CN212881747U - Semi-dry desulfurization tower with activated carbon mixing device - Google Patents
Semi-dry desulfurization tower with activated carbon mixing device Download PDFInfo
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- CN212881747U CN212881747U CN202021065511.9U CN202021065511U CN212881747U CN 212881747 U CN212881747 U CN 212881747U CN 202021065511 U CN202021065511 U CN 202021065511U CN 212881747 U CN212881747 U CN 212881747U
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Abstract
The utility model relates to a take activated carbon mixing arrangement's semidry process desulfurizing tower, including semidry process desulfurizing tower, its characterized in that: the semi-dry desulfurization tower is characterized in that an inlet flue is arranged at the top of the semi-dry desulfurization tower, an outlet flue is arranged on the side wall of the lower part of the semi-dry desulfurization tower, an activated carbon injection system is further arranged on the side wall of the lower part of the semi-dry desulfurization tower, which is opposite to the outlet flue, a nozzle is arranged on the activated carbon injection system, an activated carbon mixing device is further arranged between the nozzle of the activated carbon injection system at the lower part of the semi-dry desulfurization tower and the outlet flue, and the axial lead of the activated carbon mixing device, the axial lead of the activated carbon injection system and the axial lead. The utility model discloses make active carbon powder and flue gas through strong torrent homogeneous mixing, harmful substance such as dioxin improves the efficiency of getting rid of the dioxin in abundant effectual absorption flue gas to the material has been practiced thrift.
Description
Technical Field
The utility model relates to a semidry flue gas desulfurization device especially discloses a semidry desulfurizing tower of taking active carbon mixing arrangement, is applied to among the semidry flue gas desulfurization system of rubbish power plant, belongs to the atmosphere pollution prevention and cure field.
Background
The municipal solid waste incineration power generation is taken as a main process for harmless treatment of the waste, and reduction, harmlessness and recycling of the waste can be quickly realized, so that the municipal solid waste incineration power generation is popularized and applied more and more widely in China. Aiming at the problem that the classification of domestic municipal solid waste is incomplete, dioxin and heavy metal are inevitably generated in the incineration process, and environmental pollution to a certain degree can be caused.
In most waste incineration power plants in China, an activated carbon powder spraying device is arranged on an inlet flue of a bag type dust collector, and dry activated carbon powder is sprayed into the flue in front of the dust collector through compressed air in a pneumatic mode to adsorb dioxin in flue gas.
Most of nozzles adopted by the existing activated carbon injection system are spray pipes. The spray pipe has a plurality of problems in practical application: 1. the sprayed activated carbon is too dense and has poor adsorption effect; the aperture of the spray pipe is large, the sprayed activated carbon is too concentrated, the activated carbon is not fully contacted with the flue gas, and harmful substances in the flue gas are not fully absorbed. 2. The shower nozzle is relatively fixed, consequently causes the active carbon injection scope narrow and small to cause the active carbon to spray the back coverage area not enough from this, and the active carbon particle density in the active carbon coverage is great, thereby has seriously influenced the efficiency of active carbon to pollutant adsorption purification operation in the tail gas, also leads to simultaneously that a large amount of active carbon can not effectually participate in to the tail gas clean-up operation, thereby causes great material waste. Under the environment with increasingly strict environmental protection requirements, especially the pollution problem of dioxin substances becomes the focus of public attention, the high requirement on the dioxin removal efficiency and the continuous stability monitoring are also increasingly strict, so that the design of a high-efficiency and stable active carbon mixing device is particularly important, and if the dioxin is discharged in an overproof manner, the environmental pollution or huge loss caused by furnace shutdown is caused.
Disclosure of Invention
The utility model aims at solving prior art's defect, design a take activated carbon mixing arrangement's semidry desulfurization tower, rubbish power plant semidry flue gas desulfurization system's flue gas is through strong torrent and the last homogeneous mixing of activated carbon powder, has increased the contact time of activated carbon powder with the flue gas in the flue gas to harmful substance such as dioxin in the more effective absorption flue gas, both practiced thrift material consumption, the flue gas that again can make the emission satisfies emission standard.
