CN2503367Y - Granite wet-type five-grade desulfurization dust control device - Google Patents

Abstract

The utility model relates to a granite wet five-stage desulfurization dust removing device which is characterized in that the five-stage dust removing device comprises a Venturi tube dust remover, a grid type cyclone dust removing device, a cyclonic water film dust removing device, a water-gas nozzle impact tube device and a water storage type impact water bath dust removing device, wherein the grid type cyclone dust removing device comprises two seconds of hollow cylinders and a snail-fan shaped arranged distributed grid type cyclone plate added in each section of cylinder, and the top of the cylinder of the cyclonic water film dust removing device is added with a vertical multi-tube nozzle; the top of the upper part of the water-gas nozzle impact tube device is provided with a gravity impact water nozzle, and the bottom of the lower part of the water-gas nozzle impact tube device is provided with a projectile-shaped gas nozzle with a granite bottom pier. The utility model uses spray, atomization, impact, condensation, cyclone centrifugation, cyclonic inertia, gravity impact, settlement and other reaction mechanisms to result in that the gas is in contact with the liquid many times and the heat exchange and quality conversion is reinforced, which forms the integration between temperature-reducing dust removal and desulfurization in order to gain the high efficiency of dust removal and desulfurization. The utility model has the advantages of the reliable and stable performance, the simple operation management, the low cost, the simple structure and the long service life.

Description

Granite Wet Type Grade-Five Desulfurization Dust Catcher

Technical field: the utility model relates to a kind of dust-removing desulfurating apparatus that is used for boiler, particularly a kind of wet type Pyatyi desulfation dust-extraction device of granite system.

Background technology: at present each industrial and mining enterprise unit a large amount of coal-burning boilers that use; the capital produces pernicious gases such as a large amount of flue dust and sulfur dioxide; environmental protection has become a fundamental state policy of China; smoke abatement and dust control is subjected to people day by day and payes attention to widely; many comparatively effectively smoke-eliminating dust-controlling desulfurizing apparatus have appearred in market; these cleaners have wet type or dry type; if any venturi-type; whirlwind water film dedusting formula; various corrosion-resistant grouan materials are made; stone matter water dust scrubber; impingement washing scrubber or the like; these dedusters are because of structural reason; also there is weak point in its dust-removal and desulfurizing effect; for example: 1; existing hollow cartridge type cyclonic water film deduster is owing to factor affecting such as being subjected to air-introduced machine current/voltage instability causes an interior flue gas rate of climb fluctuation unstable; even can't form helical form; efficiency of dust collection is had a greatly reduced quality; do not reach designing requirement and discharge standard requirement; water phenomenon also appears in existing in addition water dust scrubber easily, can't solve chimney " black sonw flower " problem of wafing.2, existing impingement washing scrubber exists shortcoming to have: just single-stage dedusting, can't reach discharge standard, and the impact tube of its hollow only plays logical cigarette effect; Impact tube bottom taper shower nozzle is that band shank type or lacing wire formula support, and produces the grey phenomenon of retaining, stops up the influence operation easily; The low water phenomenon that is prone to of deduster overall height.3, venturi scrubber originally is a very high-effective dust-removing device, but also exists shortcoming to have: because of sprinkler head pressure does not reach or the fluctuation of uneven and air-introduced machine air output (wind flow), and influence atomizing, cohesion.For improving efficiency of dust collection, strengthen atomizing, adopting the area (flow velocity is brought up to more than the 100m/s) that dwindles aditus laryngis and producing resistance is greatly a problem, shower nozzle supplies water with clear water, and the big expense height of water consumption is if use sedimentation basin recirculated water, how much be with sand grains in the water, shower nozzle easily stops up again.

At dedusting methods such as existing water dust scrubber, impingement dust collector simple (just single-stage or secondary), the defective that dust removing effects is desirable not enough, the purpose of this utility model provides a kind of Granite Wet Type Grade-Five Desulfurization Dust Catcher, and making also has good clean-up effect to various flue dust and pernicious gas as the sulfur dioxide that is difficult to purify.

The utility model is realized with following technical scheme: it comprises compositions such as multistage dedusting (device) device and dehydration (chamber) device, smokejack (tube), air-introduced machine, it is characterized in that: a, described multistage dedusting (device) device are meant that the venturi tube duster handled as the first order/grid formula cyclone dust catcher of handling as the second level, the whirlwind water film dedusting of handling as the third level (device) install, combine as the aqueous vapor shower nozzle impact tube device of fourth stage processing with as the storage water heater impact water bath dust arrester of level V processing; B, wherein said second level grid formula cyclone dust catcher are by two sections hollow cylinders and add (putting) grid formula eddy flow plate that is the snail fan shape arranged distribution (playing guide vane uses) formation in every section hollow cylinder that this grid formula cyclone dust catcher is positioned at the lower bottom part of third level whirlwind moisture film cylindrical shell again after assembling; C, wherein add the water supply installation of vertical (rectilinear) multitube shower nozzle (spray) at the cylindrical shell top of described third level whirlwind water film dust removal device; D, wherein the top is provided with gravity and impacts sprinkler head, the shell shape gas blowout head of pier at the bottom of the lower bottom part of impact tube device is provided with granite above the described aqueous vapor shower nozzle impact tube device of handling as the fourth stage.

Grid formula swirl-flow devices of the present utility model plays the current stabilization effect in tube, force flue gas to rise along the barrel helical form, install vertical multitube shower nozzle spray water supply method additional at the top of cylindrical shell, it has not only played the moisture film effect along barrel, also played the spray effect, can make to be covered with big or small water droplet in the whole hollow, if flue gas is influenced by other factors and can not form under the helical form rising situation, also can play the dedusting effect in this zone.Grid formula swirl-flow devices requires not strict to flue gas flow rate, be generally 3-6m/s, if the flow velocity higher dedusting that also do not influence on the low side.

In sum, multiple reaction mechanism such as centrifugal, the whirlwind inertia of the utility model utilization spray, atomizing, collision, cohesion, eddy flow, gravity impact, sedimentation.Gas-liquid is repeatedly contacted, strengthen and carry out heat exchange and quality conversion, form cooling, dedusting, the desulfurization one is finished, to obtain dust-removal and desulfurizing efficient efficiently, also have wear-resisting, corrosion-resistant, cold-resistant thermofusion, it both can be used for cooling high-temperature fume, also can purify the harmful high concentration dusty gas that contains micron and the following dust granules of sub-micron and be easy to be absorbed by water liquid, dependable performance is stable, floor space is little, one-time investment is few, operating cost is low, simple in structure, operational management is simple, long service life (can reach 30-50) is applicable to various boilers, kiln, the flue-gas dust-removing and desulfurization of furnace cupola is applicable to the large, medium and small boiler of 1-240 ton.

Description of drawings: Fig. 1 is a kind of overall structure schematic diagram of the present utility model.Fig. 2 is the A-A direction cutaway view of Fig. 1, and Fig. 3 is the cutaway view of Figure 1B-B direction, and Fig. 4 is Fig. 2 Q-Q direction cutaway view (schematic cross section of the first road snail fan shape grid formula eddy flow plate).

Wherein: 1-Venturi tube (venturi scrubber), 2-whirlwind moisture film cylindrical shell (cyclonic water film deduster), 3-crosses flue, 4-dewatering station (tube), 5-impulse chamber cesspool, the 6-outlet flue, the 7-Venturi tube advance mouth, the collapsible tube of 8-Venturi tube, the 9-water hose nozzle, 10-venturi aditus laryngis, 11-venturi anemostat, 12-in-line nozzle, 13-shower nozzle feed pipe, 14-is positioned at the first gate formula eddy flow plate (playing guide vane uses) of cylindrical shell bottom, the 15-second gate formula eddy flow plate, 16-hollow cylinder (barrel), the 17-intermediate support, 18-whirlwind moisture film cylindrical shell, 19-is (vertically) formula multitube shower nozzle vertically, the 20-arm, the 21-annular conduit, the 22-cover plate, 23-grid formula eddy flow plate top water supply shower nozzle, 24-grid formula cyclone dust catcher, 25-grid formula eddy flow chassis, 26-dust sewage, the water seal of 27-ash discharging hole, the 28-locular wall that dewaters, 29-smokejack (tube), 30-dewatering station baffle plate, 31-dewatering station inner chamber, 32-impulse chamber (chamber wall), 33-impulse chamber smoke outlet flue, 34-impact tube cylindrical shell, 35-impact tube top gravity impacts sprinkler head, 36-impact tube inner chamber, the shell shape gas blowout head of pier at the bottom of the 37-granite (base), 38-impulse chamber ash discharge water seal, 39-impulse chamber cesspool, 40-impulse chamber feed pipe.

The specific embodiment: the utility model also can adopt first and second gate formula eddy flow plate 14,15 in the described grid formula cyclone dust catcher 24 granite sheet material and four sides polishing to make when specific design is implemented, and is that venturi anemostat 11 afterbodys are provided with in-line nozzle 12 in the bottom of the first gate formula eddy flow plate.Can prevent that the sticking ash in grid formula eddy flow plate slit and surface from stopping up by adding scrubbing of big yield hydraulic pressure and top shower water like this.

Claims (2)

1, a kind of Granite Wet Type Grade-Five Desulfurization Dust Catcher, it comprises that multistage dust arrester and dewatering station (4), smokejack (2 9), air-introduced machine form, and it is characterized in that: the grid formula cyclone dust catcher (24) that a, described multistage dust arrester be meant Venturi tube (1) deduster handled as the first order, handle as the second level, the whirlwind water film dust removal device of handling as the third level, the aqueous vapor shower nozzle impact tube device of handling as the fourth stage and the storage water heater impact water bath dust arrester of handling as level V combine; B, wherein said second level grid formula cyclone dust catcher (24) are by two sections hollow cylinders (16) and add grid formula eddy flow plate (14, the 15) formation that is the snail fan shape arranged distribution that is located in every section hollow cylinder that this grid formula cyclone dust catcher (24) is positioned at the below of third level whirlwind moisture film cylindrical shell (18) again after assembling; C, wherein add vertical multitube shower nozzle (19) at cylindrical shell (18) top of described third level whirlwind water film dust removal device; D, wherein the top is provided with gravity and impacts sprinkler head (35), the shell shape gas blowout head (37) of pier at the bottom of the lower bottom part of impact tube device is provided with granite above the described aqueous vapor shower nozzle impact tube device of handling as the fourth stage.

2, Granite Wet Type Grade-Five Desulfurization Dust Catcher according to claim 1, it is characterized in that first and second gate formula eddy flow plate (14,15) in the described grid formula cyclone dust catcher (24) is to adopt granite sheet material and four sides polishing to make, be provided with in-line nozzle (12) at venturi anemostat (11) afterbody.

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