CN113504165A - Fine particle collection system suitable for fixed source flue gas - Google Patents
Fine particle collection system suitable for fixed source flue gas Download PDFInfo
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- CN113504165A CN113504165A CN202110658522.0A CN202110658522A CN113504165A CN 113504165 A CN113504165 A CN 113504165A CN 202110658522 A CN202110658522 A CN 202110658522A CN 113504165 A CN113504165 A CN 113504165A
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 69
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Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
- G01N15/0618—Investigating concentration of particle suspensions by collecting particles on a support of the filter type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means, e.g. by light scattering, diffraction, holography or imaging
- G01N2015/0244—Investigating particle size or size distribution by optical means, e.g. by light scattering, diffraction, holography or imaging with cutting-out molecular scatter
Abstract
A system suitable for collecting fine particulate matters in fixed source flue gas comprises an introducing pipeline, a PM10 particulate matter cutter, a power supply device, a heat preservation pipeline, a gas ring vacuum pump, a PM10-PM1.0 impactor, a silica gel drying device, a mass flow controller and a sampling collecting pump, wherein a flue gas sampling port is arranged at the front end of the introducing pipeline, a flue gas valve is arranged on the introducing pipeline, the introducing pipeline is communicated with an inlet of the PM10 particulate matter cutter, an outlet of the PM10 particulate matter cutter is communicated with an inlet of the PM10-PM1.0 impactor through the gas ring vacuum pump, the power supply device is provided with a power supply junction box, an electric tracing wire and a heat preservation pipeline, and the pipeline in front of the impactor is electrically heated and preserved; the outlet of the PM10-PM1.0 impact instrument is sequentially connected with a silica gel drying device, a mass flow controller and a sampling and collecting pump. The invention provides a system suitable for collecting fine particles in fixed source flue gas, which improves the accuracy of sampling analysis, has a simple structure, occupies a small area, is convenient to operate and greatly reduces equipment investment.
Description
Technical Field
The invention relates to the technical field of acquisition systems, in particular to an acquisition system suitable for collecting fine particulate matters in fixed source flue gas.
Background
The fixed source smoke, namely the domestic garbage incinerator, the sludge incineration and the pollution source that the waste gas produced by taking gas as fuel or raw material is discharged to the atmosphere in the combustion process. Typically, the fixed source flue gas includes SO2NOx, particulate matter, and the like. The smoke fine particles are particles with aerodynamic diameter less than or equal to 10 mu m, and the fine particles discharged into the atmospheric environment can affect human health and environment, for example, human body can stimulate respiratory system to cause cough, dyspnea, arrhythmia and other diseases; has a significant impact on air quality conditions, air visibility, atmospheric temperature, etc.
The emission of fine particles in the flue gas of the fixed source is gradually strict, and in order to carry out chemical composition analysis, quality quantity concentration monitoring and the like on the fine particles in the flue gas, fine particle emission supervision and management are required. Therefore, the fine particles in the flue gas of the fixed source must be scientifically and reasonably collected and sampled and analyzed.
