CN2512998Y - Coal firing boiler smoke desulfurizing agent Ca(OH)2 powder fluidizing bucket - Google Patents
Coal firing boiler smoke desulfurizing agent Ca(OH)2 powder fluidizing bucket Download PDFInfo
- Publication number
- CN2512998Y CN2512998Y CN 01255079 CN01255079U CN2512998Y CN 2512998 Y CN2512998 Y CN 2512998Y CN 01255079 CN01255079 CN 01255079 CN 01255079 U CN01255079 U CN 01255079U CN 2512998 Y CN2512998 Y CN 2512998Y
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- CN
- China
- Prior art keywords
- powder
- fluidisation
- fluidizing bucket
- desulfurizing agent
- bucket
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Abstract
The utility model provides a coal firing boiler smoke desulfurizing agent Ca(OH)2 powder fluidizing bucket, which is for desulfurizing the harmful matter SO2 that is discharged by the coal firing boiler.
Description
Technical field
The utility model is to be applied on the coal-burning boiler, to the harmful substance SO that contains in the coal-burning boiler institute discharged flue gas
2Carry out a kind of equipment of desulfurized treatment, particularly coal burning flue gas desulfurization agent Ca (OH)
2The powder fluidizing bucket.
Background technology
Existing desulfur technology is divided into two big classes substantially, and a class is wet desulphurization, and another kind of is dry desulfurization.The utility model belongs to the dry desulfurization scope.In the common dry-method desulfurization device, adopt screw-pushing type, in stove, increase calcium desulfurizing for the powder machine.Screw-pushing type is a screw-pushing type conveying lever for powder machine primary structure.The screw-pushing type conveying lever is driven by transmission device by alternating-current variable frequency motor or dc speed-regulating motor, the lime stone powder that derives from the desulfurizing agent feed bin is sent into the charging aperture of this equipment, and the powder amount size that enters casing is subjected to be controlled by the controller that baffle plate, sprocket wheel and baffle plate screw rod are formed.After the lime stone powder enters, because the promotion of spiral conveyor rod makes the lime stone powder through being sent to the desulphurizer of boiler charging aperture to tube cell.The powder-feeding amount size of this equipment is to realize by the rotating speed of a cover electric control gear adjusting rotary electric machine.The shortcoming of this equipment is, complex structure is bulky, serious wear, and hot-tempered sound is big, and the electric power energy consumption is big, the maintenance cost height.And because common CaCO
3Dry powder and the coal-fired back of mixing only depend on mechanical type spiral propeller feed, because CaCO without the fluidisation operation
3The hygroscopicity of powder is agglomerated into bulk easily, and institute is one of inefficient reason of desulphurization reaction so that the CaO specific surface area is long-pending little, emitted dose is inhomogeneous, be difficult to control.CaCO
3The hygroscopicity of powder is strong, very easily is attached on the screw rod again, causes for powder interruption or inhomogeneous, and directly the desulfurization dosage of boiler furnace is sent in influence, and the important technology index Ca/S ratio that forms in the sulfur removal technology is difficult to control, directly influences desulfuration efficiency.CaCO
3Thermal decomposition meeting at burner hearth absorbs a large amount of heat energy, influences boiler temperature and boiler operating efficiency.In-furnace calcium spraying causes the lime stone flying dust to increase in burner hearth, and is very big to the influence of the radiant heat transfer in the burner hearth, forms the slagging scorification and the knot ash of furnace wall cooling and superheater simultaneously easily, very big to the influence of the radiant heat transfer in the burner hearth; In-furnace calcium spraying has certain corrosion to boiler component, increases the boiler maintenance cost.
