CN205019945U - Flue gas desulfurization reactor - Google Patents
Flue gas desulfurization reactor Download PDFInfo
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- CN205019945U CN205019945U CN201520604805.7U CN201520604805U CN205019945U CN 205019945 U CN205019945 U CN 205019945U CN 201520604805 U CN201520604805 U CN 201520604805U CN 205019945 U CN205019945 U CN 205019945U
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Abstract
The utility model discloses a flue gas desulfurization reactor, including the reactor casing, reactor casing upper portion is equipped with the exhanst gas outlet, is equipped with flue gas inlet on the lateral wall of reactor casing lower part, reactor casing internal stability is equipped with venturi, encloses into first flue gas passageway between venturi and the reactor casing, and the upper end of first flue gas passageway is sealed in flue gas inlet's top department, venturi includes contraction section, choke section and diffuser that from the bottom up set gradually, and flue gas inlet locates around being located venturi. The utility model discloses a flue gas desulfurization reactor, venturi changes its course and the disturbance to the flue gas that carries the desulfurizer, makes desulfurizer and flue gas misce bene, and process venturi's flue gas uniform flow makes desulfurizer and flue gas fully contact through reactor portion, under the prerequisite that does not increase equipment, the flue gas is longer in reactor's flow, and is longer with the contact time of desulfurizer, and flue gas desulfurization reaction is more abundant, and desulfurization efficiency is higher.
Description
Technical field
The utility model belongs to fume treatment technical field, is specifically related to a kind of flue gas desulfurization reactor.
Background technology
Along with National Industrial development, a large amount of uses of the fossil fuels such as coal, oil, natural gas, create a large amount of pollutants (as dust, SOx, NOx, HCl etc.), atmosphere pollution is more and more serious, particularly in recent years, there is the phenomenon of haze weather normalization, have a strong impact on the physical and mental health of environment and people.For pollution administration, emissions reduction, country has formulated more and more stricter environmental protection policy and regulation.For making fume emission reach national requirements for environmental protection, smoke desulfur denitrate and dust removal technology and equipment were constantly updated in recent years.
In glass furnace production process, need to consume a large amount of energy, the pollutant that fuel combustion produces comprises very harmful sour gas (SO
2, SO
3, NOx, HF, HCl etc.), heavy metal (Hg etc.) and dust etc.At present, glass furnace tail flue gas Processing tecchnics mainly contains two kinds, and one is first high temperature electrostatic dedusting, then carries out desulphurization denitration; Two is first desulfurization, then dedusting, then denitration.In flue gas desulfurization treatment facility, the effect of desulfurization reactor is mixed with flue gas by desulfurizing agent (absorbent), and the oxysulfide in desulfurizing agent and flue gas is fully reacted, and generates solid sulphur products, remove through follow-up deduster.Generally, desulfurizing agent mixes more even with flue gas, time of contact is longer, and desulfurized effect is better.
In prior art, patent CN101628201A discloses a kind of glass furnace fume device for smoke pollutants, comprise the heat recovery boiler connected successively, reaction tower, spiral-flow-type multistage-combination bag dust collector, ciculation fluidized skewed slot, cleaning flue gases is fantasy flue again, absorbent storehouse, feeding air skewed slot, air-introduced machine and chimney, the high temperature reaction zone of wherein said reaction tower is located at bottom reaction tower, the gas approach of high temperature reaction zone is through flue external glass using residual heat from kiln furnace recovery boiler exhaust outlet, ciculation fluidized reaction zone is located at reaction tower top, venturi accelerating region is located between high temperature reaction zone and ciculation fluidized reaction zone, the gas approach of spiral-flow-type multistage-combination bag dust collector is connected with the exhanst gas outlet of reaction tower, the outlet in absorbent storehouse is connected with the high temperature reaction zone of reaction tower through feeding air skewed slot, and absorbent (desulfurizing agent) is added in high temperature reaction zone by absorbent storehouse and feeding air skewed slot.In this type smoke pollutant removal device, although the setting of venturi accelerating region can reach the effect making flue gas even distribution, but high temperature reaction zone, venturi accelerating region, circulating sulfuration district are arranged in order from bottom to top, turbulent perturbation effect is less, desulfurizing agent and flue gas cannot be full and uniform, the height of equipment has been raised in the setting of high temperature reaction zone simultaneously, increases the volume of equipment, adds equipment investment.
Summary of the invention
The purpose of this utility model is to provide a kind of flue gas desulfurization reactor, solves desulfurizing agent and flue gas in existing flue gas desulfurization reactor and fully cannot mix the not high problem of the desulfuration efficiency that causes.
In order to realize above object, the technical scheme that the utility model adopts is:
A kind of flue gas desulfurization reactor, comprise reactor shell, described reactor shell top is provided with exhanst gas outlet, and reactor shell lower sides is provided with gas approach; Be installed with Venturi tube in reactor shell, surround the first exhaust gases passes between Venturi tube and reactor shell, place above gas approach, upper end of the first exhaust gases passes is closed; Described Venturi tube comprises the contraction section, trunnion section and the diffuser that set gradually from top to bottom, and gas approach is positioned at around Venturi tube to be located.
The below of the inherent Venturi tube of reactor shell is provided with dust collection chamber, and described dust collection chamber and the first exhaust gases passes are separated by the collection hawk being installed in reactor shell inside; Described collection hawk is provided with the ash discharging hole of connection first exhaust gases passes and dust collection chamber.
The sidewall of described dust collection chamber is provided with the cleaning door for deashing.The turnover of personnel when described cleaning door also can be used for plant maintenance and overhauls.
The described hawk that integrates is as big opening end funnel structure upwards, and the osculum end of funnel structure is the ash discharging hole of connection first exhaust gases passes and dust collection chamber.
Reactor shell is provided with between Venturi tube and exhanst gas outlet for the first sprayer unit to injection desulfurization agent in reactor shell.
Injection direction and the flow of flue gas direction of described first sprayer unit are perpendicular.
Reactor shell is also provided with between Venturi tube and described first sprayer unit the second sprayer unit for spraying denitrfying agent in reactor shell.
The injection direction of described second sprayer unit is identical with flow of flue gas direction.
Described flue gas desulfurization reactor also comprises the airduct be connected with gas approach; Described airduct is provided with the desulfurizing agent feeding device for being added by desulfurizing agent in flue gas.
Airduct is provided with between desulfurizing agent feeding device and the gas approach of reactor shell the blender for making flue gas in airduct and desulphurizer mixing.
Flue gas desulfurization reactor of the present utility model, is installed with Venturi tube in reactor shell, surrounds the first exhaust gases passes that place above gas approach, upper end is closed between this Venturi tube and reactor shell, and gas approach is positioned at around Venturi tube to be located; During use, the flue gas carrying desulfurizing agent enters reactor shell inside through gas approach, be forced to flow downward after running into Venturi tube outer wall, the passage formed in the circumferential between reactor shell inwall below the contraction section and gas approach of Venturi tube, bottom surface enters Venturi tube, successively through the contraction section of Venturi tube, trunnion section and diffuser, enter reactor shell inner upper, enter lower procedure deduster through exhanst gas outlet and carry out dedusting; Arrange Venturi tube and carry out disturbance to the flue gas carrying desulfurizing agent, desulfurizing agent is mixed with flue gas, and the flue gas through Venturi tube evenly flows through inside reactor, and desulfurizing agent is fully contacted with flue gas; Venturi tube changes its course to the flue gas entering reactor, under the prerequisite of not increasing device (eliminating high temperature reaction zone relative to prior art), the flow process of flue gas in reactor is longer, longer with the time of contact of desulfurizing agent, desulphurization reaction is more abundant, and desulfuration efficiency is higher.
Further, the below of the inherent Venturi tube of reactor shell is provided with dust collection chamber, and the sidewall of dust collection chamber is provided with the cleaning door for deashing; Before flue gas enters Venturi tube and when flowing through Venturi tube, flue gas is because changing its course or speed change, part big dust particle drops on collection hawk, deashing chamber is entered through ash discharging hole, staff can enter deashing chamber through cleaning door and carry out deashing, when cleaning door also can be used for plant maintenance and overhauls, the turnover of personnel, easy to operate.
