CN204953510U - Preprocessing device of waste incineration power generation flying dust - Google Patents
Preprocessing device of waste incineration power generation flying dust Download PDFInfo
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- CN204953510U CN204953510U CN201520531393.9U CN201520531393U CN204953510U CN 204953510 U CN204953510 U CN 204953510U CN 201520531393 U CN201520531393 U CN 201520531393U CN 204953510 U CN204953510 U CN 204953510U
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Abstract
The utility model discloses a preprocessing device of waste incineration power generation flying dust, the flying dust storehouse is passed through screw conveyer and is linked to each other with pre treatment device, pre treatment device links to each other with the mixing roll, be equipped with flying dust metering device between pre treatment device and mixing roll, the cement bin links to each other with the mixing roll, and be equipped with cement metering device between cement bin and the mixing roll, the stabilizer stirred tank links to each other with former cistern of stabilizer and water source respectively, be equipped with stabilizer stoste flowmeter between stabilizer stirred tank and the former cistern of stabilizer, it joins in marriage water flow meter to be equipped with between stabilizer stirred tank and water source, the stabilizer stirred tank links to each other with the mixing roll, be equipped with the transport measuring pump between stabilizer stirred tank and the mixing roll. This preprocessing device of waste incineration power generation flying dust, simple structure, reasonable in design, the cost is low, at solidification stabilizing treatment in -process, flying dust, stabilizer, cement, water ratio volume set up the accuracy, and solidification stabilizing treatment's is effectual.
Description
Technical field
The utility model relates to field of environment protection equipment, is specially a kind of pretreatment unit of waste incineration and generating electricity flying dust.
Background technology
At the material that recuperation of heat utilizes system, flue gas purification system to collect after flying dust refers to waste incineration.The generation of flying dust with rubbish kind, burn condition, burn the type of furnace and flue gas treating process relevant, generally account for about the 3%-5% of waste incineration amount.In flying dust containing a large amount of lead, zinc, cadmium, mercury etc. heavy metal and its esters and multiple persistence organic pollutant, wherein bioxin mainly contains organic pollutants in flying dust.Dioxin be many chlorodiphenyls also-general designation to-bioxin (PCDDs) and polychlorinated dibenzo (PCDFs), the CONCENTRATION DISTRIBUTION of flying dust Zhong dioxin isomers has similar feature, and the content of high Lv Dai dioxin is apparently higher than low Lv Dai dioxin.Generally believe that waste incineration is one of main source of environment Zhong bioxin at present.Pollutant in above-mentioned flying dust, if not treated, can move after direct entered environment in the environment, not only can produce serious influence to environment, also can enter human body by food chain, threatens health.Flying ash is clearly classified as a class hazardous waste by " the consumer waste incineration Environmental capacity standard " of China, must carry out harmless treatment disposal.The annual municipal refuse output of current China is at about 1.8 hundred million tons, about 7% is burning disposal, and the generation of flying dust is by 3%, and annual flying dust generation is about 37.8 ten thousand tons, therefore need cheapness, efficiently technology to carry out process to flying dust to dispose, reduce its environmental risk.
Solidification and stabilization is the main method processing pollutant in flying dust at present.Be after solidification and stabilization medicament is mixed with incineration of refuse flyash, utilize the reaction of solidification and stabilization medicament and metal to generate mineral or insoluble substance, thus reduce the stripping of heavy metal and organic pollution.Although flyash curing stabilization processes is the flying dust processing mode of a kind of simple possible, non-secondary pollution, but need many for pollutant type in flying dust, harm is large, complicated component, composition dynamic change feature, development of new, efficiently solidification and stabilization Processes and apparatus are the keys affecting the development of flyash curing stabilizing surface treatment at present and promote waste incineration development.
The utility model provides a kind of for the pretreated equipment of waste incineration and generating electricity flying dust, mainly in solidification and stabilization processing procedure, flying dust has complicated component and the moment is in the feature in dynamic change, cause that flyash ingredient is fixing, pollutant type is fixing, pollutant load is not fixed, the skewness etc. of pollutant, and then the addition of solidification and stabilization medicament, cement, water cannot be accurately set in processing procedure, finally affect the effect of solidification and stabilization process.