The utility model discloses a realize like this: the utility model provides a take semi-dry desulfurization tower of active carbon mixing arrangement, includes semi-dry desulfurization tower, its characterized in that: the semi-dry desulfurization tower is characterized in that an inlet flue is arranged at the top of the semi-dry desulfurization tower, an outlet flue is arranged on the side wall of the lower part of the semi-dry desulfurization tower, an activated carbon injection system is further arranged on the side wall of the lower part of the semi-dry desulfurization tower, which is opposite to the outlet flue, a nozzle is arranged on the activated carbon injection system, an activated carbon mixing device is further arranged between the nozzle of the activated carbon injection system at the lower part of the semi-dry desulfurization tower and the outlet flue, and the axial lead of the activated carbon mixing device, the axial lead of the activated carbon injection system and the axial lead.
Activated carbon mixing arrangement be equipped with export flue size assorted cylinder shape or cuboid shape's barrel, adopt by carbon steel overcoat anticorrosive coating, stainless steel 316L or alloy material in one or more combination make, through shaped steel support frame and semi-dry desulfurization tower bottom's inner wall welded fastening, the inside whirl blade that is equipped with of barrel, whirl blade be a plurality of independent little blades that are fixed in on the activated carbon mixing arrangement inner wall through the welding equipartition, little blade length is less than the radius of activated carbon mixing arrangement barrel, the central passage that forms after clearance between two adjacent little blades and a plurality of little blade are fixed is flue gas flow channel, activated carbon and flue gas pass through flue gas flow channel and form the whirl air current. Make flue gas and active carbon powder mix more fully, compare ordinary baffle formula blender, not only the mixing effect is better, and is littleer to the flue gas resistance in the active carbon mixing arrangement, and the outlet velocity of flow is faster.
The utility model has the advantages that: the utility model discloses be applied to among the semi-dry desulfurization system of msw incineration power plant for get rid of the dioxin that msw incineration produced, the active carbon powder after spraying through injection system passes through strong torrent homogeneous mixing through the flue gas that active carbon mixing arrangement and desulfurization system produced again, has increased the contact time of active carbon powder with the flue gas in the flue gas, can effectively strengthen the gasAnd the active carbon powder fully and effectively adsorbs harmful substances such as dioxin in the flue gas by full contact between the active carbon powder and the flue gas, so that mass transfer and trapping are rapidly completed, the efficiency of removing the dioxin is improved, and the consumption of materials is effectively saved. The utility model discloses harmful substance such as dioxin has higher efficiency of getting rid of in the flue gas, and the flue gas after active carbon adsorption treatment satisfies current strict emission standard 0.1ngI-TEQ/N3m (i.e., the dioxin content per cubic meter of flue gas is less than 100 parts per billion grams).
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic diagram of a side view structure of the activated carbon mixing device of the present invention.
In the figure: 1. a semi-dry desulfurization tower; 2. An inlet flue; 3. An outlet flue; 4. An activated carbon mixing device; 5. an activated carbon injection system nozzle; 6. and (4) swirl vanes.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
According to the attached drawing 1, the utility model relates to a take semi-dry desulfurizing tower of active carbon mixing arrangement, including semi-dry desulfurizing tower 1, locate the import flue 2 at semi-dry desulfurizing tower 1 top, locate export flue 3 on the lateral wall of semi-dry desulfurizing tower 1 lower part and locate on the lateral wall of semi-dry desulfurizing tower 1 lower part and the active carbon injection system relative with export flue 3, active carbon injection system is equipped with nozzle 5, still is equipped with active carbon mixing arrangement 4 in semi-dry desulfurizing tower 1 lower part, installs between active carbon injection system's nozzle 5 and export flue 3, just the axial lead of active carbon mixing arrangement 4 and active carbon injection system's axial lead and the axial lead of export flue 3 be in same water flat line.