Summary of the invention
The utility model provides a kind of coal burning flue gas desulfurization agent Ca (OH) for addressing the above problem
2The powder fluidizing bucket,
Coal burning flue gas desulfurization agent Ca (OH)
2Powder fluidizing bucket structure is to be that airtight fluidisation staving 1 bottom is fixed with high strength fluidisation plate 2, has fine aperture on the high strength fluidisation plate; Fluidisation plate bottom is that Compressed Gas is all pressed chamber 3, and top is fluidising chamber 9; All press the indoor balance pipe 8 that is equipped with, balance pipe is communicated with inlet for pressurised gas 4, and it is external that inlet for pressurised gas stretches out fluidizing bucket; Powder adsorption pump 6 communicates with fluidising chamber 9 by powder absorbing pipe 5; Fluidisation staving top is communicated with desulfurizing agent and sends into mouth 10.
Powder adsorption pump 6 can be fixed on fluidisation staving top or side.
Operation principle: the utility model makes the Ca (OH) that comes from the desulfurizing agent feed bin
2Powder 7 is sent into mouth 10 through the desulfurizing agent of present device earlier before spraying into desulfurization reaction tower, abundant fluidisation in fluidizing bucket 1.When certain pressure and flow, and it is freezing through super-dry, the compressed air of purified treatment enters compressed air from inlet for pressurised gas 4 and all presses balance pipe 8 in the chamber 3, in all pressing chamber 3, Compressed Gas is distributed with some balance pipes, have the exhaust hole of some on the balance pipe, compressed air is discharged from exhaust hole, form one at the inner chamber of all pressing chamber 3 and had certain pressure, and pressure distribution is even, bottom surface to fluidisation plate 2 forms malleation shape degree, compressed air is pressed in the fluidising chamber 9 equably by the countless fine aperture of micropore fluidisation plate, makes the Ca (OH) that originally leaves on the fluidisation plate
2Powder fluidisation equably gets up, and makes Ca (OH)
2Powder particle fully suspends and " dispersing " state for 7 one-tenth.Ca under this state (OH)
2Powder especially as " speeding across the sky " form, forms Ca (OH)
2The self-disperse state that powder is splendid, its grain fineness further spreads, and specific area further enlarges, for improving gaseous substance SO
2With solid matter Ca (OH)
2The chemical reaction efficiency of powder has been created good physical condition, has overcome the problem that prior art exists effectively.
The utility model has overcome traditional shortcoming that calcium or calcium injection and desulfurization method are brought that increases in boiler, the desulfurization chemical reaction zone is transferred in the outside desulphurization reaction equipment of boiler by boiler internal, the work system of desulfurization reaction zone and boiler furnace is separated, has got rid of the adverse effect of traditional dry desulfurization the boiler operatiopn system.Omitted simultaneously a cover complicated mechanical puopulsion equipment greatly.Small investment of this equipment only is about 10% of traditional sulfur removal technology desulfurizing agent mixing conveying device investment.All drawbacks of conveying of screw-pushing type desulfurizing agent and interpolation link have been solved; Its equipment is reliable, and energy consumption is low, easy maintenance, and operating cost is low.In installation and operation to boiler plant and the operation almost without any interference.Its unit and complete property are very strong to the adaptability of boiler capacity, can be specially adapted to the national conditions that China has a large amount of medium small boilers by size configure one cover or a few covering device of boiler capacity.Equipment does not have and takies excessive area.The boiler desulfurization of middle low capacity directly adopts finished product Ca (OH)
2Absorbent saves a cover absorbent preparation system, reduces the gross investment scale greatly.Use the utility model and can effectively activate absorbent powder activity, once desulfurization efficient about 70% satisfies the requirement of flue gas first grade desulfurizing fully.
Description of drawings
Accompanying drawing is the utility model structural representation.
1 fluidizing bucket staving, 2 high strength fluidisation plates, 3 are all pressed chamber, 4 inlet for pressurised gas, 5 powder absorbing pipes, 6 powder adsorption pumps, 7Ca (OH)
2Fluidized powder, 8 balance pipes, 9 fluidising chamber, 10 desulfurizing agents are sent into mouth.
The specific embodiment
Coal burning flue gas desulfurization agent Ca (OH)
2Powder fluidizing bucket structure is that airtight fluidisation staving 1 bottom is fixed with high strength fluidisation plate 2, has fine aperture on the high strength fluidisation plate; Fluidisation plate bottom is that Compressed Gas is all pressed chamber 3, and top is fluidising chamber 9; All press the indoor balance pipe 8 that is equipped with, balance pipe is communicated with inlet for pressurised gas 4, and it is external that inlet for pressurised gas stretches out fluidizing bucket; Powder adsorption pump 6 is fixed on fluidisation staving top; Powder adsorption pump 6 communicates with fluidising chamber 9 by powder absorbing pipe 5; Fluidisation staving top is communicated with desulfurizing agent and sends into mouth 10.
Claims (2)
1, a kind of coal burning flue gas desulfurization agent Ca (OH)
2The powder fluidizing bucket is characterized in that airtight fluidisation staving (1) bottom is fixed with high strength fluidisation plate (2), has fine aperture on the high strength fluidisation plate; Fluidisation plate bottom is that Compressed Gas is all pressed chamber (3), and top is fluidising chamber (9); All press the indoor balance pipe (8) that is equipped with, balance pipe is communicated with inlet for pressurised gas (4), and it is external that inlet for pressurised gas stretches out fluidizing bucket; Powder adsorption pump (6) communicates with fluidising chamber (9) by powder absorbing pipe (5); Fluidisation staving top is communicated with desulfurizing agent and sends into mouthful (10).
2, according to the described coal burning flue gas desulfurization agent of claim 1 Ca (OH)
2The powder fluidizing bucket is characterized in that powder adsorption pump (6) is fixed on fluidisation staving top or side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01255079 CN2512998Y (en) | 2001-12-04 | 2001-12-04 | Coal firing boiler smoke desulfurizing agent Ca(OH)2 powder fluidizing bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01255079 CN2512998Y (en) | 2001-12-04 | 2001-12-04 | Coal firing boiler smoke desulfurizing agent Ca(OH)2 powder fluidizing bucket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2512998Y true CN2512998Y (en) | 2002-09-25 |
Family
ID=33664283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01255079 Expired - Fee Related CN2512998Y (en) | 2001-12-04 | 2001-12-04 | Coal firing boiler smoke desulfurizing agent Ca(OH)2 powder fluidizing bucket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2512998Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761934B (en) * | 2010-01-08 | 2011-09-28 | 武汉华尔顺冶金工程技术有限公司 | Burning method for pulverized solid fuels transferred by dilute phase pneumatic in tunnel kiln and dilute phase pneumatic transferring system |
| CN102806006A (en) * | 2012-08-30 | 2012-12-05 | 太原重工股份有限公司 | Flue gas desulfurization purifying system |
| CN110496590A (en) * | 2019-08-12 | 2019-11-26 | 江苏宇星工贸有限公司 | The production technology of ferric oxide desulfurizer |
| CN111701437A (en) * | 2020-06-16 | 2020-09-25 | 太原市晶磊科技有限公司 | Flue gas desulfurizing agent |
-
2001
- 2001-12-04 CN CN 01255079 patent/CN2512998Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761934B (en) * | 2010-01-08 | 2011-09-28 | 武汉华尔顺冶金工程技术有限公司 | Burning method for pulverized solid fuels transferred by dilute phase pneumatic in tunnel kiln and dilute phase pneumatic transferring system |
| CN102806006A (en) * | 2012-08-30 | 2012-12-05 | 太原重工股份有限公司 | Flue gas desulfurization purifying system |
| CN102806006B (en) * | 2012-08-30 | 2015-06-24 | 太原重工股份有限公司 | Flue gas desulfurization purifying system |
| CN110496590A (en) * | 2019-08-12 | 2019-11-26 | 江苏宇星工贸有限公司 | The production technology of ferric oxide desulfurizer |
| CN111701437A (en) * | 2020-06-16 | 2020-09-25 | 太原市晶磊科技有限公司 | Flue gas desulfurizing agent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |