CN102921291A - Novel integrated device for tempering and desulphurizing smoke of glass smelting kiln by utilizing dry method - Google Patents
Novel integrated device for tempering and desulphurizing smoke of glass smelting kiln by utilizing dry method Download PDFInfo
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- CN102921291A CN102921291A CN2012104746182A CN201210474618A CN102921291A CN 102921291 A CN102921291 A CN 102921291A CN 2012104746182 A CN2012104746182 A CN 2012104746182A CN 201210474618 A CN201210474618 A CN 201210474618A CN 102921291 A CN102921291 A CN 102921291A
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- desulphurizing
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Abstract
The invention relates to a novel integrated device for tempering and desulphurizing the smoke of a glass smelting kiln by utilizing a dry method. The novel integrated device comprises a smoke pipeline of the glass smelting kiln (10), a tempering desulphurizing agent storage device, a constant feeding device and a dry-method tempering and desulphurizing integrated reactor system. The novel integrated device is characterized in that the tempering desulphurizing agent storage device comprises a tempering desulphurizing agent storage silo (3) connected with the smoke pipeline, wherein a spiral conveyor (5), a reducing scale (6) and a constant conveyor (7) are arranged below the storage silo (3) sequentially; the output end of the constant conveyor (7) is connected with a first port of a three-way feeding valve (9) through a star valve (8); a third port of the three-way feeding valve (9) is connected with the smoke pipeline of the glass smelting kiln (10); and the smoke pipeline is connected with the dry-method tempering and desulphurizing integrated reactor (11). The novel integrated device has the benefits that a Venturi tempering and desulphurizing integrated reactor is adopted; the design is exquisite and unique; and the mixing effect of air flows in a tower is good, so that the mixed tempering and desulphurizing effect of the smoke and the tempering desulphurizing agent is enhanced.
Description
Technical field
The present invention relates to flue gas processing device, relate in particular to the modified desulfurization integrated device of a kind of novel glass melting furnaces dry fume.
Background technology
Glass melter is the Industrial Stoves of a kind of high resource consumption, the discharging of high pollution thing and highly energy-consuming.In China's plate glass production process, mainly take heavy oil, natural gas, coal gas etc. as fuel, the melting furnaces fume emission causes serious atmosphere pollution problem, and wherein major pollutants are flue dust, SO
2And NO
xBegin to carry out " flat glass industry atmosphere pollutants emission standards " (GB 26453-2011), clear nitrogen oxide (NO in October, 2011
x) discharging is lower than 700 mg/Nm
3, SO
2Discharging is lower than 400 mg/Nm
3
At present, all adopt selective catalysis reduction (SCR) denitration technology for the flue gas of glass melting furnace denitration, because the SCR denitrating catalyst is subjected to the impact of flue gas flue dust, catalyst easily stops up, active component reduces, so that catalyst service life is very short and its cost is very high, glass enterprise generally adopts preposition hot electrostatic precipitator+SCR denitration reaction technique, reaches smoke content with expectation and reduces, thereby guarantee SCR catalyst activity and running time.
Yet the electric cleaner dust removing effects is not only relevant with deduster structure itself, and relevant with the character of flue gas to a great extent.Dust in the glass furnace fume mainly contains sodium sulfate salt (sodium sulphate), distils in high temperature melting glass surface gas phase; Even also have the oxysulfide from frit in the flue gas of burning natural gas, i.e. sulfur trioxide gas.Under specified temp, (be generally at 200 ℃ to 500 ℃), produce after the sodium sulphate that gets off from High-temperature cooling and the reaction of the gaseous sulfur trioxide the flue gas that viscosity is very large, the dust of high corrosion.This flue dust easily adheres to and corrosion dedusting pole plate, and dust removing effects is poor, brings very burden for simultaneously dedusting utmost point vibration dust-cleaning and ash bucket deashing.
Generally adopt the liquid phase adjusting material both at home and abroad or add additive to flue gas, such as sulfur trioxide, ammonium sulfate etc., improve flue gas flue dust character; These methods also are not suitable for flue gas of glass melting furnace, and simultaneously corrosion of fume is not reduced yet, on the efficiency of dust collection of electric cleaner and all consist of very big impact service life.