The activated carbon mixing device 4 is a cylinder with swirl blades 6, the shape of the activated carbon mixing device is a cylinder or a cuboid matched with the size of the outlet flue 3, and the activated carbon mixing device can be made of one or more selected from carbon steel outer coating anticorrosive coating, stainless steel 316L or alloy materials. The activated carbon mixing device 4 is fixedly welded with the inner wall of the bottom of the semi-dry desulfurization tower 1 through a profile steel support frame. Swirl vane 6 is through welded fastening active carbon mixing arrangement 4's inner wall on, swirl vane 6 locate the independent little blade on the 4 inner walls of active carbon mixing arrangement for a plurality of equipartitions, little blade length is less than the radius of the 4 barrel of active carbon mixing arrangement, the central channel that forms after clearance and a plurality of little blade between two adjacent little blades are fixed is the flue gas circulation passageway, the active carbon passes through the flue gas circulation passageway with the flue gas and forms rotatory air current, it is more abundant to make flue gas and active carbon powder mix, compare ordinary baffle formula blender, not only the mixed effect is better, and is littleer to the flue gas resistance in the active carbon mixing arrangement 4, the outlet flow velocity is faster.
Because the flue gas produces strong torrent through whirl blade 6, the utility model discloses make from 5 spun activated carbon powder of spouting of activated carbon injection system, carry out the homogeneous mixing in 4 departments of activated carbon mixing arrangement and flue gas, strengthened gas, the abundant contact between solid, effectively increased the contact time of activated carbon powder and flue gas, accomplish mass transfer and entrapment rapidly, activated carbon's adsorption capacity has obtained make full use of, improved the efficiency of getting rid of dioxin and other harmful substance, when effectively practicing thrift the material, current strict fume emission standard has been satisfied.
Claims (5)
1. The utility model provides a take semi-dry desulfurization tower of active carbon mixing arrangement, includes semi-dry desulfurization tower, its characterized in that: the semi-dry desulfurization tower is characterized in that an inlet flue is arranged at the top of the semi-dry desulfurization tower, an outlet flue is arranged on the side wall of the lower part of the semi-dry desulfurization tower, an activated carbon injection system is further arranged on the side wall of the lower part of the semi-dry desulfurization tower, which is opposite to the outlet flue, a nozzle is arranged on the activated carbon injection system, an activated carbon mixing device is further arranged between the nozzle of the activated carbon injection system at the lower part of the semi-dry desulfurization tower and the outlet flue, and the axial lead of the activated carbon mixing device, the axial lead of the activated carbon injection system and the axial lead.
2. The semi-dry desulfurization tower with an activated carbon mixing device according to claim 1, characterized in that: activated carbon mixing arrangement be equipped with export flue size assorted cylinder shape or cuboid shape's barrel, through the inner wall welded fastening of shaped steel support frame and semi-dry desulfurization tower bottom, the inside whirl blade that is equipped with of barrel, the whirl blade be a plurality of independent little blades that are fixed in on the activated carbon mixing arrangement inner wall through the welding equipartition, little blade length is less than the radius of activated carbon mixing arrangement barrel, the central passage that forms after clearance between two adjacent little blades and a plurality of little blades are fixed is flue gas circulation passageway, activated carbon and flue gas pass through flue gas circulation passageway and form rotatory air current.
3. The semi-dry desulfurization tower with an activated carbon mixing device according to claim 1, characterized in that: the cylinder of the active carbon mixing device is made of carbon steel coated with a corrosion-proof layer.
4. The semi-dry desulfurization tower with an activated carbon mixing device according to claim 1, characterized in that: the cylinder of the active carbon mixing device is made of stainless steel 316L.
5. The semi-dry desulfurization tower with an activated carbon mixing device according to claim 1, characterized in that: the cylinder of the active carbon mixing device is made of alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021065511.9U CN212881747U (en) | 2020-06-11 | 2020-06-11 | Semi-dry desulfurization tower with activated carbon mixing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021065511.9U CN212881747U (en) | 2020-06-11 | 2020-06-11 | Semi-dry desulfurization tower with activated carbon mixing device |
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| CN212881747U true CN212881747U (en) | 2021-04-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413729A (en) * | 2021-05-24 | 2021-09-21 | 杭州内明科技有限公司 | Waste incineration dioxin treatment device |
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2020
- 2020-06-11 CN CN202021065511.9U patent/CN212881747U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413729A (en) * | 2021-05-24 | 2021-09-21 | 杭州内明科技有限公司 | Waste incineration dioxin treatment device |
| CN113413729B (en) * | 2021-05-24 | 2022-07-19 | 杭州内明科技有限公司 | Waste incineration dioxin treatment device |
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