a dust collecting hopper 11, a dust filter 12, a back flushing apparatus 15, a water cooler 17, a dust discharging blower 13, and the like. The dust discharging apparatus is positioned at a lower part of the dust particle and flue gas separating apparatus, and is used for discharging separated dust. With the deduster with the structure, advantages of cyclone centrifugal dedusting and electric dedusting can be combined, and dust particles can be effectively separated from flue gas, such that a dedusting effect is reached. The pollution to the atmosphere is reduced, and the purified flue gas can be recycled. Therefore, an environment protection effect can be reached, electricity consumption can be reduced, and energy can be saved.

Description

A kind of deduster

Technical field

The present invention relates to a kind of deduster, relate in particular to the electric cleaner device in a kind of CIU.

Background technology

In traditional CIU, use gas fuel to provide thermal source that the tail gas that is rich in toxic gas in the incinerator is burned cracking fully as raw material, reduce the harm of toxic and harmful in the tail gas; Contain a large amount of dust particles in the flue gas that produces; If flue gas is not carried out dedusting, will make in the flue gas after the burning and contain small amount of dust, if incineration tail gas through the gas reuse after burning in curing oven; The flue gas that contains dust particles; Directly be recycled to the paint curing utilization of carrying out Coil Coating Products in the curing oven, the dust granule that contains in the gas can have a strong impact on the quality of plate surface coating, is unfavorable for producing high-quality colour coating sheet material.In order to address these problems, need behind incinerator, increase deduster, come flue, trap particulate matter.Original electric cleaner only adopts electrostatic dust removing method mostly, makes dust charged, is attached on the wall, and shake falls then.In shake falls process, can produce reentrainment of dust, this part dust can get into curing oven along with air-flow, influences dust removing effects, and power consumption is bigger, is not suitable for continuous production status such as color coating line.

Summary of the invention

Not thorough in order to overcome above-mentioned dedusting; Dust removing effects is bad, and the bigger technical problem of power consumption, the technical scheme that the present invention has taked electric precipitation and cyclone dust removal to combine; And designed the online ash removal device; It is bad to have overcome existing deduster dust removing effects, and incompatibility is produced continuously, and the big technical problem of power consumption.

Particular content of the present invention does; A kind of deduster is made up of separator and ash exhauster; Separator has comprised spigot 1 and built-in tubular electrode 2, power-line terminal, chuck 7, and smoke inlet 18 and exhanst gas outlet 9 play a spigot 1 and be installed in the built-in tubular electrode 2; In the outside of built-in tubular electrode 2 heat-insulation layer 8 is arranged; Said ash exhauster is made up of flue-dust retainer 11 and the dust filter 12, the ash discharge blower fan 13 that are installed on the flue-dust retainer 11, and there is water cooler 17 porch of flue-dust retainer 11, and ash discharging hole 10 is arranged at the bottom.

On the inwall of said built-in tubular electrode 2, the bottom of playing spigot 1 is equipped with the grey device 3 of resistance, evenly has a plurality of ash-holes 6 at grey device 3 of resistance and built-in tubular electrode 2 junctions one circle, puts and is provided with chuck 7 between tubular electrode 2 and the heat-insulation layer; On said built-in tubular electrode 2, be provided with high voltage source binding post 5, ground connection binding post 4 is made up of outer vortex fin 19, axle 20 at said spigot 1; Junction at said flue-dust retainer 11 and ash discharge blower fan 13 is provided with back-blowing device 15; Between said ash discharge blower fan 13 and back-blowing device 15, be provided with electrically operated valve 14, be provided with by-pass valve control 16 at water cooler 17 rear portions.Said electrically operated valve 14 is the service intermittent mode with by-pass valve control 16, can online ash removal.

The invention has the beneficial effects as follows:

1. deduster of the present invention in the technical scheme that whirlwind centrifugal dust-removing and electric precipitation combine, can separate dust particles under the dust removing effects that two kinds of dust removing effects combine with flue gas; Reach dust removing effects; Minimizing is to the pollution of atmosphere, and can recycle flue gas after being purified, reaches environment protecting; Reduce power consumption, save the energy.

2. deduster of the present invention has been installed spigot 1 at inlet; Adopt the dust removal with machine principle elder generation dust particles that a part of particle diameter is bigger to separate; Alleviate the cleaner workload of utilizing the electrostatic precipitation principle, built-in tubular electrode 2 has been installed, adopted the dedusting of electrostatic precipitation principle; Guarantee the completeness of whole dedusting, reach thorough dust removing effects.

