CN104101205A - Micro-filtration method for treating PM2.5 (Particulate Matter 2.5) micro-dust of cupola furnace - Google Patents
Micro-filtration method for treating PM2.5 (Particulate Matter 2.5) micro-dust of cupola furnace Download PDFInfo
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- CN104101205A CN104101205A CN201310143971.7A CN201310143971A CN104101205A CN 104101205 A CN104101205 A CN 104101205A CN 201310143971 A CN201310143971 A CN 201310143971A CN 104101205 A CN104101205 A CN 104101205A
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Abstract
The invention discloses a micro-filtration method for treating PM2.5 (Particulate Matter 2.5) micro-dust of a cupola furnace. The method is characterized in that high-temperature dusty flue gas is exhausted from the cupola furnace and enters a turbulent flow type water cooler, so that large-particle dust carried in the flue gas is settled, the flue gas temperature is reduced to 210 DEG C, the fluctuation amplitude of the flue gas temperature can be greatly reduced, and the peak value of the flue gas temperature is decreased; the flue gas enters a multi-tube water cooler, and the multi-tube water cooler exchanges heat, so that the flue gas temperature is reduced to 100 DEG C, and the allowed working temperature of a plastic sintering plate dust collector is met; the cooled flue gas enters the plastic sintering plate dust collector, the dust concentration is 2mg/Nm<3> after dust collection, and the flue gas is pressed into a gas exhaust cylinder through a main fan and is exhausted into the atmosphere. A micro-pore plastic sintering plate filter core molded by sintering carbon and polyvinyl chloride is arranged in the plastic sintering plate dust collector. According to the method, fine dust is collected by using the plastic sintering plate dust collector, the dust collection efficiency is high, the low-concentration emission is guaranteed, and a device is low in operating resistance, low in investment cost, low in maintenance cost and small in occupied space.
Description
Affiliated technical field
The present invention relates to a kind of micro-filtration filter method of administering furnace cupola PM2.5 micronic dust, belong to flue gas ash removal technical field.
Background technology
Furnace cupola flue-gas temperature is very high, and the temperature that enters pipeline after trapping is generally 550 ℃ of left and right, and dust concentration reaches 25g/Nm
3, the ash that is less than 2.5 microns accounts for the more than 95% of dust total amount, and Dust Capacity is large, and sticky and thin, the method for bag-type dust after the first heat exchange cooling of common employing at present.Because dust removal installation in device adopts sack cleaner, for high dust content, dust total amount more than 95% for being less than the sticky fine dust of 2.5 microns, dust removing effects is very undesirable, the dust being retained down forms filter cake on cloth bag surface, hardened in cloth bag surface, cause and stick with paste bag, deduster running resistance is high, air-introduced machine energy consumption is large, and even deduster cannot run well; Because the pore size filter of cloth bag is more than 30 microns, the fine solid particle that is less than or equal to 2.5 microns (PM2.5) for particle diameter cannot complete filtration work, and discharge enters atmosphere, enters to human lung deposit by respiratory tract, and health is worked the mischief.
Summary of the invention
For the problems referred to above, the invention provides a kind of micro-filtration filter method of administering furnace cupola PM2.5 micronic dust, the fine solid particle good dedusting effect, the concentration of emission that by the method, for particle diameter, are less than or equal to 2.5 microns (PM2.5) are low, running resistance is low, can reduce the exhaust temperature of flue gas, the environment protecting having reached, and do not affect the stable and continuous of furnace cupola production, can also obtain good dust removing effects, the dust concentration 2mg/Nm of discharge
3.
The technical solution adopted in the present invention is as follows:
A kind of micro-filtration filter method of administering furnace cupola PM2.5 micronic dust, it is characterized in that: furnace cupola high-temperature dust-containing flue gas of the present invention is by discharging in stove, flue gas enters disturbed flow type water cooler, make the big dust particle sedimentation of carrying in flue gas, flue-gas temperature drops to 210 ℃, flue-gas temperature fluctuating range can greatly be reduced, also reduced the peak value of flue-gas temperature simultaneously, enter again multiple-pipe water cooler, after multiple-pipe water cooler heat exchange, make flue-gas temperature drop to 100 ℃, meet the permission operating temperature of sinter-plate precipitator, flue gas through cooling enters sinter-plate precipitator, dust concentration 2mg/Nm after dedusting
3, by main air blower, be pressed into aiutage and enter atmosphere.
It is further characterized in that: the microporous plastic sinter plates filter core that is provided with carbon and polyvinyl chloride sinter molding in described sinter-plate precipitator.
The invention has the beneficial effects as follows: because the fluctuation of furnace cupola flue-gas temperature is violent, flue-gas temperature peak value is high, when flue gas is after two-stage water-cooling device cooling of the present invention is processed, flue-gas temperature fluctuating range can greatly reduce, also reduce the peak value of flue-gas temperature simultaneously, guaranteed that flue-gas temperature is down to 100 ℃, met the permission operating temperature of sinter-plate precipitator, lower the temperature not only reliable and stable, and both economical.Sinter-plate precipitator is collected fine solid particle, because sintered plate filter core has the pore size filter of 0.03～0.3 micron, the fine solid particle efficiency of dust collection that is less than or equal to 2.5 microns (PM2.5) for particle diameter is 99.99%, for 0.1 micron of above dust, efficiency of dust collection is 99%, guarantee low concentration discharge, device running resistance is low, reduced system operation energy consumption, system main air blower total head is low, power of motor reduces, equipment investment expense is low, maintenance cost is low, plant area is economized, concentration of emission is low, can guarantee to discharge dust concentration 2mg/Nm
3.
Compared with prior art, tool of the present invention has the following advantages:
1, the first order adopts disturbed flow type water cooler, has both played the effect of precipitation coarse granule, plays again the one-level cooling effect of flue gas, and the flue-gas temperature of discharge is at 210 ℃; The second level adopts the cooling of multitube water cooler, guarantee that flue-gas temperature is down to 100 ℃, meet the permission operating temperature of sinter-plate precipitator, adopt the cooling of two-stage water-cooling device, heat exchange effect is better than air-cooled, and power consumption is lower than air-cooled, and cooling water can recycle, lower the temperature not only reliable and stable, and both economical;
2, dedusting precision is high: sintered plate filter core has the pore size filter of 0.03～0.3 micron, is less than or equal to the fine solid particle of 2.5 microns (PM2.5) for particle diameter, and efficiency of dust collection is 99.99%, and for 0.1 micron of above dust, efficiency of dust collection is 99%;
3, sinter-plate precipitator filter area is large: the wave-shape design of sintered plate filtering surface, and the filter area in same volume is 3～6 times of filter bag;
4, self-cleaning ability is strong: the structure of rigidity, and purge gas is more directly acted on the powder that is attached to filtering surface, do not cushion, ash-removal effect is thorough;
5, hydrophobic, oleophobic: sintered plate matrix is formed by carbon and sintering polytetrafluoroethylene, PTFE coating deeply also forms with it ultrafine micropore resistance to bond structure to sintered plate matrix hole, has hydrophobic oleophobic performance;
6, acidproof, alkaline-resisting ability is strong: special resin material, can stand the long term high temperature corrosion of strong acid, highly basic;
7, the service life of overlength: higher intensity and toughness, can stand the repeated stock of the gases at high pressure of several thousand times every day, its anti-wear performance is the more than 4 times of iron and steel, then has superpower acid and alkali-resistance ability and perfect self-cleaning effect, and can be reached more than 10 years the service life of sintered plate;
8, constant pressure, resistance is stable: uniform micron order aperture, make dust can only be attached to filter course surface, thereby it is completely unimpeded that filter course inner passage almost still keeps, simultaneously, during blowback, filter cake is removed thoroughly, and then when long-term operation, showing as filter pressure constant, running resistance is stable;
9, convenient maintenance and replacement is quick.
Accompanying drawing explanation
Fig. 1 realizes process chart of the present invention.
In figure: 1. furnace cupola, 2. disturbed flow type water cooler, 3. multiple-pipe water cooler, 4. sinter-plate precipitator, 5. main air blower, 6. aiutage.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1: the present invention is a kind of, and to administer the micro-filtration filter method step of furnace cupola PM2.5 micronic dust as follows:
15t/h furnace cupola 1 flue gas flow 8 * 10
4nm
3/ h, 550 ℃ of temperature, dust content 25g/Nm
3by discharging in stove, high-temperature flue gas enters disturbed flow type water cooler 2, makes the big dust particle sedimentation of carrying in flue gas, and flue-gas temperature drops to 210 ℃, flue-gas temperature fluctuating range can greatly be reduced, also reduced the peak value of flue-gas temperature, then entered multiple-pipe water cooler 3, simultaneously after multiple-pipe water cooler 3 heat exchange, make flue-gas temperature drop to 100 ℃, meet the permission operating temperature of sinter-plate precipitator 4, the flue gas through lowering the temperature enters sinter-plate precipitator 4, dust concentration 2mg/Nm after dedusting
3, by main air blower 5, be pressed into aiutage 6 and enter atmosphere.In described sinter-plate precipitator 4, be provided with the microporous plastic sinter plates filter core of carbon and polyvinyl chloride sinter molding.
Maximum feature of the present invention is to adopt sinter-plate precipitator to collect fine solid particle, the fine solid particle efficiency of dust collection that is less than or equal to 2.5 microns (PM2.5) for particle diameter is 99.99%, for 0.1 micron of above dust, efficiency of dust collection is 99%, can guarantee to discharge dust concentration 2mg/Nm
3.
The 15t/h furnace cupola dust collecting process of take is example, and the inventive method and conventional method comparison, be described as follows:
Note: work per year and calculate for 330th.
As can be seen here, the inventive method adopts sinter-plate precipitator to collect fine solid particle, because sintered plate filter core has the pore size filter of 0.03～0.3 micron, the fine solid particle efficiency of dust collection that is less than or equal to 2.5 microns (PM2.5) for particle diameter is 99.99%, for 0.1 micron of above dust, efficiency of dust collection is 99%, guarantee low concentration discharge, device running resistance is low, reduced system operation energy consumption, system main air blower total head is low, power of motor reduces, plant investment expense is low, maintenance cost is low, plant area is economized, concentration of emission is low, can guarantee to discharge dust concentration 2mg/Nm
3.
Claims (2)
1. a micro-filtration filter method of administering furnace cupola PM2.5 micronic dust, it is characterized in that: furnace cupola high-temperature dust-containing flue gas of the present invention is by discharging in stove, flue gas enters disturbed flow type water cooler, make the big dust particle sedimentation of carrying in flue gas, flue-gas temperature drops to 210 ℃, flue-gas temperature fluctuating range can greatly be reduced, also reduced the peak value of flue-gas temperature simultaneously, enter again multiple-pipe water cooler, after multiple-pipe water cooler heat exchange, make flue-gas temperature drop to 100 ℃, meet the permission operating temperature of sinter-plate precipitator, flue gas through cooling enters sinter-plate precipitator, dust concentration 2mg/Nm after dedusting
3, by main air blower, be pressed into aiutage and enter atmosphere.
2. a kind of micro-filtration filter method of administering furnace cupola PM2.5 micronic dust according to claim 1, is characterized in that: the microporous plastic sinter plates filter core that is provided with carbon and polyvinyl chloride sinter molding in described sinter-plate precipitator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310143971.7A CN104101205A (en) | 2013-04-12 | 2013-04-12 | Micro-filtration method for treating PM2.5 (Particulate Matter 2.5) micro-dust of cupola furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310143971.7A CN104101205A (en) | 2013-04-12 | 2013-04-12 | Micro-filtration method for treating PM2.5 (Particulate Matter 2.5) micro-dust of cupola furnace |
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| CN104101205A true CN104101205A (en) | 2014-10-15 |
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| CN201310143971.7A Pending CN104101205A (en) | 2013-04-12 | 2013-04-12 | Micro-filtration method for treating PM2.5 (Particulate Matter 2.5) micro-dust of cupola furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821303A (en) * | 2019-03-27 | 2019-05-31 | 上海超高环保科技股份有限公司 | High temperature resistant sintered plate dust-extraction unit and dust removal method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2846428Y (en) * | 2005-10-19 | 2006-12-13 | 中国冶金建设集团包头钢铁设计研究总院秦皇岛分部 | Blast furnace gas purifying dust remover of sintered plate |
| CN200946976Y (en) * | 2006-06-19 | 2007-09-12 | 裴柯兴 | Cupola integrated heat-exchange dust-removing device |
| CN101451079A (en) * | 2007-11-28 | 2009-06-10 | 中冶赛迪工程技术股份有限公司 | Converter gas purification and recovery process and system |
| CN102228767A (en) * | 2011-06-01 | 2011-11-02 | 沈阳远大环境工程有限公司 | Micropore filter material sintered plate for dust separator |
-
2013
- 2013-04-12 CN CN201310143971.7A patent/CN104101205A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2846428Y (en) * | 2005-10-19 | 2006-12-13 | 中国冶金建设集团包头钢铁设计研究总院秦皇岛分部 | Blast furnace gas purifying dust remover of sintered plate |
| CN200946976Y (en) * | 2006-06-19 | 2007-09-12 | 裴柯兴 | Cupola integrated heat-exchange dust-removing device |
| CN101451079A (en) * | 2007-11-28 | 2009-06-10 | 中冶赛迪工程技术股份有限公司 | Converter gas purification and recovery process and system |
| CN102228767A (en) * | 2011-06-01 | 2011-11-02 | 沈阳远大环境工程有限公司 | Micropore filter material sintered plate for dust separator |
Non-Patent Citations (1)
| Title |
|---|
| 尤丙夫等: "冲天炉高温烟尘冷却装置及余热回用技术", 《现代铸铁》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821303A (en) * | 2019-03-27 | 2019-05-31 | 上海超高环保科技股份有限公司 | High temperature resistant sintered plate dust-extraction unit and dust removal method |
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Application publication date: 20141015 |