CN105056636A - Method for removing inhalable particles in atmosphere - Google Patents
Method for removing inhalable particles in atmosphere Download PDFInfo
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- CN105056636A CN105056636A CN201510421861.1A CN201510421861A CN105056636A CN 105056636 A CN105056636 A CN 105056636A CN 201510421861 A CN201510421861 A CN 201510421861A CN 105056636 A CN105056636 A CN 105056636A
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- dust
- desulfurization
- flue gas
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Abstract
The invention relates to a method for removing inhalable particles in the atmosphere. Waste dust is introduced into a cyclone dust collector, dust-containing gas flow enters the dust collector via a tangent inlet and rotates spirally along the outer wall from top to bottom, dust particles flow towards the outer wall under the action of the inertial centrifugal force, and dust reaching the outer wall fall into an ash hopper along the outer wall under the action of the gas flow and gravity; then flue gas subjected to particle agglomeration is fed into a pipeline to be led to a desulfurization for desulfurization and dust removal, and some flue gas with low dust concentration is desulfurized together; finally, the flue gas subjected to dust removal and desulfurization is exhausted into the atmosphere through a chimney, and finally, the degradation rate of the inhalable particles in the flue gas is higher than 93% through detection.
Description
Technical field
The present invention is specifically related to a kind of minimizing technology of pellet, is specifically related to the minimizing technology of pellet in a kind of air.
Background technology
In environmental science, particle refers in particular to and is suspended in solid particle in the middle of air or drop, is air-polluting main source.Wherein, the particle that aerodynamic diameter (hereinafter referred to as diameter) is less than or equal to 10 microns is called pellet, also claims PM10.The particle that diameter is less than or equal to 2.5 microns is called fine particle, also claims PM2.5.The particle time of staying is in an atmosphere very long, can accumulate in lung, can affect health of people.In air some particle because of particle diameter is large or color black can be finding of naked eye, such as flue dust.Some is then little of using electron microscope just to can be observed.Usually the particle of particle diameter below 10 microns is called PM10, be also called pellet or floating dust.The diameter of particle is less, and the position entering respiratory tract is darker.The particle of 10 micron diameters is deposited on the upper respiratory tract usually, the deep of the entered respiratory tract of 5 micron diameters, less than 2 microns 100% can be deep into bronchiole and alveolar, it is chronic that pellet continues in surrounding air, creates a great impression to health and atmospheric visibility.Now, much research has confirmed that particle can damage respiratory system and cardiovascular system, causes asthma, lung cancer, angiocardiopathy, inborn defect and premature death.The size of particle determines their positions finally in respiratory tract.Larger particle is often filtered by cilium and mucus, cannot by nose and throat.But, be less than particle and the pellet (PM10) of 10 microns, these barriers can be penetrated and reach bronchus and alveolar.And being less than the particle of 2.5 microns, fine particle (PM2.5), specific area is greater than PM10, more easily adsorbs virulent material.Because volume is less, PM2.5 has stronger penetration power, may arrive at bronchiole wall, and disturbs the gas exchanges in lung.Less particulate (diameter is less than or equal to 100 nanometers) can be transmitted by lung affects other organs.Weather scientist and medical expert think, the harm of the haze weather caused by fine particle to health is even larger than sandstorm.The particle that particle diameter is more than 10 microns, outside the nose that can be blocked in people; The particle of particle diameter between 2.5 microns to 10 microns, can enter the upper respiratory tract, but part excretes by sputum etc., relatively little to human health damage; And the fine particle of particle diameter below 2.5 microns, bronchus can be entered after being inhaled into human body, the gas exchanges of interference lung, cause the disease comprising the aspects such as asthma, bronchitis and cardiovascular disease.These particles can also enter blood by bronchus and alveolar, and pernicious gas wherein, heavy metal etc. dissolve in blood, larger to the injury of health.PM10 enters after in lung, first with pulmonary alveolar macrophage, pulmonary epithelial cells effect, stimulates the various cell factor of release, causes lung inflammation and pulmonary fibrosis [10].(2) after PM10 and cytosis, release active oxygen (ROS) and free radical, oxidative damage histocyte and inhereditary material and cause hyperplasia and division disorderly, finally may cause cancerating.In a word, PM10 can cause the damage of body each several part by multiple mechanism such as oxidation stimulation, inflammatory reaction and inhereditary material changes.And these damages are relevant.If PM10 is owing to compromising immune system, more easily cause the infringement of other system.
Summary of the invention
The invention provides the minimizing technology of pellet in the air that a kind of equipment is simple, processing ease, investment operating cost are lower.
In order to reach above-mentioned purpose, the concrete technical scheme of employing is:
(1) exhaust gas and dust of discharging in factory is incorporated in cyclone dust collectors, dust-contained airflow enters into deduster by tangential inlet, move as spiral rotating from top to bottom along outer wall, grit is under the effect of centrifugal inertial force, flow to outer wall, arrive the grit of outer wall, under the effect of air-flow and gravity, fall into ash bucket along outer wall;
(2) then the flue gas completing particle agglomeration is passed into pipeline to cause in desulfurizing tower and carry out desulfurization and dedusting, the flue gas low for some dust contents desulfurization together;
(3) flue gas the most at last after dedusting and desulfurization is in the middle of smoke stack emission to air.
Described sweetening process is that flue gas is with alkaline desulfurizing agent as NaOH and calcium oxide slurries mix in desulfurizer, and sulfur dioxide is met water and become acid, generates the desulfurization products such as calcium sulfate namely complete with alkaline reactive desulfurizing agent.
Described in desulfurization and dedusting process, particle is maintained for those, may be all captured after by one baffle, and there is certain grit to overflow, after multilayer baffle plate, fine grit cohesion, quality constantly increases and is captured, is separated, thus reaches best dust removing effects.
Application principle of the present invention is: be incorporated in cyclone dust collectors by discarded dust, dust-contained airflow enters into deduster by tangential inlet, move as spiral rotating from top to bottom along outer wall, grit is under the effect of centrifugal inertial force, flow to outer wall, arrive the grit of outer wall, under the effect of air-flow and gravity, fall into ash bucket along outer wall; Then the flue gas completing particle agglomeration is passed into pipeline to cause in desulfurizing tower and carry out desulfurization and dedusting, the flue gas low for some dust contents desulfurization together; Flue gas the most at last after dedusting and desulfurization is in the middle of smoke stack emission to air.
The advantage had of the present invention has:
(1) the present invention have active high, to features such as Atmosphere changes strong adaptabilities;
(2) features such as waste water, waste residue, energy consumption be low are not produced.
In a kind of air, the minimizing technology of pellet is:
(1) exhaust gas and dust of discharging in factory is incorporated in cyclone dust collectors, dust-contained airflow enters into deduster by tangential inlet, move as spiral rotating from top to bottom along outer wall, grit is under the effect of centrifugal inertial force, flow to outer wall, arrive the grit of outer wall, under the effect of air-flow and gravity, fall into ash bucket along outer wall;
(2) then the flue gas completing particle agglomeration is passed into pipeline to cause in desulfurizing tower and carry out desulfurization and dedusting, the flue gas low for some dust contents desulfurization together;
(3) flue gas the most at last after dedusting and desulfurization is in the middle of smoke stack emission to air.
Described sweetening process is that flue gas is with alkaline desulfurizing agent as NaOH and calcium oxide slurries mix in desulfurizer, and sulfur dioxide is met water and become acid, generates the desulfurization products such as calcium sulfate namely complete with alkaline reactive desulfurizing agent.
Described in desulfurization and dedusting process, particle is maintained for those, may be all captured after by one baffle, and there is certain grit to overflow, after multilayer baffle plate, fine grit cohesion, quality constantly increases and is captured, is separated, thus reaches best dust removing effects.
Claims (3)
1. the minimizing technology of pellet in air, is characterized in that;
The exhaust gas and dust of discharging in factory is incorporated in cyclone dust collectors, dust-contained airflow enters into deduster by tangential inlet, move as spiral rotating from top to bottom along outer wall, grit is under the effect of centrifugal inertial force, flow to outer wall, arrive the grit of outer wall, under the effect of air-flow and gravity, fall into ash bucket along outer wall;
Then the flue gas completing particle agglomeration is passed into pipeline to cause in desulfurizing tower and carry out desulfurization and dedusting, the flue gas low for some dust contents desulfurization together;
Flue gas the most at last after dedusting and desulfurization is in the middle of smoke stack emission to air.
2. the minimizing technology of pellet in a kind of air according to claim 1, it is characterized in that: described sweetening process be in desulfurizer flue gas with alkaline desulfurizing agent as NaOH and calcium oxide slurries mix, sulfur dioxide is met water and is become acid, generates the desulfurization products such as calcium sulfate namely complete with alkaline reactive desulfurizing agent.
3. the minimizing technology of pellet in a kind of air according to claim 1, it is characterized in that: described in desulfurization and dedusting process, particle is maintained for those, may be all captured after by one baffle, and there is certain grit to overflow, after multilayer baffle plate, fine grit cohesion, quality constantly increases and is captured, is separated, thus reaches best dust removing effects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421861.1A CN105056636A (en) | 2015-07-18 | 2015-07-18 | Method for removing inhalable particles in atmosphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421861.1A CN105056636A (en) | 2015-07-18 | 2015-07-18 | Method for removing inhalable particles in atmosphere |
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| CN105056636A true CN105056636A (en) | 2015-11-18 |
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| CN201510421861.1A Pending CN105056636A (en) | 2015-07-18 | 2015-07-18 | Method for removing inhalable particles in atmosphere |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031130A (en) * | 1988-01-19 | 1989-02-15 | 北京橡胶六厂 | The method of coal-burning boiler dust-removal and desulfurizing and device |
| CN2675236Y (en) * | 2004-02-26 | 2005-02-02 | 王宏军 | Eddy flow wet type desulfurizing dust collector |
| CN102151478A (en) * | 2011-04-20 | 2011-08-17 | 茂名市银华高岭土实业有限公司 | Smoke cyclone water mist dedusting and desulphurizing device |
| CN103084057A (en) * | 2013-01-25 | 2013-05-08 | 福建永恒能源管理有限公司 | Process for extracting coal ash to produce desulfurizer in pulverized coal combustion |
| CN103599691A (en) * | 2013-11-22 | 2014-02-26 | 赵长兴 | Technology and system for removing dust and sulfur by using coal ash |
| CN103877843A (en) * | 2014-03-31 | 2014-06-25 | 邹炎 | Broad spectrum smoke purifying device and process |
| KR101426333B1 (en) * | 2013-12-03 | 2014-08-05 | 한국에너지기술연구원 | Spouted bed type reactor for dry flue gas desulfurization and multi- stage desulfurization method using thereof |
| CN104028089A (en) * | 2014-05-26 | 2014-09-10 | 谷屿 | New smoke desulfurization and dust removal process |
| CN104315528A (en) * | 2014-11-04 | 2015-01-28 | 连云港艾可新型建材有限公司 | Desulfurizer body device for boiler dedusting |
-
2015
- 2015-07-18 CN CN201510421861.1A patent/CN105056636A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031130A (en) * | 1988-01-19 | 1989-02-15 | 北京橡胶六厂 | The method of coal-burning boiler dust-removal and desulfurizing and device |
| CN2675236Y (en) * | 2004-02-26 | 2005-02-02 | 王宏军 | Eddy flow wet type desulfurizing dust collector |
| CN102151478A (en) * | 2011-04-20 | 2011-08-17 | 茂名市银华高岭土实业有限公司 | Smoke cyclone water mist dedusting and desulphurizing device |
| CN103084057A (en) * | 2013-01-25 | 2013-05-08 | 福建永恒能源管理有限公司 | Process for extracting coal ash to produce desulfurizer in pulverized coal combustion |
| CN103599691A (en) * | 2013-11-22 | 2014-02-26 | 赵长兴 | Technology and system for removing dust and sulfur by using coal ash |
| KR101426333B1 (en) * | 2013-12-03 | 2014-08-05 | 한국에너지기술연구원 | Spouted bed type reactor for dry flue gas desulfurization and multi- stage desulfurization method using thereof |
| CN103877843A (en) * | 2014-03-31 | 2014-06-25 | 邹炎 | Broad spectrum smoke purifying device and process |
| CN104028089A (en) * | 2014-05-26 | 2014-09-10 | 谷屿 | New smoke desulfurization and dust removal process |
| CN104315528A (en) * | 2014-11-04 | 2015-01-28 | 连云港艾可新型建材有限公司 | Desulfurizer body device for boiler dedusting |
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Application publication date: 20151118 |