Further, reactor shell is provided with above Venturi tube for the first sprayer unit to injection desulfurization agent in reactor shell; When the temperature entering flue gas is too high, lower the temperature to the flue gas water spray in reactor; When the sulfur content entering flue gas is too high, carry out further desulfurization to the flue gas spray alkali lye in reactor; First sprayer unit opens or cuts out, spray water or spray alkali lye can be selected according to the temperature of import flue gas, composition, and reactor is operated steadily, and the temperature of control desulfurization reactor and desulfuration efficiency are in the reasonable scope.
Further, reactor shell is also provided with for the second sprayer unit to flue gas injection denitrfying agent in reactor shell between Venturi tube and described first sprayer unit; When being provided with denitrating catalyst in follow-up deduster, denitrfying agent sprays in the flue gas in reactor by the second sprayer unit, denitrfying agent is fully mixed with flue gas, while guarantee smoke desulfurization efficiency, make desulfurization reactor have the effect of pre-denitration simultaneously, improve the effect of follow-up integral denitration dedusting.
Accompanying drawing explanation
Fig. 1 is the structural representation of the flue gas desulfurization reactor of embodiment 1;
Fig. 2 is the structural representation of the flue gas desulfurization reactor of embodiment 2;
Fig. 3 is the structural representation of the flue gas desulfurization reactor of embodiment 3;
Fig. 4 is the structural representation of the flue gas desulfurization reactor of embodiment 4.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is further described.
Embodiment 1
The flue gas desulfurization reactor of the present embodiment, as shown in Figure 1, comprises vertical reactor housing 9, and described reactor shell 9 top is provided with exhanst gas outlet 10, for being connected with the import of downstream deduster; Reactor shell 9 bottom is provided with gas approach 1; Described flue gas desulfurization reactor also comprises the airduct 5 that one end is connected with gas approach 1, and the other end of airduct 5 be used for originating with the upstream flue gas fume emission mouth of (boiler or glass furnace) is connected; Described airduct 5 is provided with the desulfurizing agent feeding device 8 for being added by desulfurizing agent (lime) in flue gas, described airduct 5 being also provided with blender 6 between desulfurizing agent feeding device 8 and the gas approach 1 of reactor shell 9, fully mixing with desulfurizing agent for making the flue gas in airduct;
Be installed with Venturi tube 2 in reactor shell 9, the upper end surrounding the first exhaust gases passes 14, first exhaust gases passes 14 between Venturi tube 2 and reactor shell 9 is closed at place above gas approach 1; Described Venturi tube 2 comprises the contraction section 2-1, trunnion section 2-2 and the diffuser 2-3 that set gradually from top to bottom, and gas approach 1 is positioned in the reactor shell 9 around Venturi tube 2 trunnion section 2-2;
The below of the inherent Venturi tube 2 of reactor shell 9 is provided with dust collection chamber 7, and described dust collection chamber 7 and the first exhaust gases passes 14 are separated by the collection hawk 3 being installed in reactor shell inside; Described collection hawk 3 is provided with the ash discharging hole 4 (ash discharging hole place is provided with valve, and during reactor work, valve is in closed condition) of connection first exhaust gases passes 14 and dust collection chamber 7; The sidewall of described dust collection chamber 7 is provided with the cleaning door 11 for deashing being communicated with deashing chamber 7 and reactor outside.
The flue gas desulfurization reactor of the present embodiment, during use, the flue gas carrying desulfurizing agent (lime) enters reactor shell inside through gas approach, be forced to after running into Venturi tube outer wall flow downward along the first exhaust gases passes, through Venturi tube and reactor shell, collect the passage formed between hawk and enter Venturi tube, successively through the contraction section of Venturi tube, trunnion section and diffuser, enter reactor shell inner upper, enter downstream deduster through exhanst gas outlet and carry out dedusting; Venturi tube carries out disturbance to the flue gas carrying desulfurizing agent (lime), and desulfurizing agent is mixed with flue gas, and the flue gas through Venturi tube evenly flows through inside reactor, and desulfurizing agent is fully contacted with flue gas; Venturi tube changes its course to the flue gas entering reactor, and under the prerequisite of not increasing device, the flow process of flue gas in reactor is longer, longer with the time of contact of desulfurizing agent, and desulphurization reaction is more abundant, and desulfuration efficiency is higher.
Before flue gas enters Venturi tube and when flowing through Venturi tube, flue gas is because changing its course or speed change, and part big dust particle drops on collection hawk, and enter deashing chamber through ash discharging hole, staff can enter deashing chamber through cleaning door and carry out deashing, easy to operate.
Embodiment 2
The flue gas desulfurization reactor of the present embodiment, as shown in Figure 2, difference from Example 1 is: this flue gas desulfurization reactor eliminates collection hawk, and cleaning door 11 is set directly on reactor shell 9 sidewall below Venturi tube 2.Flue gas is because to change its course or the isolated dust of speed change directly drops on the bottom surface in reactor shell, and staff can enter in reactor shell through cleaning door and carry out deashing.The flue gas desulfurization reactor of the present embodiment is applicable to the situation that in flue gas, dust content is not high, and structure is simple, and cost is low.
Embodiment 3
The flue gas desulfurization reactor of the present embodiment, as shown in Figure 3, difference from Example 1 is: reactor shell 9 is provided with between Venturi tube 2 and exhanst gas outlet 10 for the first sprayer unit 12 to injection desulfurization agent in reactor shell 9; Described first sprayer unit 12 is connected with the aerosol can being arranged on reactor outside through the first injection spray pipe, and in the first sprayer unit 12, the quantity of nozzle can be arranged as required, injection direction and flow of flue gas direction perpendicular.The effect of the first sprayer unit is: when the temperature entering flue gas is too high, lowers the temperature to the flue gas water spray in reactor; When the sulfur content entering flue gas is too high, carry out further desulfurization to the flue gas spray alkali lye in reactor.First sprayer unit opens or cuts out, spray water or spray alkali lye can be selected according to the temperature of import flue gas, composition, and reactor is operated steadily, and the temperature of control desulfurization reactor and desulfuration efficiency are in the reasonable scope.
Embodiment 4
The flue gas desulfurization reactor of the present embodiment, as shown in Figure 4, difference from Example 3 is: reactor shell 9 is also provided with between Venturi tube 2 and the first sprayer unit 12 the second sprayer unit 13 for spraying denitrfying agent in reactor shell 9; Described second sprayer unit 13 is connected with the ammonia water tank being arranged on reactor outside through the second injection spray pipe, and in the second sprayer unit 13, the quantity of nozzle can be arranged as required, injection direction identical with flow of flue gas direction (spraying from bottom to top).When being provided with denitrating catalyst in follow-up deduster (integration recorded as patent CN103604133A removes tower), denitrfying agent (ammoniacal liquor) sprays in the flue gas in reactor by the second sprayer unit, denitrfying agent is fully mixed with flue gas, while guarantee smoke desulfurization efficiency, improve the effect of follow-up integral denitration dedusting.
Use in other novel embodiments at this, collection hawk can be set to big opening end funnel structure upwards, and the osculum end of funnel structure is the ash discharging hole of connection first exhaust gases passes and dust collection chamber.The dust that funnel structure conveniently drops on collection hawk is concentrated to ash discharging hole, and deashing is convenient.
In other embodiments of the present utility model, desulfurizing agent can also directly add in reactor shell, as desulfurizing agent feeding device is arranged on gas approach and Venturi tube diffuser 2-3 upper edge between reactor enclosure body sidewall on, desulfurizing agent directly adds in reactor shell through desulfurizing agent feeding device, after mixing with the flue gas entering reactor shell through gas approach, flow downward and enter Venturi tube, namely adopt other forms upper technical scheme added before flue gas enters Venturi tube by desulfurizing agent in flue gas to be all feasible.
Claims (10)
1. a flue gas desulfurization reactor, comprises reactor shell, and described reactor shell top is provided with exhanst gas outlet, it is characterized in that: reactor shell lower sides is provided with gas approach; Be installed with Venturi tube in reactor shell, surround the first exhaust gases passes between Venturi tube and reactor shell, place above gas approach, upper end of the first exhaust gases passes is closed; Described Venturi tube comprises the contraction section, trunnion section and the diffuser that set gradually from top to bottom, and gas approach is positioned at around Venturi tube to be located.
2. flue gas desulfurization reactor according to claim 1, is characterized in that: the below of the inherent Venturi tube of reactor shell is provided with dust collection chamber, and described dust collection chamber and the first exhaust gases passes are separated by the collection hawk being installed in reactor shell inside; Described collection hawk is provided with the ash discharging hole of connection first exhaust gases passes and dust collection chamber.
3. flue gas desulfurization reactor according to claim 2, is characterized in that: the sidewall of described dust collection chamber is provided with the cleaning door for deashing.
4. flue gas desulfurization reactor according to claim 3, is characterized in that: the described hawk that integrates is as big opening end funnel structure upwards, and the osculum end of funnel structure is the ash discharging hole of connection first exhaust gases passes and dust collection chamber.
5. flue gas desulfurization reactor according to claim 1, is characterized in that: reactor shell is provided with between Venturi tube and exhanst gas outlet for the first sprayer unit to injection desulfurization agent in reactor shell.
6. flue gas desulfurization reactor according to claim 5, is characterized in that: injection direction and the flow of flue gas direction of described first sprayer unit are perpendicular.
7. flue gas desulfurization reactor according to claim 5, is characterized in that: reactor shell is also provided with between Venturi tube and described first sprayer unit the second sprayer unit for spraying denitrfying agent in reactor shell.
8. flue gas desulfurization reactor according to claim 7, is characterized in that: the injection direction of described second sprayer unit is identical with flow of flue gas direction.
9. the flue gas desulfurization reactor according to any one of claim 1-8, is characterized in that: also comprise the airduct be connected with gas approach; Described airduct is provided with the desulfurizing agent feeding device for being added by desulfurizing agent in flue gas.
10. flue gas desulfurization reactor according to claim 9, is characterized in that: airduct is provided with between desulfurizing agent feeding device and the gas approach of reactor shell the blender for making flue gas in airduct and desulphurizer mixing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520604805.7U CN205019945U (en) | 2015-08-12 | 2015-08-12 | Flue gas desulfurization reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520604805.7U CN205019945U (en) | 2015-08-12 | 2015-08-12 | Flue gas desulfurization reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944539A (en) * | 2016-06-17 | 2016-09-21 | 中国重型机械研究院股份公司 | Venturi type desulfurizing device adopting spray drying method and desulfurizing method of desulfurizing device |
| CN109966882A (en) * | 2019-04-26 | 2019-07-05 | 山东中玻节能环保发展有限公司 | A kind of turbulent closure scheme formula sintering device flue gas dry desulfurization device |
-
2015
- 2015-08-12 CN CN201520604805.7U patent/CN205019945U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944539A (en) * | 2016-06-17 | 2016-09-21 | 中国重型机械研究院股份公司 | Venturi type desulfurizing device adopting spray drying method and desulfurizing method of desulfurizing device |
| CN105944539B (en) * | 2016-06-17 | 2018-10-09 | 中国重型机械研究院股份公司 | A kind of venturi type spray drying process desulfurizer and its sulfur method |
| CN109966882A (en) * | 2019-04-26 | 2019-07-05 | 山东中玻节能环保发展有限公司 | A kind of turbulent closure scheme formula sintering device flue gas dry desulfurization device |
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Effective date of registration: 20180328 Address after: 450000 Zhengzhou, Zhengzhou City, Henan Henan self trade test district Zhengzhou section (Zheng Dong) Jinshui East Road 49 Greenland No. 1 Building No. 1 Building No. 77, No. 77 Patentee after: Zhengzhou Tianzhi Blue Environmental Protection Technology Co., Ltd. Address before: No. 2, building No. 2, No. 116, hospital No. 116, health Road, Henan, Henan Province, 0601 Patentee before: Lv Zhiyu |
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