At present Technology for Domestic Flue Gas Desulfurization mostly is wet desulphurization, and desulfurization wastewater needs further to process, and desuifurizedly utilizes insufficiently, can only as the road surface filler, be unfavorable for the recycling of resource after the waste residue press filtration; Be the flue gas of natural gas for melting furnaces fuel simultaneously, its sulfoxide concentration is generally all lower, separately oxysulfide is processed, and cost of investment is large.
Summary of the invention
Purpose of the present invention is exactly in order to provide a kind of novel glass melting furnaces dry fume modified desulfurization integrated device, solution is guaranteeing under denitrating flue gas efficient, dust collection efficiency and the prerequisite in service life thereof, reduce adhesiveness and corrosive while of flue gas of glass melting furnace, effectively remove SO
2, be follow-up flue gas ash removal or the necessary condition of denitration processing creation.
The technical solution adopted for the present invention to solve the technical problems is:
The modified desulfurization integrated device of a kind of novel glass melting furnaces dry fume, the flue that comprises glass melter, also comprise modified desulfurizing agent storage device, metering device, the modified desulfurization integrated reactor assembly of dry method, it is characterized in that: described modified desulfurizing agent storage device comprises the modified desulfurizing agent storage silo that is connected with flue, the below of storage silo is provided with conveying worm, the output of conveying worm is provided with decrement and claims, the below that decrement claims is provided with apron quantitive conveyor, the output of apron quantitive conveyor is connected with the first port of threeway feed valve by Starlike valve, the second port of threeway feed valve is connected with compressed air hose by pipeline, the 3rd port is connected with the flue of glass melter, and flue is connected with the modified desulfurization integrated reactor of dry method.
The modified desulfurization integrated reactor of described dry method preferably adopts the modified desulfurization integrated reactor of venturi.
On the basis of above-mentioned main technical schemes, can increase following further perfect technical scheme:
Described modified desulfurizing agent storage silo bottom is provided with compressed air spray head, stops up to prevent modified the desulfurizing agent moisture absorption, bridge formation and caking in silo, and modified desulfurizing agent storage silo top is provided with sack cleaner and is used for collecting airborne dust.
The top of the modified desulfurization integrated reactor of described dry method connects flue-gas treater, and described flue-gas treater adopts electric cleaner and SCR denitration reaction device to consist of.
Beneficial effect of the present invention:
(1) adopt the modified desulfurization integrated reactor of venturi, deft design is unique, and air-flow good mixing effect in the tower has strengthened flue gas and desulfurized effect modified with mixing of modified desulfurizing agent.
(2) modified desulfurization integrated device, can effectively improve flue gas of glass melting furnace flue dust character, reduce its adhesiveness and corrosivity, for normal operation and the efficiency of dust collection of hot electrostatic precipitator provides powerful guarantee, guarantee the high activity of follow-up SCR denitrating catalyst and than the long life, reduced the catalyst use cost; And modified desulfurizing agent adopts calcium lime powder, soda ash or sodium acid carbonate, and is with low cost, and product is easy to transmission and collects.
(3) modified process also simultaneously can remove oxysulfide, wherein SO in the modified desulfurization integrated reactor of venturi
3Removal efficiency reaches more than 80%, SO
2Removal efficiency can reach 40%, reduces flue gas corrosion; Sweetening process is applicable to low SO
2The melting furnaces flue gas of concentration, particularly suitable fuel are the flue gas of glass melting furnace of natural gas, and present technique has realized that flue gas conditioning is desulfurization integrated, reduce cost of investment.
The present invention is further described below in conjunction with drawings and Examples.
Description of drawings:
Fig. 1 is front view of the present invention.
The specific embodiment
As shown in Figure 1, the present invention is the modified desulfurization integrated device of a kind of novel glass melting furnaces dry fume, comprises modified desulfurizing agent storage device, metering device, the modified desulfurization integrated reactor assembly of dry method.
A, modified desulfurizing agent storage device comprise: modified desulfurizing agent storage silo 3 and sack cleaner 2; Sack cleaner 2 is arranged in modified desulfurizing agent storage silo 3 tops.
B, dosing system comprise that conveying worm 5, decrement claim 6, apron quantitive conveyor 7, Starlike valve 8 and threeway feed valve 9.
C, the modified desulfurization integrated reactor assembly of dry method comprise: venturi mixes modified and desulphurization reaction process.
The modified desulfurizing agent of above-mentioned modified desulfurizing agent storage silo 3 outsides is delivered in the storage silo 3 by the storage silo top by compressed air 1; Storage silo 3 bottoms have been provided with compressed air spray head 4, stop up at the storage silo 3 interior moisture absorptions, bridge formation and caking to prevent modified desulfurizing agent, and sack cleaner 2 is arranged in modified desulfurizing agent storage silo 3 tops, and sack cleaner 2 is used for collecting the airborne dust of silo 3; When the sack cleaner pressure drop reaches setting value, the magnetic valve that is connected with compressed air 1 can be opened deashing automatically.
Decrement in the above-mentioned metering device claims the dosage of the modified desulfurizing agent of 6 controls; Modified desulfurizing agent is delivered to Starlike valve 8 through apron quantitive conveyor 7, enters threeway feed valve 9, by compressed air 1 modified desulfurizing agent is sprayed in modified desulfurizing tower 11 front end smoke canals.
Flue gas conditioning process and the sweetening process of the modified desulfurization integrated reactor 11 of above-mentioned dry method are integrated, compact conformation, little, the reduced investment of floor space; The preferred modified desulfurization integrated reactor of venturi that adopts; From melting furnaces 10 flue gas out and modified desulfurizing agent the modified desulfurization reactor of venturi 11 interior fully mix modified, the process of flue gas conditioning is carried out sweetening process simultaneously, flue gas after the modified desulfurization enters rear end flue-gas treater 12, to guarantee the long time stability operation of follow-up smoke gas treatment system.
Its implementation route is: the flue gas conditioning desulfurizing agent is take calcium lime powder as example, and compressed air 1 pneumatic transporting of outside calcium lime powder is delivered to storage silo 3, and storage silo 3 top layout have sack cleaner 2 to be used for collecting the airborne dust of calcium lime powder course of conveying; When the sack cleaner pressure drop reaches setting value, the magnetic valve that is connected with compressed air 1 can be opened deashing automatically; Storage silo 3 lower disposed have compressed air spray head 4, stop up at the silo 3 interior moisture absorptions, bridge formation and caking to prevent calcium lime powder; Calcium lime powder is transported to decrement by air-operated solenoid valve control through conveying worm 5 and claims 6, and decrement claims the dosage of 6 control calcium lime powders; Calcium lime powder is delivered to Starlike valve 8 through apron quantitive conveyor 7, enter threeway feed valve 9, calcium lime powder is sprayed in the flue of modified desulfurization reactor 11 front ends of venturi by compressed air 1, from glass melter 10 flue gas out and calcium lime powder the modified desulfurization reactor of venturi 11 interior fully mix modified, effectively reduce adhesiveness and the corrosivity of flue gas of glass melting furnace, modified process also simultaneously can effectively remove SO
2, the flue gas after the modified desulfurization enters rear end smoke gas treatment device 12, and namely flue gas is used for collecting flue dust and pulverized limestone reaction particles thing through hot electrostatic precipitator, and then flue gas enters the SCR Benitration reactor, and the flue gas after the purification drains in the air through chimney.
