CN105396408A - PM2.5 (fine particulate matter) removal system for thermal power plant - Google Patents
PM2.5 (fine particulate matter) removal system for thermal power plant Download PDFInfo
- Publication number
- CN105396408A CN105396408A CN201510839241.XA CN201510839241A CN105396408A CN 105396408 A CN105396408 A CN 105396408A CN 201510839241 A CN201510839241 A CN 201510839241A CN 105396408 A CN105396408 A CN 105396408A
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- China
- Prior art keywords
- type deduster
- magnetic
- air outlet
- general
- power plant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
A PM2.5 (fine particulate matter) removal system for a thermal power plant is characterized by comprising a general dust collector and a high-gradient magnetic dust collector, wherein the general dust collector is provided with an air inlet and an air outlet, the air outlet of the general dust collector is connected with the high-gradient magnetic dust collector through a connecting pipe, and an air outlet of the high-gradient magnetic dust collector is connected with a smoke exhaust pipe. The PM2.5 removal system can effectively remove all particulate matters, especially PM2.5, reduce environmental pollution and solve the problem of insufficient PM2.5 removal capacity of the conventional dust removal device.
Description
Technical field
The present invention relates to the filtering appts that thermal power plant can enter lung superfine particulate matter, be applied to the purified treatment field of heat power plant boiler flue gas.
Background technology
Increasingly serious in recent years along with environmental problem, country more and more payes attention to the improvement of PM2.5.PM2.5 refers to that diameter is less than or equal to the particle of 2.5 μm, also referred to as entering lung particle.The specific area of PM2.5 is comparatively large, each Heavy Metallic Elements of usual enrichment, as As, Se, Pb, Cr etc., and the organic pollution such as PAHs, PCDD/Fs, VOCs, these mostly are carcinogen and genotoxicity mutagen matter, very harmful.The display of large quantity research, in the particle affecting atmospheric visibility, PM2.5 occupies extremely important leading position, and the photoextinction of Brownish haze phenomenon mainly PM2.5 causes, and therefore, the impact of PM2.5 on health and atmosphere quality is very serious.
In order to tackle the environmental problem that high pollution brings, although country proposes more and more stricter requirement to Pollutant emission concentration, institute's problems faced is still severe.Coal fired power generation is the major way of China, and the dusty gas discharge capacity produced in its production process is large, complicated component, is one of main source of industrial PM2.5 discharge.At present, different for the dust granules in flue gas, cleaner has a variety of, comprises mechanical dust collector, electric cleaner, wet scrubber and filtration dust catcher etc.The efficiency of dust collection of these dust arresters generally can up to more than 99%; for preserve the ecological environment and resource recycling made major contribution; but existing apparatus is very low to the capture rate of ultra-fine flying dust, these flying dusts are based on PM2.5, and its quantity can reach more than 90% of flying dust sum.Therefore, in order to realize the discharge of lower concentration, the filtering method of Studies of The Superfine particle is needed.
Summary of the invention
Goal of the invention: the invention provides the filtering appts that a kind of thermal power plant can enter lung superfine particulate matter, object is to solve existing cleaner for finely ground particles (particle size diameter 2.5 μm and the following) problem that filtration result is low,
Technical scheme: a kind of thermal power plant can enter the filtering appts of lung superfine particulate matter, it is characterized in that: this device comprises general-purpose type deduster and high gradient magnetic-type deduster, general-purpose type deduster has air intake vent and air outlet, the air outlet of general-purpose type deduster is connected with high gradient magnetic-type deduster by tube connector, and the air outlet of high gradient magnetic-type deduster is connected with smoke exhaust pipe.
High gradient magnetic-type deduster comprises magnetic matrix purifying treating unit and ash bucket, and magnetic matrix purifying treating unit captures the particle in general-purpose type deduster Exhaust Gas by electromagnetism magnetizing force.
Magnetic matrix purifying treating unit includes electromagnet, magnetic matrix, rapping apparatus, and electromagnet connects magnetic matrix, and magnetic matrix connects rapping apparatus.
High gradient magnetic-type deduster degree of including a magnetic matrix purifying treating unit, this multiple processing unit is connected in parallel, air inlet is connected with the air outlet of general-purpose type deduster, air outlet is connected with smoke discharging pipe, rapping apparatus is corresponding with dust removal port, dust removal port to ash bucket, passage is equipped with vavuum pump through deashing expanding channels.
Advantageous effect:
The object of this invention is to provide a kind of dust arrester for the effective filtering pellet in thermal power plant, can realize all particulates, particularly can enter effective filtering of the particle of lung, reduce environmental pollution, solve the problem of existing dust arrester to superfine particulate matter filtering scarce capacity.
accompanying drawing illustrates:
Fig. 1 is dust arrester schematic diagram of the present invention.
In figure:
1-general-purpose type deduster, 2-high gradient magnetic-type deduster.
Fig. 2 is the inner connection diagram of high gradient magnetic-type deduster of the present invention.
In figure:
3-magnetic matrix purifying treating unit, 4-magnetic matrix purifying treating unit inlet channel magnetic valve, 5-magnetic matrix purifying treating unit outlet passageway magnetic valve, 6-magnetic matrix purifying treating unit deashing passage magnetic valve, 7-vavuum pump.
Numbering
,
......
for magnetic matrix purifying treating unit arranged side by side, the version of each unit is identical.
detailed description of the invention:below in conjunction with accompanying drawing, the present invention is described further:
As shown in Figure 1, the invention provides the filtering appts that a kind of thermal power plant can enter lung superfine particulate matter, this device comprises general-purpose type deduster 1 and high gradient magnetic-type deduster 2, general-purpose type deduster has air intake vent and air outlet, the air outlet of general-purpose type deduster is connected with high gradient magnetic-type deduster by tube connector, and the air outlet of high gradient magnetic-type deduster is connected with smoke exhaust pipe.
High gradient magnetic-type deduster comprises magnetic matrix purifying treating unit 3 and ash bucket, and magnetic matrix purifying treating unit captures the particle in general-purpose type deduster Exhaust Gas by electromagnetism magnetizing force.
Magnetic matrix purifying treating unit includes electromagnet, magnetic matrix, rapping apparatus, and electromagnet connects magnetic matrix, and magnetic matrix connects rapping apparatus.
High gradient magnetic-type deduster degree of including a magnetic matrix purifying treating unit, this multiple processing unit is connected in parallel, air inlet is connected with the air outlet of general-purpose type deduster, air outlet is connected with smoke discharging pipe, rapping apparatus is corresponding with dust removal port, dust removal port to ash bucket, passage is equipped with vavuum pump through deashing expanding channels.
Magnetic matrix purifying treating unit captures the particle in general-purpose type deduster Exhaust Gas by electromagnetism magnetizing force.
With magnetic matrix purifying treating unit for least unit, flexible assembling can be carried out according to actual conditions.Each purifying treating unit comprises the housing with air inlet and air outlet, in enclosure interior, magnetic matrix is housed, in the gas passage both sides of enclosure interior, electromagnet is installed, magnetic matrix and magnetic direction and airflow direction perpendicular, be provided with magnetic valve at inlet channel, outlet passageway and deashing passage, air inlet and gas outlet are equipped with air inlet pressure sensor and outlet pressure sensor respectively.
The flue gas that coal-fired boiler in thermal power plant produces is through general-purpose type deduster, remove most particle, flue gas containing superfine particulate matter flows in high gradient magnetic-type deduster, flue gas enters purifying treating unit respectively, particle is magnetized under the effect of high-gradient magnetic field, the particle be magnetized is continuous close to magnetic matrix under the influence of a magnetic field, is constantly condensed into the larger particle of particle diameter, and is finally caught by magnetic matrix in approach process.The flue gas be cleaned is discharged from pipeline.When the inlet outlet pressure differential of some purifying treating units invariable (or reaching rapping design load), close the magnetic valve importing and exporting passage, opposing magnetic field is passed into magnetic matrix, mechanical shaking device carries out rapping to magnetic matrix, open the magnetic valve of deashing passage simultaneously, vavuum pump unlatching work, particle sucking-off rapping come off, realizes the cleaning of accumulating particulate thing.
Dust collection method provided by the invention and device, operating efficiency is high, and structure can be various, for actual manufacture and installation provide multiple choices.
Dust collection method provided by the invention and device, effectively can solve conventional dust removal device to sucking the not good problem of superfine particulate matter filtration result, effectively can control the pollution of coal-fired boiler in power plant emission to air.
Claims (4)
1. a thermal power plant can enter the filtering appts of lung superfine particulate matter, it is characterized in that: this device comprises general-purpose type deduster (1) and high gradient magnetic-type deduster (2), general-purpose type deduster has air intake vent and air outlet, the air outlet of general-purpose type deduster is connected with high gradient magnetic-type deduster by tube connector, and the air outlet of high gradient magnetic-type deduster is connected with smoke exhaust pipe.
2. thermal power plant according to claim 1 can enter the filtering appts of lung superfine particulate matter, it is characterized in that: high gradient magnetic-type deduster comprises magnetic matrix purifying treating unit (3) and ash bucket, magnetic matrix purifying treating unit captures the particle in general-purpose type deduster Exhaust Gas by electromagnetism magnetizing force.
3. thermal power plant according to claim 2 can enter the filtering appts of lung superfine particulate matter, it is characterized in that: magnetic matrix purifying treating unit includes electromagnet, magnetic matrix, rapping apparatus, electromagnet connects magnetic matrix, and magnetic matrix connects rapping apparatus.
4. thermal power plant according to claim 2 can enter the filtering appts of lung superfine particulate matter, it is characterized in that: high gradient magnetic-type deduster degree of including a magnetic matrix purifying treating unit, this multiple processing unit is connected in parallel, air inlet is connected with the air outlet of general-purpose type deduster, air outlet is connected with smoke discharging pipe, rapping apparatus is corresponding with dust removal port, and dust removal port to ash bucket, passage is equipped with vavuum pump through deashing expanding channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839241.XA CN105396408A (en) | 2015-11-27 | 2015-11-27 | PM2.5 (fine particulate matter) removal system for thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839241.XA CN105396408A (en) | 2015-11-27 | 2015-11-27 | PM2.5 (fine particulate matter) removal system for thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105396408A true CN105396408A (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510839241.XA Pending CN105396408A (en) | 2015-11-27 | 2015-11-27 | PM2.5 (fine particulate matter) removal system for thermal power plant |
Country Status (1)
| Country | Link |
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| CN (1) | CN105396408A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1787504C (en) * | 1989-10-18 | 1993-01-15 | Кооперативный Институт Физических Проблем Технологии "Магнит" | Device for catalytic treatment or filtration of gases and liquids |
| JPH06312370A (en) * | 1993-04-27 | 1994-11-08 | Nitsuchiyuu:Kk | Dust removing device for shot blast |
| CN101376122A (en) * | 2008-10-13 | 2009-03-04 | 宁波科宁达工业有限公司 | Magnetic dust-cleaning equipment |
| CN101574605A (en) * | 2009-06-04 | 2009-11-11 | 陈维岳 | Ferromagnetic metal oxygen cutting ablation fume electromagnetic trapping system |
| CN104998510A (en) * | 2015-08-11 | 2015-10-28 | 东北大学 | Removing device and method for inhalable particles and fine particles in flue gas |
-
2015
- 2015-11-27 CN CN201510839241.XA patent/CN105396408A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1787504C (en) * | 1989-10-18 | 1993-01-15 | Кооперативный Институт Физических Проблем Технологии "Магнит" | Device for catalytic treatment or filtration of gases and liquids |
| JPH06312370A (en) * | 1993-04-27 | 1994-11-08 | Nitsuchiyuu:Kk | Dust removing device for shot blast |
| CN101376122A (en) * | 2008-10-13 | 2009-03-04 | 宁波科宁达工业有限公司 | Magnetic dust-cleaning equipment |
| CN101574605A (en) * | 2009-06-04 | 2009-11-11 | 陈维岳 | Ferromagnetic metal oxygen cutting ablation fume electromagnetic trapping system |
| CN104998510A (en) * | 2015-08-11 | 2015-10-28 | 东北大学 | Removing device and method for inhalable particles and fine particles in flue gas |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160316 |