CN201026439Y

CN201026439Y - High-efficiency desulfurizing dust-collector

Info

Publication number: CN201026439Y
Application number: CNU2007200346768U
Authority: CN
Inventors: 张殿坤; 程国良
Original assignee: ANHUI LONGSHAN ENVIRONMENT ENGINEERING Co Ltd
Current assignee: ANHUI LONGSHAN ENVIRONMENT ENGINEERING Co Ltd
Priority date: 2007-02-09
Filing date: 2007-02-09
Publication date: 2008-02-27
Anticipated expiration: 2017-02-09

Abstract

A desulphurization dust remover consists of a main cylinder (1) and an auxiliary cylinder (2) which consist of natural granites or are internally lined with natural granites and are serially connected, wherein, the desulphurization, the dust removing and the gas-water separation are realized in the main cylinder (1); the boiler smoke goes into the lower end of the main cylinder (1) from a venture smoke flue (3) and at the same time is pretreated by the atomized water in the smoke flue (3); the first desulphurization and dust removing of the pretreated smoke which swirls and rises in the main cylinder (1) is done by atomized alkali liquor which is atomized by an atomizer (13) and then the second desulphurization and dust removing are realized by a plurality of water curtains from a wet cyclone plate (11) and moisture is separated from the purified smoke by a gas-water separating device; the purified and dehumidified smoke is discharged by an induced draft fan to the chimney from an air outlet (7) in the lower end of the auxiliary cylinder (2) and desulphurization solutions and dust particles are discharged from a sewage discharge port (5) in the lower end of the main cylinder (1). The utility model with a compact structure can realize the dust removing efficiency of 99.5 per cent and the desulphurization efficiency of more than 90 per cent after going through pretreatment and secondary purification treatment.

Description

A kind of high-efficiency desulfurizing dust-collector

One, technical field

The utility model relates to a kind of flue purifier of boiler, exactly is a kind of high-efficiency desulfurizing dust-collector.

Two, background technology

The flue gas that fire coal or oil burning boiler and various Industrial Stoves produce all needs to discharge after the purified treatment.Concerning coal-burning boiler, contain sulphur (SO in the flue gas ₂), normally first static or bag-type dust are then by the limewash desulfurization.

Three, summary of the invention

The deduster that the utility model provides is intended to purify the flue gas, particularly coal-burning boiler of boiler, Industrial Stoves and the flue gas of kiln, and technical problem to be solved is that dedusting and desulfurization are finished in same device.

The technical solution of the utility model comprises cylindrical shell and air-introduced machine, and difference with the prior art is that described cylindrical shell is made of major and minor tube series connection the main tube and the secondary tube of natural granite or liner natural granite.Flue gas is introduced by the venturi type flue in main tube lower end, also is provided with sewage draining exit simultaneously; Secondary tube lower end has the gas outlet to be connected with chimney by air-introduced machine.Be provided with nozzle in the venturi type flue, make water fogging flue gas is carried out preliminary treatment and plays the cooling effect.Flue gas is become owner of in the tube through preliminary treatment is laggard, finishes the purification process of twice desulfurization, dedusting in main tube, realizes gas-water separation at last, purify, the flue gas after the dehumidifying under the air-introduced machine effect, from secondary tube lower end row to chimney.As shown in Figure 1.

In main tube, a stem stem is set.The effect of tube stem stem has three, one, match with a venturi type flue and a tube inwall force pretreated flue gas in tube around the post eddy flow; The 2nd, the mushroom cap by the setting of capital end constitutes gas and water separator with the dry type eddy flow plate of its below and the eaves that separates of top thereof, and the flue gas after desulfurization, the dedusting is dehumidified, and separates eaves and is fixed on main tube shoulder; The 3rd, be fixed with overflow launder on the stem stem, water overflows the back from overflow launder and forms complete column moisture film, and the eddy flow flue gas near cylinder is carried out desulfurization, dedusting, scrubs cylinder simultaneously, and the residual dirt that sticks on the cylinder is washed away.

Desulfurization, dust arrester in the main tube comprise atomizer, wet-type rotational flow plate.Atomizer is connected with alkali liquor pipe, and some nozzles by the center symmetry arrangement fully contact alkali lye atomizing and flue gas and realize exchange, droplet absorption SO ₂The dust granule of wrapped folder humidification makes it sedimentation simultaneously, realizes purifying for the first time; The wet-type rotational flow plate is identical with above-mentioned dry type eddy flow plate structure, all be to be assembled into the venetian blind type structure by blocks of sector, stop, the interception flue gas makes it constantly to change direction, to strengthen the effect of gas-liquid exchange and gas-water separation, why claim the wet-type rotational flow plate to be because moisture film and constantly dripping is arranged on it downwards, water is provided by main tube outer ring water pipe, uniform some outlet pipes are oblique on this annular conduit stretches in main tube, all outlet pipes are sprayed water simultaneously and are at first washed away main tube inwall, whirlpool down after turning back on the eddy flow plate and downward dripping formation a lot of cascade, further catch the SO of " slipping through the net " ₂And dust, realize purifying for the second time.The sewage draining exit of the drop of sedimentation, the autonomous tube of grit lower end is discharged.

Under twice effect of flue gas after being purified at gas and water separator, constantly collision, baffling, disturbance in the ascension process, it is separated from the gas that water smoke is condensed into water droplet, and the flue gas after purifying, dehumidifying enters secondary tube by level tube road.

Preprocessing process is as follows: enter main tube from flow through successively in venturi type flue converging transition, throat and divergent segment of the high-temperature flue gas of boiler (stove) outlet.Flue gas is realized exchange with atomized water simultaneously by speedup when throat, is lowered the temperature on the one hand, on the other hand part SO ₂Be absorbed, grit is wetted, enters the divergent segment flue gas and is decelerated, and impels drop and grit sedimentation.

The utility model compact conformation, detection show that flue gas reaches more than 70% through dust removal efficiency after the preliminary treatment, and desulfurization degree reaches more than 30%, and dust removal efficiency reaches 99.5% after double purification is handled, and desulfurization degree reaches more than 90%.

Four, description of drawings

Fig. 1. the workflow schematic diagram of this device

Fig. 2. main tube vertical section structure schematic diagram

Fig. 3. main tube A-A is to cross-sectional view, and signal venturi type flue is connected with main tube.

Fig. 4. lead tube B-B to cross-sectional view, the structure of signal atomizer.

Fig. 5. lead tube C-C to cross-sectional view, the structure of signal wet-type rotational flow device.

Fig. 6. main tube D-D is to cross-sectional view, the structure of the main tube of signal outer ring water pipe.

Fig. 7. lead tube E-E to cross-sectional view, the structure of signal dry type cyclone.

Five, the specific embodiment

1, getting Fujian product natural granite is material, and processing is built and built cylindrical shape master tube 1, secondary tube 2, venturi type flue 3 and a stem stem 4.Major and minor tube series connection.

Main tube 1 lower end is connected with flue 3, sewage draining exit 5 is arranged simultaneously, as shown in Figure 3.It is leg-of-mutton separation eaves 6 that 1 shoulder of main tube is fixed a ring cross-section, as shown in Figure 2.There is the gas outlet 7 that is connected with air-introduced machine secondary tube lower end, as shown in Figure 1.

Be provided with stainless steel atomizer 15 in the venturi type flue 3.As shown in Figure 2.

There is mushroom cap 8 on tube stem stem 4 tops, are circular cone and rounding platform combined shaped.Be fixed with the overflow launder 9 that stainless steel is made on the tube stem stem 4.As shown in Figure 2.

2, get two blocks of venetian blind type eddy flow plates of corrosion resistant plate processing, a below of 8 that is arranged on mushroom cap claims dry type eddy flow plate 10, as shown in Figure 7.Dry type eddy flow plate 10 and mushroom cap 8 with separate eaves 6 and constitute gas and water separators; Another piece is arranged on the below of overflow launder 9, and title wet-type rotational flow plate 11 as shown in Figure 5, cooperates formation desulfurization for the second time, dedusting and purifying device with the annular water pipe 12 of the stainless steel outside the main tube 1; Annular conduit 12 is evenly equipped with nine oblique putting in the main tube 1 of outlet pipe as shown in Figure 6 on it.

3, get stainless steel tube and stainless steel nozzle processing atomizer 13, as shown in Figure 4.24 nozzle center are symmetrically distributed at grade, and atomizer 13 is connected with alkali liquor pipe 14, form desulfurization for the first time, dedusting and purifying device.

Start air-introduced machine, it is pretreated first to enter venturi type flue 3 from the high-temperature flue gas of boiler (stove) outlet, rotate into simultaneously in the main tube 1, flue gas eddy flow in main tube 1 rises, handled by twice desulfurization, udst separation successively, dehumidified by gas and water separator then after level tube road enters in the secondary tube 2, at last from the gas outlet 7 through air-introduced machine row to chimney.The waste liquid of sedimentation, waste residue are discharged from sewage draining exit 5.

Claims

1. high-efficiency desulfurizing dust-collector, comprise cylindrical shell and air-introduced machine, it is characterized in that: described cylindrical shell is made of natural granite or liner natural granite and main tin (1) and secondary tube (2) series connection, main tube (1) lower end is connected with venturi type flue (3) and is provided with sewage draining exit (5), and there is gas outlet (7) secondary tube (2) lower end; Be provided with atomizer (15) in the venturi type flue (3); Main tube (1) tube shoulder is fixed with and separates eaves (6), is provided with a stem stem (4) in the main tube (1), and there is mushroom cap (8) on its end top, is fixed with overflow launder (9) on the tube stem stem (4); Being positioned at overflow launder (9) top has dry type eddy flow plate (10), and being positioned at overflow launder (9) below has wet-type rotational flow plate (11), and wet-type rotational flow plate (11) matches with annular conduit (12) outside the main tube (1); Being positioned at wet-type rotational flow plate (11) below has atomizer (13), and atomizer (13) is connected with alkali liquor pipe (14).