CN205659529U - Metal filter bag electrostatic fabric filter - Google Patents

Abstract

The utility model discloses a metal filter bag electrostatic fabric filter, its filter bag are the metal filter bag, just the inside of metal filter bag is equipped with the negative pole, the negative pole with the metal filter bag forms electrostatic fabric filter's the electric field district of gathering dust. The utility model discloses both had regarded as traditional filter bag to use the metal filter bag ingeniously, had still used as the positive pole simultaneously, make full use of the effective space realized the integration of electric precipitation and pocket type dust removal, so, the electrostatic fabric filter who sets up this metal filter bag compares in traditional structure, has practiced thrift area, has higher dust collection efficiency, and traditional electrostatic fabric filter removes dust the electric precipitation and separates in two independent spaces with the filter bag, is provided with preceding stage electric field district and back level filter bag district, and not only area is great, and smoke resistance is great, and the design of this scheme integration has also reduced smoke resistance simultaneously.

Description

A kind of metal filter bag electric-bag complex dust collector

Technical field

This utility model relates to cleaner unit technical field, is specifically related to a kind of metal filter bag electric-bag complex dust collector.

Background technology

Having the cleaner unit of filter bag, its ultimate principle is that flue gas flows through filter bag, after the bag of filter bag filters, enters bag Internal portion, and discharge through bag mouth.

Electric-bag complex dust collector includes prime electric field and rear class filter bag, after prime electric field catches a part of granule, then through after Level filter bag is further filtered.Electrostatic fabric filter has higher efficiency of dust collection, and it is by electric cleaner and sack cleaner Combine, in an airtight space, realize electric field dedusting and dust removal by filtration, but, two distinct types of Cleaner unit flocks together, and necessarily causes cleaner unit entirety huge, system complex, and the problem that floor space is excessive there is no at present Effective means solves this problem.

In view of this, how to look for another way, reduce the volume of electric-bag complex dust collector, be that those skilled in the art urgently solve Technical problem certainly.

Utility model content

For solving above-mentioned technical problem, this utility model provides a kind of metal filter bag electric-bag complex dust collector, this cleaner unit Metal filter bag in be provided with negative electrode, form electric precipitation district with metal filter bag, thus reduce cleaner unit volume.

The metal filter bag electric-bag complex dust collector that this programme provides, including a bag dedusting area, the filter bag of described bag dedusting area is Metal filter bag, and the inside of described metal filter bag is provided with negative electrode, described negative electrode and described metal filter bag form described electricity bag and are combined The electric field dust collection section of cleaner unit.

Alternatively, described negative electrode is formed by corona bar；The lower section of described filter bag is provided with support beam, corresponding with each described filter bag Corona bar be supported in described support beam.

Alternatively, described metal filter bag includes at least two sections of filter bags being sequentially connected with along described metal filter bag length direction Section, the end of each described filter bag section is provided with connecting cylinder, to seal fixing with the connecting cylinder of adjacent described filter bag section.

Alternatively, the end of described filter bag section is provided with annular inner splint and annular external splint；Each described filter bag section bag body End seal is connected between the described annular inner splint of correspondence and described annular external splint；Described connecting cylinder is fixed on described ring Shape inner splint or described annular external splint.

Alternatively, the end of described bag body clamps and roll welding is between described annular inner splint and described annular external splint, Realization is tightly connected.

Alternatively, each described filter bag section also includes the skeleton supporting described bag body, and described skeleton is fixed in described annular Clamping plate or described annular external splint；Described skeleton includes some vertical muscle and ring muscle, and each described vertical muscle is all long along described metal filter bag Degree direction extends, and some described ring muscle are distributed along described length direction, and described vertical muscle is welded in described annular inner splint, described ring Muscle is welded in described vertical muscle.

Alternatively, connecting cylinder described in adjacent two, one is welded in the annular inner splint of corresponding filter bag section, and another one is welded in The annular external splint of corresponding filter bag section, connecting cylinder described in adjacent two is threaded.

Alternatively, described metal filter bag is positioned at filter bag section described in the first segment of bag mouth, and its annular external splint is fixed with can Card is placed on the bag head of bag filter tubesheet.

