CN201596445U - Equipment for removing dioxins in waste incineration smoke - Google Patents
Equipment for removing dioxins in waste incineration smoke Download PDFInfo
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- CN201596445U CN201596445U CN2009202189900U CN200920218990U CN201596445U CN 201596445 U CN201596445 U CN 201596445U CN 2009202189900 U CN2009202189900 U CN 2009202189900U CN 200920218990 U CN200920218990 U CN 200920218990U CN 201596445 U CN201596445 U CN 201596445U
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Abstract
The utility model discloses equipment for removing dioxins in waste incineration smoke, which comprises a Venturi ejector, a dry-type dust collector, filter equipment, a chimney and a crusher, wherein the Venturi ejector, the dry-type dust collector, the filter equipment, the chimney and the crusher are sequentially connected onto a gas duct, and the crusher is located below the filter equipment. The Venturi ejector comprises an activated carbon powder inlet and an ejecting opening located inside the gas duct, the filter equipment is provided with two inlets and two outlets, one inlet is an activated carbon particle inlet located on the upper portion of the filter equipment while the other inlet is a waste incineration smoke inlet which is located horizontally and provided with activated carbon fibers, one outlet is a waste incineration smoke outlet which is located horizontally and provided with activated carbon fibers while the other outlet is an activated carbon particle outlet located at the bottom of the filter equipment, and the crusher is arranged below the activated carbon particle outlet. The equipment can increase dioxins removing rate and reduce operation cost.
Description
Technical field
The utility model relates to a kind of waste gas treatment equipment, particularly a kind of equipment that removes of dioxin in waste incineration flue gas.
Background technology
The processing of rubbish is common in the burning mode.Because rubbish is rich in heavy metals such as hydro carbons, organic chloride and copper, in burning process, hydro carbons thing and organic chloride can generate dioxin through chemical reaction in the time of 280～450 °.In the reaction of formation of above-mentioned dioxin, the contained copper class material (metallic copper, cupric oxide and copper ion) of rubbish has then played the effect of catalyst.The English name of dioxin is Dioxins, is abbreviated as DXN, and it has the mankind sends out carcinous, urges deformity and immunotoxicity etc., is the extremely strong harmful substance of a kind of toxicity, therefore must thoroughly administer.People once attempted adopting granular active carbon adsorbing and removing dioxin cheap and easy to get, but owing to exist a large amount of dusts to stop up active carbon in the flue gas, removal effect is not good enough.See also Fig. 1, at present domestic bulky refuse burns power plant and generally adopts the group technology of venturi type injector and dry collector to remove dioxin, be about to powdered active carbon and spray into flue by the venturi type injector, behind the adsorbing and removing dioxin with flue gas in dust together remove to be collected by dry collector, the dioxin in the flue gas can be reduced to 0.1ng/m
3(European Union's 2000 standards).Mainly there is following defective in said method: 1), must consume a large amount of powdered active carbons for the dioxins concentration in the flue gas of refuse burning is reduced to European Union's standard, and usually at 15～20kg/h, about 1,500,000 yuan of annual operating cost, business burden is heavy; 2) the dioxin removal efficiency is limited, the minimum 0.05～0.06ng/m that reduces to
3, and the powdered active carbon consumption that need be multiplied.
Present domestic resident is increasingly sharpened to the repulsion psychology of waste incineration power plant, is the dioxin emission problem owing to the look change of what is said or talked about after all, and EU countries is also stepping up to formulate strict more dioxin discharging new standard.Under above-mentioned background, waste incineration power plant must improve existing dioxin removing process, makes every effort to reduce operating cost when further improving the dioxin removal efficiency.
The utility model content
The utility model provides a kind of equipment that removes that can improve the dioxin removal efficiency and reduce the dioxin in waste incineration flue gas of operating cost for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: a kind of equipment that removes of dioxin in waste incineration flue gas, comprise the venturi type injector that is connected in turn on the flue, dry collector, filter plant, chimney and be positioned at the pulverizer of described filter plant below, described venturi type injector comprises a powdered active carbon inlet and a jet that is positioned at flue, described filter plant is provided with two inlets and two outlets, an inlet is the granular active carbon inlet that is positioned at its top, another inlet is the flue gas of refuse burning inlet that is positioned at horizontal direction and is provided with NACF, an outlet is the flue gas of refuse burning outlet that is positioned at horizontal direction and is provided with NACF, another outlet is to be positioned at the outlet of the granular active carbon of its bottom, and the below of described granular active carbon outlet is provided with pulverizer.
