CN114669127A - Method for reducing emission of particles of bag type dust collector - Google Patents
Method for reducing emission of particles of bag type dust collector Download PDFInfo
- Publication number
- CN114669127A CN114669127A CN202210273568.5A CN202210273568A CN114669127A CN 114669127 A CN114669127 A CN 114669127A CN 202210273568 A CN202210273568 A CN 202210273568A CN 114669127 A CN114669127 A CN 114669127A
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- Prior art keywords
- flexible connection
- bag
- dust collector
- particles
- emission
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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
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
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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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
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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
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
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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
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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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4272—Special valve constructions adapted to filters or filter elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2271/02—Gaskets, sealings
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a method for reducing the emission of particles of a bag type dust collector, which comprises the following steps: s1, disassembling the connecting pin between the lower end of the off-line valve cylinder and the disc; s2, welding a flange with a flange at one end and in flexible connection with the disc; s3, reinstalling the connecting pin, covering the dust removal cover plate, and starting the fan; the invention provides a method for efficiently and conveniently reducing the emission of particles of a bag type dust collector.
Description
Technical Field
The invention relates to the technical field of bag type dust collectors, in particular to a method for reducing the emission of particles of a bag type dust collector.
Background
The cloth bag type dust collector is a dry dust filter. As shown in fig. 1, it is suitable for capturing fine, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt, the dust-containing gas is filtered by the filtering action of the fiber fabric, after the dust-containing gas enters the bag type dust collector, dust with large particles and large specific gravity falls into the dust hopper due to the sedimentation of the gravity, and when the gas containing fine dust passes through the filter material, the dust is blocked, so that the gas is purified.
However, the off-line valve of the bag type dust collector is a weak link, the off-line valve can not be closed tightly, the broken cloth bag is caused in the back flushing process, smoke dust enters a fan through an off-line valve gap, and is directly discharged into the atmosphere through a chimney, so that the particulate matters exceed the standard.
In conclusion, the prior art still lacks a method for efficiently and conveniently reducing the emission of particles of a bag-type dust collector.
Disclosure of Invention
The invention provides a method for efficiently and conveniently reducing the emission of particles of a bag type dust collector.
To achieve the purpose, the invention provides the following technical scheme:
the invention provides a method for reducing the emission of particles of a bag type dust collector, which comprises the following steps:
s1, disassembling a connecting pin for connecting the lower end of the off-line valve cylinder with the disc;
s2, welding a flange with a flange at one end and in flexible connection with the disc;
and S3, reinstalling the connecting pin, covering the dedusting cover plate, and starting the fan.
Preferably, the diameter of the flexible connection is 350-450mm, and the length of the flexible connection is 45-55 mm. Further preferably, the flexible connection has a diameter of 400mm and a length of 50 mm.
Preferably, the emission standard of the particles of the bag-type dust collector is 6-8mg/m 3。
Preferably, step S1 is preceded by: and (4) stopping the fan, confirming the three parts of the tag hanging during power failure, opening the upper cover of the dust removal box body, and enabling the maintainer to wear a respirator to enter the dust removal box body.
Preferably, the flexible connection comprises a cylindrical spring and a protective cover sleeved on an outer ring of the cylindrical spring.
Preferably, the material of the protective cover comprises woven filter cloth and non-woven felt.
Preferably, the surface of the protective cover is sprayed with an adsorbent.
Compared with the prior art, the invention has the beneficial effects and remarkable progresses that:
1. the unorganized emission of dust can be more effectively reduced;
2. the environment is more protected;
3. simple operation and less investment.
Drawings
To more clearly illustrate the technical solution of the present invention, the drawings required for the embodiment of the present invention will be briefly described below.
It should be apparent that the drawings in the following description are only drawings of some embodiments of the invention, and that other drawings can be obtained by those skilled in the art without inventive exercise, and the other drawings also belong to the drawings required by the embodiments of the invention.
FIG. 1 is a schematic diagram of a bag house dust collector according to an embodiment of the present invention;
FIG. 2 is a three-view illustration of a bin of a bag house employing a method of reducing emissions of bag house particulates in accordance with embodiments of the present invention;
FIG. 3 is a schematic view of a portion of a bin of a bag house employing a method of reducing emissions of bag house particulates in accordance with embodiments of the present invention;
FIG. 4 is a flow chart of an embodiment of the present invention employing a method of reducing emissions of bag house particulate;
reference numeral, 1, off-line valve, 2, disc, 3, connecting pin, 4, top plate, 5, flexible connection, 6, flexible connection flange.
Detailed Description
In order to make the objects, technical solutions, beneficial effects and significant progress of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention.
It is to be understood that all of the described embodiments are merely some, and not all, embodiments of the invention; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first", "second" and "third" (if present) and the like in the description and the claims of the present invention are used for distinguishing different objects and are not used for describing a specific order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
It is to be understood that:
in the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be understood broadly, and for example, may be fixedly connected, detachably connected, movably connected, or integrated; either directly or indirectly through intervening media, intangible signal, or even optical, communication between two elements, or an interaction between two elements, unless expressly limited otherwise.
The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
It should be further noted that the following embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
The technical means of the present invention will be described in detail below with specific examples.
Example 1
As shown in fig. 2 and 3, a bin of a bag-type dust collector for reducing the particulate emission of the bag-type dust collector is shown, and comprises an off-line valve 1, a disc 2, a connecting pin 3, a top plate 4, a flexible joint 5 and a flexible connecting flange 6, wherein the flexible connecting flange 6 is connected with the disc 2, and one end of the off-line valve 1 and the connecting pin 3 are arranged in the flexible joint 5.
Example 2
As shown in FIG. 4, a flow diagram of a method of reducing emissions of baghouse particulates is shown, comprising the steps of:
s1, disassembling a connecting pin for connecting the lower end of the cylinder of the off-line valve with the disc;
s2, welding a flange with a flange at one end and in flexible connection with the disc;
and S3, reinstalling the connecting pin, covering the dedusting cover plate, and starting the fan.
Preferably, the flexible connection has a diameter of 400mm and a length of 50 mm.
Preferably, the emission standard of the particles of the bag-type dust collector is 6-8mg/m3。
Preferably, step S1 is preceded by: and stopping the fan, confirming the power failure hang tag in three aspects, opening the upper cover of the dust removal box body, and enabling the maintainer to wear the respirator to enter the dust removal box body.
Preferably, the flexible connection comprises a cylindrical spring and a protective cover sleeved on an outer ring of the cylindrical spring.
Preferably, the protective cover is textile filter cloth sprayed with the adsorbent.
In summary, the method for reducing the emission of the particulate matters of the bag-type dust collector provided by the embodiment solves the problem that the off-line valve of the bag-type dust collector is not tightly closed, so that the smoke dust enters the fan through the off-line valve gap in the back blowing process of the damaged bag, passes through the chimney, is directly discharged to the atmosphere, and the particulate matters exceed the standard.
Example 3
Adopting the particle emission standard of 10mg/m3The following dust removing equipment has the problems that a dust removing cloth bag in a certain bin environment is damaged, an off-line valve is not closed tightly, and two factors are superposed.
Detecting the emission of the particles of the chimney of the dust removing equipment to be 10mg/m3To 30g/m3In excess of the national environmental regulationsAnd (4) particulate matter emission standard.
By adopting the method of the embodiment 2, the flexible connection is additionally arranged on the lower disk of the off-line valve, the sealing effect can be realized, the sealing effect between the disk and the top plate is good, dust is blocked outside the flexible connection and cannot enter the flue and is exhausted to the atmosphere through the chimney, and after the flexible connection of the embodiment is additionally arranged, even if the cloth bag is provided with a damaged bin, the emission standard of the chimney is 6-8mg/m3And the environment-friendly material reaches the national environmental protection standard.
During the description of the above description:
the description of the terms "this embodiment," "an embodiment of the invention," "as shown at … …," "further improved technical solution," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention; in this specification, the schematic representations of the terms used above are not necessarily for the same embodiment or example, and the particular features, structures, materials, or characteristics described, etc., may be combined or brought together in any suitable manner in any one or more embodiments or examples; furthermore, those of ordinary skill in the art may combine or combine features of different embodiments or examples and features of different embodiments or examples described in this specification without undue conflict.
Finally, it should be noted that:
the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same;
although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes and modifications may be made, and equivalents may be substituted for elements thereof without departing from the scope of the embodiments of the present invention.
Claims (8)
1. A method for reducing particulate matter emission of a bag filter, comprising the steps of:
s1, disassembling a connecting pin for connecting the lower end of the cylinder of the off-line valve with the disc;
s2, welding a flange with a flange at one end for flexible connection with a disc;
and S3, reinstalling the connecting pin, covering the dust removal cover plate, and starting the fan.
2. The method as claimed in claim 1, wherein the flexible connection has a diameter of 350-450mm and a length of 45-55 mm.
3. A method of reducing emissions of particulate from a baghouse as set forth in claim 2, wherein said flexible coupling has a diameter of 400mm and a length of 50 mm.
4. The method of claim 1, wherein the emission standard of the bag house particulates is 6-8mg/m3。
5. The method of claim 1, further comprising, prior to step S1: and (4) stopping the fan, confirming the three parts of the tag hanging during power failure, opening the upper cover of the dust removal box body, and enabling the maintainer to wear a respirator to enter the dust removal box body.
6. The method of claim 1, wherein the flexible connection comprises a cylindrical spring and a boot that fits over an outer ring of the cylindrical spring.
7. The method of claim 6, wherein the material of the protective cover comprises woven filter cloth or non-woven felt.
8. A method of reducing emissions of bag house dust particles as claimed in claim 6 or 7, wherein the surface of the protective cover is coated with an adsorbent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210273568.5A CN114669127A (en) | 2022-03-19 | 2022-03-19 | Method for reducing emission of particles of bag type dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210273568.5A CN114669127A (en) | 2022-03-19 | 2022-03-19 | Method for reducing emission of particles of bag type dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114669127A true CN114669127A (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210273568.5A Pending CN114669127A (en) | 2022-03-19 | 2022-03-19 | Method for reducing emission of particles of bag type dust collector |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202834131U (en) * | 2012-09-26 | 2013-03-27 | 洁华控股股份有限公司 | Double sealing elevation valve for impulse bag type dust removing system |
| WO2019105313A1 (en) * | 2017-11-28 | 2019-06-06 | 山东盛华投资有限责任公司 | Dust removing device for bag-type dust collector |
| CN109847477A (en) * | 2019-03-22 | 2019-06-07 | 无锡红旗除尘设备有限公司 | A kind of pulse jet fiber bag precipitator that can stablize minimum discharge |
| CN212998915U (en) * | 2020-07-23 | 2021-04-20 | 赤峰焱邦环保科技发展有限公司 | Easy-maintenance off-line pulse dust-cleaning cloth bag dust remover |
| CN214809206U (en) * | 2021-03-19 | 2021-11-23 | 盐城市兰丰环境工程科技有限公司 | Air box pulse dust collector |
-
2022
- 2022-03-19 CN CN202210273568.5A patent/CN114669127A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202834131U (en) * | 2012-09-26 | 2013-03-27 | 洁华控股股份有限公司 | Double sealing elevation valve for impulse bag type dust removing system |
| WO2019105313A1 (en) * | 2017-11-28 | 2019-06-06 | 山东盛华投资有限责任公司 | Dust removing device for bag-type dust collector |
| CN109847477A (en) * | 2019-03-22 | 2019-06-07 | 无锡红旗除尘设备有限公司 | A kind of pulse jet fiber bag precipitator that can stablize minimum discharge |
| CN212998915U (en) * | 2020-07-23 | 2021-04-20 | 赤峰焱邦环保科技发展有限公司 | Easy-maintenance off-line pulse dust-cleaning cloth bag dust remover |
| CN214809206U (en) * | 2021-03-19 | 2021-11-23 | 盐城市兰丰环境工程科技有限公司 | Air box pulse dust collector |
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