Alternatively, the bag body of described metal filter bag, ecto-entad is distributed three layers, and intermediate layer fibre diameter is less than outer layer Fibre diameter with internal layer.

Alternatively, described metal filter bag is positioned at filter bag section described in the first segment of bag mouth, is fixed with to block and is placed on cleaner unit The bag head of card；Described metal filter bag also includes that elastic piston ring, described elastic piston ring are located at described bag rostral wall and described card Between sidewall.

Metal filter bag electric-bag complex dust collector of the present utility model, both made metal filter bag as traditional filter bag dexterously With, the most also using as anode, i.e. bag dedusting area and electric precipitation district unites two into one, and takes full advantage of effective space and achieves Electric precipitation district and the integration in bag-type dusting district, thus save the space being separately provided electric precipitation district, so, the filter of this metal is set The electric-bag complex dust collector of bag, compared to traditional structure, has been saved floor space, has been had higher efficiency of dust collection；And, pass The electric-bag complex dust collector of system, separates electric precipitation and filter bag dedusting in two independent spaces, be provided with prime electric field region and Rear class filter bag district, not only floor space is relatively big, and flue gas resistance is relatively big, and the design of program integration decreases flue gas resistance simultaneously Power.

In a kind of detailed description of the invention, the metal filter bag of the present embodiment has multiple filter bag section, and is made by connecting cylinder The bag body of the filter bag obtaining segment design can be tightly connected, and i.e. provides a kind of practicable split type metal filter bag, makes Metal filter bag that must be longer also is able to install smoothly.The filter bag hop count amount that metal filter bag is concrete, can be according to actual total length, existing The factor designs such as field installation environment.

In a detailed description of the invention, the end seal of each described filter bag section bag body be connected to correspondence annular inner splint and Between annular external splint；Connecting cylinder is fixed on annular inner splint or annular external splint.Then the company of connecting cylinder and bag body is achieved Connect, and damage will not be caused in the end of bag body.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of specific embodiment of filter bag in the provided electrostatic fabric filter of this utility model.

Fig. 2 is the close-up schematic view of aminoacyl site in Fig. 1；

Fig. 3 is the structural representation of a filter bag section in Fig. 1；

Fig. 4-1 is the structural representation of skeleton in Fig. 1；

Fig. 4-2 is the top view of Fig. 4-1；

Fig. 5 is the close-up schematic view at B position in Fig. 1；

Fig. 6 is the structural representation of Fig. 5 Elastic piston ring；

Fig. 7 is the structural representation at another visual angle of Fig. 6；

Fig. 8 is shown by the structure being provided with corona bar in multiple metal filter bags in the provided electric-bag complex dust collector of this utility model It is intended to.

In Fig. 1-8, description of reference numerals is as follows:

1 bag of head；

2 elastic piston rings, 21 annular flange felts, 22 elastic rings, 23 surface felts；

3 filter bag sections, 31 annular external splints, 32 annular inner splint, 33 bags of bodies；

4 skeletons, 41 indulge muscle, 42 ring muscle；

5 connecting cylinders, 6 corona bars, 7 injection tubes, 71 nozzles, 8 support beams；

100 cards.

Detailed description of the invention

In order to make those skilled in the art be more fully understood that the technical solution of the utility model, below in conjunction with the accompanying drawings and tool The utility model is described in further detail for body embodiment.

Refer to Fig. 1, Fig. 1 show by the structure of a kind of specific embodiment of filter bag in the provided electrostatic fabric filter of this utility model It is intended to.

Filter bag in the present embodiment, for metal filter bag 30, connects along metal filter bag 30 length direction successively including at least two sections The filter bag section 3 connect, length direction i.e. above-below direction shown in Fig. 1, it is seen that this filter bag is overall is connected shape by some joint filter bag sections 3 Become.

Wherein, the end of each filter bag section 3 is additionally provided with connecting cylinder 5, to seal fixing with the connecting cylinder 5 of adjacent filter bag section 3.Can To understand, filter bag section 3 at least one end is provided with connecting cylinder 5, head and the tail is had to the filter bag section 3 of adjacent connecting cylinder 5, it is clear that two End is required to arrange connecting cylinder 5, and for the first segment being positioned at bag mouth and the final section filter bag section 3 being positioned at bag tail, first The head end of joint filter bag section 3 and the tail end of final section filter bag section 3 all need not connect other filter bag sections 3, are the most also no need for Connecting cylinder 5 is set.

Connecting cylinder 5 described in literary composition, for cartridge, therefore it can take the mode such as grafting, docking real with adjacent connecting cylinder 5 Now seal fixing, it is ensured that the integrity of metal filter bag 30 after series connection, in order to gas to be filtered all can be through the metal bag of filter bag section 3 Body 33 enters, it is achieved effectively filter.

In prior art, cloth bag is conventional filter bag material, but the efficiency of dust collection of this kind of filtering material is to a certain extent It is restricted；And filtering material is restricted with by the adaptability of filter medium, mainly show as high-temperature medium Adaptability and the compatibility with chemical mediator；It addition, the filter cloth non-refractory of cloth bag filter element, intensity is low, and service life is short.

Compared to cloth bag filter bag, the present embodiment uses metal filter bag 30, can be formed by stainless steel silk braiding, have dedusting effect The best, high temperature resistant, easy-to-clean ash, less energy consumption, the advantage of life-span length.Further, this metal filter bag 30 also has multiple filter bag section 3, and The bag body 33 being made the filter bag section 3 of segment design by connecting cylinder 5 can be tightly connected, and i.e. provides a kind of practicable point The metal filter bag 30 of body formula, had both possessed the premium properties of metal filter bag 30, and had had cloth bag concurrently because of segment design again and easily installed Advantage.Filter bag section 3 quantity that metal filter bag 30 is concrete, can be according to factor designs such as actual total length, in-site installation environment.

Specifically, refer to Fig. 2 and Fig. 3, Fig. 2 is the close-up schematic view of aminoacyl site in Fig. 1；Fig. 3 is a filter in Fig. 1 The structural representation of bag section 3.

Each filter bag section 3 end is specifically additionally provided with annular inner splint 32 and annular external splint 31, is equivalent to double tubular structure. The bag body 33 of metal filter bag 30 is made up of metal material, can be metal fiber felt.The end seal of bag body 33 is connected to annular Between inner splint 32 and annular external splint 31, as shown in Figure 2.Connecting cylinder 5 then can be fixed on outside annular inner splint 32 or annular Clamping plate 31, owing to clamping plate and connecting cylinder 5 are all ring-type, the two can ensure the seriality of tubular filter bag section 3 after connecting.

The end of bag body 33 can clamp and roll welding is between annular inner splint 32 and annular external splint 31, it is achieved the company of sealing Connect.Clamping roll welding, it is possible to achieve bag body 33 and the connection of clamping plate, but damage can't be caused in the end of bag body 33, then Achieve and connecting cylinder 5 is set in metal filter bag 30 end.It is appreciated that directly to be welded and fixed with connecting cylinder 5 by bag body 33 and is also Feasible.

Additionally, two adjacent connecting cylinders 5, one can be welded in the annular inner splint 32 of corresponding filter bag section 3, another one Can be welded in the annular external splint 31 of corresponding filter bag section 3, so, adjacent two connecting cylinders 5 have radial difference, then one is permissible Inserting another one, two connecting cylinders 5 are respectively provided with female thread, external screw thread, and the most adjacent two connecting cylinders 5 can realize threaded, Correspondingly seal fixing two adjacent filter bag sections 3.Threaded readily accessible, it is envisioned that the barrel at connecting cylinder 5 is arranged Sealing ring, it is also feasible for taking press-fit approach, it is apparent that threaded mode, dismounting is more convenient and connection more may be used Lean on.

The filter bag section 3 of this structure, when two ends are required to connect adjacent filter bag section 3, the two ends of this filter bag section 3 are respectively provided with even Connecing cylinder 5, fix with the annular inner splint 32 of corresponding end for one, another is solid with the annular external splint 31 of corresponding the other end Fixed.

Being so designed that, connecting cylinder 5 all can be designed as straight-tube shape, then adds female thread, external screw thread.Certainly, connect Cylinder 5 is both secured to annular external splint 31 or annular inner splint 32 is also feasible, now, and adjacent two connecting cylinders 5, one of them End need to be processed as path section, so as to insert another connecting cylinder 5 and be screwed.

Being appreciated that in such scheme, connecting cylinder 5 split is arranged at annular inner splint 32 or annular external splint 31, it is simple to The clamping of screw thread process and bag body 33 is installed；Indeed, it is possible to expect, connecting cylinder 5 can also be integrally formed at annular inner clip Plate 32 or annular external splint 31, i.e. for the end of a filter bag section 3, annular inner splint 32 or annular external splint 31 can be along filter bags The depth direction of section 3 extends certain length and forms connecting cylinder 5, to stretch out the annular external splint of certain length with adjacent filter bag section 3 31 or annular inner splints 32 connect.

For above-described embodiment, it is also possible to arrange the skeleton 4 of support pouches body 33.Please continue to refer to Fig. 2 and with reference to Fig. 4-1, 4-2, Fig. 4-1 is the structural representation of skeleton 4 in Fig. 1；Fig. 4-2 is the top view of Fig. 4-1.

Skeleton 4 can be fixed on annular inner splint 32 or annular external splint 31, it is preferable that is fixed in annular by skeleton 4 Clamping plate 32, so, the skeleton 4 after installation will be located in inside filter bag, and when gas flow filter bag to be filtered, skeleton 4 can play Supporting role effectively, improves the intensity of whole metal filter bag 30.

Internal in order to not hinder gas to be filtered to enter bag body 33, skeleton 4 specially includes some vertical muscle 41 and ring muscle 42 Fenestral fabric.Each vertical muscle 41 all extends along metal filter bag 30 length direction, and some ring muscle 42 are distributed the most along its length, vertical Muscle 41 is welded in annular inner splint 32, and ring muscle 42 is welded in vertical muscle 41.

The program has the following technical effect that: skeleton 4 and bag body 33 actually unitary design, during installation, and skeleton 4 and bag Body 33 can install the card to cleaner unit simultaneously, and without the most fixing skeleton 4；Skeleton 4 is welded in annular inner splint 32, it is not necessary to It is fixedly welded on bag body 33, thus avoids damage to the bag body 33 that metal material is made, it is ensured that filter effect.

Please continue to refer to Fig. 1 and combine Fig. 5 understand, Fig. 5 is the close-up schematic view at B position in Fig. 1.

For above-mentioned each scheme, the first segment filter bag section 3 of metal filter bag 30, it is towards the annular external splint of bag filter tubesheet 31, it is further fixed on blocking the bag 1 being placed on bag filter tubesheet, bag 1 can be fixedly welded on annular external splint 31, also will not It is damaged to bag body 33.The annular inner splint 32 of first segment filter bag section 3 head end is used for fixing skeleton 4, and annular external splint 31 is for solid Determining bag 1, the installation preferably achieving each parts is fixed, and does not the most affect the performance of bag body 33.

Specifically, metal filter bag 30 can also include that elastic piston ring 2, elastic piston ring 2 are located at bag 1 sidewall and card sidewall Between, as shown in Figure 5.

Please continue to refer to the structural representation that Fig. 6, Fig. 6 are Fig. 5 Elastic piston ring 2；Fig. 7 is the structure at another visual angle of Fig. 6 Schematic diagram.

Elastic piston ring 2 specifically includes elastic ring 22, annular flange felt 21 and surface felt 23, in figure, annular flange felt 21 Arrange and be attached at the outside of elastic ring 22 in the form of a ring, and the two ends up and down of annular flange felt 21 all outwards the most inwardly roll formation Crimping, surface felt 23 then overall parcel annular flange felt 21 and elastic ring 22, dispatch from the factory after molding.Elastic ring 22 can be by necessarily The circulus of the thin corrosion resistant plate rivet interlacement of width, glues with binding agent between annular flange felt 21 and elastic ring 22 Knot.