In the development achievement of the fine particles collection system technique at present domestic, mainly include: (1) a sampling system (patent number: CN 204479368U) suitable for collecting fine particles in smoke containing liquid drops from a fixed source solves the problem of collecting the fine particles in the smoke with high humidity or liquid drops at present, can remove the liquid drops in the smoke and prevent the condensation of water vapor. The principle of this system, flow velocity and the air flow of flue gas are tested according to gas mass flowmeter, calculate through the result and select the nozzle diameter, install suitable sampling nozzle, have the liquid drop then earlier through gas-liquid cyclone preliminary treatment in the flue gas, will make the sampling rifle by nafion tube bank and stretch into the flue, dilute the flue gas through the efflux diluter, dilute after according with emission standard, an gas outlet communicates with each other with the atmosphere, another gas outlet is through particulate matter cutterbar and sampling membrane, sample through the sampling pump. (2) An on-line atmospheric fine particulate concentration and collection device and a method (patent number: CN 111855375A), the patent describes an on-line atmospheric fine particle concentration and collection device and a method, and is characterized in that the patent provides an atmospheric fine particle treatment device which can simultaneously work for on-line concentration and collection, through including PM10, PM5, the tertiary collision formula PM2.5 cutting head of PM2.5 cuts categorised to the atmosphere fine particle thing, rethread water tank system carries out heat treatment, it handles through virtual cutterbar to get into virtual cutting system, be used for circulation condensate to carry out the condensation to saturated particle thing through condensation circulating system afterwards and grow up, carry out online concentrated appearance collection through devices such as biological sampling bottle, solenoid valve and computer subdivision constant flow pump after the condensation, gather the sample cell on the test tube carousel with the sample, carry out subsequent analysis to it. (3) A garbage incineration plant atmospheric particulate matter sampling system (patent number: CN 209264378U) is characterized in that filtered fine particulate matters can be taken out for further research. This sampling system main part is for gathering the box, can sample different particle size, wherein waste gas samples through one-level granule filter and second grade granule filter, keep away from the other one side of gathering the box and be equipped with the handle, the inside of gathering the box has the guide rail, the inside one-level granule filter and the second grade granule filter that are equipped with of inserting the platform through sampling can sample the different particle size in the atmosphere, guide rail cooperation spout is convenient for take out the granule filter, take out the different particle sample of collection, waste gas after the sampling is handled through activated carbon filter afterwards. (4) An atmospheric particulate collection device (patent number: CN 212110801U) comprises three parts, namely an air inlet assembly, a sampling assembly and an air outlet assembly, wherein ambient air particulate is preliminarily treated through an air inlet pipe and a heating thermostat, the collection process of the particulate in the air is kept in a constant temperature state, the atmospheric particulate is collected at the most appropriate temperature, the influence of the temperature on the collection of the particulate in the air is reduced, and the system can be applied to a low-temperature environment. The filter membrane on the rotation rack can also be installed and replaced through the rotating shaft, wherein the filter membrane is respectively a PM100 filter membrane, a PM10 filter membrane and a PM2.5 filter membrane, three different types of atmospheric particulates can be collected simultaneously, and finally the atmospheric particulates are collected through the air outlet pipe and the exhaust pump.
In the above technical method of the fine particulate matter collecting system, although the system has a certain efficiency and a certain feasibility, the fine particulate matter can be collected with a higher efficiency. However, for patent (1), it is not clearly shown that the collection size of fine particles in the flue gas containing liquid drops from a fixed source cannot be collected at the same time, and the focus is on the treatment of the flue gas containing liquid drops; for the patent (2), because the atmospheric particulate matter is divided and collected, three-level collision type PM2.5 cutting heads of PM10, PM5 and PM2.5 are used, which is equivalent to only filtering fine particulate matter PM2.5 once, and the filtering is not thorough; as for patent (3), the system is an atmospheric particulate sampling system of a waste incineration plant, the system is too simple, the