3. deduster of the present invention is equipped with back-blowing device 15 on the wind output channel of ash exhauster; A period of time after work; After dust reaches certain thickness on the dust filter 12, open back-blowing device 15, be used for removing the dust that accumulates on the dust filter 12; Prevent to stop up, and avoid the load of air draft blower fan excessive.

4. the electrically operated valve in the ash exhauster and the working method of by-pass valve control are step in the technical scheme of the present invention's employing; Therefore energy resource consumption is few; And do not influence the utilization and the operation of thermal source gas flow of the energy of CIU in the bus; Can online ash removal, do not influence the operation of bus.

Description of drawings

Fig. 1. electric cleaner device sketch map

Fig. 2. play the sketch map of spigot

As depicted in figs. 1 and 2: 1. a spigot, 2. built-in tubular electrode, the 3. grey device of resistance, 4. ground connection binding post, 5. high voltage source binding post, 6. ash-hole, 7. chuck, 8. heat-insulation layer, 9. exhanst gas outlet, 10. ash discharging hole, 11. flue-dust retainers, 12. dust filters, 13. ash discharge blower fans, 14. electrically operated valves, 15. back-blowing devices, 16. by-pass valve controls, 17. water coolers, 18. smoke inlets, 19, outer vortex fin, 20.

The specific embodiment

Following with reference to description of drawings, the technical scheme that the present invention implements is carried out clear, complete description.

For realizing above-mentioned purpose; The technical solution adopted for the present invention to solve the technical problems is like accompanying drawing 1: be made up of grit and flue gas separation unit and ash exhauster two parts; Said grit and flue gas separation unit play spigot 1 and are positioned at built-in tubular electrode 2 tops, are fixed on the device wall around the intermediate support, and the grey device 3 of some resistances evenly distributes on the built-in tubular electrode 2; Hindering grey device 3 edges contacts with barrel; Hinder grey device 3 edge chamfers, contact with barrel and form a circle skewed slot, be uniform-distribution with a circle ash-hole 6 on the barrel of skewed slot correspondence; On the wherein built-in tubular electrode 2 high voltage source binding post 5 is housed and connects high voltage source, hinder on the barrel of grey device 3 EDGE CONTACT ground connection binding post 4 ground connection are housed; Built-in tubular electrode 2 bottoms are fixed on the electric dust collector wall by support, and heat-insulation layer 8 insulations are arranged on the electric dust collector wall; The barrel and the space between the electric dust collector wall that hinder grey device 3 EDGE CONTACT are chuck 7; Chuck 7 bottoms connect flue-dust retainer 11, and flue-dust retainer 11 tops are water cooler 17, and water cooler 17 bottoms connect electrically operated valve 14, and flue-dust retainer 11 bottoms are ash discharging hole 10, and there is wind output channel at flue-dust retainer 11 middle parts, and wind blower fan 13 runs in; The air channel inlet is dust filter 12, and back-blowing device 15 is installed in dust filter 12 backs, and electric control valve 16 is arranged behind the pipeline.Comprise outer vortex fin 1, axle 2 like 2 said spigots of accompanying drawing 1.

It is cylindrical that axle 2 tops of said spigot are that conical bottom connects, and on the axle outer vortex fin 1 arranged.Flue gas stream is carried out dust removal with machine in smoke inlet 18 gets between the spigot location.The axle 1 that plays spigot 1 is fixing; Form spiral air flow under the guide functions of the out-of-date outer vortex fin 1 at axle 2 of air communication; The bigger particle of quality in the flue gas relies on action of centrifugal force to be attached on the inwall of built-in tubular electrode under the drive of swirling eddy, and dust particles is separated from flue gas stream; The effect therein of outer vortex fin 1 is to make air-flow rotatablely move from top to down along outer wall, and little of gas radially moves to the center.Particle tentatively separates with flue gas, reaches the purpose of dust removal with machine; Dust particles is separated from air-flow, like this can be with the particle separation of particle diameter greater than 20 μ m, this is to utilize dust removal with machine principle dust-separating, plays spigot 1 and also plays water conservancy diversion at this; The built-in tubular electrode 2 of band high-tension electricity produces high voltage electric field with the barrel of ground connection; Be suspended in the dust particles in the flue gas stream; Receive the emitting ions effect and charged, be adsorbed on the barrel, rely on certain air pressure of swirling eddy to drive; Fall into dust removing system, this is to utilize electrostatic precipitation principle dust-separating; Under the guide functions of the outer vortex fin 19 that plays spigot 1, air-flow rotatablely moves along outer wall from the top down, and little of gas radially moves to the center; Through the zone that built-in tubular electrode 2 is housed; High voltage source binding post 5 on the built-in tubular electrode 2 connects high voltage source, and wiring ground connection on the ground connection binding post 4 on the drum outer wall makes this zone form closed high voltage electric field; Form electric current through electrostatic induction; Be suspended in the dust particles in the flue gas stream, receive the emitting ions effect and charged, make dust particles be adsorbed on the barrel; Owing in the tube certain air pressure is arranged; Make dust particles in the acting in conjunction lower edge of air-flow and gravity wall is fallen the grey device of resistance 3 gradient edge and the formed skewed slot of barrel, hindering on the barrel of the gradient top, edge of grey device 3 has a circle ash-hole 6 uniformly, dust particles under the positive air pressure effect that necessarily forms by ash discharge blower fan 13 through collecting in the ash-hole 6 entering chucks 7.

