CN101392912B - Fluidized bed incinerator method for organic waste liquid and garbage - Google Patents
Fluidized bed incinerator method for organic waste liquid and garbage Download PDFInfo
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- CN101392912B CN101392912B CN2008102256214A CN200810225621A CN101392912B CN 101392912 B CN101392912 B CN 101392912B CN 2008102256214 A CN2008102256214 A CN 2008102256214A CN 200810225621 A CN200810225621 A CN 200810225621A CN 101392912 B CN101392912 B CN 101392912B
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Abstract
The invention provides a fluidized bed burning method for organic waste liquid and garbage. The method comprises the following steps: mixing an organic waste liquid and fine coal powder to make water-coal slurry; and spraying the water-coal slurry into a fluidized bed garbage combustion furnace to support combustion.
Description
Technical field:
The invention belongs to the minimizing of industrial wastes, innoxious, resource treatment technique, relate in particular to the fluidized bed incinerating method for treatment of chemical industry organic liquid waste.
Background technology:
Along with The development in society and economy and quickening of urbanization process, industrial wastewater and sanitary sewage discharge capacity increase day by day.Wherein, the high concentrated organic waste liquid of chemical industry discharging is to the insoluble especially old problem of the pollution of water environment.These high concentrated organic waste liquids are difficult for biological degradation not only, and biological and the mankind are also had toxic actions such as carcinogenic, teratogenesis, mutagenesis, and human health has been constituted serious threat.It is reported, human cancer 80%～90% all relevant with environmental factor, in the carcinogenic chemicals of having found, 80% is organic pollution.Therefore, organic liquid waste is effectively handled had far-reaching social effect.Organic liquid waste mainly comprises three types: not halogen-containing organic liquid waste (hydrocarbon); Halogen-containing organic liquid waste (comprise and contain picture CC14, vinyl chloride, Celfume and other halogen-containing organic matters); The organic liquid waste (containing high concentration inorganic salts or organic salt) that contains high salt.
Because organic matter has good combustibility, so organic solvent, there are machine residue, waste material liquid etc. can adopt burning method to handle.Adopt burning method to handle organic liquid waste a lot of irreplaceable advantages are arranged, it not only can be decomposed into innocuous substance through high-temperature oxydation with poisonous and harmful substance, thoroughly realize the harmlessness disposing of waste liquid, also can reclaim the contained energy of waste liquid, reach the purpose of changing waste into resources.The a variety of organic liquid wastes of chemical industry discharging all can adopt incinerating method to carry out final disposal, and especially some concentration height, component complexity, pollutant are not recycled and be worth and the higher waste liquid of calorific value, can directly adopt incinerating method to handle.
Application (patent) number: 200720101558.4 (a kind of discarded organic solvent incinerators) have proposed to be provided with in the body of heater incinerator of helicla flute burner; Application (patent) number: 200610037605.3 (fluidized bed incinerator methods of high salinity industrial organic waste liquid) spray into the emulsion zone top and the dilute-phase zone bottom of incinerator body after with the atomizing of high salinity organic liquid waste respectively; Coal or other auxiliary fuel add in the stove from emulsion zone top; Application (patent) number: 200410021357.4 method of treatment plant's mud (the ciculation fluidized firing methods dispose of sewage) have proposed mud is made sludge water-coal-slurry, so in CFBB with the method for this kind sludge water-coal-slurry clean combustion; Application (patent) number: 200710026686.1 (utilizing slurries production technology to handle the method for textile printing and dyeing wastewater) have provided the method for utilizing slurries production technology to handle textile printing and dyeing wastewater, by the proportion relation mixed pulp between desulfurizing agent, dispersant, clear water, the textile printing and dyeing wastewater; Application (patent) number: 01124620.0 (treatment of papermaking black liquor of sulphite by water coal fluid process) with coal with black liquid according to weight ratio 1: 8-2: 1 scope is prepared into water-coal-slurry; Application (patent) number: 93121185.9 (industrial poison sewage or mud fluidized bed incinerating method for treatment) are mixed into the waste water coal slurry with industrial poison sewage or mud and granularity less than the ickings of 2mm, send in the material different proportion fluid bed of proportion greater than coal slurry agglomerates proportion and burn.
Summary of the invention:
The invention provides the fluidized bed incinerator method of a kind of organic liquid waste and rubbish, it comprises: organic liquid waste and fine breeze are mixed to make water-coal-slurry, then described water-coal-slurry is sprayed into fluidized bed refuse incinerator and carry out combustion-supporting.
Description of drawings:
Accompanying drawing 1 is a system flow chart of implementing the method for the invention.
The specific embodiment
The purpose of this invention is to provide a kind of reliable, pollution-free, the organic liquid waste that capacity usage ratio is high and the fluidized bed incinerator method of rubbish, utilize low cost that fluidized bed refuse incinerator realizes that organic liquid waste is handled and innoxious.Described method is applicable to multiple organic liquid waste, and preferably, described organic liquid waste is selected from papermaking wastewater or alcohol effluent.
The present invention at first according to the source of organic liquid waste, carries out pre-treatment to it.Dissimilar industrial wastes, Acidity of Aikalinity are usually different, and acid organic liquid waste sprays in the stove, can cause corrosion to body of heater; After the alkalescence organic liquid waste sprays into stove, can cause the coking and slagging of burner hearth.Therefore go into the stokehold, organic liquid waste will carry out neutralisation treatment.Organic liquid waste after treatment and granularity are mixed less than the fine breeze of 0.2mm, and make water-coal-slurry (being used for the stable of slurries as can add a spot of CMC to black liquid) after can adding minor amounts of additives according to the type of organic liquid waste.The water-coal-slurry of making sprays into fluidized bed refuse incinerator and carries out combustion-supporting.Because the calorific value of China's rubbish is generally lower, often needs to mix the burning coal when therefore adopting fluidized bed incinerator to burn away the refuse and carry out combustion-supporting.The water-coal-slurry that adopts organic liquid waste to make not only can reduce coal consumption, and can make full use of the calorific value of organic liquid waste.The discharging of bioxin and NOx and SO2 can be by the control fluid bed ignition temperature, improve the time of staying and the mode such as tail flue gas depickling of flue gas in stove and focus on.The pollutant emission of rubbish and the pollutant emission of organic liquid waste are focused on, greatly reduce the processing cost of organic liquid waste, thereby realized the minimizing of organic liquid waste, innoxious, recycling.Adopt this kind combustion system, made full use of industrial organic waste water on the one hand, reduced the sewage disposal expense of enterprise, help improving environment simultaneously; For waste incineration power plant, reduced operating cost; For coal water mixture plant, can reduce the consumption of water resource, save the slurrying cost.It is a kind of processing scheme of achieving many things at one stroke.
Concrete flow process comprises:
According to the type of organic liquid waste, at first reduce the quantity of solid suspension in the organic liquid waste, organic liquid waste is filtered, make waste water viscosity＜40mPas, suspension viscosity＜40 orders, thus avoid in the organic liquid waste solid suspension too much, cause obstruction and wearing and tearing to coal-water slurry nozzle; According to the type of organic liquid waste it is carried out neutralisation treatment then.Fully mix by 1.2: 1 through organic liquid waste and fine breeze after the above-mentioned processing, and according to after the organic liquid waste type adding certain amount of stabilizer (as CMC), make the water-coal-slurry of stable performance, solids content is 63-67 weight % in the water-coal-slurry, be preferably 65 weight %, liquid content is 33-37 weight %, is preferably 35 weight %.Before above-mentioned water-coal-slurry is piped to fluidized bed refuse incinerator, it sprayed into nozzle in bed in the stove rubbish is carried out combustion-supportingly, the ratio that sprays into is the 20-40% of Coal-fired capacity, decides on the calorific value of stove internal combustion situation and rubbish.The lime-ash that incinerator produces is transported after cooling, discharges after the flue gas process depickling dust removal process of generation.At present comparatively common depickling dedusting method carries out depickling for adopting semidry method, and is aided with active carbon and adsorbs, and removes heavy metal in the flue gas Ji bioxin; After after the sack cleaner dedusting, flue gas discharges.The flying dust that sack cleaner is collected carries out landfill disposal as danger wastes after solidifying.
Embodiment
With the papermaking wastewater is example, and papermaking wastewater is at first filtered, and makes waste water viscosity＜40mPa s, suspension viscosity＜40 orders, and carry out neutralisation treatment.Fully mix by 1.2: 1 through organic liquid waste and fine breeze after the above-mentioned processing, the CMC that adds 1% weight is used for the stable of slurries, and solids content is about 65% weight ratio in the water-coal-slurry after making.Before above-mentioned water-coal-slurry is piped to fluidized bed refuse incinerator, it sprayed into nozzle in bed in the stove rubbish is carried out combustion-supportingly, the ratio that sprays into is the 20-40% of Coal-fired capacity, keeps in the stove temperature more than 750 ℃.The lime-ash that incinerator produces is transported after cooling, discharges after the flue gas process depickling dust removal process of generation.The flying dust that sack cleaner is collected carries out landfill disposal as danger wastes after solidifying.Adopting such scheme, can effectively carry out recycling treatment to papermaking wastewater on the one hand, reduced the Coal-fired capacity consumption of fluidized bed refuse incinerator in addition, is a kind of energy-conservation changing waste into resources scheme.
Claims (5)
1. the fluidized bed incinerator method of organic liquid waste and rubbish, it comprises:
Organic liquid waste and fine breeze are mixed to make water-coal-slurry, then described water-coal-slurry is sprayed into fluidized bed refuse incinerator carry out combustion-supporting,
Wherein said organic liquid waste with experience filtration treatment and neutralisation treatment earlier before fine breeze mixes, described filtration treatment makes waste liquid viscosity＜40mPas, suspension viscosity＜40 orders;
Organic liquid waste after the processing and fine breeze mixed by 1.2: 1, and the granularity of described fine breeze is less than 0.2mm; And
Described organic liquid waste with the stabilizing agent that in the gained mixture, adds 0.5-2% weight after fine breeze mixes again.
2. in accordance with the method for claim 1, wherein said organic liquid waste is selected from papermaking wastewater or alcohol effluent.
3. in accordance with the method for claim 1, to spray into the ratio of fluidized bed refuse incinerator be the 20-40% of Coal-fired capacity to wherein said water-coal-slurry.
4. in accordance with the method for claim 1, solids content is 63-67 weight % in the wherein said water-coal-slurry, and liquid content is 33-37 weight %.
5. in accordance with the method for claim 1, the lime-ash that wherein said incinerator produces is transported after cooling, discharges after the flue gas process depickling dust removal process of generation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102256214A CN101392912B (en) | 2008-10-31 | 2008-10-31 | Fluidized bed incinerator method for organic waste liquid and garbage |
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| CN2008102256214A CN101392912B (en) | 2008-10-31 | 2008-10-31 | Fluidized bed incinerator method for organic waste liquid and garbage |
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| CN101392912B true CN101392912B (en) | 2011-04-20 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880557B (en) * | 2010-06-26 | 2013-02-13 | 赵铁 | Pulping method for preparing high-concentration water coal slurry by utilizing waste alkali liquor during refining of petroleum products |
| CN103175195A (en) * | 2011-12-23 | 2013-06-26 | 青岛特利尔环保锅炉工程有限公司 | Suspension type fluidized combustion process for preparing coal water slurry from industrial sewage |
| CN103148498B (en) * | 2012-12-12 | 2016-03-09 | 青岛特利尔环保股份有限公司 | The ciculation fluidized burning process of agricultural stalk coal water-coal-slurry |
| CN103175208B (en) * | 2013-03-08 | 2015-12-30 | 浙江大学 | The polymorphic hazardous waste burn system of solid-liquid and method thereof are put in fluid bed coexistence |
| CN104073306B (en) * | 2013-03-29 | 2016-03-30 | 中国石油化工股份有限公司 | A kind of production method of coal water slurry |
| CN103776037A (en) * | 2014-02-25 | 2014-05-07 | 南京凯盛开能环保能源有限公司 | High-concentration organic waste innocent treatment system and process |
| CN111520730A (en) * | 2020-05-26 | 2020-08-11 | 西安热工研究院有限公司 | Sludge-water-coal-slurry co-combustion system for coal-fired boiler and working method thereof |
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