CN104740944B - Filtering device used for gas-solid separation - Google Patents
Filtering device used for gas-solid separation Download PDFInfo
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- CN104740944B CN104740944B CN201510154704.9A CN201510154704A CN104740944B CN 104740944 B CN104740944 B CN 104740944B CN 201510154704 A CN201510154704 A CN 201510154704A CN 104740944 B CN104740944 B CN 104740944B
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- filter bag
- filter
- bag
- defecator
- orifice plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/06—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material with means keeping the working surfaces flat
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a filtering device used for gas-solid separation. According to the device, the deformation capability of a filtering element is between that of a rigid filter pipe and that of a flexible filter bag, so that compared with the flexible filter bag, the service life of the filtering element is prolonged; and compared with the rigid filter pipe, the axial vibration is generated by the filtering element to reinforce ash cleaning. The filtering device comprises a box body; the box body is internally provided with a pore plate; a plurality of external filtering type filter bags are arrayed on the pore plate, and one end of each external filtering type filter bag is opened and the other end of each external filtering type filter bag is closed; the opening ends of the filter bags are mounted on the pore plate and the closed ends of the filter bags are connected with elastic traction devices for axially tensioning the filter bags; and the filter bags are further internally provided with inner supporting assemblies for elastically tensioning the whole bodies of the filter bags in the radial direction. The filter bags are in an axial and radial bidirectional stretching state under the common effect of the elastic traction devices and the inner supporting assemblies; and the deformation capability of the filter bags can represent the intermediate state between that of a rigid filter element and that of a flexible filter element.
Description
Technical field
The present invention relates to a kind of defecator, and in particular to a kind of defecator for gas solid separation.
Background technology
Field is separated by filtration in gas-solid, outside filtering type filter bag and outside filtering type ceramic screen pipe are conventional filter elements.It is so-called
" outside filtering type " refers to that gas to be filtered is permeated so as to realize the mistake that gas solid separation is purified from outside filter element to filter element interior
Filter mode.Generally comprise on filter apparatus configuration using outside filtering type filter bag and install in casing, casing abacus, arrange on orifice plate
The filter bag of multiple upper end opens and lower end closed is installed, the upper end of these filter bags is arranged on orifice plate, and the lower end of filter bag is hanging,
Some defecators are also equipped with and the bag cage of filter bag loose fit (only preventing flat in filter bag) in the inside of filter bag；It is located in casing
Orifice plate lower section for Primordial Qi room, positioned at orifice plate top be air-purifying chamber, casing be provided with Primordial Qi room conducting air inlet and with net gas
The air vent of room conducting；Casing top is additionally provided with the back-blowing device for carrying out recoil air-flow deashing to each filter bag.Using outer
The filter apparatus configuration of filter formula ceramic screen pipe is similar with said structure, differs primarily in that (and filter bag is chimney filter sheet as rigidity
It is flexible), chimney filter has no obvious radial contraction during filtration, therefore also without the structure similar with above-mentioned bag cage effect in chimney filter.
The defecator shortcoming of above-mentioned use outside filtering type filter bag be mainly back-blowing device generally must act on filter bag 0.1 to
0.8 MPa of high pressure recoil air-flow, not only high energy consumption, and also the air-flow ash-removal effect that recoils is also undesirable etc..For this purpose, the application
Applicant provides a kind of for gas solid separation in the application for a patent for invention document (calling list of references in the following text) of CN104028059A
Defecator, the device increased the elastic pulling device for making the axial tensioning of filter bag in the lower end of each filter bag, so, by anti-
When blowing apparatus implement recoil air-flow deashing to filter bag, filter bag first can the expanded radially under recoil airflow function so that filter bag
Lower end further tenses upwards elastic pulling device, and after the air-flow that recoils disappears, under the effect of elastic pulling device resilience force
Filter bag axial vibration, generation makes the shearing force of the particulate matter on filter bag surface from filter bag sur-face peeling, so as to improve to the clear of filter bag
Grey effect.In addition, also advocating not setting a bag cage in its filter bag in above-mentioned list of references, when filter bag length is shorter, only need to pass through
By filter bag axial tightening without carrying out other unnecessary supports to filter bag；When filter bag length is longer, can be in filter bag bag
Upper setting prevents flat ring.
Present inventor is noticed using the defecator of outside filtering type ceramic screen pipe because its chimney filter sheet is as firm
Property, therefore the chimney filter is filtering small with radial-deformation during blowback, the service life of chimney filter is higher, but, due to this
The elastic pulling device being difficult with defecator in list of references, therefore it is clear to strengthen that chimney filter can not be made to produce axial vibration
Ash；And on the other hand, although the defecator in list of references can be such that filter bag is axially tensioned and anti-by elastic pulling device
Chimney filter is set to produce axial vibration and aid in deashing when blowing, but filter bag still keeps in use certain " flexibility " state, filter
The radial-deformation of bag material is much higher than rigid chimney filter, so as to affect the service life of filter bag.In addition to the above-mentioned problems, applicant
Also list of references defecator actually used middle discovery, there is the sealed end of its filter bag and filter bag bottom in the defecator
The problems such as sealing effectiveness between lid is not good, filter bag assembles inconvenience in casing.
The content of the invention
The problem that the application each cannot be taken into account very well first against above-mentioned rigid chimney filter and flexible bag using advantage, carries
For a kind of defecator for gas solid separation, the deformability of filter element can be between rigid chimney filter and flexible filter in the device
Bag between, so as to both it is comparable in flexible bag improve filter element service life, and it is comparable in rigid chimney filter realize make
Filter element produces axial vibration to strengthen deashing.The present invention is secondly by for the sealing of filter bag in list of references and filter bag bottom
Sealing property is not good between end cap problem provide it is a kind of improve sealing property between its filter bag and end cover for gas-solid
Detached defecator.The present invention also provides a kind of more convenient filtration for gas solid separation of installation for making filter element
Device.
To solve above-mentioned first technical problem, the defecator for gas solid separation includes peace in casing, the casing
Equipped with orifice plate, arrangement on orifice plate is provided with the outside filtering type filter bag of multiple one end opens and other end closing, the opening of the filter bag
End is arranged on orifice plate, and the blind end of filter bag is connected with the elastic pulling device for making the filter bag axially be tensioned, elasticity drawing dress
Put connection and elastic tension is outer in filter bag and filter bag blind end and orifice plate is kept between the fixing component of setpoint distance, position in casing
In orifice plate inner side for Primordial Qi room, positioned at orifice plate outside be air-purifying chamber, casing be provided with Primordial Qi room conducting air inlet and with it is net
The air vent of air chamber conducting, casing is provided with the back-blowing device for carrying out recoil air-flow deashing to each filter bag, the filter bag
In be additionally provided with the inner support component for making the filter bag overall radial elastic tension.Under filtration condition, it is filtered above-mentioned defecator
Bag keeps axial elastic tension in the presence of elastic pulling device, meanwhile, described inner support component is from inside to outside acted on
Filter bag makes the filter bag keep radial elastic tensioning again, and filter bag is in axle under the collective effect of elastic pulling device and inner support component
To the biaxial tension state of, radial direction, at this moment, the deformability of filter bag is presented between rigid filter element and flexible filter element
Between intermediateness, during filtration only there is less radial deformation in filter bag, by back-blowing device to filter bag implement recoil air-flow
During deashing, the expanded radially that filter bag first can carry out more by a small margin under recoil airflow function, so that the lower end of filter bag is to enterprising
One step tenses elastic pulling device, and after the air-flow that recoils disappears, filter bag produces axle under the effect of elastic pulling device resilience force
To by a small margin and upper frequency vibration, generation promote to make the shearing force of the particulate matter on filter bag surface from filter bag sur-face peeling, from
And improve the ash-removal effect to filter bag.
The inner support component can have the cylindrical cage structure that is adapted with the inner chamber of filter bag, then the preferred cage
Big 0～the 1mm of internal diameter of the external diameter of shape structure than filter bag in naturalness.Above-mentioned cylindrical cage structure ensure that inner support group
Part and the contact area of filter bag, contribute to making filter bag realize the tensioning of " entirety " radial elastic；When the external diameter of cage structure compares filter bag
During the big 0～1mm of internal diameter in naturalness, the internal diameter of filter bag can also be further after filter bag is tensed by elastic pulling device
Reduce, internal diameter and the difference of cage structure external diameter of filter bag are further improved, it is ensured that the filter bag entirety footpath is made by cage structure
To elastic tension.The external diameter of above-mentioned cage structure can be more preferably internal diameter than filter bag in naturalness it is big by 0.2～
1mm。
To make filter bag to reach higher filtering accuracy to ensure its filter efficiency, preferable breathability can be reached again with
Filtration resistance is reduced, while can also be easy to carry out filter bag deashing, and ensures that filter bag does not relax under life-time service, this
The also further selection to filter bag Bag structure and its material of invention has carried out following improvement, i.e.,：Filter bag bag is included by height
The inner bag of intensity breathable fabric composition and the microporous filter thin film being closely attached on outer surface of liner, the longitudinal direction drawing of the inner bag
Stretch intensity >=520KN/m, transverse tensile strength >=380KN/m.By the above-mentioned inner bag being made up of High-strength air-permeable fabric and micropore
Filtration membrane united application, on the one hand benefits from higher tensile strength that High-strength air-permeable fabric possesses and is growing filter bag
Will not occur because of lasting tensioning under phase use condition lax, it is to avoid the decline and disappearance of filter bag axially and radially tensile force,
Prevent because of filter bag that axially and radially the decline of tensile force even disappears and causes filter bag radial-deformation to increase or/and swing；Separately
On the one hand because the part of filtration on filter bag is microporous filter thin film, inner bag rises and supports permeation functions, therefore filter bag can be same
When reach higher filtering accuracy and preferable breathability, deashing can be also easy in addition.
Microporous filter thin film suggestion can adopt to particle diameter for 0.1 to 0.12 micron of particulate matter rejection rate more than 99%
Eptfe membrane；The inner bag is then proposed with Woven glass cloth composition, and (for example Surface coating has PTFE base
The Woven glass cloth of lubrication enhanced protection layer is constituted)；The eptfe membrane heat is overlying on Woven glass cloth.Above-mentioned varicosity
Poly tetrafluoroethylene is that one kind passes through stretcher strain (i.e. the implication of " varicosity ") so as to form fiber on polytetrafluoroethylmaterial material
The film of shape blind hole.The characteristics of film itself has extremely strong hydrophobicity and does not glue ash, therefore be not likely to produce condensation and paste film phenomenon,
And the purifying regeneration of film can easily be realized by back-blowing device.In Woven glass cloth Surface coating PTFE base lubrication
After enhanced protection layer, on the one hand because PTFE base lubrication enhanced protection layer and eptfe membrane are on material
Proximity, therefore eptfe membrane more can be closely attached on Woven glass cloth；On the other hand due to polytetrafluoroethyl-ne
Thiazolinyl lubricates enhanced protection layer and enhancing and lubrication is served to glass fabric, therefore greatly improves the wear-resisting of glass fabric
Property, enhance inner bag service life.
The material of above-mentioned inner bag can be that Woven glass cloth ptfe emulsion or politef is mixed with graphite
Close immersion stain and baking and made by.But, liner material is preferably by glass fibre ptfe emulsion or polytetrafluoro
Ethylene and the mixed liquor of graphite impregnate and are woven as Woven glass cloth again after toasting and make.It is this first by glass fibre polytetrafluoro
Vac emulsion or politef impregnate with the mixed liquor of graphite, then are toasted, and are finally woven as the mode of Woven glass cloth, more
It is easy to ensure that made by Woven glass cloth there is preferable breathability, while also make PTFE base lubricate enhanced protection layer to glass
The cladding of fine fabric is more comprehensively thoroughly.Impregnated with the mixed liquor of graphite using politef, to be formed poly- four can be made
The lubricity (especially high temperature lubricating) of fluoride-based lubrication enhanced protection layer is more preferably.
As the further improvement to above-mentioned defecator, orifice-baffle support location structure is also equipped with the casing, should
At least two filter assemblies installation through-holes are disposed with orifice-baffle support location structure, on each filter assemblies installation through-hole
Correspondence is provided with one group of filter assemblies, and the filter assemblies include the orifice plate being connected with orifice-baffle support location structure removable seal
And the filter bag that multiple openings are connected through corresponding filter assemblies installation through-hole with the orifice plate.By above-mentioned improvement
Make to define at least two groups filter assemblies being detachably connected with the orifice-baffle support location structure respectively, each mistake in casing
Filter bag on filter component can be externally mounted on the orifice plate of the filter assemblies in advance in the casing of defecator, then again will dress
The orifice plate for having expired filter bag is connected with orifice-baffle support location structure in casing, so that filter assemblies are pacified with corresponding filter assemblies
Dress through hole adaptation, so can be in order to the assembling of defecator and maintenance.
Used as the another improvement to above-mentioned defecator, the filter bag blind end is provided with a rigid seal end cap, and this is close
End-blocking base portion center is provided with the drag hook being connected with elastic pulling device, and one end of end cover is connected with inner support component
It is integrated.The crucial part of this improved structure is to connect as one the end of end cover with inner support component, thus, interior
Support component can either be by filter bag radial positioning, further through being connected with end cover and axially position, so as in further limiting
Support component activity, reduces the relative friction between inner support component and filter bag, improves the service life of filter bag.
In addition, in order to improve the sealing between filter bag and end cover, the filter bag blind end is provided with inward flange, and this is interior
Flange includes the rigid toroidal support piece with filter bag one, the upper end of the rigid circular seal piece and the upper end evagination of end cover
Sealing ring is provided between edge." rigidity " of annular brace piece refers to that annular brace piece itself is made up of rigid material, such as ring
Shape support chip is made up of annular steel disc, but, generally speaking there can be certain radial deformation capabilities with regard to annular brace piece, with
It is easy to when necessary end cover is encased on filter bag blind end from filter bag blind end outside.Rigid toroidal support piece increased
The integral rigidity of filter bag blind end, arranges sealing between the upper end of rigid circular seal piece and the upper end outward flange of end cover
After circle, the sealing ring is extruded in the presence of rigid toroidal support piece with end cover upper end outward flange, so as to realize filter bag
Sealing between end cover, sealing effectiveness is reliable and stable.
To solve above-mentioned second technical problem, the defecator for gas solid separation includes a casing, in the casing
Abacus is installed, arrangement on orifice plate is provided with the outside filtering type filter bag of multiple one end opens and other end closing, and the filter bag is opened
Mouth end is arranged on orifice plate, and the blind end of filter bag is provided with rigid seal end cap, and the end cover is connected with makes the filter bag axle
To the elastic pulling device of tensioning, simultaneously elastic tension is protected outside filter bag and filter bag blind end with orifice plate for the elastic pulling device connection
Hold between the fixing component of setpoint distance, orifice plate inner side be located in the casing and be Primordial Qi room, be air-purifying chamber on the outside of orifice plate,
Casing is provided with the air vent with the air inlet of Primordial Qi room conducting and with air-purifying chamber conducting, and casing is provided with for each filter bag
The back-blowing device of recoil air-flow deashing is carried out, wherein, the filter bag blind end is provided with inward flange, and the inward flange includes and filter bag one
The rigid toroidal support piece of body, between the upper end of the rigid circular seal piece and the upper end outward flange of end cover sealing is provided with
Circle.Rigid toroidal support piece increased the integral rigidity of filter bag lower end, in the upper end of rigid circular seal piece and end cover
Arrange between the outward flange of upper end after sealing ring, effect of the sealing ring in rigid toroidal support piece and end cover upper end outward flange
Under be extruded, so as to realize the sealing between filter bag and end cover, sealing effectiveness is reliable and stable.
To solve above-mentioned 3rd technical problem, the defecator for gas solid separation includes peace in casing, the casing
Equipped with orifice plate, arrangement on orifice plate is provided with the outside filtering type filter bag of multiple one end opens and other end closing, the opening of the filter bag
End is arranged on orifice plate, and it is air-purifying chamber to be located in casing on the inside of orifice plate for Primordial Qi room, positioned at orifice plate outside, and casing is provided with and original
The air inlet and the air vent with air-purifying chamber conducting of air chamber conducting, casing is provided with clear for carrying out recoil air-flow to each filter bag
The back-blowing device of ash, wherein, orifice-baffle support location structure is installed in the casing, arrange on the orifice-baffle support location structure and set
At least two filter assemblies installation through-holes are equipped with, correspondence is provided with one group of filter assemblies on each filter assemblies installation through-hole,
The orifice plate and multiple openings that the filter assemblies include with orifice-baffle support location structure removable seal connects passes through corresponding
The filter bag that is connected with the orifice plate of filter assemblies installation through-hole.Make to define at least two groups in casing by above-mentioned improvement
The filter assemblies being detachably connected with the orifice-baffle support location structure respectively, the filter bag on each filter assemblies can be advance
It is externally mounted on the orifice plate of the filter assemblies in the casing of defecator, the orifice plate and orifice plate of filter bag then will be loaded with again
Support location structure connects in casing, so that filter assemblies are adapted to corresponding filter assemblies installation through-hole, so can be so as to
In the assembling and maintenance of defecator.
With reference to the accompanying drawings and detailed description the present invention is described further.The additional aspect of the present invention and excellent
Point will be set forth in part in the description, and partly will become apparent from the description below, or by the practice of the present invention
Solve.
Description of the drawings
Fig. 1 is a kind of structural representation of specific embodiment of the application defecator.
Fig. 2 is the partial enlarged drawing in Fig. 1 at A.
Fig. 3 is the partial enlarged drawing in Fig. 1 at B.
Fig. 4 is the top view that Fig. 1 aperture plates support location structure.
Specific embodiment
As shown in figure 1, a kind of typical structure that the application is used for the defecator of gas solid separation is：Defecator includes
Abacus 120 is installed, arrangement on orifice plate 120 is provided with multiple upper end opens and lower end seal in one casing 110, the casing 110
The outside filtering type filter bag 130 for closing, the upper end of these filter bags 130 is arranged on orifice plate 120, and the lower end of filter bag 130 is connected with and makes respectively
The elastic pulling device 170 that each filter bag 130 is axially tensioned, the connection of elastic pulling device 170 and elastic tension are in filter bag 130 and filter
The lower section of bag 130 and orifice plate 120 are kept between the fixing component 180 of setpoint distance, and being additionally provided with each filter bag 130 makes each filter bag
The inner support component 131 of 130 overall radial elastic tensions, described inner support component 131 is specifically using the inner chamber with filter bag 130
Cylindrical cage structure 131a being adapted, the internal diameter of the external diameter of cage structure 131a than filter bag 130 in naturalness is big by 0
～1mm；It is located at the lower section of orifice plate 120 in casing 110 to be Primordial Qi room 140, positioned at the top of orifice plate 120 be air-purifying chamber 150, casing 110
The air vent 112 with the air inlet 111 of the conducting of Primordial Qi room 140 and with the conducting of air-purifying chamber 150 is provided with, the top of casing 110 is provided with
For carrying out the back-blowing device 160 of recoil air-flow deashing to each filter bag 130.
" the bag cage " referred in above-mentioned cylindrical cage structure 131a and background technology is using essential distinction.Bag cage
It is loose fit between filter bag, its effect is only that filter bag is prevented under filtration condition because the air pressure outside filter bag is higher than in filter bag
The air pressure in portion and produce interior flat.The effect of cylindrical cage structure 131a of the application is overall radial elastic tension filter bag 130,
I.e. filter bag 130 is tightly collapsed outside cylindrical cage structure 131a.Because filter bag 130 is in elastic pulling device 170 and cylindrical cage
In axial direction, the biaxial tension state of radial direction under the collective effect of shape structure 131a, the deformability of filter bag 130 is presented between firm
Intermediateness of the property between filter element and flexible filter element, during filtration only there is less radial deformation in filter bag 130, pass through
When back-blowing device 160 implements recoil air-flow deashing to filter bag 130, filter bag 130 first can carry out more small size under recoil airflow function
The expanded radially of degree, so that the lower end of filter bag 130 further tenses upwards elastic pulling device 170, and when recoil air-flow disappears
After mistake, filter bag 130 produces axial direction by a small margin and the vibration of upper frequency under the effect of the resilience force of elastic pulling device 170, produces
Promote the shearing force for making the particulate matter on the surface of filter bag 130 from the sur-face peeling of filter bag 130, imitate so as to improve the deashing to filter bag 130
Really.
In above-mentioned defecator, the bag of filter bag 130 specifically includes the inner bag that is made up of High-strength air-permeable fabric and closely attached
The microporous filter thin film on outer surface of liner, longitudinal direction (the correspondence filter bag axial direction) tensile strength >=520KN/m of the inner bag,
Horizontal (correspondence filter bag radially) tensile strength >=380KN/m.More specifically, the microporous filter thin film is adopted to particle diameter as 0.1
To the eptfe membrane of the rejection rate more than 99% of 0.12 micron of particulate matter；Inner bag is constituted using Woven glass cloth；
Eptfe membrane is attached on Woven glass cloth.It may be noted that the content such as properity of above-mentioned filter bag 130 is in reference
It has been described in detail in document, related content may be referred to the record of the document, the application is no longer repeated this.
Embodiment 1
Such as Fig. 1～3, bag inner bag made by the eptfe membrane and Woven glass cloth of filter bag 130 is constituted.
The thickness of inner bag is 0.5 millimeter, and its longitudinal tensile strength is 580KN/m, transverse tensile strength is 430KN/m.The length of filter bag 130
For 12 meters, a diameter of 300 millimeters.Sealing ring is provided between the upper end side wall of each filter bag 130 and the filter bag installing hole of orifice plate 120
121, the lower end of each filter bag 130 is mounted on rigid seal end cap 134, be mounted at the bottom centre of each end cover 134 with
The drag hook 134b of the correspondence elasticity connection of pulling device 170, end cover 134 is independent of each other with cylindrical cage structure 131a
Component, end cover 134 is identical with the mode shown in list of references Figure of description 3 with the installation connected mode of filter bag 130.Bullet
Property pulling device 170 adopt spring cylinder, one end of spring cylinder to be connected with the bottom drag hook 134b of end cover 134, the other end with
Fixing component 180 connects.Each elastic pulling device puts on the pulling force of correspondence filter bag and is set as 40 kilograms.Cylindrical caged knot
The big 0.5mm of internal diameter of the external diameter of structure 131a than filter bag 130 in naturalness.During normal filtration, coal gas to be filtered is from air inlet
111 enter in Primordial Qi room 140, then enter air-purifying chamber 150 (the radial deformation very little of filter bag) through filter bag under filter pressure,
Discharged from air vent 112 by the gas for filtering clean；After filter bag surface attachment certain thickness dust, by back-blowing device
160 act on filter bag high-pressure pulse back-blowing air-flow, and filter bag produces axially the vibration of high frequency by a small margin, and the ash-removal effect of filter bag is good
It is good.
Embodiment 2
On the basis of embodiment 1, embodiment 2 further improves the structure of the lower end of each filter bag 130.Specifically, such as
Shown in Fig. 3, the top of its end cover 134 is with cylindrical cage structure 131a bottom welding for one；Additionally, each filter bag
130 lower ends are additionally provided with inward flange, and the inward flange includes the rigid toroidal support piece 132 with the one of filter bag 130, and the rigid annular shaped is close
Sealing ring 133 is provided between the upper end of mounting 132 and the upper end outward flange 134a of end cover 134.Wherein, both can be by having made
Rigid toroidal support piece 132 is directly fixed on the lower end inner wall of filter bag 130 and forms the inward flange, it is also possible to described by making
Rigid toroidal support piece 132 is typically entrapped within the lower end flange of filter bag 130 and forms the inward flange.Rigid toroidal support piece 132 is by ring
The steel disc of shape is constituted.Take in Fig. 3 by making rigid toroidal support piece 132 be directly fixed on the lower end inner wall of filter bag 130 and
Form the inward flange.After end cover 134 is welded as a whole with cylindrical cage structure 131a, filter bag 130, close is facilitated
End-blocking assembling in casing 110 of lid 134 and cage structure 131a is (by cage structure 131a of connection end cover 134 from upper
Down load filter bag 130, simple and efficient), while improve the globality of three, reduce filter bag 130 and cage structure 131a
Between abrasion.The setting of rigid toroidal support piece 132 improves the rigidity of the lower end of filter bag 130, in rigid circular seal piece 132
Upper end and the upper end outward flange 134a of end cover 134 between arrange sealing ring 133 after, the sealing ring 133 is in rigid annular shaped
It is extruded in the presence of support chip 132 and the upper end outward flange 134a of end cover 134, so as to realize between filter bag and end cover
Sealing.Contrast is better than embodiment using discovery, the significant sealing affection in embodiment 2 between filter bag 130 and end cover 134
Sealing effectiveness in 1 between filter bag 130 and end cover 134.
Embodiment 3
On the basis of embodiment 2, embodiment 3 further improves the installation side in casing 110 of each filter bag 130
Formula.Specifically, as shown in Fig. 1,4, orifice-baffle support location structure 190, in the present embodiment, hole are installed in the casing 110
Plate supports and four filter assemblies installation through-holes 191 (as shown in Figure 4, four filter assemblies peaces is disposed with location structure 190
Dress through hole 191 is in plane rectangular array), correspondence is provided with one group of filter assemblies, institute on each filter assemblies installation through-hole 191
Stating filter assemblies includes the orifice plate 120 that is connected with the removable seal of orifice-baffle support location structure 190 and multiple upper ends through right
The filter bag 130 that the filter assemblies installation through-hole 191 answered is connected with the orifice plate 120.Wherein, the orifice-baffle support positioning knot
Structure 190 is specifically made up of the shaped steel (channel-section steel specifically may be selected) being weldingly fixed on the inwall of casing 110, each filter assemblies peace
Dress through hole 191 is to surround housing by correspondence shaped steel to constitute, and part 192 is threaded connection between the orifice plate 120 and shaped steel and is connected
Connect, in orifice plate 120 and the mating surface of shaped steel sealing member is also equipped with.By above-mentioned improvement make to be defined in casing four groups respectively with
The filter assemblies that the orifice-baffle support location structure is detachably connected, the filter bag on each filter assemblies can filtered in advance
The casing of device is externally mounted on the orifice plate of the filter assemblies, and the orifice plate and orifice-baffle support positioning of filter bag then will be loaded with again
Structure connects in casing, so that filter assemblies are adapted to corresponding filter assemblies installation through-hole, so can be in order to filtering
The assembling and maintenance of device.
Claims (10)
1. it is used for the defecator of gas solid separation, including a casing (110), abacus (120) is installed in the casing (110),
Arrangement on orifice plate (120) is provided with the outside filtering type filter bag (130) of multiple one end opens and other end closing, the filter bag (130)
Opening be arranged on orifice plate (120), the blind end of filter bag (130) is connected with the elasticity for making the axial tensioning of the filter bag (130)
Pulling device (170), the elastic pulling device (170) connects and elastic tension is outside filter bag (130) and filter bag (130) blind end
Between the fixing component (180) that orifice plate (120) keeps setpoint distance, it is Primordial Qi that orifice plate (120) inner side is located in casing (110)
Room (140), positioned at orifice plate (120) outside be air-purifying chamber (150), casing (110) be provided with Primordial Qi room (140) conducting air inlet
Mouth (111) and the air vent (112) with air-purifying chamber (150) conducting, casing (110) is provided with for entering to each filter bag (130)
The back-blowing device (160) of row recoil air-flow deashing, it is characterised in that：Being provided with the filter bag (130) makes the filter bag (130) whole
The inner support component (131) of body radial elastic tensioning.
2. the defecator of gas solid separation is used for as claimed in claim 1, it is characterised in that：The inner support component (131)
With the cylindrical cage structure (131a) being adapted with the inner chamber of filter bag (130), then the external diameter ratio of the cage structure (131a)
Internal diameter big 0～1mm of the filter bag (130) in naturalness.
3. the defecator of gas solid separation is used for as claimed in claim 1, it is characterised in that：Filter bag (130) the bag bag
The inner bag being made up of High-strength air-permeable fabric and the microporous filter thin film being closely attached on outer surface of liner are included, the inner bag
Longitudinal tensile strength >=520KN/m, transverse tensile strength >=380KN/m.
4. the defecator of gas solid separation is used for as claimed in claim 3, it is characterised in that：The microporous filter thin film is adopted
It is the eptfe membrane of the rejection rate more than 99% of 0.1 to 0.12 micron of particulate matter to particle diameter；The inner bag is adopted
Constituted with Woven glass cloth；The eptfe membrane is attached on Woven glass cloth.
5. the defecator for gas solid separation as described in any one claim in Claims 1-4, its feature exists
In：Orifice-baffle support location structure (190) is installed in the casing (110), is arranged on the orifice-baffle support location structure (190) and is set
At least two filter assemblies installation through-holes (191) are equipped with, correspondence is provided with one group on each filter assemblies installation through-hole (191)
Filter assemblies, the filter assemblies include the orifice plate (120) being connected with orifice-baffle support location structure (190) removable seal and
The filter bag (130) that multiple openings are connected through corresponding filter assemblies installation through-hole (191) with the orifice plate (120).
6. the defecator of gas solid separation is used for as claimed in claim 5, it is characterised in that：The orifice-baffle support location structure
(190) it is made up of the shaped steel being weldingly fixed on casing (110) inwall, each filter assemblies installation through-hole (191) is by right
Shaped steel is answered to surround housing composition；The orifice plate (120) is threaded connection part (192) between shaped steel and is connected, orifice plate (120)
Sealing member is also equipped with the mating surface of shaped steel.
7. the defecator for gas solid separation as described in any one claim in Claims 1-4, its feature exists
In：Filter bag (130) blind end is provided with a rigid seal end cap (134), installs at end cover (134) bottom centre
There is the drag hook (134b) being connected with elastic pulling device (170), one end of end cover (135) is with inner support component (131) even
It is connected in one.
8. the defecator of gas solid separation is used for as claimed in claim 7, it is characterised in that：Filter bag (130) blind end
Inward flange is provided with, the inward flange includes the rigid toroidal support piece (132) with filter bag (130) one, the rigid toroidal support piece
(132) it is provided with sealing ring (133) between upper end and the upper end outward flange (134a) of end cover (134).
9. the defecator of gas solid separation is used for as claimed in claim 8, it is characterised in that：The rigid toroidal support piece
(132) it is directly fixed on filter bag (130) blind end inwall and forms the inward flange；Or the rigid toroidal support piece
(132) it is typically entrapped within filter bag (130) blind end flange and forms the inward flange.
10. the defecator for gas solid separation as described in any one claim in Claims 1-4, its feature exists
In：The elastic pulling device (170) adopts one end of spring cylinder, spring cylinder to be connected with filter bag (130) lower end, the other end with it is solid
Determine component (180) connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154704.9A CN104740944B (en) | 2015-04-02 | 2015-04-02 | Filtering device used for gas-solid separation |
| PCT/CN2015/088604 WO2016155223A1 (en) | 2015-04-02 | 2015-08-31 | Filtering device for gas-solid separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154704.9A CN104740944B (en) | 2015-04-02 | 2015-04-02 | Filtering device used for gas-solid separation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104740944A CN104740944A (en) | 2015-07-01 |
| CN104740944B true CN104740944B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510154704.9A Active CN104740944B (en) | 2015-04-02 | 2015-04-02 | Filtering device used for gas-solid separation |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104740944B (en) |
| WO (1) | WO2016155223A1 (en) |
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| CN104740944B (en) * | 2015-04-02 | 2017-04-12 | 成都瑞柯林工程技术有限公司 | Filtering device used for gas-solid separation |
| EP3393618B1 (en) * | 2015-12-23 | 2021-06-02 | Air Products and Chemicals, Inc. | System and method for filtering a gas-solids mixture |
| CN106943847B (en) * | 2017-04-20 | 2023-08-15 | 成都瑞柯林工程技术有限公司 | Device for recovering fine iron oxide powder from pickling waste acid regeneration system |
| CN108722041B (en) * | 2017-04-20 | 2023-12-12 | 北新集团建材股份有限公司 | Dust collecting device and method for removing dust attached to outer surface of filter bag |
| CN108939723A (en) * | 2017-05-18 | 2018-12-07 | 江苏瑞洁环境工程科技有限责任公司 | A kind of vibration device in bag filter |
| CN108939724A (en) * | 2017-05-18 | 2018-12-07 | 江苏瑞洁环境工程科技有限责任公司 | The bag filter of preposed whirlwind deduster |
| CN108283847B (en) * | 2018-04-12 | 2023-07-04 | 成都易态科技有限公司 | Internal filtering type filtering device |
| CN108465309B (en) * | 2018-06-10 | 2023-05-05 | 常州三思环保科技有限公司 | Cooling dust collector of high temperature acid dust-containing gas |
| CN108854330A (en) * | 2018-07-16 | 2018-11-23 | 江苏鼎盛滤袋有限公司 | A kind of filter bag and its installation method of replacement easy to disassemble |
| CN110681222A (en) * | 2019-08-15 | 2020-01-14 | 无锡市玉净净化科技有限公司 | Energy-saving medium-efficiency composite filter material air filter bag |
| CN110479003A (en) * | 2019-08-20 | 2019-11-22 | 常熟市飞奥压力容器制造有限公司 | A kind of natural gas filter |
| CN112642227B (en) * | 2020-12-01 | 2021-07-06 | 中环环工设备无锡有限公司 | High-temperature tail gas filter for vanadium titano-magnetite pre-reduction rotary kiln |
| CN113797660A (en) * | 2021-10-19 | 2021-12-17 | 江西科霖环保装备有限公司 | High-efficiency energy-saving dust remover for furniture factory |
| CN114247218B (en) * | 2021-12-24 | 2023-06-16 | 福建龙净环保股份有限公司 | Flue gas filtering device, ash removing method thereof and dust removing equipment |
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| US4293111A (en) * | 1973-08-14 | 1981-10-06 | Kennecott Corporation | Bag filter support cage |
| KR100758238B1 (en) * | 2001-10-08 | 2007-09-12 | 주식회사 포스코 | Dust Removing Apparatus having function of Self-exciede Vibration and Internal Dust Removing |
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| CN203816386U (en) * | 2014-04-16 | 2014-09-10 | 成都瑞柯林工程技术有限公司 | Internal filtering filter-bag |
| CN104028059B (en) * | 2014-06-12 | 2016-08-31 | 成都瑞柯林工程技术有限公司 | Defecator for gas solid separation |
| CN204017572U (en) * | 2014-06-12 | 2014-12-17 | 成都瑞柯林工程技术有限公司 | For the filter of gas solid separation |
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| CN204619581U (en) * | 2015-04-02 | 2015-09-09 | 成都瑞柯林工程技术有限公司 | For the filter of gas solid separation |
| CN104740944B (en) * | 2015-04-02 | 2017-04-12 | 成都瑞柯林工程技术有限公司 | Filtering device used for gas-solid separation |
-
2015
- 2015-04-02 CN CN201510154704.9A patent/CN104740944B/en active Active
- 2015-08-31 WO PCT/CN2015/088604 patent/WO2016155223A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016155223A1 (en) | 2016-10-06 |
| CN104740944A (en) | 2015-07-01 |
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