CN2034867U - Floatable rear blowing dust collector - Google Patents
Floatable rear blowing dust collector Download PDFInfo
- Publication number
- CN2034867U CN2034867U CN 88204270 CN88204270U CN2034867U CN 2034867 U CN2034867 U CN 2034867U CN 88204270 CN88204270 CN 88204270 CN 88204270 U CN88204270 U CN 88204270U CN 2034867 U CN2034867 U CN 2034867U
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- cloth bag
- blowback
- bellows
- dust
- gas cleaning
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Abstract
The utility model belongs to air purifying dust removing equipment, comprising a shell, a blowback dust cleaning component, a bag filter component, a discharge component, etc. The utility model is characterized in that a blowback air box is flexibly linked in order to solve the problem of easy breaking of the blowback air box arm. The standard is enlarged with 248 cloth bags which are arranged around, and a cloth bag hanging pattern board adopts a steel plate splicing and welding structure. The utility model is suitable to purify the dust air drained in the milling process of cement manufacturing, and the drained dust containing quantity is lower than 150 mg/m+[3] with the one-month test operation of a model machine, which is coincided with the requirement of the national standard.
Description
The utility model belongs to the separation equipment of physical method, relates to the device structure of purifying and dedusting.
Along with the develop rapidly that the Chinese society doctrine is built, cement industry is produced and is also grown steadily.Also higher from point of view of environment protection to the dedusting of cement production process, the requirement of gathering dust.Require the dust laden air discharge standard should be lower than 150mg/m according to the China environmental protection method
3And reach 20～35g/m in the dustiness of cement grinding system discharged air
3, then need the efficient of purifying dust-removing device should be more than 99%.For adapting to this needs, the purifying and dedusting equipment of bagroom formula comes into one's own and develops rapidly in the prior art.The beginning of the eighties, Japan released swinging reverse gas cleaning bagroom, its better dust removal effect.The mid-80 China cement industry begins to promote the use of above-mentioned type, is called FD series rotary counter-blowing deashing cloth dirt device, to ending FD series of products maximum specification at present for being provided with 148 cloth bags.Filter area is 510m
2Owing to have certain problem on the structural design: influence work quality as the blowback bellows arm frangibility of rigidity or because of excesssive gap leaks out; Its 148 cloth bags are three circle annular array in the body that gathers dust in addition, and the card diameter of dossal bag is 3.5 meters, and this card is for needing mach large-scale thin plate foundry goods, if enlarge specification again, because of difficulty of processing greatly then cost need to rise significantly; The extension bag mode of the bagroom of this design is unreasonable in addition, dismounting cloth bag difficulty, and the breakage rate of cloth bag is high.
The purpose of this utility model is for solving above-mentioned blowback bellows arm frangibility, further improving dust-collecting efficiency and hang problems such as bag card difficulty of processing is big when increasing specification again, and the spy provides a kind of novel floating type reverse gas cleaning bagroom.Its blowback bellows intend adopting flexible the connection; It hangs the structural shape that the bag card intends adopting the steel plate welding.
By as above design, floating type reverse gas cleaning bagroom provided by the utility model is by housing, the anti-blow cleaning dust device, the cloth bag filter, the spiral lifting device of drawing mechanism and top cover is formed, its concrete feature is that the blowback bellows of its reverse gas cleaning device adopt flexible the connection, its this device is the hollow shaft that is driven the conveying reverse gas cleaning wind of rotation by motor through decelerator, two blowback bellows drag struts, a plurality of connecting rods, four blowback bellows, flexible connecting tube composition between air-supply hollow shaft air outlet and blowback bellows and between two bellows, its hollow shaft with two bearings on the top cover of housing, the bottom of hollow shaft is provided with two air outlets on 180 ° rightabout, the lower end of hollow shaft is by the be fixedly connected drag strut of two blowback bellows of 180 ° rightabout, this drag strut is than the bellows that drag super previous distance on direction of rotation, and drag strut affects bellows by hinge and connecting rod.By four circle circular array, be made up of cloth bag and bracing frame, last extension bag card and lower face plate by its cloth bag filter in the body that gathers dust for the cloth bag of the cloth bag filter of this equipment.It is on the fan-shaped bracing frame that its cloth bag is enclosed within the cross section, and the upper end is contained in and hangs on the bag card, and the lower end is inserted in the hole of lower face plate.The extension bag card of this equipment is the structure that adopts the welding of three block plates, enlarges the problem that specification solves difficult processing to adapt to.
Be to adopt rubber hose to connect between hollow shaft air outlet in the anti-blow cleaning dust device of this floating type reverse gas cleaning bagroom and the blowback bellows.The cloth bag of its cloth bag filter is to adopt the leno cellular of terylene 208 single-side piles to make.The cloth bag of this cloth envelop collector is four circle annular array in dust-precipitator, the number of every circle is 90,70,5127, and the cross sectional shape size of each cloth bag is identical.
The procedure of cement is that required various raw materials are prepared by proper proportion, and through sintering clinker into, chamotte powder being broken into ball mill through powder-grinding process can be by the powder of 4900 hole/square centimeter dusting covers, the i.e. cement of finished product again.The mobile wind that 1 meter per second should be arranged in the machine in the grinding program, in this wind, be entrained with a large amount of dust, this just must experience the once high efficiency dedusting process of gathering dust, otherwise will cause the serious environmental pollution, and the dust of accepting is exactly the cement of finished product.
The reverse gas cleaning bagroom of the FD series of promoting in the mid-80 China is the structural principle that adopts the bagroom that Japan releases.It is formed (seeing Fig. 9 and Fig. 1) by housing, inverted ventilation deashing device cloth bag filter, drawing mechanism.The cloth bag of its filtration is enclosed within on the cloth bag bracket of sector crosssection, and the upper open end of cloth bag hangs on the bag upper face plate, and the lower end is tightened sealing and is inserted in the hole of lower face plate.Upper face plate is divided into two parts up and down with the inside of housing, and the side of housing tangentially is provided with air inlet, and the side top, top cover that hangs the bag card is provided with the outlet of filtering back gas, is provided with drawing mechanism under the awl of housing.The anti-blow cleaning dust device also is housed on top cover.In the centre of top cover rotating hollow shaft is arranged, the malleation wind regime of its external blowback, each blowback bellows is delivered to through air outlet in the bottom, and each blowback bellows is aimed at the suitable for reading of some cloth bags that a kind of diameter distributes, and hollow shaft is done to rotate very slowly through the motor rear drive of slowing down.
Cause the negative pressure of 400 millimeters of water in the dust-precipitator during work with air-introduced machine, the wind that contains high concentrate dust in the grinding program is introduced by the inlet of dust-precipitator side, see through the inner chamber that cloth bag enters top cover, discharge from air outlet, the dust of this moment 99% is delayed at the outside of cloth bag.The dust of staying on the cloth bag descends the air penetrability of cloth bag.At this moment slowly rotate the suitable for reading of filtration cloth bag that the blowback bellows will aim at and shut, stop the negative pressure in the cloth bag and the work of filtration, be blown into the wind of 500 millimeters of water of malleation, cloth bag experienced by negative pressure to 0, again to the variation of malleation in moment, cloth bag is under strong impact shake and blowback wind action, dust breaks away from from the cloth bag surface, falls at the bottom of the awl of dust-precipitator bottom, discharges through drawing mechanism.Hollow shaft drags bellows and rotates slowly, and the dust that each cloth bag surface stops is cleared up in blowback one by one, makes each cloth bag experience the cyclic program of filtration and reverse gas cleaning regularly.
There are several problems in the reverse gas cleaning bagroom of original FD series: blowback bellows arm frangibility or reduce the effect of deashing because of the blowback bellows leak out with the excesssive gap of hanging the bag card, its reason is that the center line of rotating hollow shaft is not enough with the perpendicularity of hanging bag card surface.And blowback bellows arm is a rigid attachment, on one side movement interference occurs when rotating, frangibility forwards other half-turn to and the gap of leaking out then occurs; Its extension bag card is to need mach large-scale thin plate foundry goods, and the dust-precipitator capacity of FD-148 is also disliked inadequately at present, and then difficulty of processing is just bigger to strengthen specification again.The design of this programme has overcome above-mentioned shortcoming fully.The blowback bellows are that flexible pipe connects with hollow shaft, the structure that adds sealing ring between the bellows with metal tube, also allow to occur the relative motion of certain limit, and bellows drag through hinge and connecting rod by drag strut, so formed the floating top motion state that is attached between bellows and the card.Make its bottom surface and hang the driving fit of bag card by bellows deadweights, improved the quality that component life has also improved reverse gas cleaning.Because bellows float on the card, so the surface irregularity of card integral body is required and can reduce, can exempt the necessary machined of former promising reduction unevenness, possibility is provided for the increase specification.Hanging the bag card among the design is the structure that adopts the steel plate welding.
The FD series of products of the technical program and prior art specific energy mutually embody following advantage:
1, its processability of product structure is good, adopts flexible the connection to solve blowback bellows arm problem easy to break, has reduced the requirement of machining accuracy, has reduced manufacturing cost; 2, improved work quality, bellows become quick condition with an extension bag card, are to flexibly connect with drag strut, problem of leaking out very close to each other, and the cloth bag ash-removal effect is good; 3, improve structure and made and to increase specification, improved the operating efficiency of equipment; 4, reasonable in design, fault rate descends, and reduces service work, the driving rate height.
Description of drawings:
Fig. 1 is the structural representation of the floating type reverse gas cleaning bagroom of this programme.
Fig. 2 is the top view of Fig. 1.Wherein: (1) filters gas vent; (2) blowback wind regime; (3) top cover; (4) deashing device; (5) top cover spiral lifting device; (6) cloth bag; (7) air intake vent; (8) housing; (9) the awl end; (10) drawing mechanism.
Fig. 3 is the structural representation of reverse gas cleaning device.
Fig. 4 is the A-A partial view among Fig. 3.
