CN201524520U - Efficient desulfuration and dedusting device - Google Patents

Abstract

The utility model provides an efficient desulfuration and dedusting device with high dedusting and desulfuration efficiency, compact structure, easy implementation, simple operation and strong adaptability. The device comprises circulating water, a high-pressure water pump, a liquid supply pipe, a host machine, a flue, a separator, an elbow, a desulfuration device, a fan and a chimney, adopts a unique principle, is an integration of various desulfuration and dedusting devices, and integrates simulation principle, high-pressure water jet, gravity settling, inertial settling, adsorptive force, mirror surface force and sound wave force continuous generating liquid film adsorption centrifugal separation, and multi-stage washing and multi-path reaction desulfuration and dedusting; and a tailor-made desulfuration demister leads the efficient desulfuration and dedusting device to have high desulfuration and dedusting efficiency, low operation and maintenance cost, stable performance and simple operation; an inner lining is made of special heat-resistant, abrasion-resistant and corrosion-resistant materials, thus having long service life; and when in running, the fan does not carry water, thus having unique treating effect to large boilers and kilns.

Description

A kind of high-efficient desulfation dust-extraction device

Technical field:

The utility model relates to a kind of flue purifier of boiler, relates in particular to a kind of high-efficient desulfation dust-extraction device.

Background technology:

Coal-burning boiler is easy to generate flue dust and SO when burning ₂Deng pernicious gas,, effectively remove waste gas in process of production and become more and more important problem of people along with the attention of people to the air environmental protection.Nowadays occurred many wet desulfurization dust-removing devices on the market, these desulfation dust-extraction devices can only be by water and desulfurizing agent with the SO in the flue dust ₂By reaction dust is filtered out, can not make the removals such as harmful substance that chemical reaction does not filter out of passing through that exist in the gas that enters airborne humidity at last, moistening flue gas behind the desulfurization and dedusting is along with air exhauster enters in the atmosphere like this, easily air is polluted, and the desulfation dust-extraction device area occupied is big, and the atomizing flocculating result is bad, and desulfurization dust-removing efficiency is reduced, cost is higher, and structure is complicated.

Summary of the invention:

The purpose of this utility model has provided a kind of dust-removal and desulfurizing efficient height, compact conformation, easy to implement, simple to operate, a kind of high-efficient desulfation dust-extraction device that conformability is strong.

The technical solution of the utility model is: it be by; Recirculated water, high-pressure hydraulic pump, feed pipe, main frame, flue, separator, elbow, desulfurizer, blower fan and chimney constitute.It is characterized in that: described high-pressure hydraulic pump is installed on the ground, feed pipe is connected with main frame, flue is connected on boiler and the separator, described recirculated water sprays high-pressure water mist after utilizing high-pressure hydraulic pump by feed pipe water to be squeezed into main frame, in flue, form negative pressure, drive air-flow and produce air quantity, the suction inner flue gas of the stove, play cooling and draw the phoenix effect, the high-pressure water mist that produces in flue can effectively be caught travel fatigue, alkalies physical efficiency dissolving in the water smoke simultaneously absorbs harmful substances such as a part of carbon dioxide, and flue gas enters in the separator by flue.The lower end of described cylindrical shell is a bullet, is provided with blow-off pipe below bullet.Air-flow and drop will become circular motion by rectilinear motion after flue gas enters in the separator by flue, the overwhelming majority of swirling eddy and drop along wall from cylinder twist, flow towards centrum downwards, dusty gas and drop produce centrifugal force at rotary course, the grit of relative density greater than gas got rid of to wall, just lose inertia force radially and by under momentum and downwards gravity run down into the ash discharge sedimentation basin along wall by blow-off pipe.Do not have the gas that purifies by under turn to and continue to do rotational flow, the dust of interior rotational gas flow part collection at large is discharged in the desulfurizer thus by elbow.Described separator and desulfurizer link together with bolt by first elbow, describedly be provided with venturi in desulfurizer inside, below venturi, be provided with spray system, below spray system, be provided with multitube, water-bath is arranged below desulfurizer, and described inside at moisture eliminator is provided with eddy flow plate, back-up ring and eddy flow plate, and second elbow on the desulfurizer is connected with air blower tube, blower fan is installed on the ground, and a side of air blower tube is connected with chimney.When the gas that does not have to purify by under turn to and continue to do rotational flow, the dust of interior rotational gas flow part collection at large is discharged in the desulfurizer back by entering venturi by elbow thus, fully mix at the high-pressure water mist of trunnion porch and nozzle ejection and to contact, gas speed increases gradually, the air-flow relative velocity is very big, under high velocity air impacts, the water droplet that liquid (operating) water nozzle before the Venturi tube throat goes out is by high atomisation, the high velocity, low pressure at throat place makes the air-flow state that reaches capacity, and the collision and the cohesion of fierceness take place between grit and water droplet or water droplet and the grit.After entering diffuser from trunnion, speed reduces, and static pressure gos up, with the grit be the coagulation of the saturated flue gas of the nuclei of condensation carry out very fast.Condensing has the particle of moisture to continue the cohesion collision, the granule cohesion also becomes bulky grain, enter the multitube water film dedusting stage with the flue gas about air-flow from tangential direction then, flue gas enters multitube and after the stage large tracts of land air-flow is divided into small size and passes on the multitube moisture film that the spray back forms and pour the waters.Because venturi is equipped with clear water spray system before the trunnion and two cover alkali lye spray systems and the multitube behind the trunnion cut apart air-flow moisture film system, so when flue dust is washed by water in the flue gas, SO ₂Also the alkali mist of defendant's speed atomizing absorbs, and makes the SO in the flue gas ₂In venturi, just contact with alkali lye in advance, thereby make SO in the flue gas ₂With alkali lye there is the reaction time fully.When flue gas pours the waters by multitube, dust granules is deposited in the water under the principle of gravitational settling, contact fully simultaneously with alkali lye from the alkali lye circulatory pool, under the interaction of gas-liquid, form the alkali lye boiling bed of 400-500 rice on the waters, possessing between the gas-liquid, length contacts with larger area.Flue gas passes the board-like desulfurization dust-removal system of air-flow that enters the positive and negative eddy flow plate of upper right quarter behind the waters, when flue gas enters two crack, utilize the air-flow guide effect of eddy flow plate and the upwards screw of flue gas self that the doctor solution on the eddy flow plate is dispelled, atomizes, make eddy flow plate top form one section desirable atomizing zone.The desulfurization absorption liquid exists with the droplet of tens microns sizes in this zone, has increased the gas-liquid contact area greatly, thereby guarantees the SO in the flue gas ₂Absorbed abundant dissolving by alkalescence and absorb, the original few flue dust of quantity is absorbed the liquid washing once more in the flue gas, thus higher dedusting and the desulfuration efficiency of acquisition.Flue gas after being purified enters dehydrator, utilize the centrifugal action of swirling eddy, droplets entrained in the air-flow got rid of around the dehydrator and remove the top that this dewater unit is contained in deduster, the eddy flow plate its role is to make gas to produce and rotatablely moves, center blind plate area do not increase power-assisted for dehydrator body sectional area 1/9th; Cone-shaped hood its role is to prevent that being rotated air-flow again along the liquid under the wall flow takes away; Back-up ring its role is to block and is rotated the drop that air-flow is carried secretly along wall, in order to avoid it is excessive, the demist rate of swivel plate reaches more than percent 96, if impeller eye gas speed is identical with the dehydrator body air-flow rate of climb in the dehydrator, dehumidification efficient is lower, for this reason, after the dehydration impeller, change diameter, air velocity is reduced can effectively improve dehydration dehumidification rate, dehumidifying device has adopted the making of double-deck positive and negative eddy flow board diameter increasing, has strengthened the physical life of blower fan.Desulfation dust-extraction device of the present utility model is to utilize multiple principle to design, thereby this installs not only dust-removal and desulfurizing efficient height, and characteristics such as compact conformation, easy to implement, simple to operate and applicability be wide.