The implementation parameter
Take 110 t/d thin float glass production lines as example, the flue gas underlying parameter is: exhaust gas volumn 35,000 Nm
3/ h(hygrometric state), flue gas oxygen content 10%, moisture content 10%, 400 ℃ of flue-gas temperatures, SO
2Concentration (8%, dry state) 400mg/Nm
3, dust concentration (8%, dry state) 400 mg/Nm
3Flue gas is through modified desulfurization integrated device provided by the invention, and pulverized limestone silo volume is 20m
3, the modified desulfurization reactor of venturi is of a size of * 14.2m, compressed air (6bar) consumption 5Nm
3/ h, calcium lime powder straying quatity 27kg/h, flue gas adhesiveness and corrosivity are effectively improved after processing, and SO
2Concentration (8%, dry state) is down to 200 mg/Nm
3Can directly enter the rear end controlling device after the flue gas conditioning desulfurization.
Claims (3)
1. modified desulfurization integrated device of novel glass melting furnaces dry fume, the flue that comprises glass melter (10), also comprise modified desulfurizing agent storage device, metering device, the modified desulfurization integrated reactor assembly of dry method, it is characterized in that: described modified desulfurizing agent storage device comprises the modified desulfurizing agent storage silo (3) that is connected with flue, the below of storage silo (3) is provided with conveying worm (5), the output of conveying worm (5) is provided with decrement and claims (6), decrement claims the below of (6) to be provided with apron quantitive conveyor (7), the output of apron quantitive conveyor (7) is connected with the first port of threeway feed valve (9) by Starlike valve (8), the second port of threeway feed valve (9) is connected with compressed air (1) pipe by pipeline, the 3rd port is connected with the flue of glass melter (10), and flue is connected with the modified desulfurization integrated reactor of dry method (11).
2. the modified desulfurization integrated device of a kind of novel glass melting furnaces dry fume according to claim 1, it is characterized in that: modified desulfurizing agent storage silo (3) bottom is provided with compressed air spray head (4), to prevent that modified the desulfurizing agent moisture absorption, bridge formation and caking in silo from stopping up, modified desulfurizing agent storage silo (3) top is provided with sack cleaner (2) and is used for collecting airborne dust.
3. the modified desulfurization integrated device of a kind of novel glass melting furnaces dry fume according to claim 1 and 2 is characterized in that: the top connection flue-gas treater (12) of the modified desulfurization integrated reactor of dry method (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104746182A CN102921291A (en) | 2012-11-21 | 2012-11-21 | Novel integrated device for tempering and desulphurizing smoke of glass smelting kiln by utilizing dry method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104746182A CN102921291A (en) | 2012-11-21 | 2012-11-21 | Novel integrated device for tempering and desulphurizing smoke of glass smelting kiln by utilizing dry method |
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| CN102921291A true CN102921291A (en) | 2013-02-13 |
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Cited By (3)
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| CN104645741A (en) * | 2013-11-22 | 2015-05-27 | 河北建支铸造集团有限公司 | Quicklime-adding apparatus of bag-type dust remover |
| CN105617861A (en) * | 2016-04-01 | 2016-06-01 | 中国大唐集团科学技术研究院有限公司 | Device for removing SO3 through flue injection of dry powder adsorbent |
| CN109364736A (en) * | 2018-12-15 | 2019-02-22 | 深圳市凯盛科技工程有限公司 | Electronic glass total oxygen melting furnaces production line flue gas collaboration processing integrated apparatus |
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| CN102735070A (en) * | 2012-07-07 | 2012-10-17 | 江苏中建材环保研究院有限公司 | Desulfurization and denitrification afterheat power generation systematization device of glass melter flue gas |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104645741A (en) * | 2013-11-22 | 2015-05-27 | 河北建支铸造集团有限公司 | Quicklime-adding apparatus of bag-type dust remover |
| CN105617861A (en) * | 2016-04-01 | 2016-06-01 | 中国大唐集团科学技术研究院有限公司 | Device for removing SO3 through flue injection of dry powder adsorbent |
| CN105617861B (en) * | 2016-04-01 | 2019-04-23 | 中国大唐集团科学技术研究院有限公司 | A kind of dry powder adsorbent flue injection removing SO3Equipment |
| CN109364736A (en) * | 2018-12-15 | 2019-02-22 | 深圳市凯盛科技工程有限公司 | Electronic glass total oxygen melting furnaces production line flue gas collaboration processing integrated apparatus |
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Application publication date: 20130213 |