CN203663683U - Dynamic purification reactor for harmful gas - Google Patents
Dynamic purification reactor for harmful gas Download PDFInfo
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- CN203663683U CN203663683U CN201320727624.4U CN201320727624U CN203663683U CN 203663683 U CN203663683 U CN 203663683U CN 201320727624 U CN201320727624 U CN 201320727624U CN 203663683 U CN203663683 U CN 203663683U
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- dioxin
- saturated limewater
- impeller
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- reactor
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Abstract
The utility model discloses a dynamic purification reactor for harmful gas. A dioxin dynamical removal reactor consists of a draught fan casing, an impeller, blades and a saturated limewater nozzle, wherein the impeller is arranged in a centrifugal blower casing; the blades are uniformly arranged on the impeller; the saturated limewater nozzle is arranged in a smoke inlet of a draught fan; the saturated limewater nozzle is connected with a saturated limewater pressurized liquid storage tank, the smoke inlet of the draught fan is connected with a smoke vent of a garbage incinerator, and the smoke vent is connected with a gas-liquid separator and a calcium chloride concentrating and drying process. The device has the characteristics of simple structure, low manufacturing cost, convenience in operation and usage, high efficiency for removing the dioxin and the like. The content of the dioxin in smoke gas after purification is lower than the national emission standard, and the reactor has a better market prospect.
Description
Technical field:
The utility model relates to a kind of pernicious gas dynamic purification reactor, and particularly a kind of incinerator is removed the device of dioxin pernicious gas.
Background technology:
Dioxin (Dioxin), claim again dioxa glutinous rehmannia, 2, 3, 7, 8-tetrachloro dibenzo is to dioxin 2, 3, 7, 8-Tetrachlorodibenzo chemical formula: C12H4Cl402, it is a kind of colorless and odorless, the liposoluble substance that toxicity is serious, dioxin is actually abbreviation of dioxin (Dioxins), what it referred to is not a kind of one matter, but all very similar two large class organic compounds that comprise numerous congeners or isomers of structure and character, full name is respectively that polychlorinated dibenzo-2 is disliked English polychlorinated dibenzo-p-dioxin (being called for short PCDDs) and polychlorinated dibenzo polychlorinated dibenzofuran (being called for short PCDFs)--connect 2 phenyl ring that replaced by chlorine atom by 2 oxygen atoms, for polychlorinated dibenzo (PCDFs) connects 2 phenyl ring that replaced by chlorine atom by 1 oxygen atom.On each phenyl ring, can replace 1～4 chlorine atom, thereby form numerous isomers, wherein PCDDs has 75 kinds of isomers, and PCDFs has 135 kinds of isomers.So dioxin comprises 210 kinds of compounds, this class material is highly stable, and fusing point is higher, and the utmost point is insoluble in water, can be dissolved in majority of organic solvent, is the liposoluble substance of colorless and odorless, so be very easy to accumulation in vivo.Natural microorganism and hydrolysis are less on the molecular structure impact of dioxin, and therefore, the dioxin in environment is difficult to natural degradation and eliminates.It comprises 210 kinds of compounds.Its toxicity is very large, is 130 times of cyanide, 900 times of arsenic, has the title of " poison in century ".IARC has been classified as mankind's one-level carcinogenic substance.Environment specialist claims, " dioxin " is often present in atmosphere, soil and water with small particle, and main pollution sources are chemical industry metallurgical industry, waste incineration, papermaking and produce agrochemical industry.The poly-bag that daily life is used, the things such as PVC (polyvinyl chloride) flexible glue all contain chlorine, just can discharge dioxin while burning these article, are suspended in air.
The toxicity of dioxin because of the position of substitution of chlorine atom different variant, therefore be multiplied by equivalent toxic factor (toxic equivalency factors with their content in Environmental Health Hazard degree assessment, TEFs) obtain equivalent toxicity amount (toxic equivalent, TEQ).The strongest with the toxicity of 2,3,7,8-tetrachloro-dibenzo-p-dioxin (2,3,7,8-tetrachlorodibenzo-p-dioxin, 2,3,7,8-TCDD) in dioxin, study also maximum.
Dioxin in atmospheric environment 90% derives from city and industrial refuse and incineration.The timber of doped fuel, coal, preservative treatment and oil product, various discarded object particularly Biohazard Waste easily produce dioxin during lower than 300-400 ℃ in ignition temperature.The processes such as the production link of igelite, paper, chlorine and some agricultural chemicals, smelting iron and steel, the activation of catalyst high temperature chlorine all can discharge dioxin in environment.Dioxin is also present in some Pesticidal products as pentachlorophenol, 2,4, in 5-T etc. as impurity.In urban industry Refuse Incineration Process, the formation mechanism of dioxin is still among research.
Think at present the three kinds of approach that mainly contain: 1. in to the burning process of the plastic containing chlorines such as vinyl chloride, incineration temperature is lower than 800 ℃, and chloride rubbish imperfect combustion, very easily generates dioxin.After burning, form chlorobenzene, the latter becomes the synthetic precursor of dioxin; 2. other are chloride, carbonaceous material generates dioxin without chlorobenzene as the catalytic action of the metal ions such as process copper, cobalt such as paper, woodwork, swill.3. in manufacture, the chemical substance including agricultural chemicals, especially chlorine are chemical substance, and the process that resembles the products such as Insecticides (tech) & Herbicides (tech), timber preservative, defoliant (U.S. army is for the Vietnam War), Polychlorinated biphenyls derives from.
Mechanism of carcinogenesis
Dioxin be the assorted aromatic hydrocarbons toxic chemical of many chloro three epoxies be commonly called as that (original structure is 1,4-Dioxin), in fact comprised the most dangerous environmental contaminants of two classes in the world today---many chloros dibenzo dioxin (Poly-o-chlorinated dibenzodioxin, and many chloros dibenzofurans (Poly-o-chlorinated dibenzofuran, PCDF) PCDD).Because each chlorine atom can occupy any one in eight the position of substitution in its chemical constitution, the PCDD and the PCDF that therefore contain some chlorine atom can have several isomers.PCDD amounts to theoretically can have 75 isomers, PCDF to have 135 isomers.Study verifiedly, the toxicity of this two compounds depends on replacement number and the position of substitution of chlorine atom significantly, and 2, the isomers toxicity of 3,7,8 the position of substitution is the highest; 2,3,7, the LD50 value of the cavy oral liquid of 8-T4CDF is respectively 0.6-2ug/kg and 5-10ug/kg, is the highest compound of toxicity so far, toxicity is 130 times of sodium fluoride, 900 times of arsenic, is called as " poison in poison ".The World Health Organization is classified as the toxic chemical suitable with pesticide DDT toxicity, environmental protection organization is regarded as one of environmentally hazardous formidable enemy especially, thereby caused various countries scientists' extensive concern, to its analytical method, toxicity, environmental behaviour and health effect conduct in-depth research.Animal data shows, TCDD is easily by gastrointestinal absorption, be distributed in each position in animal body, because dioxin has stronger affinity with fat, dioxin is generally accumulated after entering animal body in liver, fat, skin or muscle, or enter rich fatty livestock product, as milk and yolk.When people has eaten by the fowl of dioxin contamination poultry meat, egg, milk and manufactured goods thereof, as butter, cheese, sausage, ham etc., dioxin has also just entered human body, accumulates, and may excrete by digestive system hardly in the same fat deposit at human body or internal organs.Continuous Contact TCDD, body accumulation can reach a maintenance level.Dioxin has strong carcinogenic and teratogenesis, zoopery shows, first dioxin brings out liver and respiratory system cancer, secondly also cause disease of immune system, increase the infected chance of body, belong to the most dangerous environmental contaminants, IARC classifies dioxin as mankind's one-level carcinogenic substance.
From the burning to rubbish.Incineration temperature is lower than 800 ℃, and the chloride rubbish imperfect combustion of plastics and so on, very easily generates dioxin.Dioxin is diffused in atmosphere with smog, and what enter human body by breathing is small part, is to be more absorbed by the body by food.Take fish as example, dioxin particle is fallen rivers and lakes He Hai with rain.Eaten by the planktonic organism in water, planktonic organism is eaten up by small fish, small fish is eaten up by large fish again, slowly accumulation is concentrated in food chain whole process for dioxin, be in water more than 3000 times Deng gathering concentration in large fish body, and will have assembled more dioxin in mankind's body on food chain peak.Once fearful is to take in dioxin to be just difficult to excrete, and runs up to a certain degree, it just causes a series of serious diseases.
Harm
Dioxin is poisonous to human body, and the poisoning rear non-specific symptom that first occurs, as there is excitement at the positions such as eyes, nose and throat, dizziness, sense of discomfort and vomiting.Then on exposed skin, as face, neck occurs red and swollen, occurs skin damage symptoms such as " chloracnes " having the tumour of 1 millimeter to 1 centimetre after several weeks, and there are dark acne centre, and periphery skin has pigmentation, sometimes with hair hyperplasia.Sustainable several months of chloracne and even several years.
In addition, dioxin acute poisoning symptom also has liver swollen, and hepatic tissue is impaired, and liver function changes, and blood fat and cholesterol increase, indigestion, diarrhoea, vomiting etc.Spirit-neurological symptom is mainly insomnia, and headache is had the fidgets, emotional, eyesight and dysacousis and weakness of limbs, and sensory deprivation, domestic animal lattice change, demoralized etc.The most impressively the carcinogenicity of dioxin and teratogenesis.Zoopery has confirmed the carcinogenicity of dioxin.Observation shows, the workman of Long Term Contact dioxin and Vietnam veteran (having contacted the defoliant that contains dioxin), and its cancer morbidity obviously improves.International organization is reclassified as mankind's one-level carcinogenic substance dioxin from suspect carcinogen.
Summary of the invention:
The purpose of this utility model is in view of the foregoing defects the prior art has, and harmful gas-dynamic purification reactor is provided.
The purpose of this utility model mode of clicking realizes: its structure is made up of the dynamic purge reactor of dioxin and saturated limewater preparation facilities, wherein:
The dynamic purge reactor of dioxin is made up of electric fan shell, impeller, blade and saturated limewater nozzle, wherein: impeller is arranged among centrifuge crust of weathering body, blade is evenly arranged on impeller, saturated limewater nozzle is arranged on entering in mouth of air-introduced machine, saturated limewater nozzle is connected with saturated limewater pressurization fluid reservoir, the mouth that enters of air-introduced machine connects incinerator exhaust opening, and exhaust opening connects gas-liquid separator and calcium chloride concentrate drying operation.
Saturated limewater preparation facilities is made up of limewash agitator tank and saturated limewater pressurization fluid reservoir, the crown center of limewash agitator tank is provided with mixer, side is provided with delivery pump, charging aperture and water inlet pipe, bottom is provided with residual cake valve, the inlet of delivery pump gos deep into the bottom of agitator tank, the liquid outlet of delivery pump connects the top of saturated limewater pressurization fluid reservoir by pipeline, the bottom of saturated limewater pressurization fluid reservoir connects the dynamic purge reactor of dioxin, and side is provided with liquid level gauge;
The beneficial effects of the utility model are: this device has simple in structure, low cost of manufacture, easy for operation, dioxin clearance rate high, after purifying, the dioxins concentration of flue gas is lower than discharging standards, " the consumer waste incineration pollution control criterion " of country be middle regulation (GB18458-2001), and the concentration of emission of dioxin is 1ngTEQ/Nm3.External garbage incinerating system dioxin limit value is 0.1 nanogram.
Accompanying drawing explanation:
The structural representation of the pernicious gas dynamic purification reactor that Fig. 1 is;
The structural representation of the impeller blade that Fig. 2 is.
Description of reference numerals: residual cake valves 1, agitator tank 2, water inlet pipe 3, hydrated lime in powder charge door 4, agitator 5, infusion pump 6, woven hose 7, limewash pressurization fluid reservoir 8, liquid level gauge 9, electric fan shell 10, impeller 11, blade 12, enter mouth 13, limewash nozzle 14, exhaust opening 15.
The specific embodiment:
By reference to the accompanying drawings pernicious gas dynamic purification reactor of the present utility model is described in further detail:
The purpose of this utility model mode of clicking realizes: its structure is made up of saturated limewater preparation facilities and the dynamic purge reactor of dioxin, wherein:
The dynamic purge reactor of dioxin is made up of electric fan shell 10, impeller 11, blade 12 and saturated limewater nozzle 14, wherein: impeller 11 is arranged among centrifuge crust of weathering body 10, blade 12 is evenly arranged on impeller 11, saturated limewater nozzle 14 is arranged on entering in mouth 13 of air-introduced machine, saturated limewater nozzle 14 is connected with saturated limewater pressurization fluid reservoir 8 bottoms, the mouth 13 that enters of air-introduced machine connects incinerator exhaust opening, and the exhaust opening 15 of air-introduced machine connects gas-liquid separator and calcium chloride concentrate drying operation.
Saturated limewater preparation facilities is made up of limewash agitator tank 2 and saturated limewater pressurization fluid reservoir 8, the crown center of limewash agitator tank 2 is provided with mixer 5, side is provided with delivery pump 6, charging aperture 4 and water inlet pipe 3, bottom is provided with residual cake valve 1, the inlet of delivery pump 6 gos deep into the bottom of agitator tank 2, the liquid outlet of delivery pump 6 connects the top of saturated limewater pressurization fluid reservoir 8 by pipeline 7, the bottom of saturated limewater pressurization fluid reservoir 8 connects the dynamic purge reactor of dioxin, and side is provided with liquid level gauge 9.
Embodiment
The operation principle of pernicious gas dynamic purification reactor of the present utility model is as follows: in background technology, introduced, the main source of dioxin is due to plastic containing chlorine rubbish burns under cold and oxygen deficient state, plastic containing chlorine rubbish under cold and oxygen deficient state lower than 800 ℃ of whens burning, first, chlorine element is broken down into gaseous chlorine ion, carbon and hydrogen generate carbon dioxide, the compound of water or little molecular weight, because chlorine element is the most active element, after decomposition, can at 400-800 ℃ of temperature, synthesize into dioxin with other small molecular weight organic compounds immediately, even if prove by experiment plastic containing chlorine combustion decomposition at 1000 ℃, but be naturally cooled to 400-800 ℃ in flue time, can synthesize equally dioxin, no matter how high temperature have in waste incineration that Here it is, always cannot thoroughly remove the basic reason of dioxin.According to the incinerator service condition of prior art, the incineration temperature of rubbish in burner hearth is at 1000-1200 ℃, flue gas is up carries out preheating or destructive distillation to the rubbish on burning zone top, flue-gas temperature can be reduced to below 1000 ℃, discharge fume by air-introduced machine, the flue-gas temperature that enters air-introduced machine is down to below 800 ℃, but just in time a large amount of generation dioxin in being uniformly mixed of air-introduced machine of the small molecular weight organic compounds gas that the chlorine element that decomposes by burning zone and garbage pre-heating low temperature distillation are decomposed.
According to principles of chemical kinetics, want to allow chemical reaction carry out to the right, must guarantee has stable compound to generate in reaction product, and the compound of generation is more stable, and it is more thorough that chemical reaction carries out.The burning of plastic containing chlorine rubbish, must generate dioxin, and the basic reason that generates dioxin is the existence of chlorine element, how at plastic containing chlorine rubbish in decomposition temperature interval, allow the stable compound of chlorine Element generation reduce the chlorine concentration of element of synthetic dioxin, to solve the key that pernicious gas dioxin produces, the utility model utilizes this dioxin of air-introduced machine synthetic temperature range and environment just, allow the stable compound of chlorine Element generation, reduce the concentration of chlorine element in flue gas, stop the synthetic of dioxin, method is in mouth, to spray into saturated limewater to entering of air-introduced machine, chlorine element is under the high speed of On Draw Fan Blades is fully stirred, first generate hydrogen chloride with water, hydrogen chloride carries out acid-base neutralization with calcium hydroxide again and reacts calcium chloride and the water that generation chemical bond is stronger, because reaction is exothermic reaction, water and limewash are together entered smokejack by high-temperature flue gas heating vaporization with flue gas, in smokejack, continue to react with residual chlorine elemental gas incessantly, chlorine element is thoroughly removed clean the most at last, reacted product is calcium chloride, enter concentrate drying operation and obtain calcium chloride drier byproduct.
Claims (2)
1. a pernicious gas dynamic purification reactor, it is characterized in that comprising the dynamic purge reactor of dioxin and saturated limewater preparation facilities, wherein: the dynamic purge reactor of dioxin is by electric fan shell, impeller, blade and saturated limewater nozzle composition, wherein: impeller is arranged among centrifuge crust of weathering body, blade is evenly arranged on impeller, saturated limewater nozzle is arranged on entering in mouth of air-introduced machine, saturated limewater nozzle is connected with saturated limewater pressurization fluid reservoir, the mouth that enters of air-introduced machine connects incinerator exhaust opening, exhaust opening connects gas-liquid separator and calcium chloride concentrate drying operation.
2. pernicious gas dynamic purification reactor according to claim 1, it is characterized in that saturated limewater preparation facilities is made up of limewash agitator tank and saturated limewater pressurization fluid reservoir, the crown center of limewash agitator tank is provided with mixer, side is provided with delivery pump, charging aperture and water inlet pipe, bottom is provided with residual cake valve, the inlet of delivery pump gos deep into the bottom of agitator tank, the liquid outlet of delivery pump connects the top of saturated limewater pressurization fluid reservoir by pipeline, the bottom of saturated limewater pressurization fluid reservoir connects the dynamic purge reactor of dioxin, side is provided with liquid level gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727624.4U CN203663683U (en) | 2013-11-18 | 2013-11-18 | Dynamic purification reactor for harmful gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320727624.4U CN203663683U (en) | 2013-11-18 | 2013-11-18 | Dynamic purification reactor for harmful gas |
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| CN203663683U true CN203663683U (en) | 2014-06-25 |
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| CN201320727624.4U Withdrawn - After Issue CN203663683U (en) | 2013-11-18 | 2013-11-18 | Dynamic purification reactor for harmful gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566743A (en) * | 2013-11-18 | 2014-02-12 | 山东巨亚环保设备有限公司 | Harmful gas dynamic purification reactor and purification method thereof |
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- 2013-11-18 CN CN201320727624.4U patent/CN203663683U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566743A (en) * | 2013-11-18 | 2014-02-12 | 山东巨亚环保设备有限公司 | Harmful gas dynamic purification reactor and purification method thereof |
| CN103566743B (en) * | 2013-11-18 | 2015-08-12 | 山东巨亚环保设备有限公司 | A kind of pernicious gas dynamic purification reactor and purification method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: LINYI YANGGUANG BOILER CO., LTD. Effective date: 20150616 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150616 Address after: 276034 Hangzhou road Shandong city Linyi Province Economic and Technological Development Zone and Huaxia Road intersection 200 meters north Patentee after: SHANDONG JUYA ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. Address before: 276034 Hangzhou road Shandong city Linyi Province Economic and Technological Development Zone and Huaxia Road intersection 200 meters north Patentee before: SHANDONG JUYA ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. Patentee before: Linyi Yangguang Boiler Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140625 Effective date of abandoning: 20150812 |
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| RGAV | Abandon patent right to avoid regrant |