CN201020415Y

CN201020415Y - Sedimentator

Info

Publication number: CN201020415Y
Application number: CNU2007200356401U
Authority: CN
Inventors: 赵克宇
Original assignee: HUANENG ENVIRONMENT PROTECTION ENGINEERING Co Ltd CHANGSHU
Current assignee: HUANENG ENVIRONMENT PROTECTION ENGINEERING Co Ltd CHANGSHU
Priority date: 2007-03-22
Filing date: 2007-03-22
Publication date: 2008-02-13
Anticipated expiration: 2017-03-22

Abstract

A centrifuger is used on a cyclone separating and dedusting device for the dedusting of the smoke gas of a sinter machine in the cokeoven plant of the steel enterprise and belongs to a technical field of environmental facility, comprising a rotational flow barrel and a centrifugal guide blade with a group of blades; wherein, the centrifugal guide blade is arranged at an upper end part in the rotational flow barrel. The upper end of the centrifugal guide blade body is a straight barrel, and the lower end is expanded into a trumpet body. The whole straight drum structural centrifugal guide blade body in the prior art is changed into the upper straight drum and partial trumpet body mode, so as to ensure the unconformity of the spaces among the blades on the body, thus, the flow is quickened through the action of the blades, and accordingly, the centrifugal force can be increased, so as to ensure that the cyclomatic numbers of convolution of dust particles can be increased and the dedusting efficiency can be improved.

Description

A kind of sedimentator

Technical field

The utility model relates to a kind of sedimentator, is used for steel enterprise sintering factory to the cyclonic separation cleaner that the flue gas of sintering machine carries out dedusting, belongs to technical field of environmental protection facilities.

Background technology

Centrifugal guide vane and eddy flow cylindrical shell constitute sedimentator, for sedimentator, can be seen in by China Patent No. 98226235.3, this patent is based on that the existing centrifugal guide vane of eddy flow cylindrical shell (claiming urceolus again) cavity volume upper end and the centrifugal conduit (symmetrical inner core) of will placing is made as one in the prior art, cause the maintenance and the maintenance of eddy flow cylindrical shell and clear up the situation that black dirt is made troubles, thereby visualized structure centrifugal guide vane and the combination of centrifugal conduit separate type.Because if centrifugal guide vane and centrifugal conduit are made as one, when whole or some eddy flow cylindrical shell of the sedimentator group that will constitute to being gathered by several sedimentators (a common cover cyclonic separation cleaner is placed with tens of to thousands of sedimentators) overhaul, change, when clearing up black dirt, because can't adopt directly dial remove centrifugal conduit for the maintainer come in and go out in the space that constitutes by upper and lower supporting plate to the eddy flow cylindrical shell overhaul, change, clear trowel used for plastering, unless open mounting plate, can increase workload and open mounting plate.So, the release of above-mentioned patented technology, can need not to open the mounting plate on the cyclone dust removal equipment and only need dial pointedly and remove centrifugal conduit and come in and go out for the maintainer and carry out corresponding operation in the space that constitutes by upper and lower supporting plate, help shortening duty cycle, ensure the maximizing efficiency of cleaner operation.And above-mentioned patented technology has also been done improvement to the eddy flow cylindrical shell, set up eddy flow cylindrical shell boss, need not when making the eddy flow cylindrical shell be installed on the bottom plate of cleaner auxiliary with filler in addition, for alleviating complete cyclone dust removal equipment and ensureing that the concentricity of eddy flow cylindrical shell and centrifugal conduit all has achievement.