Described dry collector is a sack cleaner.
Advantage and the good effect that the utlity model has are: 1) granular active carbon is cheap and easy to get, can partly remove dioxin, pulverizes to specific area behind the powdered active carbon enlarges markedly, and regains adsorption capacity, and the absorption utilization rate improves greatly.2) NACF is the efficient sorbing material that surmounts in granular active carbon, and it is remarkable not only to eliminate the dioxin effect, particle is also had the stronger effect of damming, but cost an arm and a leg.Lay the small amount of activated fiber at the filter plant smoke entrance, can under the condition of limited increase operating cost, avoid granular active carbon to stop up and lose efficacy, realize that simultaneously the essence of trace dioxin is taken off.
Description of drawings
Fig. 1 is that the dioxin that present domestic waste incineration power plant generally adopts removes the equipment schematic diagram;
Fig. 2 is the schematic diagram that the utility model dioxin in waste incineration flue gas removes equipment.
Among the figure: 1, flue gas of refuse burning; 2, powdered active carbon; 3, venturi type injector; 4, dry collector; 5, chimney; 6, granular active carbon; 7, filter plant; 8, NACF; 9, pulverizer.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 2, the equipment that removes of a kind of dioxin in waste incineration flue gas of the utility model, comprise the venturi type injector 3 that is connected with flue successively, dry collector 4, filter plant 7, chimney 5 and be positioned at the pulverizer 9 of filter plant 7 belows, described venturi type injector 3 is provided with inlet and jet that is positioned at flue of a powdered active carbon 2, described dry collector 4 and chimney 5 respectively have a flue gas of refuse burning import and outlet, described filter plant 7 is provided with two inlets and two outlets, an inlet is granular active carbon 6 inlets that are positioned at its top, another inlet is the flue gas of refuse burning inlet that is positioned at horizontal direction and is provided with NACF 8, an outlet is the flue gas of refuse burning outlet that is positioned at horizontal direction and is provided with NACF 8, another outlet is to be positioned at 6 outlets of the granular active carbon of its bottom, the below of described granular active carbon 6 outlets is provided with pulverizer 9, and described pulverizer 9 is provided with an inlet and an outlet.Granular active carbon 6 is also moved down continuously by the granular active carbon 6 inlet addings on filter plant 7 tops, enters pulverizer 9 inlets of filter plant 7 belows after granular active carbon 6 outlets in bottom are shifted out.Granular active carbon 6 is pulverized for discharging and deliver to venturi type injector 3 inlets along pulverizer 9 outlets in powdered active carbon 2 backs, after jet directly sprays into flue.Flue gas of refuse burning 1 is removed the back at dioxin by powdered active carbon 2, granular active carbon 6 and NACF 8 orders and enters atmosphere by chimney 5 along flue direction flow through successively venturi type injector 3, dry collector 4 and filter plant 7.Above-mentioned dry collector 4 is a sack cleaner.
Applicable cases of the present utility model:
Dioxin adopts the TCR TECORA systematic sampling of U.S. SGS company, utilizes high-resolution gas-chromatography/high resolution mass spectrum to carry out trace analysis.
Embodiment 1:
Flue gas flow: 83816m
3/ h, dioxin concentration: 5ng/m
3(above each value is for being converted into the butt value of 11% oxygen content)
At first spray into 6kg/h powdered active carbon 2 to flue by venturi type injector 3, dioxin in the flue gas of refuse burning is tentatively removed, flue gas enters sack cleaner 4 dedustings afterwards, and residual micro-dust is dammed by about 10kg NACF 8 when flue gas is flowed through filter plant 7 inlets.Flue gas passes about 20kg NACF 8 that filter plant 7 back dioxin are adsorbed in granular active carbon 6 and smoke outlet in succession, and content is reduced to 0.02ng/m
3, discharge through chimney 5.The granular active carbon 6 that shift out filter plant 7 bottoms enters pulverizer 9 and is ground into powdered active carbon 2, and the powdered active carbon 2 that sprays in total amount and the flue is identical.Above-mentioned filter plant 7 adopts the patent No. 200820142243.9 disclosed fluid units.
