CN206911119U - The system equipment that flue gas passes through grinding slag dust-removal and desulfurizing denitration - Google Patents
The system equipment that flue gas passes through grinding slag dust-removal and desulfurizing denitration Download PDFInfo
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- CN206911119U CN206911119U CN201720546209.7U CN201720546209U CN206911119U CN 206911119 U CN206911119 U CN 206911119U CN 201720546209 U CN201720546209 U CN 201720546209U CN 206911119 U CN206911119 U CN 206911119U
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- flue gas
- desulphurization denitration
- flour mill
- denitration
- exit pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
A kind of system equipment the utility model discloses flue gas by grinding slag dust-removal and desulfurizing denitration, including Flue Gas Forced Draft Fan, deduster and chimney, it is characterised in that：Bottom in the outlet access flour mill of the Flue Gas Forced Draft Fan, bucket is added in the flour mill slag material suitable for reading that is provided with, desulphurization denitration flue gas exit pipe exports from flour mill top, the SO in flue gas2Raw physical-chemical reaction is issued in fume afterheat temperature conditionss with NOx and CaO active materials feed powder, realizes desulphurization denitration, the flue gas after desulphurization denitration exports from the desulphurization denitration flue gas exit pipe on flour mill top；Top in the outlet access deduster of desulphurization denitration flue gas exit pipe, neat stress efferent duct, the outlet access chimney of neat stress efferent duct are provided with the deduster top side relative with desulphurization denitration flue gas exit pipe.The equipment, the process simplification of desulphurization denitration dedusting, has saved the energy, avoids investment construction desulphurization denitration facility, and desulfurization dust-removing efficiency is high and stably, and operating cost is low.
Description
Technical field
A kind of improvement of flue gas desulfurization and denitrification equipment is the utility model is related to, specifically a kind of flue gas passes through grinding ore deposit
The system equipment of slag dust-removal and desulfurizing denitration.
Background technology
The flue gas of the Industrial Boilers such as steel industry, power industry, industrial furnace discharge, contains substantial amounts of SO2, NOx etc. has
Evil gas, has a strong impact on living environment and the economic development of the mankind, it is necessary to which take measures purifying smoke, controls atmosphere pollution.Mesh
Before, domestic fume desulphurization method, including wet method and semidry method etc., method of denitration have SCR methods, force oxidizing process etc..But with calcium
Method is the wet desulfurizing process of main flow has operating cost height, investment is big, floor space is big, system complex, accessory substance gypsum profit
With the shortcomings of rate is low, waste water is difficult, but also CO can be produced2Cause carbon emission；Complex process, equipment pipe be present in the ammonia process of desulfurization
The shortcomings of road is perishable, aerosol, easily cause secondary atmosphere pollution；More ripe denitrating technique has SCR at this stage（Selection
Property catalytic reduction method）And SNCR（SNCR method）, but there is also operating cost is high, investment is big, it is complicated to safeguard, fortune
Row bad environments, the shortcomings of cycle of operation is short, and spent catalyst belong to dangerous chemical article, and recovery is difficult；Force oxygen
There is ozone preparation high energy consumption in change method denitration method, oxidation is incomplete, easily causes the shortcomings of secondary pollution.
Pass through retrieval, in order to overcome above the deficiencies in the prior art, existing a variety of flue gas desulfurization and denitrification new methods
Report, but there is not yet technique is simple, operating cost is low, investment is small, floor space is small, by-product utilized rate is high, non-secondary pollution,
The report of the few flue gas desulfurization and denitration method of resource consumption.
The content of the invention
The purpose of this utility model is to provide that a kind of technique is simple, operating cost is low, investment is small, floor space is small, secondary
The system equipment that the few flue gas of product utilization rate height, non-secondary pollution, resource consumption passes through grinding slag dust-removal and desulfurizing denitration.
In order to reach object above, technical scheme is used by the utility model：The flue gas passes through grinding slag dedusting
The system equipment of desulphurization denitration, including Flue Gas Forced Draft Fan, deduster and chimney, the import of Flue Gas Forced Draft Fan by pipeline with
The exhaust opening of industrial furnace or Industrial Boiler connects, it is characterised in that：The outlet of described Flue Gas Forced Draft Fan is defeated by flue gas
The bottom in pipe access flour mill is sent, adds bucket in the slag material suitable for reading that is provided with of flour mill, mill powder outlet is located at flour mill
Bottom, desulphurization denitration flue gas exit pipe are exported from flour mill top, and flue gas is conveyed into bottom in flour mill by Flue Gas Forced Draft Fan
Portion, and being flowed up along flour mill inner chamber, in the addition slag material suitable for reading of flour mill, slag material in flour mill while grind,
While flowing downward, convection current is formed with flue gas, flue gas mixed in flour mill with slag powder, uniformly contacted, and to slag
Powder is dried, because slag powder contains CaO active material feed powders, the SO in flue gas2With NOx and CaO active matter materials
Powder issues raw physical-chemical reaction in fume afterheat temperature conditionss, generates CaSO4With Ca (NO3)2, chemical equation is：
CaO+H2O=Ca(OH)2, 2Ca (OH)2+2SO2+O2=2CaSO4+2H2O, 3NO2+H2O=2HNO3+ NO, Ca (OH)2+2HNO3= Ca
(NO3)2+2H2O, realizes desulphurization denitration, and the flue gas after desulphurization denitration exports from the desulphurization denitration flue gas exit pipe on flour mill top；
Top in the outlet access deduster of desulphurization denitration flue gas exit pipe, on deduster top and desulphurization denitration flue gas exit pipe phase
To side be provided with neat stress efferent duct, the outlet access chimney of neat stress efferent duct, air inducing is provided with neat stress efferent duct
Machine；Slag-drip opening is provided with the bottom wall of deduster, is sent into after the dust collection discharged by slag-drip opening in warehouse for finished product.
Described deduster is sack cleaner, and its structure ＆ working mechanism is prior art.
Described flue gas delivery pipe is provided with power flow regulating valve, and powder is inputted by power flow governor valve control flue gas
The ratio between flow in grinding machine and slag material in input flour mill are（2.4—3）：1, that is, purify 2.4Nm3/h—3Nm3/ h needs
1kg slag material, while blower fan power is controlled by power adjusting, flue gas is flowed through from flour mill inner bottom part to flour mill internal upper part
Time be 3s -5s.
The beneficial effects of the utility model are：The flue gas by the system equipment of grinding slag dust-removal and desulfurizing denitration, by
In both utilizing fume afterheat dry powder in slag feed powder grinding machine using flue gas, make the SO in flue gas again2Lived with NOx and CaO
Property material feed powder under fume afterheat temperature conditionss fully occur physical-chemical reaction, desulphurization denitration is realized, so taking off desulfurization
The process simplification of nitre dedusting, has saved the energy, avoids investment construction desulphurization denitration facility, and desulfurization dust-removing efficiency is high and stably,
Operating cost is low.
Brief description of the drawings
Fig. 1 is assembling structure schematic front view of the present utility model.
Embodiment
Reference picture 1 is further described to the utility model.The system that the flue gas passes through grinding slag dust-removal and desulfurizing denitration
Equipment, the flue gas pass through the system equipment of grinding slag dust-removal and desulfurizing denitration, including Flue Gas Forced Draft Fan 1, deduster 2 and chimney
3, the import of Flue Gas Forced Draft Fan 1 is connected by pipeline with the exhaust opening of industrial furnace or Industrial Boiler, it is characterised in that：It is described
Flue Gas Forced Draft Fan 1 the bottom accessed by flue gas delivery pipe 4 in flour mill 5 of outlet, suitable for reading in flour mill 5 be provided with ore deposit
Slag charge adds bucket 6, and mill powder outlet 7 is located at the bottom of flour mill 5, and desulphurization denitration flue gas exit pipe 8 is defeated from the top of flour mill 5
Go out, so, flue gas is conveyed into the inner bottom part of flour mill 5 by Flue Gas Forced Draft Fan 1, and flowed up along the inner chamber of flour mill 5, in powder
The addition slag material suitable for reading of grinding machine 5, slag material is ground in the flour mill 5 on one side, while flow downward, and flue gas formation convection current,
Flue gas mixed in flour mill 5 with slag powder, uniformly contacted, and slag powder is dried, because slag powder contains
There are a CaO active material feed powders, the SO in flue gas2With NOx and CaO active materials feed powder biology is issued in fume afterheat temperature conditionss
Physicochemical reacts, and generates CaSO4With Ca (NO3)2, chemical equation is：CaO+H2O=Ca(OH)2, 2Ca (OH)2+2SO2+O2
=2CaSO4+2H2O, 3NO2+H2O=2HNO3+ NO, Ca (OH)2+2HNO3= Ca(NO3)2+2H2O, realizes desulphurization denitration, and desulfurization takes off
Flue gas after nitre exports from the desulphurization denitration flue gas exit pipe 8 on the top of flour mill 5；The outlet of desulphurization denitration flue gas exit pipe 8 connects
Enter the top in deduster 2, exported in the top of deduster 2 side relative with desulphurization denitration flue gas exit pipe 8 provided with neat stress
Pipe 9, the outlet access chimney 3 of neat stress efferent duct 9, is provided with air-introduced machine 10, so, by dedusting on neat stress efferent duct 9
Neat stress afterwards, chimney 3 is inputted by air-introduced machine 10 and discharged, has reached discharge standard, has avoided the pollution to air；In dedusting
The bottom wall of device 2 is provided with slag-drip opening 11, is sent into warehouse for finished product after the dust collection discharged by slag-drip opening 11, adds as construction material
Agent is added to use.
As improvement of the present utility model：Described deduster 2 is sack cleaner, and its structure ＆ working mechanism is existing
Technology.
Described flue gas delivery pipe 4 is provided with power flow regulating valve 12, and flue gas is controlled by power flow regulating valve 12
Flow in input flour mill 5 is with inputting the ratio between slag material in flour mill 5（2.4—3）：1, while pass through power adjusting control
Blower fan power processed, the time for making flue gas be flowed through from the inner bottom part of flour mill 5 to the internal upper part of flour mill 5 are 3s -5s；Pass through control ratio
Example and the time flowed through, make the SO in flue gas2Fully reacted with NOx.
By detection：SO in neat stress after the dedusting2Concentration of emission and NOx emission concentration meet qualified discharge mark
It is accurate.
Claims (2)
1. flue gas passes through the system equipment of grinding slag dust-removal and desulfurizing denitration, including Flue Gas Forced Draft Fan（1）, deduster（2）With
Chimney（3）, it is characterised in that：Described Flue Gas Forced Draft Fan（1）Outlet pass through flue gas delivery pipe（4）Access flour mill（5）
Interior bottom, in flour mill（5）It is suitable for reading be provided with slag material add bucket（6）, grind powder outlet（7）It is located at flour mill（5）Bottom
Portion, desulphurization denitration flue gas exit pipe（8）From flour mill（5）Top exports, the SO in flue gas2With NOx and CaO active material feed powders
Raw physical-chemical reaction is issued in fume afterheat temperature conditionss, realizes desulphurization denitration, the flue gas after desulphurization denitration is from flour mill（5）
The desulphurization denitration flue gas exit pipe on top（8）Output；Desulphurization denitration flue gas exit pipe（8）Outlet access deduster（2）Interior
Top, in deduster（2）Top and desulphurization denitration flue gas exit pipe（8）Relative side is provided with neat stress efferent duct（9）, net cigarette
Gas efferent duct（9）Outlet access chimney（3）, in neat stress efferent duct（9）It is provided with air-introduced machine（10）.
2. flue gas according to claim 1 passes through the system equipment of grinding slag dust-removal and desulfurizing denitration, it is characterised in that：Institute
The flue gas delivery pipe stated（4）It is provided with power flow regulating valve（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720546209.7U CN206911119U (en) | 2017-05-17 | 2017-05-17 | The system equipment that flue gas passes through grinding slag dust-removal and desulfurizing denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720546209.7U CN206911119U (en) | 2017-05-17 | 2017-05-17 | The system equipment that flue gas passes through grinding slag dust-removal and desulfurizing denitration |
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| Publication Number | Publication Date |
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| CN206911119U true CN206911119U (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720546209.7U Active CN206911119U (en) | 2017-05-17 | 2017-05-17 | The system equipment that flue gas passes through grinding slag dust-removal and desulfurizing denitration |
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| CN (1) | CN206911119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914125A (en) * | 2017-05-17 | 2017-07-04 | 莱芜市泰钢工程设计研究有限公司 | Flue gas passes through grinding slag dust-removal and desulfurizing method of denitration and system equipment |
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2017
- 2017-05-17 CN CN201720546209.7U patent/CN206911119U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914125A (en) * | 2017-05-17 | 2017-07-04 | 莱芜市泰钢工程设计研究有限公司 | Flue gas passes through grinding slag dust-removal and desulfurizing method of denitration and system equipment |
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