CN2439315Y - Wet type sulphur removing and dust removing apparatus - Google Patents

Abstract

The utility model relates to a wet type desulfurizing and dust removing apparatus, which is composed of an inner and an outer cylinders, wherein the top of the outer cylinder is provided with a smoke inlet and the bottom is provided with an ash discharging pipe; the lower part of the inner cylinder is provided with an opening and the top is provided with a tapered flow guiding cover. A cyclone is provided with a tangential opening along the side wall of the inner cylinder; the inner side part is communicated with the inner cylinder, and a baffle plate arranged under the cyclone separates the inner cylinder into an upper and a lower parts. A water pipe which passes through the outer cylinder and a cavity between the cyclone and the baffle plate extends into the inner cylinder, and the end part of the water pipe is provided with a spray head. The lower end of the inner cylinder is provided with a water collecting ring; the upper part of the water collecting ring is an opening, and the lower part is connected with an ash falling pipe. A circle of water baffle plate is arranged on the inner wall of the outer cylinder, flow return pipes are arranged on the wall of the outer cylinder under the water baffle plate; a smoke outlet is arranged on the outer wall of the outer cylinder along a tangential direction, and the smoke outlet is positioned between the baffle plate and the water baffle plate. Thereby, the desulfurizing and dust removing effects can be effectively increased, and the discharged smoke containing water is prevented.

Description

A kind of wet type desulfurizing dust collector

The utility model relates to the wet type desulfurizing dust collector that a kind of desulfurating dust-removing equipment that is used for Industrial Boiler, particularly evaporation capacity use on 1 ton/hour-6 tons/hour Industrial Boiler.

The wet type desulfurizing dust collector of Shi Yonging adopts the evolute structure more in the market, and flue gas enters along the tangential direction of urceolus, forms rotation, and contact with water and to carry out desulfurization and dedusting, then by upwards discharge of inner core.Because the effect of air-introduced machine, inner core top form big suction, make part moisture have little time to be attached on the inner core, just are discharged in the atmosphere, cause environmental pollution.Simultaneously, acid aqueous vapor has caused corrosion to follow-up equipments such as air-introduced machine and chimneys, has influenced the service life of equipment.

The purpose of this utility model provides a kind of wet type desulfurizing dust collector that is used for Industrial Boiler, and this desulfurizing dust-collector can effectively overcome the problem of smoke evacuation band water.

To achieve these goals, the utility model is made up of inner core and urceolus, there is into mouth the centre at urceolus top, the bottom is an ash releasing tube, the lower openings of inner core, its special feature is that the top of inner core is a kuppe, be pyramidal structure, be positioned at the into below of mouth, the lower limb of kuppe has whirlwind, along the sidewall direction opening, inside part communicates with inner core, and a circle dividing plate is arranged below whirlwind, will in, be divided into not connected two parts up and down between the urceolus, a water pipe passes urceolus, whirlwind, stretch into interior tube inner chamber, there is spray head its end, and there is a circle collecting ring inner core inwall lower end, opening is arranged at the top of collecting ring, ash tube is arranged at the bottom, and a circle water fender is arranged on the madial wall of urceolus, on the water fender lower outside wall return duct is arranged, the urceolus external wall of upper portion tangentially has outlet flue, and this outlet flue is between dividing plate and water fender.

Above-mentioned wet type desulfurizing dust collector has the cast stone scuff-resistant coating on the inwall of inner core, there are an overflow pipe and a verify in the outer tube side wall lower end.

Adopt the wet type desulfurizing dust collector of said structure, because flue gas enters inner core along whirlwind and produces rotation for the first time, produce rotation for the second time by outlet flue tangential direction active force, by centrifugal action water droplet is got rid of to outer tube inner wall, block again by water fender and to flow back to the urceolus inner bottom part by return duct, it is few to make flue gas take moisture out of, has significantly reduced environmental pollution, has improved the desulfurization and dedusting effect; Reduced corrosion simultaneously, improved the service life of equipment follow-up equipments such as air-introduced machine and chimneys.

Below in conjunction with accompanying drawing the utility model is done a detailed explanation.

Fig. 1 is the structural representation of the utility model wet type desulfurizing dust collector.

Fig. 2 is the scheme of installation of the utility model wet type desulfurizing dust collector.