Ash exhauster mainly is made up of flue-dust retainer 11, dust filter 12, back-blowing device 15, water cooler 17 and ash discharge blower fan 13, electrically operated valve 14, by-pass valve control 16.Ash exhauster places the bottom of grit and flue gas separation unit, and isolated dust is discharged.When electrically operated valve 14, by-pass valve control 16 opened, under the effect of air draft blower fan 13 suctions, with being collected in high temperature dusts in the chuck 7 through after water cooler 17 and the cooling water heat exchange cooling, in the inspiration flue-dust retainer 11; In flue-dust retainer 11, the gas that contains dust particles is equipped with dust filter 12 by 13 suctions of ash discharge blower fan at the wind output channel inlet; Gas is discharged the electric cleaner device through becoming the gas that does not contain dust particles behind the dust filter 12 through ash discharge blower fan 13; After dust filter 12 filtrations, fallen dust is collected in the flue-dust retainer 11, closes electrically operated valve 14, by-pass valve control 16 then; Open above-mentioned action after a period of time again; When the dust in the flue-dust retainer 11 gathers some, open sealing up a door of ash discharging hole 10, dust is discharged through ash discharging hole 10; Back-blowing device 15 is housed on wind output channel, and a period of time after work, after dust reached certain thickness on the dust filter 12, closing control valve 16 was opened electrically operated valve 14, opens back-blowing device 15, is used for removing the dust that accumulates on the dust filter 12; Flue gas after the dedusting flows to bus system through the exhanst gas outlet 9 of electric cleaner.

The above; Be merely the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of said claim.

Claims

1. deduster; It is characterized in that: form by separator and ash exhauster; Said separator has comprised spigot 1 and built-in tubular electrode 2, power-line terminal, chuck 7, and smoke inlet 18 and exhanst gas outlet 9 play a spigot 1 and be installed in the built-in tubular electrode 2; In the outside of built-in tubular electrode 2 heat-insulation layer 8 is arranged; Said ash exhauster is made up of flue-dust retainer 11 and the dust filter 12, the ash discharge blower fan 13 that are installed on the flue-dust retainer 11, and there is water cooler 17 porch of flue-dust retainer 11, and ash discharging hole 10 is arranged at the bottom.

2. a kind of deduster as claimed in claim 1 is characterized in that: on the inwall of said built-in tubular electrode 2, the bottom of playing spigot 1 is equipped with the grey device 3 of resistance, evenly has a plurality of ash-holes 6 at grey device 3 of resistance and built-in tubular electrode 2 junctions one circle.

3. a kind of deduster as claimed in claim 1 is characterized in that: be made up of outer vortex fin 19, axle 20 at said spigot 1.

4. like the described a kind of deduster of claim 1-3, it is characterized in that: the junction at said flue-dust retainer 11 and ash discharge blower fan 13 is provided with back-blowing device 15.

5. a kind of deduster as claimed in claim 4 is characterized in that: between said ash discharge blower fan 13 and back-blowing device 15, be provided with electrically operated valve 14, be provided with by-pass valve control 16 at water cooler 17 rear portions.

6. a kind of deduster as claimed in claim 4 is characterized in that: said electrically operated valve 14 is the service intermittent mode with by-pass valve control 16, can the Hand scarf dust.