main body is a collecting box body, and the filtering sizes of a primary particle filtering plate and a secondary particle filtering plate are not described in detail; for patent (4), the device is an atmospheric particulate matter collecting device, and the PM100 filter membrane, the PM10 filter membrane and the PM2.5 filter membrane are adopted for filtering, so that collected fine particulate matters are not comprehensive enough. These patents do not describe the mechanism of filtration in detail or the filtration is not comprehensive enough to can miss collection and sampling to some fine particles, for example fine particles such as PM2.5 and PM1.0, and this can lead to the collection of fine particles incomplete, can not detailed analysis fine particles's chemical composition, quality quantity concentration, particle size distribution rule, so that the analysis produces the deviation, if can be meticulous sampling analysis again, will improve the accuracy of analysis greatly, reduce the harm of fine particles in the fixed source flue gas to environment or human body.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the fine particulate matter collecting system which is suitable for the fixed source flue gas, improves the accuracy of sampling analysis, has a simple structure, small occupied area of the device, is convenient to operate and greatly reduces the equipment investment.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a system suitable for collecting fine particulate matters in fixed source flue gas comprises an introducing pipeline, a PM10 particulate matter cutter, a power supply device, a heat preservation pipeline, a gas ring vacuum pump, a PM10-PM1.0 impactor, a silica gel drying device, a mass flow controller and a sampling collecting pump, wherein a flue gas sampling port is arranged at the front end of the introducing pipeline, a flue gas valve is arranged on the introducing pipeline, the introducing pipeline is communicated with an inlet of the PM10 particulate matter cutter, an outlet of the PM10 particulate matter cutter is communicated with an inlet of the PM10-PM1.0 impactor through the gas ring vacuum pump, the power supply device is provided with a power supply junction box, an electric tracing wire and a heat preservation pipeline, and the pipeline in front of the impactor is electrically heated and preserved; the outlet of the PM10-PM1.0 impact instrument is sequentially connected with a silica gel drying device, a mass flow controller and a sampling and collecting pump.
Further, PM10 particulate matter cutterbar carries out the preliminary treatment to fixed source flue gas, carries out the entrapment for the first time to PM10 entrapment board through PM10 filter membrane, PM10 particulate matter cutterbar includes first entry filter screen, preliminary treatment inlet hole board, preliminary treatment entrapment board, PM10 filter membrane, PM10 entrapment board and first gas outlet, and the cavity upper portion import of PM10 particulate matter cutterbar sets up first entry filter screen, top-down sets gradually preliminary treatment inlet hole board, preliminary treatment entrapment board, PM10 filter membrane, PM10 entrapment board in the cavity, the lower part of cavity is equipped with first gas outlet.
Still further, the PM10-PM1.0 impactor included four filtration processes, PM10 collection plate collection, PM2.5 collection plate collection, PM1.0 collection plate collection using nozzles, and finally PM1.0 filtration membrane collection, with both collection plates and filtration membranes removable. The cleaning work of the nozzle and the collecting plate is convenient.
The PM10-PM1.0 impactor comprises a second inlet filter screen, a first-stage impact plate, a nozzle, a PM10 capture plate, a second-stage impact plate, a PM2.5 capture plate, a third-stage impact plate, a PM1.0 capture plate, a PM1.0 filter membrane and a second air outlet, wherein the second inlet filter screen is arranged at an inlet at the upper part of a cavity of the PM10-PM1.0 impactor, the first-stage impact plate, the PM10 capture plate, the second-stage impact plate, the PM2.5 capture plate, the third-stage impact plate, the PM1.0 capture plate and the PM1.0 filter membrane are sequentially arranged in the cavity from top to bottom, the nozzle is arranged on the first-stage impact plate, and the second air outlet is arranged at the lower part of the cavity.
The gas ring vacuum pump for the fine particle system in the fixed source flue gas pumps and makes the flue gas of burning get into the system, and the block terminal carries out the electrical heating heat preservation to pipeline and equipment before the impact appearance, avoids the vapor condensation. The flue gas gets into PM10 particulate matter cutterbar through the entry filter screen, carries out the filtration of preliminary treatment orifice plate and collects to the flue gas in the cutterbar, and the rethread PM10 filter membrane filters the entrapment that carries out PM10 particulate matter, accomplishes PM 10's preliminary filtration.