The utility model is made up of inner core (9) and urceolus (12).Urceolus (12) crown center has into mouth (3), and side wall lower ends has an overflow pipe (14) and a verify (15), and the bottom is an ash releasing tube (13).The lower openings of inner core (9), the top is positioned at the into below of mouth (3), be pyramidal structure, constitute kuppe (1), the bottom of kuppe (1) has 4 equally distributed whirlwind mouths is arranged above whirlwind (2), along sidewall radial direction opening, opening is a rectangle, and its inboard communicates with inner core, under the screw, one circle dividing plate (16) is arranged below whirlwind (2), will be divided into not connected two parts up and down between the inside and outside tube.A water pipe passes outer tube side wall, whirlwind (2), stretch into inner core central authorities, there is a spray head (4) its end, for reducing the wearing and tearing of flue dust to the inner core inwall, one deck scuff-resistant coating (8) is arranged on the inwall of inner core, and there is a circle collecting ring (10) lower end of scuff-resistant coating, opening in the upper end of collecting ring (10) 1/4 uncovered, communicate with inner core, the even vertical distribution in lower end 4 ash tubes (11).Ash tube upper end communicates with collecting ring, and ash releasing tube (13) is led in the lower end, also has one to enclose water fender (5) in the madial wall outlet flue bottom of urceolus, on the outer tube wall two return ducts (6) is arranged below the water fender, and this return duct passes outer tube side wall, leads to ash releasing tube (13).Tangentially have outlet flue (7) on the lateral wall, this outlet flue is positioned between dividing plate (16) and the water fender (5).

During work, flue gas by boiler (18), through economizer (19), enters wet type desulfurizing dust collector (21) along fume inlet passage (20) under the attraction of air-introduced machine (17).The pyramidal structure of kuppe (1) has reduced the resistance that flue gas enters whirlwind, flue gas successfully is rotated down along whirlwind enters inner core.At this moment, water in the water pipe is the ejection of water curtain shape along spray head, flue gas passes water curtain, soot particle in the flue gas absorbs moisture, increased soot particle weight, centrifugal force increases, and is got rid of to the inner core inwall by the turning effort of flue gas, the flue gas stream fragmentation that the while water curtain also is rotated is got rid of to the inner core inwall, has formed the flue gas washing function.The mixture of water and soot particle has formed moisture film on the inner core inwall, continue to contact soot particle and the SO that adsorbs in the flue gas with rotation flue gas stream ₂, finish the contact adsorption function.It is dirty along the rotation of inner core inwall that the turning effort of flue gas stream drives current, increased time of contact, strengthened the desulfurization and dedusting effect.Water ash mixture flows into collecting ring downwards, flows into ash releasing tube by ash tube under the drive of current.After flue gas rotated to the inner core lower end, current were blocked by collecting ring, and flue gas is then crossed collecting ring and upwards entered urceolus, realized that flue gas separated with the first time of water.Taken out the flue gas that draws by air-introduced machine under the outlet flue effect of tangential direction, rotate up along outer tube inner wall and move, form the secondary rotation.At this moment, the globule that remains in the flue gas because action of centrifugal force, is thrown on the outer tube inner wall, and rotates up mobilely at flue gas effect lower edge inwall, is blocked and return duct along water fender under flows back to ash releasing tube by water fender, realize the second time cigarette moisture from.Flue gas when being discharged by outlet flue, is not with moisture through twice dehydration basically, has guaranteed desulfurization and dedusting soil effect, has reduced atmosphere pollution.

Claims (2)

1. wet type desulfurizing dust collector, form by inner core (9) and urceolus (12), urceolus (12) crown center has into mouth (3), the bottom is ash releasing tube (13), the lower openings of inner core (9), it is characterized in that: the top of inner core (9) is a kuppe (1), be pyramidal structure, be positioned at the into below of mouth (3), whirlwind (2) is arranged under the edge of kuppe (1), at sidewall radial direction opening, rotation downwards, inside part communicates with inner core, one circle dividing plate (16) is arranged below whirlwind (2), in inciting somebody to action, be divided into not connected two parts up and down between the urceolus, a water pipe passes urceolus, whirlwind (2), stretch into interior tube inner chamber, there is spray head (4) its end, there is a circle collecting ring (10) lower end of inner core inwall (8), on the top of collecting ring (10) opening is arranged, and there is ash tube (11) lower end, one circle water fender (5) is arranged on the madial wall of urceolus, there are two return ducts (6) lower end of water fender (5) on outer wall, outer drum outer wall tangentially has outlet flue (7), and this outlet flue (7) is positioned between dividing plate (16) and the water fender (5).

2. wet type desulfurizing dust collector as claimed in claim 1 is characterized in that: cast stone scuff-resistant coating (8) is arranged on the inwall of inner core (9), and urceolus (12) side wall lower ends has an overflow pipe (14) and a verify (15).