Fig. 5 is the B-B cutaway view among Fig. 4.
Fig. 6 is the C-C cutaway view among Fig. 4.Wherein: (11) deashing wind inlet; (12) motor and cycloidal reducer; (13) hollow shaft; (14) hose; (15) drag strut; (16) blowback bellows; (17) hinge; (18) connecting rod; (19) intermediate connection tube; (20) sealing ring.
Fig. 7 is a front view of hanging the bag card.
Fig. 8 is the scheme of installation of cloth bag on card.
Fig. 9 is the structural representation of 148 bags of back flushing type dust-precipitators of former FD series.
Embodiment:
The floating type reverse gas cleaning bagroom of embodiment called after TC4-238 type of this programme.It establishes 238 of cloth bags, is four circle annular array.Dust-precipitator body section diameter is 4.5 meters, and is high 11 meters.Reverse gas cleaning device per minute changes 0.3 circle, and cloth bag adopts 208 terylene single-side piles, 820 meters of filter areas
2, per hour ventilation volume is 4000 meters
3, efficiency of dust collection reaches 99%.Hang the bag card and adopt three splicings of 10 millimeters thick steel plates.Measured dust exhausting concentration at 150mg/m in one month through the model machine trial run
3Below, the output of cement increases by 10%, and working stability is reliable.
Claims (4)
1, a kind of for the filter of air cleaning dedusting, be specially adapted to the dust removal by ventilation equipment of the grinding system of manufacture of cement--floating type reverse gas cleaning bagroom, it is put institute by the spiral lifting device of housing, reverse gas cleaning device, cloth bag filter, drawing mechanism and top cover and forms, it is characterized in that: the structure that the employing of the blowback bellows of its anti-blow cleaning dust device flexibly connects.Its anti-blow cleaning dust device is the hollow shaft by the conveying reverse gas cleaning wind of power drive rotation, two blowback bellows drag struts, a plurality of connecting rods, four blowback bellows, flexible connecting tube composition between air-supply hollow shaft air outlet and blowback bellows and between the two blowback bellows, its hollow shaft with two bearings on the housing top cover, the hollow shaft bottom is provided with two air outlets on 180 ° rightabout, the lower end of hollow shaft is by 180 ° interval, two the blowback bellows drag struts that are fixedly connected in the opposite direction, this drag strut ratio drags bellows super previous distance on direction of rotation, and drag strut affects the blowback bellows by hinge and connecting rod;
The cloth bag of its cloth bag filter is the annular array of four circles in the body that gathers dust, its cloth bag filter is made up of cloth bag and bracing frame, dossal bag upper face plate and lower face plate.It is on the fan-shaped bracing frame that its cloth bag is enclosed within the cross section.The upper end is contained in and hangs on the bag upper face plate, and the lower end is supported on the lower face plate;
Its extension bag upper face plate is to adopt the steel plate welded structure.
2, according to the described floating type reverse gas cleaning bagroom of claim 1, it is characterized in that it anti-blow cleaning dust device hollow mandrel air outlet and the blowback bellows between be adopt rubber hose to connect, and the mode that adopts metal tube to add sealing ring between the blowback bellows connects.
3, according to the described floating type reverse gas cleaning bagroom of claim 1, the cloth bag that it is characterized in that its cloth bag filter is to adopt the leno cellular of terylene 208 single-side piles to make.
4, according to the described floating type reverse gas cleaning bagroom of claim 1, it is characterized in that the cloth bag of its cloth bag filter is four circle annular array in the body that gathers dust, the number of every circle is 90,70,51,27.The cross sectional shape size of each bag is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88204270 CN2034867U (en) | 1988-04-23 | 1988-04-23 | Floatable rear blowing dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88204270 CN2034867U (en) | 1988-04-23 | 1988-04-23 | Floatable rear blowing dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2034867U true CN2034867U (en) | 1989-03-29 |
Family
ID=4838911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88204270 Expired - Lifetime CN2034867U (en) | 1988-04-23 | 1988-04-23 | Floatable rear blowing dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2034867U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100577260C (en) * | 2004-08-05 | 2010-01-06 | 帕克汉尼芬有限公司 | Filter element |
| CN107694916A (en) * | 2017-11-22 | 2018-02-16 | 遵义香山矿业有限公司 | A kind of bauxite device for vibration screening |
| CN109200806A (en) * | 2018-09-13 | 2019-01-15 | 佛山市禾才科技服务有限公司 | The multifunctional air purifying equipment of convertible working condition |
-
1988
- 1988-04-23 CN CN 88204270 patent/CN2034867U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100577260C (en) * | 2004-08-05 | 2010-01-06 | 帕克汉尼芬有限公司 | Filter element |
| CN107694916A (en) * | 2017-11-22 | 2018-02-16 | 遵义香山矿业有限公司 | A kind of bauxite device for vibration screening |
| CN109200806A (en) * | 2018-09-13 | 2019-01-15 | 佛山市禾才科技服务有限公司 | The multifunctional air purifying equipment of convertible working condition |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |