WO2016155223A1 - 用于气固分离的过滤装置 - Google Patents

用于气固分离的过滤装置 Download PDF

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Publication number
WO2016155223A1
WO2016155223A1 PCT/CN2015/088604 CN2015088604W WO2016155223A1 WO 2016155223 A1 WO2016155223 A1 WO 2016155223A1 CN 2015088604 W CN2015088604 W CN 2015088604W WO 2016155223 A1 WO2016155223 A1 WO 2016155223A1
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Prior art keywords
filter
filter bag
orifice plate
gas
bag
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PCT/CN2015/088604
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English (en)
French (fr)
Inventor
谭险峰
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成都瑞柯林工程技术有限公司
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Publication of WO2016155223A1 publication Critical patent/WO2016155223A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04Cleaning filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/06Particle separators, e.g. dust precipitators, having hollow filters made of flexible material with means keeping the working surfaces flat

Definitions

  • the present invention relates to a filtering device, and in particular to a filtering device for gas-solid separation.
  • both external filter bags and external filter ceramic filter tubes are commonly used filter elements.
  • the so-called “external filter type” refers to a filtration method in which the gas to be filtered is infiltrated from the outside of the filter element into the interior of the filter element to achieve gas-solid separation and purification.
  • the filter device using the outer filter bag generally comprises a box body, and the box body is provided with an orifice plate, and the filter plate is arranged with a plurality of filter bags with upper end openings and closed ends, and the upper ends of the filter bags are mounted on the orifice plates.
  • the lower end of the filter bag is suspended, and some filter devices are also provided with a bag cage loosely matched with the filter bag inside the filter bag (only preventing the inner bag of the filter bag); the inner body of the box body is located below the orifice plate as the original gas chamber, and is located in the hole Above the plate is a clean air chamber.
  • the box body is provided with an air inlet which is connected to the original air chamber and an air outlet which is connected to the clean air chamber.
  • the top of the box body is also provided for recoiling the respective filter bags. Ash backflushing device.
  • the structure of the filtering device using the external filter type ceramic filter tube is similar to the above structure, the main difference is that the filter tube itself is rigid (and the filter bag is flexible), and the filter tube has no obvious radial contraction during filtration, so the filter tube has no such
  • the bag cage acts like a structure.
  • the above-mentioned filter device using the external filter bag has the disadvantage that the backflush device usually has to be applied to the high-pressure recoil airflow of 0.1 to 0.8 MPa in the filter bag, which not only has high energy consumption, but also has an unsatisfactory effect on the recoil airflow cleaning.
  • the applicant of the present application has provided a filter device for gas-solid separation in the invention patent application of CN 104028059 A (hereinafter referred to as reference), which increases the axial direction of the filter bag at the lower end of each filter bag.
  • the tensioned elastic pulling device so that when the backwashing device is used to perform the recoil airflow cleaning by the backflushing device, the filter bag first expands radially under the action of the recoil airflow, so that the lower end of the filter bag is further tightened elastically.
  • Pulling device and when the recoil airflow disappears, the filter bag axially vibrates under the elastic force of the elastic pulling device, generating a shearing force for peeling off the particles on the surface of the filter bag from the surface of the filter bag, thereby improving the filter bag Cleaning effect.
  • the above reference also claims that there is no bag cage in the filter bag.
  • the filter bag has a short length, it is only necessary to axially tighten the filter bag without additional support for the filter bag; When the length of the bag is long, an anti-flat ring can be arranged on the bag body.
  • the filter device using the external filter type ceramic filter tube has a small radial deformation amount in the filtration and backflushing process due to the rigidity of the filter tube itself, and the service life of the filter tube is high.
  • the filter tube cannot be made to generate axial vibration to strengthen the cleaning; on the other hand, the filtering device in the reference can be elastically pulled.
  • the device axially tensions the filter bag and causes the filter tube to generate axial vibration during the backflushing to assist the cleaning, but the filter bag still maintains a certain "flexible" state during use, and the radial deformation of the filter bag material is greatly increased.
  • the Applicant has also found in the actual use of the filter device of the reference that the filter device has a poor sealing effect between the filter bag and the sealed end cap at the bottom of the filter bag, and the filter bag is inconvenient to assemble in the case. And other issues.
  • the present application firstly provides a filter device for gas-solid separation in which the advantages of the above-mentioned rigid filter tube and flexible filter bag are not well balanced, and the deformation capability of the filter element can be interposed between the rigid filter tube and the flexible device. Between the filter bags, the service life of the filter element can be increased compared to the flexible filter bag, and the filter element can be axially vibrated to enhance the cleaning compared to the rigid filter tube.
  • the present invention will provide a filter device for gas-solid separation which improves the sealing performance between the filter bag and the sealed end cap for the problem of poor sealing performance between the filter bag and the sealed end cap at the bottom of the filter bag in the reference. .
  • the present invention also provides a filtration apparatus for gas-solid separation that facilitates the installation of the filter element.
  • a filter device for gas-solid separation includes a tank body in which an orifice plate is installed, and an outer filter type filter bag having one end open and the other end closed is arranged and arranged on the orifice plate.
  • the open end of the filter bag is mounted on the orifice plate, and the closed end of the filter bag is connected with an elastic pulling device for axially tensioning the filter bag, and the elastic pulling device is connected and elastically tensioned to the filter bag and the filter
  • the inner side of the hole plate is a raw air chamber
  • the outer side of the hole plate is a clean air chamber
  • the box body is provided with a conduction with the original air chamber.
  • the box body is provided with a backflushing device for performing backwashing air cleaning of each filter bag
  • the filter bag is further provided with a radial direction of the filter bag Elastically tensioned inner support assembly.
  • the filter bag maintains axial elastic tension under the action of the elastic pulling device, and at the same time, the inner support assembly acts on the filter bag from the inside to the outside, and the filter bag maintains radial elasticity.
  • Tensioning the filter bag is axially and radially biaxially stretched under the action of the elastic pulling device and the inner support assembly. At this time, the deformability of the filter bag exhibits a relationship between the rigid filter element and the flexible filter element.
  • the filter bag In the intermediate state, only a small radial deformation occurs in the filter bag during filtration.
  • the filter bag first performs a small radial direction under the action of the recoil airflow. Expanding, so that the lower end of the filter bag is further tightened upwardly by the elastic pulling device, and when the recoil airflow disappears, the filter bag generates axial small amplitude and higher frequency vibration under the elastic force of the elastic pulling device, causing the vibration The shearing force that peels the particles on the surface of the filter bag from the surface of the filter bag, thereby improving the cleaning effect on the filter bag.
  • the inner support assembly may have a cylindrical cage structure adapted to the inner cavity of the filter bag, and preferably the outer diameter of the cage structure is greater than the inner diameter of the filter bag in the natural state by 0 to 1 mm.
  • the above cylindrical cage structure ensures the contact area of the inner support component with the filter bag, and helps to achieve "integral" radial elastic tensioning of the filter bag; when the outer diameter of the cage structure is larger than the inner diameter of the filter bag in a natural state When the filter bag is 0 ⁇ 1mm, the inner diameter of the filter bag will be further reduced after the filter bag is tightened by the elastic pulling device, and the difference between the inner diameter of the filter bag and the outer diameter of the cage structure is further increased to ensure the filter through the cage structure.
  • the bag is elastically elastically stretched as a whole.
  • the outer diameter of the above cage structure may be further preferably 0.2 to 1 mm larger than the inner diameter of the filter bag in a natural state.
  • the filter bag can ensure the filtration efficiency, and achieve better gas permeability to reduce the filtration resistance. At the same time, it can also facilitate the cleaning of the filter bag and ensure the filter bag is used for a long time.
  • the slack does not occur, and the invention further improves the selection of the bag body structure and the material thereof, that is, the bag body comprises a liner composed of a high-strength breathable fabric and is closely attached to the outer surface of the bladder. Microporous filter film, the longitudinal tensile strength of the liner ⁇ 520KN/m, transverse tensile strength ⁇ 380KN/m.
  • the filter bag will not be sustained under long-term use conditions.
  • the tension is slack, avoiding the drop and disappearance of the axial and radial tension of the filter bag, preventing the radial deformation of the filter bag from increasing or/or due to the decrease or even disappearance of the axial and radial tension of the filter bag.
  • the filtering effect on the filter bag is a microporous filter film, the inner bladder supports the gas permeable effect, so the filter bag can simultaneously achieve higher filtration precision and better gas permeability, and can also be easily cleaned. gray.
  • the microporous membrane is preferably an expanded polytetrafluoroethylene membrane having a filtration rate of 99% or more for particles having a particle diameter of 0.1 to 0.12 ⁇ m;
  • the liner is preferably composed of a glass fabric (for example, surface coating)
  • the glass fiber woven fabric having a PTFE-reinforced lubricating protective layer is formed;
  • the expanded polytetrafluoroethylene film is thermally coated on the glass fiber fabric.
  • the above expanded polytetrafluoroethylene film is a film which forms a fibrous closed pore on a polytetrafluoroethylene material by tensile deformation (i.e., "bulk").
  • the film itself has the characteristics of strong water repellency and non-stickiness, so that the phenomenon of dew condensation film is not easily generated, and the purification and regeneration of the film can be easily achieved by the backflushing device.
  • the polytetrafluoroethylene-enhanced protective layer and the expanded polytetrafluoroethylene film are similar in material, so that the expanded body can be expanded.
  • the PTFE film is more closely attached to the glass fiber fabric; on the other hand, the PTFE fiber lubricated protective layer enhances and lubricates the glass fiber woven fabric, thereby greatly improving the glass fiber woven fabric.
  • the wear resistance enhances the life of the liner.
  • the material of the above liner may be prepared by impregnating and baking a glass fiber fabric with a polytetrafluoroethylene emulsion or a mixture of polytetrafluoroethylene and graphite.
  • the inner liner material is formed by impregnating and baking a glass fiber with a polytetrafluoroethylene emulsion or a mixture of polytetrafluoroethylene and graphite, followed by weaving into a glass fiber fabric.
  • the glass fiber is first impregnated with a polytetrafluoroethylene emulsion or a mixture of polytetrafluoroethylene and graphite, baked, and finally woven into a fiberglass fabric, which makes it easier to ensure that the finished fiberglass fabric is ideal.
  • Impregnation with a mixture of polytetrafluoroethylene and graphite results in better lubricity (especially high temperature lubricity) of the formed polytetrafluoroethylene lubricated protective layer.
  • the box body is further provided with an orifice plate supporting positioning structure, and the orifice plate supporting positioning structure is arranged with at least two filter component mounting through holes, and each filter component is mounted on the through hole correspondingly
  • a plurality of filter assemblies are mounted, the filter assembly including an orifice plate detachably sealingly coupled to the orifice support positioning structure and the filter bag having a plurality of open ends connected to the orifice plate through corresponding filter assembly mounting through holes.
  • the orifice plate filled with the filter bag is then connected to the orifice support positioning structure in the tank body, so that the filter assembly is matched with the corresponding filter assembly mounting through hole, which can facilitate the assembly and maintenance of the filter device.
  • the closed end of the filter bag is mounted with a rigid sealing end cap, the sealing end cap A pull hook connected to the elastic pulling device is installed at the center of the bottom, and one end of the sealed end cover is integrally connected with the inner support assembly.
  • the key to this improved structure is to connect the end of the sealed end cap to the inner support assembly, whereby the inner support assembly can be positioned both radially by the filter bag and axially by connection to the sealed end cap. Thereby further limiting the movement of the inner support assembly, reducing the relative friction between the inner support assembly and the filter bag, and increasing the service life of the filter bag.
  • the closed end of the filter bag is provided with an inner flange, which comprises a rigid annular support piece integral with the filter bag, the upper end of the rigid annular sealing piece A sealing ring is provided between the outer flange of the upper end of the sealed end cap.
  • the "rigid" of the annular support piece means that the annular support piece itself is made of a rigid material, for example, the annular support piece is composed of an annular steel piece, but the annular support piece as a whole can have a certain radial deformation ability, so as to facilitate If necessary, the sealed end cap is loaded from the outside of the closed end of the filter bag to the closed end of the filter bag.
  • the rigid annular support piece increases the overall rigidity of the closed end of the filter bag. After the seal ring is disposed between the upper end of the rigid annular seal piece and the upper end outer flange of the seal end cover, the seal ring is outside the upper end of the rigid annular support piece and the sealed end cover The flange is pressed to achieve a seal between the filter bag and the sealed end cap, and the sealing effect is stable and reliable.
  • the filtering device for gas-solid separation comprises a box body, and the hole plate is installed in the box body, and the outer plate filter with one end opening and the other end closed is arranged and arranged on the hole plate.
  • a bag the open end of the filter bag is mounted on the orifice plate, and the closed end of the filter bag is mounted with a rigid sealing end cap, and the sealing end cap is connected with an elastic pulling device for axially tensioning the filter bag, the elasticity
  • the pulling device is connected and elastically tensioned between the filter bag and the fixing member outside the closed end of the filter bag and maintaining a set distance from the orifice plate.
  • the inside of the tank body is located in the original gas chamber on the inner side of the orifice plate, and is cleaned outside the orifice plate.
  • the chamber is provided with an air inlet which is connected to the original air chamber and an air outlet which is connected to the clean air chamber, and the box body is provided with a back blowing device for performing backwashing air cleaning of each filter bag.
  • the closed end of the filter bag is provided with an inner flange, the inner flange comprises a rigid annular support piece integral with the filter bag, and the upper end of the rigid annular sealing piece is sealed with the outer end of the upper end of the sealed end cover ring.
  • the rigid annular support piece increases the overall rigidity of the lower end of the filter bag.
  • the seal ring After the seal ring is disposed between the upper end of the rigid annular seal piece and the upper end outer flange of the seal end cover, the seal ring is outside the upper end of the rigid annular support piece and the sealed end cover.
  • the flange is pressed to achieve a seal between the filter bag and the sealed end cap, and the sealing effect is stable and reliable.
  • the filtering device for gas-solid separation includes a box body in which an orifice plate is installed, and the outer plate type filter bag with one end open and the other end closed is arranged and arranged on the orifice plate.
  • the open end of the filter bag is mounted on the orifice plate, and the inside of the tank body is a raw gas chamber on the inner side of the orifice plate, and a clean air chamber is located outside the orifice plate, and the inlet body of the filter body is connected to the original gas chamber and a venting port connected to the clean air chamber
  • the box body is provided with a backflushing device for performing backwashing air cleaning of each filter bag
  • the box body is provided with an orifice plate supporting positioning structure, and the orifice plate supports
  • the positioning structure is arranged with at least two filter assembly mounting through holes, and each of the filter assembly mounting through holes is correspondingly mounted with a set of filter components, and the filter assembly comprises an orifice plate detachably and sealingly connected with the
  • At least two groups are respectively formed in the box body and supported by the orifice plate
  • the filter assembly is detachably connected to the structure, and the filter bag on each filter assembly can be pre-installed on the orifice plate of the filter assembly outside the box of the filter device, and then the orifice plate and the orifice plate filled with the filter bag
  • the support positioning structure is connected in the casing so that the filter assembly is fitted with the corresponding filter assembly mounting through hole, which facilitates assembly and maintenance of the filter device.
  • FIG. 1 is a schematic structural view of a specific embodiment of a filtering device of the present application.
  • Figure 2 is a partial enlarged view of a portion A in Figure 1.
  • Figure 3 is a partial enlarged view of a portion B in Figure 1.
  • FIG. 4 is a top plan view of the orifice plate support positioning structure of FIG. 1.
  • the filter device includes a tank 110 in which the orifice plate 120 is mounted, and the orifice plate 120 is arranged on the orifice plate 120.
  • the outer filter filter bag 130 has a plurality of open ends and the lower end is closed.
  • the upper ends of the filter bags 130 are mounted on the orifice plate 120.
  • the lower end of the filter bag 130 is connected with elastic tension for respectively axially tensioning the filter bags 130.
  • the device 170, the elastic pulling device 170 is connected and elastically tensioned between the filter bag 130 and the fixing member 180 under the filter bag 130 and maintaining a set distance from the orifice plate 120.
  • Each filter bag 130 is further provided with a filter bag 130.
  • the inner radially-tensioned inner support assembly 131 specifically adopts a cylindrical cage structure 131a adapted to the inner cavity of the filter bag 130, the outer diameter of the cage structure 131a is larger than the filter bag 130 is in the natural state, the inner diameter is 0 to 1 mm;
  • the tank 110 is located below the orifice plate 120 as the original gas chamber 140, and above the orifice plate 120 is the clean air chamber 150.
  • the tank 110 is provided with the original gas chamber 140.
  • An air inlet 111 and an exhaust port 112 connected to the clean air chamber 150 are provided above the box 110 for
  • the filter bag 130 performs a backflushing device 160 for recoiling the airflow.
  • the above cylindrical cage structure 131a is substantially different in function from the "pocket cage” mentioned in the background art.
  • the bag cage and the filter bag are loosely matched, and the function is only to prevent the filter bag from being invaded due to the air pressure outside the filter bag being higher than the air pressure inside the filter bag in the filtered state.
  • the cylindrical cage structure 131a of the present application functions as an integral radial elastic tensioning filter bag 130, i.e., the filter bag 130 is collapsed outside the cylindrical cage structure 131a. Since the filter bag 130 is in an axially and radially biaxially stretched state under the combined action of the elastic pulling device 170 and the cylindrical cage structure 131a, the deformability of the filter bag 130 exhibits a relationship between the rigid filter element and the flexible filter element.
  • the filter bag 130 In the intermediate state between the filter bag 130, only small radial deformation occurs during the filtering, and when the back filter air is cleaned by the backflushing device 160, the filter bag 130 is firstly subjected to the recoil flow.
  • the radial expansion is small, so that the lower end of the filter bag 130 is further tightened upward by the elastic pulling device 170, and when the recoil airflow disappears, the filter bag 130 generates an axial small amplitude under the elastic force of the elastic pulling device 170.
  • the higher frequency vibration produces a shearing force that causes the particles on the surface of the filter bag 130 to be peeled off from the surface of the filter bag 130, thereby improving the cleaning effect on the filter bag 130.
  • the bag body of the filter bag 130 specifically comprises a liner composed of a high-strength breathable fabric and a microporous filter film closely attached to the outer surface of the liner, and the longitudinal direction of the bladder (corresponding to the axial direction of the filter bag)
  • the tensile strength is ⁇ 520KN/m
  • the transverse direction is ⁇ 380KN/m.
  • the microporous filtration membrane adopts an expanded polytetrafluoroethylene membrane having a filtration ratio of 99% or more for particles having a particle diameter of 0.1 to 0.12 ⁇ m;
  • the inner liner is composed of a glass fiber fabric;
  • the vinyl fluoride film is attached to the glass fabric.
  • the bag body of the filter bag 130 is composed of the inner casing made of the expanded polytetrafluoroethylene film and the glass fiber fabric.
  • the inner liner has a thickness of 0.5 mm, a longitudinal tensile strength of 580 KN/m, and a transverse tensile strength of 430 KN/m.
  • the filter bag 130 has a length of 12 meters and a diameter of 300 mm.
  • a sealing ring 121 is disposed between the upper end side wall of each filter bag 130 and the filter bag mounting hole of the orifice plate 120.
  • the lower end of each filter bag 130 is mounted with a rigid sealing end cap 134, and the bottom end of each sealing end cap 134 is installed at the bottom.
  • the sealing end cover 134 and the cylindrical cage structure 131a are independent members, and the sealing end cover 134 and the filter bag 130 are mounted and connected with reference to FIG. The way is the same.
  • the elastic pulling device 170 employs a spring cylinder having one end connected to the lower hook 134b of the seal end cap 134 and the other end connected to the fixing member 180.
  • the tensile force applied to the corresponding filter bag by each elastic pulling device was set to 40 kg.
  • the outer diameter of the cylindrical cage structure 131a is larger than the inner diameter of the filter bag 130 in the natural state by 0.5 mm.
  • the gas to be filtered enters the raw air chamber 140 from the air inlet 111, and then passes through the filter bag under the filtering pressure into the clean air chamber 150 (the radial deformation of the filter bag is small), and the filtered gas is discharged from the row.
  • the gas port 112 is discharged; when a certain thickness of dust adheres to the surface of the filter bag, the backflushing device 160 acts on the high pressure pulse backflushing airflow of the filter bag, and the filter bag generates axial small amplitude high frequency vibration, and the filter bag has good cleaning effect. .
  • Example 2 further improved the structure of the lower end of each filter bag 130.
  • the top of the sealed end cap 134 is welded integrally with the bottom of the cylindrical cage structure 131a; in addition, the lower end of each filter bag 130 is further provided with an inner flange, which includes and filters
  • a rigid annular support piece 132 of the bag 130 is integrally provided with a sealing ring 133 between the upper end of the rigid annular sealing piece 132 and the upper end outer flange 134a of the sealed end cap 134.
  • the inner flange may be formed by directly fixing the rigid annular support piece 132 to the inner wall of the lower end of the filter bag 130, or by forming the rigid annular support piece 132 into the lower end of the filter bag 130.
  • the rigid annular support piece 132 is constructed of an annular steel sheet.
  • the inner flange is formed in Fig. 3 by directly securing the rigid annular support piece 132 to the inner wall of the lower end of the filter bag 130.
  • the sealing end cap 134 is welded integrally with the cylindrical cage structure 131a, the assembly of the filter bag 130, the sealing end cap 134 and the cage structure 131a in the casing 110 is facilitated (the cage structure connecting the sealing end caps 134)
  • the loading of the filter bag 130 from the top to the bottom of the 131a is quick and easy, and at the same time, the integrity of the three is improved, and the wear between the filter bag 130 and the cage structure 131a is reduced.
  • the arrangement of the rigid annular support piece 132 increases the rigidity of the lower end of the filter bag 130 in a rigid annular seal
  • the sealing ring 133 is disposed between the upper end of the piece 132 and the upper end outer flange 134a of the sealing end cap 134
  • the sealing ring 133 is pressed by the rigid annular support piece 132 and the upper end outer flange 134a of the sealing end cover 134.
  • the sealing effect between the filter bag 130 and the sealed end cap 134 in Example 2 was found to be significantly better than the sealing effect between the filter bag 130 and the sealed end cap 134 in Example 1.
  • Embodiment 3 further improves the manner in which the respective filter bags 130 are mounted in the casing 110.
  • an aperture plate support positioning structure 190 is mounted in the housing 110.
  • four filter assembly mounting through holes 191 are arranged on the aperture support positioning structure 190. (As shown in FIG. 4, the four filter assembly mounting through holes 191 are in a planar rectangular array), and each filter assembly mounting through hole 191 is correspondingly mounted with a set of filter assemblies, and the filter assembly includes a detachable support plate 190.
  • the seal-connected orifice plate 120 and the plurality of upper ends pass through the corresponding filter assembly mounting through-hole 191 to the filter bag 130 to which the orifice plate 120 is attached.
  • the orifice support positioning structure 190 is specifically composed of a profile steel (specifically selected channel steel) welded and fixed on the inner wall of the casing 110, and each filter assembly installation through hole 191 is formed by a corresponding steel frame.
  • the orifice plate 120 and the profile steel are connected by a threaded connection member 192, and a sealing member is also mounted on the mating surface of the orifice plate 120 and the profiled steel.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

一种用于气固分离的过滤装置包括:一箱体(110),箱体(110)内安装有孔板(120),孔板(120)上排列安装有多个一端开口且另一端封闭的外滤式滤袋(130),滤袋(130)的开口端安装在孔板(120)上,滤袋(130)的封闭端连接有使滤袋(130)轴向张紧的弹性牵拉装置(170),滤袋(130)中设有使滤袋(130)整体径向弹性张紧的内支撑组件(131)。滤袋(130)在弹性牵拉装置(170)和内支撑组件(131)的共同作用下呈轴向、径向的双向拉伸状态,滤袋(130)的变形能力介于刚性过滤元件与柔性过滤元件之间。

Description

用于气固分离的过滤装置 技术领域
本发明涉及一种过滤装置,具体涉及一种用于气固分离的过滤装置。
背景技术
在气固过滤分离领域,外滤式滤袋和外滤式陶瓷滤管均是常用的过滤元件。所谓“外滤式”指待过滤气体从过滤元件外部向过滤元件内部渗透从而实现气固分离净化的过滤方式。使用外滤式滤袋的过滤装置结构上一般包括箱体,箱体内安装有孔板,孔板上排列安装有多个上端开口且下端封闭的滤袋,这些滤袋的上端安装在孔板上,滤袋的下端悬空,有的过滤装置还在滤袋的内部装有与滤袋松配合的袋笼(仅为防止滤袋内瘪);箱体内位于孔板下方为原气室、位于孔板上方为净气室,箱体上设有与原气室导通的进气口和与净气室导通的排气口;箱体上方还设有用于对各个滤袋进行反冲气流清灰的反吹装置。使用外滤式陶瓷滤管的过滤装置结构与上述结构类似,主要区别在于滤管本身为刚性(而滤袋为柔性),过滤时滤管并无明显径向收缩,故滤管内也无与上述袋笼作用类似的结构。
上述使用外滤式滤袋的过滤装置缺点主要为反吹装置通常须作用于滤袋0.1至0.8兆帕的高压反冲气流,不仅能耗高,而且反冲气流清灰效果也不理想等。为此,本申请的申请人在CN104028059A的发明专利申请文献(下称参考文献)中提供了一种用于气固分离的过滤装置,该装置在各滤袋的下端增加了使滤袋轴向张紧的弹性牵拉装置,这样,通过反吹装置对滤袋实施反冲气流清灰时,滤袋先会在反冲气流作用下径向膨胀,从而使滤袋的下端向上进一步拉紧弹性牵拉装置,而当反冲气流消失后,在弹性牵拉装置回弹力作用下滤袋轴向振动,产生使滤袋表面的颗粒物从滤袋表面剥离的剪切力,从而提高对滤袋的清灰效果。另外,上述参考文献中还主张在其滤袋内不设袋笼,当滤袋长度较短时,只需通过将滤袋轴向拉紧而不需要对滤袋进行其他多余的支撑;当滤袋长度较长时,可在滤袋袋体上设置防扁环。
本申请的发明人注意到,使用外滤式陶瓷滤管的过滤装置由于其滤管本身为刚性,因此该滤管在过滤和反吹过程中径向变形量微小,滤管的使用寿命较高,但是,由于该过滤装置中难以使用参考文献中的弹性牵拉装置,故不能使滤管产生轴向振动来强化清灰;而另一方面,参考文献中的过滤装置虽然可通过弹性牵拉装置使滤袋轴向张紧并在反吹时使滤管产生轴向振动而辅助清灰,但滤袋在使用过程中仍保持一定的“柔性”状态,滤袋材料的径向变形量大大高于刚性滤管,从而影响滤袋的使用寿命。除上述问题外,申请人还在参考文献的过滤装置的实际使用中发现,该过滤装置存在其滤袋与滤袋底部的密封端盖之间的密封效果不佳、滤袋在箱体内组装不便等问题。
发明内容
本申请首先针对上述刚性滤管和柔性滤袋各自使用优点无法很好兼顾的问题,提供一种用于气固分离的过滤装置,该装置中过滤元件的变形能力可介于刚性滤管和柔性滤袋之间,从而既可相比于柔性滤袋提高过滤元件的使用寿命,又可相比于刚性滤管实现使过滤元件产生轴向振动来强化清灰。本发明其次将针对参考文献中滤袋与滤袋底部的密封端盖之间密封性能不佳的问题提供一种改善其滤袋与密封端盖之间密封性能的用于气固分离的过滤装置。本发明还要提供一种使过滤元件的安装更为方便的用于气固分离的过滤装置。
为解决上述第一个技术问题,用于气固分离的过滤装置包括箱体,所述箱体内安装有孔板,孔板上排列安装有多个一端开口且另一端封闭的外滤式滤袋,所述滤袋的开口端安装在孔板上,滤袋的封闭端连接有使该滤袋轴向张紧的弹性牵拉装置,该弹性牵拉装置连接并弹性张紧于滤袋和滤袋封闭端外与孔板保持设定距离的固定构件之间,箱体内位于孔板内侧为原气室、位于孔板外侧为净气室,箱体上设有与原气室导通的进气口和与净气室导通的排气口,箱体上设有用于对各个滤袋进行反冲气流清灰的反吹装置,所述滤袋中还设置有使该滤袋整体径向弹性张紧的内支撑组件。上述过滤装置在过滤状态下,其滤袋在弹性牵拉装置的作用下保持轴向弹性张紧,同时,所述的内支撑组件从内向外作用于滤袋又使该滤袋保持径向弹性张紧,滤袋在弹性牵拉装置和内支撑组件的共同作用下呈轴向、径向的双向拉伸状态,这时,滤袋的变形能力呈现出介于刚性过滤元件与柔性过滤元件之间的中间状态,过滤时滤袋仅发生较小的径向变形,通过反吹装置对滤袋实施反冲气流清灰时,滤袋先会在反冲气流作用下进行较小幅度的径向膨胀,从而使滤袋的下端向上进一步拉紧弹性牵拉装置,而当反冲气流消失后,在弹性牵拉装置回弹力作用下滤袋产生轴向小幅度且较高频率的振动,产生促使使滤袋表面的颗粒物从滤袋表面剥离的剪切力,从而提高对滤袋的清灰效果。
所述内支撑组件可以是具有与滤袋的内腔相适配的圆柱形笼状结构,则优选该笼状结构的外径比滤袋在自然状态时的内径大0~1mm。上述圆柱形笼状结构保证了内支撑组件与滤袋的接触面积,有助于使滤袋实现“整体”径向弹性张紧;当笼状结构的外径比滤袋在自然状态时的内径大0~1mm时,在滤袋通过弹性牵拉装置拉紧后滤袋的内径还会进一步缩小,滤袋的内径与笼状结构外径的差值进一步提高,确保通过笼状结构使该滤袋整体径向弹性张紧。上述笼状结构的外径可进一步优选为比滤袋在自然状态时的内径大0.2~1mm。
为使滤袋既能达到较高的过滤精度以保证其过滤效率,又能达到较好的透气性以降低过滤阻力,同时还能便于对滤袋进行清灰,以及保证滤袋在长期使用下不发生松弛,本发明还进一步的对滤袋袋体结构及其材料的选择进行了如下改进,即:滤袋袋体包括由高强度透气织物构成的内胆及紧密附着于内胆外表面上的微孔过滤薄膜,所述内胆的纵向拉伸强度≥ 520KN/m、横向拉伸强度≥380KN/m。将上述由高强度透气织物构成的内胆与微孔过滤薄膜组合运用,一方面受益于高强度透气织物所具备的较高的拉伸强度而使滤袋在长期使用条件下不会因为持续的张紧发生松弛,避免滤袋轴向和径向张紧力的下降和消失,防止因滤袋轴向和径向张紧力的下降甚至消失所导致滤袋径向变形量增大或/和摆动;另一方面由于滤袋上起过滤作用的部分为微孔过滤薄膜,内胆起支撑透气作用,故滤袋可同时达到较高的过滤精度和较好的透气性,另外也可便于清灰。
微孔过滤薄膜建议可采用对粒径为0.1至0.12微米的颗粒物的滤除率在99%以上的膨体聚四氟乙烯膜;所述内胆则建议采用玻纤织物构成(例如表面包覆有聚四氟乙烯基润滑强化保护层的玻纤织物构成);所述膨体聚四氟乙烯膜热覆于玻纤织物上。上述的膨体聚四氟乙烯膜是一种通过拉伸变形(即“膨体”的含义)从而在聚四氟乙烯材料上形成纤维状封闭孔的膜。该膜本身具有极强的憎水性和不粘灰的特点,因此不易产生结露糊膜现象,并且通过反吹装置能够轻易地实现膜的净化再生。在玻纤织物表面包覆聚四氟乙烯基润滑强化保护层后,一方面由于聚四氟乙烯基润滑强化保护层与膨体聚四氟乙烯膜在材料上的相近性,故能将膨体聚四氟乙烯膜更为紧密的附着于玻纤织物上;另一方面由于聚四氟乙烯基润滑强化保护层对玻纤织料起到了增强和润滑作用,故极大提高了玻纤织料的耐磨性,增强了内胆使用寿命。
上述内胆的材料可以是将玻纤织物用聚四氟乙烯乳液或聚四氟乙烯与石墨的混合液浸渍并烘烤而制成的。但是,内胆材料最好是将玻璃纤维用聚四氟乙烯乳液或聚四氟乙烯与石墨的混合液浸渍并烘烤后再织造为玻纤织物而制成。这种先将玻璃纤维用聚四氟乙烯乳液或聚四氟乙烯与石墨的混合液浸渍,再进行烘烤,最后织造为玻纤织物的方式,更容易确保制成的玻纤织物具有理想的透气性,同时也使聚四氟乙烯基润滑强化保护层对玻纤织物的包覆更加全面彻底。采用聚四氟乙烯与石墨的混合液进行浸渍,可使形成的聚四氟乙烯基润滑强化保护层的润滑性(尤其是高温润滑性)更好。
作为对上述过滤装置的进一步改进,所述箱体内还安装有孔板支撑定位结构,该孔板支撑定位结构上排列设置有至少两个过滤组件安装通孔,每一个过滤组件安装通孔上对应安装有一组过滤组件,所述过滤组件包括与孔板支撑定位结构可拆卸密封连接的孔板以及多个开口端穿过对应的过滤组件安装通孔与所述孔板连接的所述滤袋。通过上述改进使箱体内形成了至少两组分别与所述孔板支撑定位结构可拆卸连接的过滤组件,每一个过滤组件上的滤袋可以预先在过滤装置的箱体外部安装到该过滤组件的孔板上,然后再将装满了滤袋的孔板与孔板支撑定位结构在箱体内连接,从而使过滤组件与对应的过滤组件安装通孔适配,这样可以便于过滤装置的组装和维护。
作为对上述过滤装置的又一改进,所述滤袋封闭端安装有一刚性密封端盖,该密封端盖 底部中心处安装有与弹性牵拉装置连接的拉钩,密封端盖的一端与内支撑组件连接为一体。此改进结构的关键之处是将密封端盖的端部与内支撑组件连接为一体,由此,内支撑组件既能够被滤袋径向定位,又通过与密封端盖连接而轴向定位,从而进一步限制内支撑组件活动,减少内支撑组件与滤袋之间的相对磨擦,提高滤袋的使用寿命。
另外,为了提高滤袋与密封端盖之间的密封性,所述滤袋封闭端设有内凸缘,该内凸缘包括与滤袋一体的刚性环形支撑片,该刚性环形密封片的上端与密封端盖的上端外凸缘之间设有密封圈。环形支撑片的“刚性”是指环形支撑片本身由刚性的材料制成,例如环形支撑片由环形钢片构成,但是,就环形支撑片整体而言可以具有一定的径向变形能力,以便于在必要时将密封端盖从滤袋封闭端外侧装入到滤袋封闭端上。刚性环形支撑片增加了滤袋封闭端的整体刚性,在刚性环形密封片的上端与密封端盖的上端外凸缘之间设置密封圈后,该密封圈在刚性环形支撑片与密封端盖上端外凸缘的作用下被挤压,从而实现滤袋与密封端盖之间的密封,密封效果稳定可靠。
为解决上述第二个技术问题,用于气固分离的过滤装置包括一箱体,所述箱体内安装有孔板,孔板上排列安装有多个一端开口且另一端封闭的外滤式滤袋,所述滤袋的开口端安装在孔板上,滤袋的封闭端安装有刚性密封端盖,所述密封端盖连接有使该滤袋轴向张紧的弹性牵拉装置,该弹性牵拉装置连接并弹性张紧于滤袋和滤袋封闭端外与孔板保持设定距离的固定构件之间,所述箱体内位于孔板内侧为原气室、位于孔板外侧为净气室,箱体上设有与原气室导通的进气口和与净气室导通的排气口,箱体上设有用于对各个滤袋进行反冲气流清灰的反吹装置,其中,所述滤袋封闭端设有内凸缘,该内凸缘包括与滤袋一体的刚性环形支撑片,该刚性环形密封片的上端与密封端盖的上端外凸缘之间设有密封圈。刚性环形支撑片增加了滤袋下端的整体刚性,在刚性环形密封片的上端与密封端盖的上端外凸缘之间设置密封圈后,该密封圈在刚性环形支撑片与密封端盖上端外凸缘的作用下被挤压,从而实现滤袋与密封端盖之间的密封,密封效果稳定可靠。
为解决上述第三个技术问题,用于气固分离的过滤装置包括箱体,所述箱体内安装有孔板,孔板上排列安装有多个一端开口且另一端封闭的外滤式滤袋,所述滤袋的开口端安装在孔板上,箱体内位于孔板内侧为原气室、位于孔板外侧为净气室,箱体上设有与原气室导通的进气口和与净气室导通的排气口,箱体上设有用于对各个滤袋进行反冲气流清灰的反吹装置,其中,所述箱体内安装有孔板支撑定位结构,该孔板支撑定位结构上排列设置有至少两个过滤组件安装通孔,每一个过滤组件安装通孔上对应安装有一组过滤组件,所述过滤组件包括与孔板支撑定位结构可拆卸密封连接的孔板以及多个开口端穿过对应的过滤组件安装通孔与所述孔板连接的所述滤袋。通过上述改进使箱体内形成了至少两组分别与所述孔板支撑 定位结构可拆卸连接的过滤组件,每一个过滤组件上的滤袋可以预先在过滤装置的箱体外部安装到该过滤组件的孔板上,然后再将装满了滤袋的孔板与孔板支撑定位结构在箱体内连接,从而使过滤组件与对应的过滤组件安装通孔适配,这样可以便于过滤装置的组装和维护。
下面结合附图和具体实施方式对本发明做进一步的说明。本发明附加的方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本发明的实践了解到。
附图说明
图1为本申请过滤装置一种具体实施方式的结构示意图。
图2为图1中A处的局部放大图。
图3为图1中B处的局部放大图。
图4为图1中孔板支撑定位结构的俯视图。
具体实施方式
如图1所示,本申请用于气固分离的过滤装置的一种典型的结构为:过滤装置包括一箱体110,所述箱体110内安装有孔板120,孔板120上排列安装有多个上端开口且下端封闭的外滤式滤袋130,这些滤袋130的上端安装在孔板120上,滤袋130的下端连接有分别使各滤袋130轴向张紧的弹性牵拉装置170,弹性牵拉装置170连接并弹性张紧于滤袋130和滤袋130下方与孔板120保持设定距离的固定构件180之间,各滤袋130中还设置有使各滤袋130整体径向弹性张紧的内支撑组件131,所述的内支撑组件131具体采用与滤袋130的内腔相适配的圆柱形笼状结构131a,该笼状结构131a的外径比滤袋130在自然状态时的内径大0~1mm;箱体110内位于孔板120下方为原气室140、位于孔板120上方为净气室150,箱体110上设有与原气室140导通的进气口111和与净气室150导通的排气口112,箱体110上方设有用于对各个滤袋130进行反冲气流清灰的反吹装置160。
上述圆柱形笼状结构131a与背景技术中提及的“袋笼”在作用上有本质区别。袋笼与滤袋之间为松配合,其作用仅仅是在过滤状态下防止滤袋因滤袋外部的气压高于滤袋内部的气压而产生内瘪。本申请的圆柱形笼状结构131a的作用是整体径向弹性张紧滤袋130,即滤袋130紧崩在圆柱形笼状结构131a外部。由于滤袋130在弹性牵拉装置170和圆柱形笼状结构131a的共同作用下呈轴向、径向的双向拉伸状态,滤袋130的变形能力呈现出介于刚性过滤元件与柔性过滤元件之间的中间状态,过滤时滤袋130仅发生较小的径向变形,通过反吹装置160对滤袋130实施反冲气流清灰时,滤袋130先会在反冲气流作用下进行较小幅度的径向膨胀,从而使滤袋130的下端向上进一步拉紧弹性牵拉装置170,而当反冲气流消失后,在弹性牵拉装置170回弹力作用下滤袋130产生轴向小幅度且较高频率的振动,产生促使使滤袋130表面的颗粒物从滤袋130表面剥离的剪切力,从而提高对滤袋130的清灰效果。
上述过滤装置中,滤袋130袋体具体包括由高强度透气织物构成的内胆及紧密附着于内胆外表面上的微孔过滤薄膜,所述内胆的纵向(对应滤袋轴向)拉伸强度≥520KN/m、横向(对应滤袋径向)拉伸强度≥380KN/m。更具体的,所述微孔过滤薄膜采用对粒径为0.1至0.12微米的颗粒物的滤除率在99%以上的膨体聚四氟乙烯膜;内胆采用玻纤织物构成;膨体聚四氟乙烯膜附着于玻纤织物上。需指出,上述滤袋130结构、性能等内容已经在参考文献中进行了详细的说明,相关内容可以参考该文献的记载,本申请对此不再进行赘述。
实施例1
如图1~3,滤袋130的袋体由所述膨体聚四氟乙烯膜和玻纤织物制成的内胆构成。内胆的厚度为0.5毫米,其纵向拉伸强度为580KN/m、横向拉伸强度为430KN/m。滤袋130长度为12米、直径为300毫米。各滤袋130的上端侧壁与孔板120的滤袋安装孔之间设有密封圈121,各滤袋130的下端均安装有刚性密封端盖134,各密封端盖134底部中心处均安装有与对应弹性牵拉装置170连接的拉钩134b,密封端盖134与圆柱形笼状结构131a为彼此独立的构件,密封端盖134与滤袋130的安装连接方式与参考文献说明书附图3所示的方式相同。弹性牵拉装置170采用弹簧缸,弹簧缸的一端与密封端盖134的下部拉钩134b连接,另一端与固定构件180连接。每个弹性牵拉装置施加于对应滤袋的拉力设定为40公斤。圆柱形笼状结构131a的外径比滤袋130在自然状态时的内径大0.5mm。正常过滤时,待过滤煤气从进气口111进入原气室140中,然后在过滤压力下穿过滤袋进入净气室150(滤袋的径向变形很小),被过滤干净的气体从排气口112排出;当滤袋表面附着一定厚度的灰尘后,通过反吹装置160作用于滤袋高压脉冲反吹气流,滤袋产生轴向小幅度高频的振动,滤袋的清灰效果良好。
实施例2
在实施例1的基础上,实施例2进一步改进了各滤袋130下端的结构。具体而言,如图3所示,其密封端盖134的顶部与圆柱形笼状结构131a底部焊接为了一体;此外,各滤袋130下端还设有内凸缘,该内凸缘包括与滤袋130一体的刚性环形支撑片132,该刚性环形密封片132的上端与密封端盖134的上端外凸缘134a之间设有密封圈133。其中,既可以通过使刚性环形支撑片132直接固定于滤袋130下端内壁上而形成所述内凸缘,也可以通过使所述刚性环形支撑片132被包入滤袋130下端翻边中形成所述内凸缘。刚性环形支撑片132由环形的钢片构成。图3中采取了通过使刚性环形支撑片132直接固定于滤袋130下端内壁上而形成所述内凸缘。将密封端盖134与圆柱形笼状结构131a焊接为一体后,方便了滤袋130、密封端盖134和笼状结构131a在箱体110内的组装(将连接密封端盖134的笼状结构131a从上往下装入滤袋130,简便快捷),同时提高了三者的整体性,减少了滤袋130与笼状结构131a之间的磨损。刚性环形支撑片132的设置提高了滤袋130下端的刚性,在刚性环形密封 片132的上端与密封端盖134的上端外凸缘134a之间设置密封圈133后,该密封圈133在刚性环形支撑片132与密封端盖134上端外凸缘134a的作用下被挤压,从而实现滤袋与密封端盖之间的密封。对比使用发现,实施例2中滤袋130与密封端盖134之间的密封效果显著优于实施例1中滤袋130与密封端盖134之间的密封效果。
实施例3
在实施例2的基础上,实施例3进一步改进了各滤袋130的在箱体110内的安装方式。具体而言,如图1、4所示,所述箱体110内安装有孔板支撑定位结构190,本实施例中,孔板支撑定位结构190上排列设置有四个过滤组件安装通孔191(如图4可见,四个过滤组件安装通孔191呈平面矩形阵列),每一个过滤组件安装通孔191上对应安装有一组过滤组件,所述过滤组件包括与孔板支撑定位结构190可拆卸密封连接的孔板120以及多个上端穿过对应的过滤组件安装通孔191与所述孔板120连接的所述滤袋130。其中,所述孔板支撑定位结构190具体由焊接固定在箱体110内壁上的型钢(具体可选择槽钢)组成,每一个过滤组件安装通孔191是由对应型钢所围成外框构成,所述孔板120与型钢之间通过螺纹连接件192连接,孔板120与型钢的配合面上还安装有密封件。通过上述改进使箱体内形成了四组分别与所述孔板支撑定位结构可拆卸连接的过滤组件,每一个过滤组件上的滤袋可以预先在过滤装置的箱体外部安装到该过滤组件的孔板上,然后再将装满了滤袋的孔板与孔板支撑定位结构在箱体内连接,从而使过滤组件与对应的过滤组件安装通孔适配,这样可以便于过滤装置的组装和维护。

Claims (10)

  1. 用于气固分离的过滤装置,包括一箱体(110),所述箱体(110)内安装有孔板(120),孔板(120)上排列安装有多个一端开口且另一端封闭的外滤式滤袋(130),所述滤袋(130)的开口端安装在孔板(120)上,滤袋(130)的封闭端连接有使该滤袋(130)轴向张紧的弹性牵拉装置(170),该弹性牵拉装置(170)连接并弹性张紧于滤袋(130)和滤袋(130)封闭端外与孔板(120)保持设定距离的固定构件(180)之间,箱体(110)内位于孔板(120)内侧为原气室(140)、位于孔板(120)外侧为净气室(150),箱体(110)上设有与原气室(140)导通的进气口(111)和与净气室(150)导通的排气口(112),箱体(110)上设有用于对各个滤袋(130)进行反冲气流清灰的反吹装置(160),其特征在于:所述滤袋(130)中设置有使该滤袋(130)整体径向弹性张紧的内支撑组件(131)。
  2. 如权利要求1所述的用于气固分离的过滤装置,其特征在于:所述内支撑组件(131)具有与滤袋(130)的内腔相适配的圆柱形笼状结构(131a),则该笼状结构(131a)的外径比滤袋(130)在自然状态时的内径大0~1mm。
  3. 如权利要求1所述的用于气固分离的过滤装置,其特征在于:所述滤袋(130)袋体包括由高强度透气织物构成的内胆及紧密附着于内胆外表面上的微孔过滤薄膜,所述内胆的纵向拉伸强度≥520KN/m、横向拉伸强度≥380KN/m。
  4. 如权利要求3所述的用于气固分离的过滤装置,其特征在于:所述微孔过滤薄膜采用对粒径为0.1至0.12微米的颗粒物的滤除率在99%以上的膨体聚四氟乙烯膜;所述内胆采用玻纤织物构成;所述膨体聚四氟乙烯膜附着于玻纤织物上。
  5. 如权利要求1至4中任意一项权利要求所述的用于气固分离的过滤装置,其特征在于:所述箱体(110)内安装有孔板支撑定位结构(190),该孔板支撑定位结构(190)上排列设置有至少两个过滤组件安装通孔(191),每一个过滤组件安装通孔(191)上对应安装有一组过滤组件,所述过滤组件包括与孔板支撑定位结构(190)可拆卸密封连接的孔板(120)以及多个开口端穿过对应的过滤组件安装通孔(191)与所述孔板(120)连接的所述滤袋(130)。
  6. 如权利要求5所述的用于气固分离的过滤装置,其特征在于:所述孔板支撑定位结构(190)由焊接固定在箱体(110)内壁上的型钢组成,每一个过滤组件安装通孔(191)是由对应型钢所围成外框构成;所述孔板(120)与型钢之间通过螺纹连接件(192)连接,孔板(120)与型钢的配合面上还安装有密封件。
  7. 如权利要求1至4中任意一项权利要求所述的用于气固分离的过滤装置,其特征在于:所述滤袋(130)封闭端安装有一刚性密封端盖(134),该密封端盖(134)底部中心处安装有与弹性牵拉装置(170)连接的拉钩(134b),密封端盖(135)的一端与内支撑组件(131)连接为一体。
  8. 如权利要求7所述的用于气固分离的过滤装置,其特征在于:所述滤袋(130)封闭端设有内凸缘,该内凸缘包括与滤袋(130)一体的刚性环形支撑片(132),该刚性环形密封片(132)的上端与密封端盖(134)的上端外凸缘(134a)之间设有密封圈(133)。
  9. 如权利要求8所述的用于气固分离的过滤装置,其特征在于:所述刚性环形支撑片(132)直接固定于滤袋(130)封闭端内壁上形成所述内凸缘;或者所述刚性环形支撑片(132)被包入滤袋(130)封闭端翻边中形成所述内凸缘。
  10. 如权利要求1至4中任意一项权利要求所述的用于气固分离的过滤装置,其特征在于:所述弹性牵拉装置(170)采用弹簧缸,弹簧缸的一端与滤袋(130)下端连接,另一端与固定构件(180)连接。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108283847A (zh) * 2018-04-12 2018-07-17 成都易态科技有限公司 内滤式过滤装置
CN108465309A (zh) * 2018-06-10 2018-08-31 常州三思环保科技有限公司 高温酸性含尘气体的冷却除尘装置
CN108722041A (zh) * 2017-04-20 2018-11-02 北新集团建材股份有限公司 收尘装置和去除附着在滤袋外表面上的粉尘的方法
CN110479003A (zh) * 2019-08-20 2019-11-22 常熟市飞奥压力容器制造有限公司 一种天然气过滤器
CN113797660A (zh) * 2021-10-19 2021-12-17 江西科霖环保装备有限公司 一种家具工厂用高效节能除尘器
CN114247218A (zh) * 2021-12-24 2022-03-29 福建龙净环保股份有限公司 一种烟气过滤装置及其清灰方法和除尘设备

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104740944B (zh) * 2015-04-02 2017-04-12 成都瑞柯林工程技术有限公司 用于气固分离的过滤装置
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CN110681222A (zh) * 2019-08-15 2020-01-14 无锡市玉净净化科技有限公司 节能型中效复合滤料空气过滤袋
CN112642227B (zh) * 2020-12-01 2021-07-06 中环环工设备无锡有限公司 一种用于钒钛磁铁矿预还原回转窑的高温尾气过滤器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293111A (en) * 1973-08-14 1981-10-06 Kennecott Corporation Bag filter support cage
CN103830976A (zh) * 2012-11-23 2014-06-04 曼·胡默尔有限公司 用于过滤元件的支撑管
CN203816386U (zh) * 2014-04-16 2014-09-10 成都瑞柯林工程技术有限公司 内滤式滤袋
CN104028059A (zh) * 2014-06-12 2014-09-10 成都瑞柯林工程技术有限公司 用于气固分离的过滤装置
CN204017572U (zh) * 2014-06-12 2014-12-17 成都瑞柯林工程技术有限公司 用于气固分离的过滤装置
CN104740944A (zh) * 2015-04-02 2015-07-01 成都瑞柯林工程技术有限公司 用于气固分离的过滤装置
CN204619581U (zh) * 2015-04-02 2015-09-09 成都瑞柯林工程技术有限公司 用于气固分离的过滤装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100758238B1 (ko) * 2001-10-08 2007-09-12 주식회사 포스코 자려진동과 내부탈진 기능을 가진 필터백 케이지 탈진장치
CN200977442Y (zh) * 2006-11-16 2007-11-21 武汉凯迪蓝天科技有限公司 袋除尘器弹性骨架布袋装置
CN201815197U (zh) * 2010-10-08 2011-05-04 溧阳平陵林机有限公司 除尘布袋
CN102527150A (zh) * 2011-12-22 2012-07-04 安徽省绩溪县华林玻璃纤维有限公司 一种利用玻璃纤维制备烟尘过滤材料的方法
CN102732658B (zh) * 2012-06-13 2014-05-07 成都瑞柯林工程技术有限公司 高炉煤气气相脉动反吹风内滤式袋式除尘器
CN203030128U (zh) * 2012-12-24 2013-07-03 江苏欧能机械制造有限公司 一种弹性振动布袋除尘器
CN104307267B (zh) * 2014-10-16 2016-03-23 成都瑞柯林工程技术有限公司 气体过滤装置
CN104353296B (zh) * 2014-11-14 2016-02-10 唐山鑫业科技有限公司 一种电热炉的烟气处理装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293111A (en) * 1973-08-14 1981-10-06 Kennecott Corporation Bag filter support cage
CN103830976A (zh) * 2012-11-23 2014-06-04 曼·胡默尔有限公司 用于过滤元件的支撑管
CN203816386U (zh) * 2014-04-16 2014-09-10 成都瑞柯林工程技术有限公司 内滤式滤袋
CN104028059A (zh) * 2014-06-12 2014-09-10 成都瑞柯林工程技术有限公司 用于气固分离的过滤装置
CN204017572U (zh) * 2014-06-12 2014-12-17 成都瑞柯林工程技术有限公司 用于气固分离的过滤装置
CN104740944A (zh) * 2015-04-02 2015-07-01 成都瑞柯林工程技术有限公司 用于气固分离的过滤装置
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CN108722041B (zh) * 2017-04-20 2023-12-12 北新集团建材股份有限公司 收尘装置和去除附着在滤袋外表面上的粉尘的方法
CN108283847A (zh) * 2018-04-12 2018-07-17 成都易态科技有限公司 内滤式过滤装置
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CN108465309B (zh) * 2018-06-10 2023-05-05 常州三思环保科技有限公司 高温酸性含尘气体的冷却除尘装置
CN110479003A (zh) * 2019-08-20 2019-11-22 常熟市飞奥压力容器制造有限公司 一种天然气过滤器
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