Through preresearch estimates, only about 50～700,000 yuan of the annual operating cost of said method, the dioxin concentration of emission only is 0.02ng/m
3, compare with the obvious advantage with the existing technology among Fig. 1.
Embodiment 2:
Flue gas flow: 92500m
3/ h, dioxin concentration: 10ng/m
3(above each value is for being converted into the butt value of 11% oxygen content)
At first spray into 10kg/h powdered active carbon 2 to flue by venturi type injector 3, dioxin in the flue gas of refuse burning is tentatively removed, flue gas enters sack cleaner 4 dedustings afterwards, and residual micro-dust is dammed by about 10kg NACF 8 when flue gas is flowed through filter plant 7 inlets.Flue gas passes about 40kg NACF 8 that filter plant 7 back dioxin are adsorbed in granular active carbon 6 and smoke outlet in succession, and content is reduced to 0.02ng/m
3, discharge through chimney 5.The granular active carbon 6 that shift out filter plant 7 bottoms enters pulverizer 9 and is ground into powdered active carbon 2, and the powdered active carbon 2 that sprays in total amount and the flue is identical.
Through preresearch estimates, about 1,000,000 yuan of the annual operating cost of said method, dioxin concentration of emission only are 0.03ng/m
3, compare with the obvious advantage with the existing technology among Fig. 1.
Although in conjunction with the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the present utility model.
Claims (2)
1. the equipment that removes of a dioxin in waste incineration flue gas, it is characterized in that, comprise the venturi type injector that is connected in turn on the flue, dry collector, filter plant and chimney and be positioned at the pulverizer of described filter plant below, described venturi type injector comprises a powdered active carbon inlet and a jet that is positioned at flue, described filter plant is provided with two inlets and two outlets, an inlet is the granular active carbon inlet that is positioned at its top, another inlet is the flue gas of refuse burning inlet that is positioned at horizontal direction and is provided with NACF, an outlet is the flue gas of refuse burning outlet that is positioned at horizontal direction and is provided with NACF, another outlet is to be positioned at the outlet of the granular active carbon of its bottom, and the below of described granular active carbon outlet is provided with pulverizer.
2. the equipment that removes of dioxin in waste incineration flue gas according to claim 1 is characterized in that, described dry collector is a sack cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202189900U CN201596445U (en) | 2009-12-11 | 2009-12-11 | Equipment for removing dioxins in waste incineration smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202189900U CN201596445U (en) | 2009-12-11 | 2009-12-11 | Equipment for removing dioxins in waste incineration smoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201596445U true CN201596445U (en) | 2010-10-06 |
Family
ID=42807491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202189900U Expired - Lifetime CN201596445U (en) | 2009-12-11 | 2009-12-11 | Equipment for removing dioxins in waste incineration smoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201596445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708424B (en) * | 2009-12-11 | 2011-11-02 | 天津泰达环保有限公司 | Method for removing dioxin in waste incineration flue gas and equipment thereof |
| CN106422665A (en) * | 2016-10-31 | 2017-02-22 | 中冶赛迪工程技术股份有限公司 | Flue-gas-purification active carbon spraying device |
-
2009
- 2009-12-11 CN CN2009202189900U patent/CN201596445U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708424B (en) * | 2009-12-11 | 2011-11-02 | 天津泰达环保有限公司 | Method for removing dioxin in waste incineration flue gas and equipment thereof |
| CN106422665A (en) * | 2016-10-31 | 2017-02-22 | 中冶赛迪工程技术股份有限公司 | Flue-gas-purification active carbon spraying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101006 Effective date of abandoning: 20091211 |