Beneficial effect:

A kind of high-efficient desulfation dust-extraction device of the utility model adopts unique principle, be the comprehensive of multiple desulfurizing dust-collector, and with bionic principle, high-pressure water jet, the collection gravitational settling, inertial settling, absorption affinity, minute surface power, acoustic force produces liquid film absorption centrifugation, multistage washing continuously, the reaction desulfuration dedusting is in one in the multiple tracks, and special desulfurization demister, make it to have the desulfurization dust-removing efficiency height, the operating maintenance expense is low, and stable performance is simple to operate, liner is with special high temperature resistant, rub resistance, resistant material, long service life, blower fan is not with water during operation, to large-sized boiler, kiln has unique regulation effect.

Description of drawings:

Fig. 1 is a structure chart of the present utility model

Wherein: 1, recirculated water 2, high-pressure hydraulic pump 3, feed pipe 4, main frame 5, flue 6, separator 7, elbow 8, blow-off pipe 9, venturi 10, spray system 11, multitube 12, desulfurizer 13, moisture eliminator 14, airduct 15, eddy flow plate 16, water-bath 17, blower fan 18, chimney

The specific embodiment:

With reference to accompanying drawing the utility model is described further, it be by; Recirculated water 1, high-pressure hydraulic pump 2, feed pipe 3, main frame 4, flue 5, separator 6, elbow 7, desulfurizer 12, blower fan 17 and chimney 18 constitute.Described high-pressure hydraulic pump 2 is installed on the ground, feed pipe 3 is connected with main frame 4, flue 5 is connected on boiler and the separator 6, described separator 6 comprises: cylindrical shell 19, elbow 7, blow-off pipe 8 constitute, described separator 6 links together by first elbow, 7 usefulness bolts with desulfurizer 12, the lower end of described cylindrical shell 19 is a bullet, is provided with blow-off pipe 8 below bullet; Described desulfurizer 12 inside are provided with venturi 9, below venturi 9, be provided with spray system 10, below spray system 10, be provided with multitube 11, water-bath 16 is arranged below desulfurizer 12, described inside at moisture eliminator 13 is provided with eddy flow plate 15, back-up ring and eddy flow plate 15, second elbow 7 on the desulfurizer 12 is connected with blower fan 17, and blower fan 17 is installed on the ground, and a side of air blower tube is connected with chimney 18.

Claims (1)

1. high-efficient desulfation dust-extraction device, it is by recirculated water (1), high-pressure hydraulic pump (2), feed pipe (3), main frame (4), flue (5), separator (6), elbow (7), desulfurizer (12), blower fan (17) and chimney (18) constitute, it is characterized in that: described high-pressure hydraulic pump (2) is installed on the ground, feed pipe (3) is connected with main frame (4), flue (5) is connected on boiler and the separator (6), described separator (6) links together with bolt by first elbow (7) with desulfurizer (12), the lower end of described cylindrical shell (19) is a bullet, is provided with blow-off pipe (8) below bullet; Described desulfurizer (12) inside is provided with venturi (9), below venturi (9), be provided with spray system (10), below spray system (10), be provided with multitube (11), water-bath (16) is arranged below desulfurizer (12), described inside at moisture eliminator (13) is provided with eddy flow plate (15), back-up ring and eddy flow plate (15), second elbow (7) on the desulfurizer (12) is connected with blower fan (17), blower fan (17) is installed on the ground, and a side of air blower tube is connected with chimney (18).

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