Annular flange felt 21 and surface felt 23 may each be with PPS fiber needled felt and PPS fiber base cloth as main material Shape through outer surface heat, singe, press polish, PPTE impregnating technique are made, and have good mechanical property, and longer use longevity Life.

Being sewn into shape between surface felt 23 package car when dispatching from the factory, in order to ensure sealing, surface felt 23 bottom straight section should have twice Seam seam, shown in described Fig. 6,45 ° of sidepiece lap segment Ying You tri-road seam seam, as it is shown in fig. 7, and require that crimping felt 21 is sewn on table Face felt 23 seam seam opposing face seam seam is staggered 180 °.

It addition, the metallic fiber bag body 33 in above-described embodiment, three-decker can be included, be followed successively by from outside to inside and meet dirt Face, intermediate layer and clean gas face, wherein the fibre diameter in dust-collecting face and clean gas face can be between 10um-30um, intermediate layer fiber Diameter can be between 5um-10um, and dust-collecting face fiber main filtration big dust particle has higher anti-wear performance, intermediate layer Fiber is cascade filtration, intercepts fine solid particle, and its interval rate is less, and clean gas face fiber contacts with neat stress, it is desirable to have relatively Good breathability, reduces flue gas resistance, therefore intermediate layer fibre diameter is less than outer layer and the fibre diameter of internal layer.Three-decker is formed One fine and close overall bag body 33, integral filter precision can reach 5um rank.

Finally, metal filter bag 30 installation process in above-described embodiment is as follows:

Elastic piston ring 2 is first put into the card hole of card 100, and the natural spread apart of elastic piston ring 2 realizes close with card hole Envelope connects；

Final section filter bag section 3 (including bag body 33 and skeleton 4) is from up to down put into elastic piston ring 2, then by inverse Second section filter bag section 3 is threadeded by annular connecting portion with final section filter bag section 3；

Repeat threaded step as above, until first segment filter bag section 3 enters in elastic piston ring 2, and bag 1 is buckled in On the end face of card, so far whole piece filter bag installs.

Above-described embodiment details the metal filter bag 30 of a kind of segment design, further below description one is had complex function Filter bag, this filter bag can use the metal filter bag 30 of above-mentioned segment design, it is also possible to is the metal filter bag of integral type.

As it has been described above, metal filter bag 30 can be formed by stainless steel silk braiding, there is good electric conductivity, refer to figure 8, by being provided with the structural representation of corona bar 6 in multiple metal filter bags 30 in the provided electric-bag complex dust collector of this utility model.

In this embodiment, negative electrode is formed by corona bar 6, it will be understood that negative electrode can also be other structures, such as cathode line Deng.As shown in Figure 8, the middle part of each metal filter bag 30 supports the corona bar 6 of a rigidity from bottom to top, and corona bar 6 can be with gold The inwall belonging to filter bag 30 forms non-uniform electric field, and the flue gas after metal filter bag 30 filters enters the inner core of metal filter bag 30, its There is also a small amount of fine solid particle, and the flue gas entered bottom metal filter bag 30 is without sock filtration, through electric field region After charged, dust is collected on metal filter bag 30 inwall and corona bar 6.

As can be seen from this embodiment, the most dexterously metal filter bag 30 was both used as traditional filter bag, the most also made For anode use, i.e. bag dedusting area and electric precipitation district unites two into one, take full advantage of effective space achieve electric precipitation district and The integration in bag-type dusting district, thus save the space being separately provided electric precipitation district, so, the electric bag of this metal filter bag 30 is set Complex dust collector, compared to traditional structure, has saved floor space, has higher efficiency of dust collection；And, traditional electric bag Complex dust collector, separates electric precipitation in two independent spaces with filter bag dedusting, is provided with prime electric field region and rear class filter bag District, not only floor space is relatively big, and flue gas resistance is relatively big, and the design of program integration decreases flue gas resistance simultaneously.