The flue gas after primary treatment is sucked by a vacuum pump and enters a PM10-PM1.0 impactor, the flue gas is primarily filtered through an inlet filter screen, the flue gas passes through a first-stage impact plate, after being accelerated by a nozzle, large particles have large inertia and are deposited on a PM10 capture plate, small particles are discharged along with air flow by turning due to small inertia and enter a second-stage impact plate, particulate matters larger than PM2.5 are deposited on a PM2.5 capture plate, the residual flue gas enters a third-stage impact plate, particulate matters larger than PM1.0 are deposited on the PM1.0 capture plate, and the particulate matters missed by the capture plate are finally filtered through a PM1.0 filter membrane and are discharged through an air outlet; and then the silicon gel is dried and then enters a sampling and collecting pump after being regulated by a mass flow controller. And sampling and collecting different particle sizes of fine particles in the flue gas of the fixed source.
The invention has the following beneficial effects: firstly, the fixed source flue gas is insulated by adopting an electric heat tracing line and an insulation pipeline, so that the flue gas is prevented from being condensed, the fixed source flue gas containing liquid drops can be analyzed, the insulation temperature of the electric heat tracing line is stable, and the insulation temperature of the material can be changed according to requirements; secondly, collecting and sampling particulate matters with different particle sizes to obtain PM10, PM2.5 and PM1.0, and performing multiple filtration on particulate matters such as PM10 and PM1.0 to improve the accuracy of sampling analysis; thirdly, a silica gel drying system is adopted in the system, so that the drying efficiency is improved; fourthly, the system has simple structure, small occupied area of the device and convenient operation, and greatly reduces the equipment investment.
Drawings
FIG. 1 is a schematic diagram of a system suitable for collecting fine particulate matter in stationary source flue gas.
FIG. 2 is a cross-sectional view of a PM10 particulate matter cutter.
FIG. 3 is a cross-sectional view of the PM10-PM1.0 impactor.
The device comprises a flue gas sampling port 1, a flue gas valve 2, a PM10 particulate matter cutter 4, an air ring vacuum pump 5, a power supply device 6, a PM10-PM1.0 impactor 7, a silica gel drying device 8, a mass flow controller 9, a sampling collection pump 10, a dust cover 11, an inlet filter screen 12, a pretreatment air inlet plate 13, a pretreatment collection plate 14, a PM10 filter membrane 15, a PM10 collection plate 16, an air outlet 17, an inlet filter screen 18, a first-stage impact plate 19, a nozzle 20, a PM10 collection plate 21, a second-stage impact plate 22, a PM2.5 collection plate 23, a third-stage impact plate 24, a PM1.0 collection plate 25, a PM1.0 filter membrane 26 and an air outlet.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1, a system suitable for collecting fine particulate matters in fixed source flue gas comprises an introducing pipeline, a PM10 particulate matter cutter, a power supply device 5, a heat preservation pipeline, a gas ring vacuum pump 4, a PM10-PM1.0 impactor 6, a silica gel drying device 7, a mass flow controller 8 and a sampling collection pump 9, wherein the front end of the introducing pipeline is a flue gas sampling port 1, a flue gas valve 2 is installed on the introducing pipeline, the introducing pipeline is communicated with an inlet of the PM10 particulate matter cutter, the PM10 particulate matter cutter pretreats the fixed source flue gas, and a PM10 trapping plate is trapped for the first time through a PM10 filter membrane; an outlet of the PM10 particulate matter cutter is communicated with an inlet of the PM10-PM1.0 impact instrument through an air ring vacuum pump, a power supply device 5 is provided with a power supply junction box, an electric tracing line and a heat preservation pipeline to carry out electric heating and heat preservation on a pipeline and equipment in front of the impact instrument, the fixed source flue gas before entering the PM10-PM1.0 impact instrument is not condensed by an electric tracing method, and the heat preservation temperature of the pipeline is usually between 150 ℃ and 205 ℃; the PM10-PM1.0 impact instrument comprises four filtering processes, wherein a nozzle is used for carrying out PM10 collection plate collection, PM2.5 collection plate collection, PM1.0 collection plate collection, and finally a PM1.0 filter membrane is used for carrying out final collection, and the collection plate and the filter membrane can be taken out, so that the cleaning work of the nozzle and the collection plate is convenient; the outlet of the PM10-PM1.0 impactor is sequentially connected with a silica gel drying device 7, a mass flow controller 8 and a sampling collection pump, the drying device adopts silica gel for drying, after the silica gel in the silica gel drying device adsorbs water, the water is removed in a desorption mode, and usually the temperature of 120 ℃ and 180 ℃ is a proper desorption heating temperature; the mass flow controller adjusts mass flow and prevents from damaging the sampling pump.
The PM10 particulate matter cutter 3 comprises a first inlet filter screen 11, a pretreatment air inlet plate 12, a pretreatment trapping plate 13, a PM10 filter membrane 14, a PM10 trapping plate 15 and a first air outlet 16, wherein the first inlet filter screen 11 is arranged at an inlet at the upper part of a cavity of the PM10 particulate matter cutter 3, the pretreatment air inlet plate 12, the pretreatment trapping plate 13, the PM10 filter membrane 14 and the PM10 trapping plate 15 are sequentially arranged in the cavity from top to bottom, and the first air outlet 16 is arranged at the lower part of the cavity; the top of the cavity is provided with a dust cover 10.
The PM10-PM1.0 impact instrument 6 comprises a second inlet filter screen 17, a first-stage impact plate 18, a nozzle 19, a PM10 trapping plate 20, a second-stage impact plate 21, a PM2.5 trapping plate 22, a third-stage impact plate 23, a PM1.0 trapping plate 24, a PM1.0 filter membrane 25 and a second air outlet 26, wherein the second inlet filter screen 17 is arranged at an inlet at the upper part of a cavity of the PM10-PM1.0 impact instrument 3, the first-stage impact plate 18, the PM10 trapping plate 20, the second-stage impact plate 21, the PM2.5 trapping plate 22, the third-stage impact plate 23, the PM1.0 trapping plate 24 and the PM1.0 filter membrane 25 are sequentially arranged in the cavity from top to bottom, the nozzle 19 is arranged on the first-stage impact plate 18, and the second air outlet 26 is arranged at the lower part of the cavity.
The gas ring vacuum pump for the fine particle system in the fixed source flue gas pumps and makes the flue gas of burning get into the system, and the block terminal carries out the electrical heating heat preservation to pipeline and equipment before the impact appearance, avoids the vapor condensation. The flue gas gets into PM10 particulate matter cutterbar through the entry filter screen, carries out the filtration of preliminary treatment orifice plate and collects to the flue gas in the cutterbar, and the rethread PM10 filter membrane filters the entrapment that carries out PM10 particulate matter, accomplishes PM 10's preliminary filtration.
Flue gas that preliminary treatment passed through the vacuum pump suction and gets into PM10-PM1.0 impacter, carry out prefiltration through the entry filter screen earlier, through first order impingement plate, the flue gas is great by large granule thing inertia behind the nozzle acceleration, deposit PM10 entrapment board, and the tiny particle gets into the second grade impingement plate because less inertia turns round the discharge along with the air current, the particulate matter that is greater than PM2.5 deposits PM2.5 entrapment board, remaining flue gas gets into third grade impingement plate, the particulate matter that is greater than PM1.0 deposits PM1.0 entrapment board, the particulate matter that the entrapment board was omitted carries out final filtration through PM1.0 filter membrane, discharge through the gas outlet. And then the silicon gel is dried and then enters a sampling and collecting pump after being regulated by a mass flow controller. And sampling and collecting different particle sizes of fine particles in the flue gas of the fixed source.
The specific work flow of the system is shown in figure 1.
If particulate matter larger than PM10 is desired, sampling collection can be performed by taking out the PM10 filter membrane and the trapping plate in the PM10 particulate matter cutter; if particulate matters larger than or equal to PM2.5 are required to be obtained, a PM2.5 collecting plate can be taken out from the PM10-PM1.0 impact instrument for sampling and collection, the principle of the collecting plate is that large particles are accelerated by a nozzle to increase the inertia, and small particles are discharged along with the air flow in a turning way and enter the next-stage impact plate; if the fine particulate matters of which the particle size is larger than or equal to PM1.0 are required to be obtained, taking out the PM1.0 trapping plate and the filter membrane in the impactor, and performing multiple filtration on the fine particulate matters of PM 1.0; and (4) drying the particulate matters smaller than PM1.0 by silica gel, adjusting by a mass flow controller, and collecting in a vacuum pump.
Fine particles thing collection system makes the flue gas get into flue gas sampling port 2 with the suction of gas ring vacuum pump 4 in the fixed source flue gas, the flow of gathering the flue gas is controlled through flue gas valve 2, fixed source flue gas gets into PM10 particulate matter cutterbar 3 after 11 net prefiltration through first entry filtration, carry out the filtration of preliminary treatment orifice plate 12 and collect in preliminary treatment entrapment board 13 to the flue gas in the cutterbar, filter and with PM10 particulate matter entrapment in PM10 entrapment board 15 through PM10 filter membrane 14, accomplish PM 10's prefiltration, discharge through first gas outlet 16. Before the flue gas enters the PM10-PM1.0 impact instrument, the heat-insulating pipeline is electrically heated and insulated through the power supply device 5, so that the condensation of water vapor is avoided.
The smoke primarily treated by the PM10 particle cutter is sucked by a vacuum pump to provide power to enter (6) a PM10-PM1.0 impactor, is primarily filtered by a second inlet filter screen 17, the flue gas accelerated by the nozzles 19 has a large inertia of large particles through the first stage impingement plate 18, deposits on the PM10 trap plate 19, and small particles are discharged along with the air flow in a turning way due to smaller inertia and enter a (20) second-stage impact plate, particulate matters larger than PM2.5 are deposited on a PM2.5 collecting plate 21, the rest flue gas enters a third-stage impact plate 22, particulate matters larger than PM1.0 are deposited on a PM1.0 collecting plate 23, the particulate matters missed by the collecting plate are finally filtered through a PM1.0 filter membrane and are discharged through a second air outlet 26, the filtered flue gas is dried by a silica gel drying device 7 and then enters a sampling and collecting pump 9 after being regulated by a mass flow controller 8, and sampling and collecting of fine particulate matters in the fixed-source flue gas with different particle sizes are completed.
The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, which are intended for purposes of illustration only. The scope of the present invention should not be construed as being limited to the particular forms set forth in the examples, but rather as being defined by the claims and the equivalents thereof which can occur to those skilled in the art upon consideration of the present inventive concept.
Claims (4)
1. A system suitable for collecting fine particulate matters in fixed source flue gas is characterized by comprising an introducing pipeline, a PM10 particulate matter cutter, a power supply device, a heat preservation pipeline, a gas ring vacuum pump, a PM10-PM1.0 impactor, a silica gel drying device, a mass flow controller and a sampling collection pump, wherein the front end of the introducing pipeline is a flue gas sampling port, a flue gas valve is installed on the introducing pipeline, the introducing pipeline is communicated with an inlet of the PM10 particulate matter cutter, an outlet of the PM10 particulate matter cutter is communicated with an inlet of the PM10-PM1.0 impactor through the gas ring vacuum pump, the power supply device is provided with a power supply junction box, an electric heating wire and a heat preservation pipeline, and the pipeline in front of the impactor is electrically heated and insulated; the outlet of the PM10-PM1.0 impact instrument is sequentially connected with a silica gel drying device, a mass flow controller and a sampling and collecting pump.
2. The system for collecting fine particulate matters in stationary source flue gas as claimed in claim 1, wherein the PM10 particulate matter cutter is used for pretreating the stationary source flue gas, and for collecting the PM10 collection plate for the first time through the PM10 filter membrane, the PM10 particulate matter cutter comprises a first inlet filter screen, a pretreatment air inlet plate, a pretreatment collection plate, a PM10 filter membrane, a PM10 collection plate and a first air outlet, a first inlet filter screen is arranged at an inlet at the upper part of the cavity of the PM10 particulate matter cutter, a pretreatment air inlet plate, a pretreatment collection plate, a PM10 filter membrane and a PM10 collection plate are arranged in the cavity in sequence from top to bottom, and a first air outlet is arranged at the lower part of the cavity.
3. The system for collecting the fine particulate matters in the flue gas of the fixed source as claimed in claim 1 or 2, wherein the PM10-PM1.0 impactor comprises four filtering processes, a PM10 capture plate capture, a PM2.5 capture plate capture, a PM1.0 capture plate capture and a PM1.0 filter membrane capture are carried out by using a nozzle, and the capture plates and the filter membranes are removable. The cleaning work of the nozzle and the collecting plate is convenient.
4. The system for collecting the fine particulate matters in the fixed-source flue gas as claimed in claim 3, wherein the PM10-PM1.0 impactor comprises a second inlet filter screen, a first stage impact plate, a nozzle, a PM10 capture plate, a second stage impact plate, a PM2.5 capture plate, a third stage impact plate, a PM1.0 capture plate, a PM1.0 filter membrane and a second gas outlet, the second inlet filter screen is arranged at an inlet of the upper part of the cavity of the PM10-PM1.0 impactor, the first stage impact plate, the PM10 capture plate, the second stage impact plate, the PM2.5 capture plate, the third stage impact plate, the PM1.0 capture plate and the PM1.0 filter membrane are sequentially arranged in the cavity from top to bottom, the nozzle is arranged on the first stage impact plate, and the second gas outlet is arranged at the lower part of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110658522.0A CN113504165A (en) | 2021-06-15 | 2021-06-15 | Fine particle collection system suitable for fixed source flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110658522.0A CN113504165A (en) | 2021-06-15 | 2021-06-15 | Fine particle collection system suitable for fixed source flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113504165A true CN113504165A (en) | 2021-10-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115112787A (en) * | 2022-05-31 | 2022-09-27 | 永春县产品质量检验所(福建省香产品质量检验中心、国家燃香类产品质量监督检验中心(福建)) | Polycyclic aromatic hydrocarbon detection method |
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| CN201622187U (en) * | 2009-12-23 | 2010-11-03 | 青岛崂山电子仪器总厂有限公司 | Multistage particulate matter cutter |
| CN206848008U (en) * | 2017-07-10 | 2018-01-05 | 天津市众航环保科技有限公司 | A kind of stationary source pm emission pollutes matter collection device |
| CN212932073U (en) * | 2020-09-09 | 2021-04-09 | 山东景飞科技有限公司 | Medium-flow environment atmospheric particulate sampling device |
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| CN201622187U (en) * | 2009-12-23 | 2010-11-03 | 青岛崂山电子仪器总厂有限公司 | Multistage particulate matter cutter |
| CN206848008U (en) * | 2017-07-10 | 2018-01-05 | 天津市众航环保科技有限公司 | A kind of stationary source pm emission pollutes matter collection device |
| CN212932073U (en) * | 2020-09-09 | 2021-04-09 | 山东景飞科技有限公司 | Medium-flow environment atmospheric particulate sampling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115112787A (en) * | 2022-05-31 | 2022-09-27 | 永春县产品质量检验所(福建省香产品质量检验中心、国家燃香类产品质量监督检验中心(福建)) | Polycyclic aromatic hydrocarbon detection method |
| CN115112787B (en) * | 2022-05-31 | 2024-01-12 | 永春县产品质量检验所(福建省香产品质量检验中心、国家燃香类产品质量监督检验中心(福建)) | Detection method of polycyclic aromatic hydrocarbon |
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