Again, in Chinese patent application numbers 200620076634.6 and 200610096206.4, also related to sedimentator (patent claims cyclone), increased the blade quantity of centrifugal guide vane, and with the shaped design of blade is a watt shape, can make dust laden air through blade with the state of circling round enter the eddy flow cylindrical shell, no direct current wind exists, the circle round number of turns of dust laden air in the eddy flow cylindrical shell increased, prolonged air circling round the time in the eddy flow cylindrical shell, thus make airborne particle more in the eddy flow cylindrical shell sedimentation enter in the ash flue bucket.But, the applicant finds, the structure of the centrifugal guide vane in the above-mentioned patented technology scheme is unreasonable, mainly show as: the centrifugal guide vane body is straight barrel shape, the space is unanimous between the higher and lower levels between the blade, flow velocity becomes steadily after flue gas is through the blade effect, can't progressively accelerate flow velocity produces bigger centrifugal force and makes more dust granules separate in the eddy flow cylindrical shell sedimentation to enter ash flue bucket from flue gas, therefore causing more dust to be mixed in the flue gas discharges from centrifugal conduit, the cleaned air passes dustiness is still higher, and promptly efficiency of dust collection is not good enough.

Summary of the invention

Task of the present utility model is to provide a kind of flue gas that can make to obtain bigger centrifugal force through producing faster flow velocity behind the blade of centrifugal guide vane, uses making the dust granules sedimentator of sedimentation in the eddy flow cylindrical shell fully.

Task of the present utility model is finished like this, a kind of sedimentator, it comprises the centrifugal guide vane of eddy flow cylindrical shell and one group of blade of tool, centrifugal guide vane is located in the eddy flow cylindrical shell and is in the upper end port position of eddy flow cylindrical shell, the upper end of the body of described centrifugal guide vane is a straight barrel, and the expansion of straight barrel lower end is set as horn body.

Horn body described in the utility model is that export-oriented the expansion established.

The quantity of one group of blade described in the utility model is the 8-11 sheet.

The upper and lower of the spacing between the blade described in the utility model is different.

The utility model is owing to become the top straight barrel type and part horn body form with the body of the centrifugal guide vane of the whole straight barrel type structure in the prior art, can ensure that the space is inconsistent up and down between the blade that is combined on the body, flow velocity becomes quickening after flue gas is through the blade effect, thereby centrifugal force is increased, guarantee that the circle round number of turns of soot dust granule in the eddy flow cylindrical shell increases and improve dust removing effects.

Description of drawings

Figure 1 shows that the utility model is disposed at the application example figure on the complete cyclonic separation cleaner.

Fig. 2 is an example structure figure of the centrifugal guide vane of the utility model sedimentator.

The specific embodiment

See also Fig. 1 and please in conjunction with Fig. 2, provided the assembly relation of eddy flow cylindrical shell 1 with centrifugal guide vane 2 in Fig. 1, centrifugal guide vane 2 is located in the eddy flow cylindrical shell 1 and occupy the upper end port position of eddy flow cylindrical shell 1.Eddy flow cylindrical shell 1 top is expanded and to be provided with a flange 12, by this flange 12 whole eddy flow cylindrical shell 1 is arranged to default installing hole position on the bottom plate 5, and the lower end of eddy flow cylindrical shell 1 is narrow that contract and be the ash flue bucket 11 of taper, ash flue bucket 1 tool ash hole 111.

Blade 21 on the centrifugal guide vane 2 is illustrated as 8 (Fig. 2 is clear to be shown) in the present embodiment, but is not so limited, and for example can be 9 or 10 or 11.All blades 21 are tile shape substantially.The upper design of the body 22 of whole centrifugal guide vane 2 becomes the straight barrel shape, and the bottom forms to extending out the horn body of establishing 221, therefore the outer wall of whole body 22 constitutes a parabola, this shape just because of body 22, can make in conjunction with space between the blade on it 21 to occur changing, promptly upper and lower inconsistent.So flow velocity can progressively be accelerated to use the bigger centrifugal force of acquisition and makes more dust granules separate in eddy flow cylindrical shell 1 sedimentation to enter ash flue bucket 11 from flue gas after flue gas is through blade 21 effect.

Blade 21 preferably adopts loose tool one contour forming or claims casting to make shape with the combining of body 22 of centrifugal guide vane 2.When centrifugal guide vane 2 places eddy flow cylindrical shell 1 upper cavity by means of the blade flange 211 on each blade 21, it is the position, through hole aperture of eddy flow cylindrical shell 1, then the end face 212 of the blade 21 of centrifugal guide vane 2 just matches with the hole wall of the through hole of eddy flow cylindrical shell 1, ash-laden gas can only enter from the surface of blade 21, and then enter in the through hole of eddy flow cylindrical shell 1, and rotate, make flue dust in eddy flow cylindrical shell 1, sink to the ash flue bucket 11 of taper, drawn by ash hole 111, cleaned air passes is then drawn by wireway through hole 313 tops of centrifugal conduit 3 shown in Figure 1.

Please at length see Fig. 1, centrifugal conduit 3 inserts in the through hole 23 of centrifugal guide vane 2, extend the sealing shroud 41 that quantity equates with sedimentator quantity on the mounting plate 4 as complete cyclonic separation cleaner, the upper end port position of each sealing shroud 41 constitutes presser feet hook 411, be provided with gland 33 in the body extension of centrifugal conduit 3 adaptably with it, extend on the gland 33 and be useful on the presser feet 331 that matches with aforesaid presser feet hook 411.Owing to have cavity area between the outer wall of centrifugal conduit 3 and the inwall of sealing shroud 41, therefore can adopt airtight and watertight padding 32 to be filled up.Airtight and watertight padding preferable material described here is an alumina silicate.See (Fig. 1 shows) again, bottom at the wireway through hole 313 of centrifugal conduit 3 is provided with an air deflector 31, it is made of fixed body 311 and flow deflector 312, the function of this air deflector 31 is: in the process that air is derived by centrifugal conduit 3, can make and still have part to be mixed in airborne soot dust granule and to run into stopping of flow deflector 312 and fall into eddy flow cylindrical shell 1 again, force its ash hole 111 to be discharged, can improve efficiency of dust collection (really) effectively from the ash flue bucket 11 of the taper of eddy flow cylindrical shell 1 bottom.

The applicant sketches operation principle, effect by the blower fan of complete cyclonic separation cleaner, dusty gas (flue gas) is just from being entered by the upper and lower supporting plate 4 of cleaner, the opening part in 5 spaces that constituted, the blade 21 of the centrifugal guide vane 2 of the sedimentator of recommending through each the utility model that is constituted by eddy flow cylindrical shell 1 and centrifugal guide vane 2, enter then in each eddy flow cylindrical shell 1 and rotate, make flue dust or claim ash fall to get off, purify back gas and then draw through the wireway through hole 313 of centrifugal conduit 3 until discharging by ash hole 111.At a plurality of sintering plants the flue gas of sintering machine is carried out on the cyclonic separation cleaner of dedusting this use through sedimentator (this patent is called cyclone) that the applicant is recommended in the sedimentator of the utility model structure and prior art for example aforesaid 98226235.3; the result shows that efficiency of dust collection can further improve 7% and promptly reaches about 98%, therefore very helps the protection to environment.

Claims

1. sedimentator, it comprises the centrifugal guide vane (2) of eddy flow cylindrical shell (1) and one group of blade of tool (21), centrifugal guide vane (2) is located in the eddy flow cylindrical shell (1) and is in the upper end port position of eddy flow cylindrical shell (1), the upper end that it is characterized in that the body (22) of described centrifugal guide vane (2) is a straight barrel, and the expansion of straight barrel lower end is set as horn body (221).

2. a kind of sedimentator according to claim 1 is characterized in that export-oriented expansion of described horn body (221) establish.

3. a kind of sedimentator according to claim 1, the quantity that it is characterized in that described one group of blade (21) is the 8-11 sheet.

4. according to claim 1 or 3 described a kind of sedimentators, it is characterized in that the upper and lower of the spacing between the described blade (21) is different.