CN2299996Y

CN2299996Y - Fume remover for use in chimney

Info

Publication number: CN2299996Y
Application number: CN 97236323
Authority: CN
Inventors: 徐建元
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-11
Filing date: 1997-06-11
Publication date: 1998-12-09
Anticipated expiration: 2007-06-11

Abstract

The utility model relates to a dust remover for chimneys, particularly a dust remover combined with a chimney. The utility model is characterized in that an enlarged chimney cavity is arranged in a chimney section; a conical circulation cover whose cross section is larger than that of the chimney; the lower part of the conical circulation cover is provided with a hollow circular dust collection plate; the dust collection plate is inclined arranging; the periphery of the dust collection plate is just connected with the enlarged chimney cavity; the inner periphery is just connected with the chimney; the bottom end of the dust collection plate is provided with a dust discharging opening; a water showering device is arranged on an enlarged chimney wall. The utility model not only can effectively remove fume dust in fume gas, but also can absorb harmful gas in the removing fume gas. The utility model is especially suitable for the reformation of various existing life furnaces and small industrial furnaces.

Description

A kind of chimney dust collecting device

Utility model relates to a kind of chimney dust collecting device, and promptly chimney can be removed the chimney of flue dust in the flue gas in the smoke evacuation process.

Various fuel household stoves and industrial furnace chimney emission produce volume of smoke influences environment.Existing fume dust remover, more employing be to come the discharging flue gas is handled these flue gas ash removal treating apparatus, general complex structure by adding various soot processing devices, invest bigger, the difficult flue gas ash removal transformation that adapts to common household stove and back yard industry stove.The another kind of dust arrester that dust arrester and chimney are combined is that cyclone dust removal and chimney are combined as a whole as Chinese patent 90202521, but need disposes air-introduced machine in addition, has strengthened investment for trnasforming urban land.Chinese patent 93236550 is to set up conical hopper in the chimney emission mouth outside and place the straw hat container in the chimney top, form annular water curtain by being arranged on the many aperture spout water sprays of straw hat container bottom, grit and pernicious gas in the flue gas discharged in washing, reaches catharsis.But the shower water of this dust arrester enters body of heater by chimney easily, easily causes furnace temperature to descend, and to handle be in the chimney emission outside, causes processing not thorough easily.These still have is worth improved place.

The purpose of utility model is to overcome the deficiency of above-mentioned prior art, provides a kind of improved simple in structure, small investment, and treatment effect is good, and dust arrester is directly combined with chimney, more helps the chimney dust collecting device of existing chimney transformation.

For achieving the above object, utility model is former chimney to be done a distortion improve, and sets up a chimney chamber that enlarges as dust arrester on chimney.Specifically, the utility model chimney dust collecting device, comprise the lower stack section, it is characterized in that the described intersegmental chimney chamber that an expansion is arranged of lower stack of going up, enlarging in the chimney chamber has the blast fence big than the stack cross section, and there is the tilting collecting plate of a hollow and annular blast fence below, the collecting plate periphery with enlarge that chimney chamber kiss connects, kiss in interior week and connect with chimney, the collecting plate bottom is provided with dust-exhausting port, enlarges chimney chamber wall and is provided with water spray system.Like this when the flue gas that flows through rapidly during through the chimney chamber that enlarges, because the sudden enlargement in chimney chamber is directed at flue gas flow rate and slows down rapidly, some bigger soot dust granules are falling to combining on the collecting plate of inclination under the gravity effect because of the slowing down suddenly of flow velocity in the flue gas; Some less smokeshade are suspended state through the bump of blast fence, with flue dust collision in the rising flue gas, make particle gather to form bulky grain and fall.Add and be arranged on the spray head injection formation water curtain that enlarges on the perisporium of chimney chamber, the dust in flue gas particulate contacts with the water smoke that ejects, and more helps the accumulation of small dust in the flue gas, and fine dust knot is gathered and sedimentation.