At present in solidification and stabilization processing procedure, flying dust, stabilization agent, cement, water proportioning arrange main rule of thumb or history detect data and arrange, this proportioning inaccuracy is set, mainly the Monitoring Data of proportioning installation warrants is that history detects data or the data put sometime, can not truly reflect pendingly to fly ash composition, the type of pollutant, the content of pollutant and distribution.
Utility model content
The purpose of this utility model is a kind of pretreatment unit of waste incineration and generating electricity flying dust, to solve the problems of the technologies described above.
The utility model by the following technical solutions for achieving the above object: a kind of pretreatment unit of waste incineration and generating electricity flying dust, comprise flying dust storehouse, pre-processing device, flying dust metering device, cement bin, cement-weighting device, mixing roll, stabilizing agent stoste groove, stabilizing agent stock solution flow meter, distributed water flow meter, stabilizing agent tank diameter and conveying and metering pump, described flying dust storehouse is connected with pre-processing device by conveying worm, pre-processing device is connected with mixing roll, pre-processing device is provided with sample tap, flying dust metering device is provided with between pre-processing device and mixing roll, cement bin is connected with mixing roll, and between cement bin and mixing roll, be provided with cement-weighting device, described stabilizing agent tank diameter is connected with stabilizing agent stoste groove and water source respectively, stabilizing agent stock solution flow meter is provided with between stabilizing agent tank diameter and stabilizing agent stoste groove, distributed water flow meter is provided with between stabilizing agent tank diameter and water source, stabilizing agent tank diameter is connected with mixing roll, conveying and metering pump is provided with between stabilizing agent tank diameter and mixing roll.
Arrange the quantity of pre-processing device according to technological requirement, according to the size of locus, pre-processing device is set to vertical or horizontal, arranges the size of pre-processing device volume according to treatment scale every day.
Described pre-processing device selects powerful mixer.
Utilize the process method step of above-mentioned pretreatment unit as follows:
1) flying dust is delivered to pre-processing device by conveying worm, after being uniformly mixed of pre-processing device, carrying out sampling at pre-processing device sample tap and detect and analyze, obtain the kind of pollutant in flying dust, content and distributed data;
2) basis detects in the sampling of pre-processing device sample tap the detection analysis result and data setting cement and stabilizing agent ratio that obtain;
3) by flying dust, a certain proportion of cement and stabilizing agent after mixing roll fully mixes, stop mixing roll work also to start discharging;
4) flying dust after process enters the transport vehicle waited in its underpart, is transported to the landfill yard of specifying and carries out landfill.
The beneficial effects of the utility model are: the pretreatment unit of this waste incineration and generating electricity flying dust, and structure is simple, and reasonable in design, cost is low; Utilize this pretreatment unit in solidification and stabilization processing procedure, by detecting the detection analysis result and data that obtain in the sampling of pre-processing device sample tap, truly can reflect and pendingly fly ash composition, the type of pollutant, the content of pollutant and distribution, flying dust, stabilizing agent, cement, water proportional quantity arrange accurately, solidification and stabilization process effective.
Accompanying drawing explanation
Fig. 1 is this bright structural representation;
In figure: 1. flying dust storehouse, 2. pre-processing device, 3. flying dust metering device, 4. cement bin, 5. cement-weighting device, 6. mixing roll, 7. stabilizing agent stoste groove, 8. stabilizing agent stock solution flow meter, 9. distributed water flow meter, 10. stabilizing agent tank diameter, 11. conveying and metering pumps.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
As shown in Figure 1, a kind of pretreatment unit of waste incineration and generating electricity flying dust, comprise flying dust storehouse 1, pre-processing device 2, flying dust metering device 3, cement bin 4, cement-weighting device 5, mixing roll 6, stabilizing agent stoste groove 7, stabilizing agent stock solution flow meter 8, distributed water flow meter 9, stabilizing agent tank diameter 10 and conveying and metering pump 11, described flying dust storehouse 1 is connected with pre-processing device 2 by conveying worm (not shown), pre-processing device 2 is connected with mixing roll 6, pre-processing device 2 is provided with sample tap (not shown), flying dust metering device 3 is provided with between pre-processing device 2 and mixing roll 6, cement bin 4 is connected with mixing roll 6, and be provided with cement-weighting device 5 between cement bin 4 and mixing roll 6, described stabilizing agent tank diameter 10 is connected with stabilizing agent stoste groove 7 and water source respectively, stabilizing agent stock solution flow meter 8 is provided with between stabilizing agent tank diameter 10 and stabilizing agent stoste groove 7, distributed water flow meter 9 is provided with between stabilizing agent tank diameter 10 and water source, stabilizing agent tank diameter 10 is connected with mixing roll 6, conveying and metering pump 11 is provided with between stabilizing agent tank diameter 10 and mixing roll 6.
Arrange the quantity of pre-processing device 2 according to technological requirement, according to the size of locus, pre-processing device 2 is set to vertical or horizontal, arranges the size of pre-processing device 2 volume according to treatment scale every day.Described pre-processing device 2 selects powerful mixer.
Utilize the process method step of above-mentioned pretreatment unit as follows:
1) flying dust is delivered to pre-processing device 2 by conveying worm, after being uniformly mixed of pre-processing device 2, carry out sampling the kind, content and the distributed data that detect and analyze and obtain pollutant in flying dust at pre-processing device 2 sample tap;
2) basis detects in the sampling of pre-processing device 2 sample tap the detection analysis result and data setting cement and stabilizing agent ratio that obtain;
3) by flying dust, a certain proportion of cement and stabilizing agent after mixing roll 6 fully mixing, stop mixing roll 6 work and start discharging;
4) flying dust after process enters the transport vehicle waited in its underpart, is transported to the landfill yard of specifying and carries out landfill.
The operation principle of the pretreatment unit of a kind of waste incineration and generating electricity flying dust of the utility model, start this device, by conveying worm, the flying dust in flying dust storehouse is transported to pre-processing device, by discharge valve, the flying dust in pre-processing device is delivered to flying dust metering device, the capacity of quantitative flying dust by mixer enters in mixing roll by flying dust metering device in batches; Cement in cement bin, by cement-weighting device, quantitatively delivers to mixing roll; After mixing roll charging, mixing roll is charging no longer, starts working; Meanwhile, the stabilizing agent be stirred is added in mixing roll by conveying and metering pump according to the ratio set with flying dust amount, flying dust, cement, stabilizing agent are fully stirred, mix.
Obviously, embodiment described above is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Claims (3)
1. the pretreatment unit of a waste incineration and generating electricity flying dust, comprise flying dust storehouse, pre-processing device, flying dust metering device, cement bin, cement-weighting device, mixing roll, stabilizing agent stoste groove, stabilizing agent stock solution flow meter, distributed water flow meter, stabilizing agent tank diameter and conveying and metering pump, it is characterized in that, described flying dust storehouse is connected with pre-processing device by conveying worm, pre-processing device is connected with mixing roll, pre-processing device is provided with sample tap, flying dust metering device is provided with between pre-processing device and mixing roll, cement bin is connected with mixing roll, and between cement bin and mixing roll, be provided with cement-weighting device, described stabilizing agent tank diameter is connected with stabilizing agent stoste groove and water source respectively, stabilizing agent stock solution flow meter is provided with between stabilizing agent tank diameter and stabilizing agent stoste groove, distributed water flow meter is provided with between stabilizing agent tank diameter and water source, stabilizing agent tank diameter is connected with mixing roll, conveying and metering pump is provided with between stabilizing agent tank diameter and mixing roll.
2. the pretreatment unit of a kind of waste incineration and generating electricity flying dust according to claim 1, it is characterized in that, the quantity of pre-processing device is set according to technological requirement, according to the size of locus, pre-processing device is set to vertical or horizontal, arranges the size of pre-processing device volume according to treatment scale every day.
3. the pretreatment unit of a kind of waste incineration and generating electricity flying dust according to claim 1, it is characterized in that, described pre-processing device selects powerful mixer.
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| CN201520531393.9U CN204953510U (en) | 2015-07-22 | 2015-07-22 | Preprocessing device of waste incineration power generation flying dust |
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| CN201520531393.9U CN204953510U (en) | 2015-07-22 | 2015-07-22 | Preprocessing device of waste incineration power generation flying dust |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106363004A (en) * | 2015-07-22 | 2017-02-01 | 爱土工程环境科技有限公司 | Garbage burning electricity generation flying ash pre-treatment apparatus and garbage burning electricity generation flying ash treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106363004A (en) * | 2015-07-22 | 2017-02-01 | 爱土工程环境科技有限公司 | Garbage burning electricity generation flying ash pre-treatment apparatus and garbage burning electricity generation flying ash treatment method |
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