For this electric-bag complex dust collector, injection tube 7, the spray in injection tube 7 can be installed on the top of metal filter bag 30 Mouth 71 is directed at each metal filter bag 30 center, when, after dust collection a period of time, compressed air is passed through injection tube 7 by gas bag, passes through Nozzle 71 is injected into metal filter bag 30 inner core, and electric field region is carried out deashing.Prop up to this end, Fig. 8 is arranged below corona bar 6 The support beam 8 of support corona bar 6, a support beam 8 can support many corona bars 6, and such corona bar 6 fixed form will not be with Above-mentioned deashing device interference.

Below it is only preferred implementation of the present utility model, it is noted that for the ordinary skill people of the art For Yuan, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications Also should be regarded as protection domain of the present utility model.

Claims (9)

1. a metal filter bag electric-bag complex dust collector, including a bag dedusting area, it is characterised in that the filter bag of described bag dedusting area is Metal filter bag (30), and the inside of described metal filter bag (30) is provided with negative electrode, described negative electrode is formed with described metal filter bag (30) The electric field dust collection section of described electric-bag complex dust collector；Described metal filter bag (30) includes at least two sections along described metal filter bag (30) The filter bag section (3) that length direction is sequentially connected with, the end of each described filter bag section (3) is provided with connecting cylinder (5), with adjacent described filter The connecting cylinder (5) of bag section (3) seals fixing.

2. metal filter bag electric-bag complex dust collector as claimed in claim 1, it is characterised in that described negative electrode is by corona bar (6) Formed；The lower section of described filter bag is provided with support beam (8), and the corona bar (6) corresponding with each described filter bag is supported in described support beam (8)。

3. metal filter bag electric-bag complex dust collector as claimed in claim 1, it is characterised in that the end of described filter bag section (3) It is provided with annular inner splint (32) and annular external splint (31)；It is right that the end seal of each described filter bag section (3) bag body (33) is connected to Between described annular inner splint (32) and described annular external splint (31) answered；Described connecting cylinder (5) is fixed in described annular Clamping plate (32) or described annular external splint (31).

4. metal filter bag electric-bag complex dust collector as claimed in claim 3, it is characterised in that the end folder of described bag body (33) Hold and roll welding is between described annular inner splint (32) and described annular external splint (31), it is achieved be tightly connected.

5. metal filter bag electric-bag complex dust collector as claimed in claim 3, it is characterised in that each described filter bag section (3) is also wrapped Including the skeleton (4) supporting described bag body (33), described skeleton (4) is fixed on described annular inner splint (32) or described annular outer clip Plate (31)；Described skeleton (4) includes some vertical muscle (41) and ring muscle (42), and each described vertical muscle (41) is all long along described metal filter bag Degree direction extends, and some described ring muscle (42) are distributed along described length direction, and described vertical muscle (41) is welded in described annular inner clip Plate (32), described ring muscle (42) is welded in described vertical muscle (41).

6. the metal filter bag electric-bag complex dust collector as described in any one of claim 3-5, it is characterised in that connect described in adjacent two Connecing cylinder (5), one is welded in the annular inner splint (32) of corresponding filter bag section (3), and another one is welded in the ring of corresponding filter bag section (3) Shape external splint (31), described in adjacent two, connecting cylinder (5) is threaded.

7. the metal filter bag electric-bag complex dust collector as described in any one of claim 3-5, it is characterised in that described metal filter bag (30) being positioned at filter bag section (3) described in the first segment of bag mouth, its annular external splint (31) is fixed with to block and is placed on bag filter tubesheet (100) bag head (1).

8. the metal filter bag electric-bag complex dust collector as described in any one of claim 1-5, it is characterised in that described metal filter bag (30) bag body (33), ecto-entad is distributed three layers, and intermediate layer fibre diameter is less than outer layer and the fibre diameter of internal layer.

9. the metal filter bag electric-bag complex dust collector as described in any one of claim 1-5, it is characterised in that described metal filter bag (30) it is positioned at filter bag section (3) described in the first segment of bag mouth, is fixed with and can block the bag head (1) being placed on bag filter tubesheet (100)；Institute State metal filter bag (30) and also include that elastic piston ring (2), described elastic piston ring (2) are located at described bag rostral wall and described card (100) between sidewall.