Be further to improve the dust removing effects that separates of flue gas and flue dust, enlarge in the chimney chamber blast fence especially with taper circulation cover for well, the flue gas that rises like this stream clashes into taper circulation cover can form eddy flow, helps the separation of grit in the flue gas.Can set up annular retaining ring at a gulp on the taper circulation cover, wherein especially with the infundibulate back-up ring for well, the secondary that forms flue gas stops bump, helps small flue dust collision and gathers, to improve separating effect.(funnel) annular retaining ring top also can be provided with blast fence, wherein with taper circulation cover for well, clash into for three times that form flue gas, to increase the separation of gathering of fine dust.It is generally acknowledged that expansion chimney chamber is big than the expansion multiple of chimney, separating effect is all right; It is long more to enlarge the chimney chamber, and separating effect is good more; Blast fence progression is many in the expansion chimney chamber, good separating effect.The said water spray system of utility model comprises vaporific spray head and Flushing nozzle, and vaporific spray head mainly sprays mist, helps micronic dust to gather; The main crosswise jet of Flushing nozzle has certain pressure water, sticks to flue dust on the chimney wall in order to flushing, and a kind of Flushing nozzle preferably is the shower nozzle of twitching one's mouth, and can enlarge the flushing area like this.Whereabouts flue dust mud, accumulate in and come together in lowest part on the collecting plate, go in the water treating pond by the dust-exhausting port discharge currents and further handle, as filtering by filter such as cloth envelop collector, sedimentation basin precipitate and separate etc. are separated the drainage that obtains and can be done to continue to recycle.The effect of taper circulation cover, the one, form flue gas and stop, make the flue gas bump form eddy flow, help the separation of flue dust in the flue gas, thus pyramidal structure than surface plate for well; The 2nd, can stop top shower water than the stack cross section is big, the unlikely chimney that falls into.Tilting collecting plate can be the annular slab that is obliquely installed, and also can be annular helical structure, and for preventing the flue dust mud whereabouts chimney of shower water and whereabouts, the lower stack section should be stretched out collecting plate.The water spray system that enlarges chimney chamber perisporium can symmetry be pressed dress, also can be provided with by dress ringwise.

Further specify utility model structure and advantage below in conjunction with drawings and Examples, but drawings and Examples should be as placing restrictions on of the present utility model.

Fig. 1 is the utility model first example structure schematic diagram.

Fig. 2 is the utility model second example structure schematic diagram.

Embodiment 1: referring to Fig. 1, a chimney chamber 3 that enlarges is arranged on chimney hypomere 1, the chimney diameter is 1: 1.5～4 times with enlarging chimney chamber ratio, and its upper end links to each other with chimney epimere 7.In enlarging the chimney chamber, a taper circulation cover 4 big than the stack cross section arranged, there is a tilted-putted annular collecting plate 2 below, its periphery connects with expansion chimney chamber kiss, interior week connects with the stovepipe kiss, the collecting plate bottom is provided with dust-exhausting port 8, enlarges chimney chamber perisporium and is provided with vaporific spray head 5 and flushing water jet 6.The chimney hypomere stretches out collecting plate, rises up into the chimney chamber of expansion under the epimere.Flushing nozzle is the flat design.

Embodiment 2: referring to Fig. 2, as embodiment 1, taper circulation cover top also is provided with big buccal funnel annular retaining ring 9, and funnel annular retaining ring top is provided with taper circulation cover 10.For effectively utilizing shower water, each water spout toroidal helical is provided with.

Utility model is because the direct expansion chimney chamber that is provided for separating flue dust on chimney, be provided for the blast fence and the water spray system that separate in the chimney chamber again, not only can remove soot dust granule in the flue gas easily and effectively, and shower water also can absorb pernicious gas in the flue gas, reach simultaneously, remove pernicious gas in the flue gas in dedusting.The normal smoke evacuation of the less influence of utility model chimney dust collecting device is smooth and easy, do not need to increase separately air blast or blower unit, this dust arrester is simple in structure, more helps the transformation of existing chimney, it is low to have improvement cost, especially is fit to urban life stove and the dedusting of back yard industry kiln gas.

Claims

1, a kind of chimney dust collecting device, comprise the lower stack section, it is characterized in that the described intersegmental chimney chamber that an expansion is arranged of lower stack of going up, enlarge in the chimney chamber blast fence big than the stack cross section arranged, there is the tilting collecting plate of a hollow and annular blast fence below, the collecting plate periphery with enlarge that chimney chamber kiss connects, connect in interior week with the chimney kiss, the collecting plate bottom is provided with dust-exhausting port, expansion chimney chamber wall is provided with water spray system.

2,, it is characterized in that said blast fence is a taper circulation cover according to the described chimney dust collecting device of claim 1.

3,, it is characterized in that said expansion chimney chamber diameter is big 1.5～4 times than chimney according to the described chimney dust collecting device of claim 1.

4,, it is characterized in that there is an infundibulate annular retaining ring said taper circulation cover top according to claim 1,2 or 3 described chimney dust collecting devices.

5,, it is characterized in that said infundibulate annular retaining ring top also has a taper circulation cover according to the described chimney dust collecting device of claim 4.

6,, it is characterized in that said water spray system comprises vaporific spray head and Flushing nozzle according to the described chimney dust collecting device of claim 5.

7, according to the described chimney dust collecting device of claim 6, it is characterized in that said vaporific spray head and Flushing nozzle are crisscross arranged, wherein Flushing nozzle is above vaporific spray head.

8,, it is characterized in that said Flushing nozzle is the flat shower nozzle according to the described chimney dust collecting device of claim 7.