CN204841292U - Dust removal economizer of lime stone feed system of thermal power factory - Google Patents
Dust removal economizer of lime stone feed system of thermal power factory Download PDFInfo
- Publication number
- CN204841292U CN204841292U CN201520571561.7U CN201520571561U CN204841292U CN 204841292 U CN204841292 U CN 204841292U CN 201520571561 U CN201520571561 U CN 201520571561U CN 204841292 U CN204841292 U CN 204841292U
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- CN
- China
- Prior art keywords
- lime stone
- dust
- thermal power
- desulfurizing tower
- dedusting
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a dust removal economizer of lime stone feed system of thermal power factory, includes: between lime stone storehouse 1, batcher 2, lime stone mill 3, the ware 4 that converges, dust exhausting fan 5, lime stone are unloaded 6, desulfurizing tower 7, fountain dust remover 8, its characterized in that: dust exhausting fan 5's entry simultaneously respectively and lime stone storehouse 1 unload with the lime stone between 6 top intercommunication, dust exhausting fan 5's export is connected with the entry flue of desulfurizing tower 7 all the way, and another way then is connected through the fountain dust remover 8 and the ware 4 that converges. The beneficial effects of the utility model are that: simplify the system, practiced thrift the investment, improved dust removal effect, reduced the energy consumption.
Description
Technical field
The utility model relates to lime stone feed dedusting technology field, thermal power plant, is exactly a kind of thermal power plant lime stone feeding system dedusting energy-saving device.
Background technology
Lime stone--gypsum sulfur removal technology is most widely used a kind of Boiler Flue Gas Desulphurization Technology in the world.Its principle is: lime stone is ground into powder and then add water and make slurries and pump into absorption tower (or claim desulfurizing tower) as absorbent and fully contact mixing with flue gas, sulfur dioxide in flue gas and the calcium carbonate in slurries and the air blasted from bottom, absorption tower carry out oxidation reaction and generate calcium sulfate, after calcium sulfate reaches certain saturation degree, crystallization forms dihydrate gypsum, self-absorption tower is discharged, and the flue gas after desulfurization then enters air by chimney.After lime stone transports power plant to, first unload to the underground dump skip between lime stone discharging, then through oscillating feeder, tramp iron separator, bucket elevator, horizontal feed adhesive tape, store to Limestone silo; When lime stone slurry produced by needs, then be delivered to lime stone grinding machine by Weighing type batcher.During in order to prevent automobile discharging, between lime stone discharging and is produced from Limestone silo top the agstone dust pollution of dirt, prior art is respectively equipped with a set of reverse winding-up bag-type dust collector, its shortcoming is: sack cleaner needs larger dedusting ventilation, just can reach the dust removing effects of expection, the dedusting ventilator that thus must design relatively high power just can meet the demands; Secondly, oppositely during the work of winding-up sack cleaner, need to consume compressed air for instrument, cause air compressor machine power consumption to increase; Again, the lime stone dust collected by described dust-collecting bag comes back between unlimited lime stone discharging and the Limestone silo headroom of bad sealing respectively, causes dust iterative cycles, and efficiency of dust collection reduces.
Summary of the invention
The utility model is the problems referred to above solving prior art existence, and provides a kind of thermal power plant lime stone feeding system dedusting energy-saving device.
The utility model solves the technical scheme that its technical problem adopts: a kind of thermal power plant lime stone feeding system dedusting energy-saving device, comprise: Limestone silo (1), batcher (2), lime stone grinding machine (3), taper bucket (4), dedusting fan (5), between lime stone discharging (6), desulfurizing tower (7), spray type dust separator (8), it is characterized in that: Limestone silo (1) is connected with lime stone grinding machine (3) by batcher (2), the feed pipe of lime stone grinding machine (3) is provided with junction station (4): the entrance of dedusting fan (5) is communicated with the top of (6) between Limestone silo (1) with lime stone discharging simultaneously respectively, outlet one tunnel of dedusting fan (5) is connected with the gas approach of desulfurizing tower (7), and connecting pipe dust outlet place is provided with non-return valve, and another road is then connected with junction station (4) by spray type dust separator (8), described spray type dust separator (8) is provided with water inlet pipe a, blast pipe b and observation window.
The utility model compared with the prior art its beneficial effect is: when entering desulfurizing tower after the lime stone dust that) dedusting fan is discharged mixes with boiler original flue gas, lime stone dust can dissolve in the lime stone slurry under from desulfurization top of tower spray, participate in the desulfurization chemical reaction of boiler smoke, avoid the iterative cycles that lime stone dust is expected in pond and Limestone silo between lime stone discharging, but a step arrives desulfurizing tower is recovered utilization; Meanwhile, the raising of flue gas oxygen content is conducive to the generation of gypsum, and thus the power consumption of flue gas FGD oxidation fan can suitably reduce.Two) for oppositely the jet cancellation of sack cleaner of dedusting fan entrance creates condition, the cancellation of sack cleaner simplifies system, reduces investment, make that the draw resistance of dedusting fan reduces, operational efficiency improves, therefore the rated power of dedusting fan can reduce further, and can be shared it between Limestone silo and lime stone discharging, thus both reduce power consumption, also improve the utilization rate of equipment.Three) avoid compressed-air actuated consumption, reduce air compressor machine power consumption.Four) when desulfurizing tower is stopped transport, the dust-contained airflow of dedusting fan outlet can also enter lime stone grinding machine, two kinds of dust reclaim approach all avoid dedusting fan to empty exhaust noise.
Accompanying drawing explanation
Fig. 1 is the utility model system principle schematic diagram.
In figure: 1-Limestone silo, 2-batcher, 3-lime stone grinding machine, 4-junction station, 5-dedusting fan, between the discharging of 6-lime stone, 7-desulfurizing tower, 8-spray type dust separator.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, illustrated embodiment is only for explaining explanation, being not intended to limit scope of the present utility model.All any amendments, improvement, equivalent replacement etc. made within thought of the present utility model and principle, all should be included within protection domain of the present utility model.
See Fig. 1, a kind of thermal power plant lime stone feeding system dedusting energy-saving device, comprise: (6), desulfurizing tower (7), spray type dust separator (8) between Limestone silo (1), batcher (2), lime stone grinding machine (3), junction station (4), dedusting fan (5), lime stone discharging, wherein: Limestone silo (1) is connected with lime stone grinding machine (3) by batcher (2), the feed pipe of lime stone grinding machine (3) is provided with junction station (4); The entrance of dedusting fan (5) stores (6) between (1) with lime stone discharging simultaneously respectively top with lime stone is communicated with; Outlet one tunnel of dedusting fan (5) is connected with the gas approach of desulfurizing tower (7), connecting pipe dust outlet place is provided with non-return valve (not shown), and another road is then connected with junction station (4) by spray type dust separator (8); Described spray type dust separator (8) is provided with water inlet pipe a, blast pipe b and observation window (not shown).
See Fig. 1, the upper water inlet pipe a of described spray type dust separator (8) can substitute the water inlet pipe on prior art junction station (4).
Claims (2)
1. a thermal power plant lime stone feeding system dedusting energy-saving device, comprise: (6), desulfurizing tower (7), spray type dust separator (8) between Limestone silo (1), batcher (2), lime stone grinding machine (3), junction station (4), dedusting fan (5), lime stone discharging, it is characterized in that: Limestone silo (1) is connected with lime stone grinding machine (3) by batcher (2), the feed pipe of lime stone grinding machine (3) is provided with junction station (4); The entrance of dedusting fan (5) is communicated with the top of (6) between Limestone silo (1) with lime stone discharging simultaneously respectively; Outlet one tunnel of dedusting fan (5) is connected with the gas approach of desulfurizing tower (7), and connecting pipe dust outlet place is provided with non-return valve, and another road is then connected with junction station (4) by spray type dust separator (8).
2. a kind of thermal power plant as claimed in claim 1 lime stone feeding system dedusting energy-saving device, is characterized in that: described spray type dust separator (8) is provided with water inlet pipe a, blast pipe b and observation window.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201520571561.7U CN204841292U (en) | 2015-07-27 | 2015-07-27 | Dust removal economizer of lime stone feed system of thermal power factory |
Applications Claiming Priority (1)
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CN201520571561.7U CN204841292U (en) | 2015-07-27 | 2015-07-27 | Dust removal economizer of lime stone feed system of thermal power factory |
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CN204841292U true CN204841292U (en) | 2015-12-09 |
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CN201520571561.7U Expired - Fee Related CN204841292U (en) | 2015-07-27 | 2015-07-27 | Dust removal economizer of lime stone feed system of thermal power factory |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109012071A (en) * | 2018-06-21 | 2018-12-18 | 安徽溢彩玻璃器皿有限公司 | A kind of agstone desulfurization dust-removing technique and device |
-
2015
- 2015-07-27 CN CN201520571561.7U patent/CN204841292U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109012071A (en) * | 2018-06-21 | 2018-12-18 | 安徽溢彩玻璃器皿有限公司 | A kind of agstone desulfurization dust-removing technique and device |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160727 |