CN205073877U - Semidry method flue gas desulphurization device of single venturi structure - Google Patents
Semidry method flue gas desulphurization device of single venturi structure Download PDFInfo
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- CN205073877U CN205073877U CN201520882644.8U CN201520882644U CN205073877U CN 205073877 U CN205073877 U CN 205073877U CN 201520882644 U CN201520882644 U CN 201520882644U CN 205073877 U CN205073877 U CN 205073877U
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Abstract
(B, ) the utility model relates to a semidry method flue gas desulphurization device of single venturi structure, including the desulfurizing tower main part, be used for to the desulfurizing tower main part desulfurizer that provides the desulfurizer throw the material device and be used for to the desulfurizing tower main part fresh water (FW) flue gas quenching and tempering device of humidification carries out, the desulfurizing tower main part include the air inlet section, with the venturi throat section that is connected of air inlet section upper portion, with the diffuser that is connected of venturi throat section upper portion, with the direct current section that is connected of diffuser upper portion, with the air -out section that is connected of direct current section upper portion, with the collection sediment ash bucket that is connected of air inlet section lower part, (b) (b) the SO2 (b) (b) in the flue gas is in the desulfurizing tower main part in accomplish the desulfurated time when being not less than (b) (b) 2 (b) (b) second, the height of direct current section no longer than (b) (b) 10 (b) (b) rice. The utility model provides a be used for draging STREAMING semidry method desulfurization process's desulphurization unit specially, the equipment height is low, the low equipment investment, and desulfurization effect is good. (B, )
Description
Technical field
the utility model relates to a kind of desulfurizer, particularly relates to a kind of semi-dry flue gas desulfurization device of single Venturi tube structure.
Background technology
sintering device flue gas generally carries out draging streaming semi-dry desulphurization after electric cleaner process.Draging streaming semi-dry desulphurization mainly makes absorbent in desulfurizing tower, drag stream, suspension, iterative cycles, with the SO in flue gas
2
abundant haptoreaction realizes a kind of method of desulfurization.Sulfur removal technology divides 6 steps: (1) desulfurizing agent feeds intake; (2) the atomization humidification activation of flue gas; (3) desulfurizing agent fully contacts mixing with containing wet flue gas atomizing particle; (4) sulfur dioxide absorbs; (5) Desulphurization circulation; (6) waste residue is got rid of.Wherein (2), (3), (4) three steps are all carried out in desulfurizing tower.Its chemical reaction process is as follows, when atomized water is atomized in desulfurizing tower through atomizer, and fully contact with flue gas, flue gas cooling also becomes acidic materials after humidifying cooling reaction, desulfurizing agent (calcium hydroxide powder) generates dry-powder product with the reaction of its acidic materials, whole reaction is divided into gas phase, liquid phase and solid phase three kinds of state responses, reactions steps and equation as follows:
SO
3
+Ca(OH)
2
+H
2
O→CaSO
4
·?H
2
O+?H
2
O
SO
2
+Ca(OH)
2
+H
2
O→CaSO
3
·?H
2
O+?H
2
O
SO
2
+?O
2
+Ca(OH)
2
+H
2
O→CaSO
4
·?H
2
O+?H
2
O
2HCl+Ca(OH)
2
+H
2
O→CaCl
2
+2H
2
O
the feature of draging streaming semi-dry desulphurization mainly comprises
1, the time of staying of flue gas in desulfurizing tower is not less than 2 seconds, makes SO
2
can be mixed fully with desulfurizing agent, improve desulfuration efficiency, and the desulphurization reaction of more than 99% all completes in tower.
2, in lower tower, flow velocity makes can not produce wearing and tearing in tower.
3, because desulfurizing agent is dry state, in tower temperature only depend on injection flow rate number, not by SO in import flue gas
2
the restriction of concentration, can control in perfect condition by temperature in tower easily, equipment corrosion when preventing that in tower, temperature is on the low side, and time higher, desulfuration efficiency and sorbent utilization decline.
4, excellent in tower mixing condition, makes the moisture in tower evaporate rapidly, so desulfurizing tower and miscellaneous equipment can not produce bonding and the bed that collapses, and also can not produce corrosion.
5, drag stream absorption dry-method desulfurization device rotatable parts few, whole device availability is high.
6, when the increase of SO 2 from fume content maybe will improve desulfuration efficiency, without the need to increasing any equipment, only having increased desulfurizing agent just, having adapted to the change of sintering device flue gas parameter.
7, sintering machine load adaptivity scope minimum sintering machine load adaptivity scope when adding neat stress recirculation can reach 20%.
8, drag stream and absorb dry desulfurizing process to desulfurizing agent, circulating ash, flue-gas temperature can separately or interlocked control, and flexible operation, adaptability is high.
Summary of the invention
the purpose of this utility model is to provide a kind of flue gas desulfur device, and it is specifically designed to and drags streaming semi-dry desulfurizing process.
for achieving the above object, the technical solution adopted in the utility model is:
a kind of semi-dry flue gas desulfurization device of single Venturi tube structure, comprise desulfurizing tower main body, for providing the desulfurizing agent charging device of desulfurizing agent and the fresh water (FW) flue gas conditioning device for carrying out being humidified to described desulfurizing tower main body to described desulfurizing tower main body, described desulfurizing tower main body comprises wind inlet section, the Venturi throat section be connected with described wind inlet section top, the diffuser be connected with described Venturi throat section top, the direct current section be connected with described diffuser top, the wind outlet section be connected with described direct current section top, the collection slag ash bucket be connected with described wind inlet section bottom, as the SO in flue gas
2
the time completing desulfurization in described desulfurizing tower main body, when being not less than 2 seconds, the height of described direct current section was no more than 10 meters.
preferably, circulating ash material-returning device is connected with in the middle part of described Venturi throat section, skewed slot and the return regulating valve for controlled circulation ash returning charge aperture are carried in the circulating ash returning charge be connected in the middle part of described Venturi throat section that described circulating ash material-returning device comprises inclination, and described desulfurizing agent charging device and circulating ash returning charge carry skewed slot to be connected.
further preferably, described return regulating valve controls its aperture by described desulfurizing tower main body inlet outlet pressure differential value, and mutually chain with described desulfurizing tower main body inlet outlet pressure differential value.
preferably, described fresh water (FW) flue gas conditioning device comprises and is evenly arranged on multiple two-fluid spray gun in described diffuser or high pressure reflow spray gun.
preferably, it is domatic that described diffuser has the cone that top is wide, bottom is narrow, domatic angle>=70 degree with horizontal direction of described cone.
preferably, the breaker for broken set clinker is provided with between described wind inlet section and collection slag ash bucket.
preferably, described wind inlet section, wind outlet section are respectively arranged with for controlling air intake, going out the blower fan of wind speed.
preferably, manhole door is offered respectively in each section of junction of described desulfurizing tower main body.
preferably, described collection slag hopper bottom is provided with the low material level device for monitoring slag ash height in it.
preferably, described desulfurizing tower main body is provided with heat-insulation layer.
because technique scheme is used, the utility model compared with prior art has following advantages:
the utility model provides and is a kind ofly specifically designed to the desulfurizer draging streaming semi-dry desulfurizing process, and device height is low, low equipment investment, and desulfurized effect is good.
Accompanying drawing explanation
accompanying drawing 1 is the structural representation of the present embodiment;
accompanying drawing 2 is A-A cross-sectional schematic in accompanying drawing 1;
accompanying drawing 3 be in accompanying drawing 1 B to schematic diagram.
wherein: 1, desulfurizing tower main body; 10, wind inlet section; 11, Venturi throat section; 12, diffuser; 13, direct current section; 14, wind outlet section; 15, slag ash bucket is collected; 2, breaker; 30, circulating ash returning charge conveying skewed slot; 31, return regulating valve; 4, niter ash silo; 40, roof scrubber; 5, two-fluid spray gun; 6, manhole door; 7, low material level device; 8, star-shaped dust-discharging valve.
Detailed description of the invention
below in conjunction with drawings and Examples, the utility model is further described:
the semi-dry flue gas desulfurization device of a kind of single Venturi tube structure as shown in the figure, comprises desulfurizing tower main body 1, for providing the desulfurizing agent charging device of desulfurizing agent and the fresh water (FW) flue gas conditioning device for carrying out being humidified to desulfurizing tower main body to desulfurizing tower main body 1.Wherein: the collection slag ash bucket 15 that desulfurizing tower main body 1 comprises wind inlet section 10, the Venturi throat section 11 be connected with wind inlet section 10 top, the diffuser 12 be connected with Venturi throat section 11 top, the direct current section 13 be connected with diffuser 12 top, the wind outlet section 14 be connected with direct current section 13 top and is connected with wind inlet section 10 bottom.
in the present embodiment: SO in flue gas
2
do one's utmost to complete in 2s by humidification activation and reactive desulfurizing agent, direct current section highly can control at below 10m for this reason, greatly reduces device height like this and also saves equipment investment.
wind inlet section 10, wind outlet section 14 are respectively arranged with for controlling air intake, going out the blower fan of wind speed.
the breaker 2 for broken set clinker is provided with between wind inlet section 10 and collection slag ash bucket 15.
circulating ash material-returning device is connected with in the middle part of Venturi throat section 11, circulating ash material-returning device comprise inclination be connected in Venturi throat section 11 circulating ash returning charge conveying skewed slot 30 and for controlled circulation ash return regulating valve 31, circulating ash returning charge conveying skewed slot 30 is about 10 degree with the angle of horizontal direction, return regulating valve 31 is by the aperture of desulfurizing tower main body 1 inlet outlet pressure differential value controlled circulation ash return regulating valve 31, and desulfurizing tower main body 1 inlet outlet pressure differential value is definite value, be beneficial to flue gas desulfurization run and do not tie wall and not collapse bed, the wind speed of trunnion Venturi throat section 11 is at more than 50m/s simultaneously, improve the dynamic head of trunnion Venturi throat section 11, also be conducive to flue gas desulfurization not collapse bed.
desulfurizing agent charging device and circulating ash returning charge carry skewed slot 30 to be connected, as shown in the figure, in the present embodiment, desulfurizing agent charging device comprises the niter ash silo 4 with roof scrubber 40, hand operated gate valve is provided with bottom niter ash silo 4, and by frequency conversion star-shaped feeding machine to feed in circulating ash returning charge conveying skewed slot 30, in addition, with electron helical scale bottom frequency conversion star-shaped feeding machine.
fresh water (FW) flue gas conditioning device comprises the multiple two-fluid spray guns 5 be arranged in diffuser 12, or high pressure reflow spray gun, and two-fluid spray gun 5 only arranges 3-6, and is uniformly distributed.Desulfurizer controls the temperature of wind outlet section 14 by the water yield of fresh water (FW) flue gas conditioning device, and the value stable in order to desulfurizing tower outlet temperature after flue gas humidification activation ensures desulfuration efficiency.
diffuser 12 has the cone domatic 120 that top is wide, bottom is narrow, and cone domatic 120 and angle>=70 degree of horizontal direction are beneficial to dust and fall down and do not tie wall.
each joining section and the junction, each device interface place of desulfurizing tower main body 1 offer manhole door 6 respectively, in order to clearing up inside and equipment inspection and maintenance.
collection slag ash bucket 15, with the star-shaped dust-discharging valve 8 often opened, collects the low material level device 7 be provided with bottom slag ash bucket 15 for monitoring slag ash height in it simultaneously, in order to after the bed that collapses first time notice artificial treatment, in case do not know star-shaped ash unloading valve 8 blocking.
desulfurizing tower main body 1 is provided with heat-insulation layer, and insulation thickness, by technological requirement setting, prevents desulfurizing tower dewing corrosion and dust knot wall.
above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (10)
1. the semi-dry flue gas desulfurization device of a single Venturi tube structure, comprise desulfurizing tower main body, for providing the desulfurizing agent charging device of desulfurizing agent and the fresh water (FW) flue gas conditioning device for carrying out being humidified to described desulfurizing tower main body to described desulfurizing tower main body, described desulfurizing tower main body comprises wind inlet section, the Venturi throat section be connected with described wind inlet section top, the diffuser be connected with described Venturi throat section top, the direct current section be connected with described diffuser top, the wind outlet section be connected with described direct current section top, the collection slag ash bucket be connected with described wind inlet section bottom, it is characterized in that: as the SO in flue gas
2the time completing desulfurization in described desulfurizing tower main body, when being not less than 2 seconds, the height of described direct current section was no more than 10 meters.
2. the semi-dry flue gas desulfurization device of a kind of single Venturi tube structure according to claim 1, it is characterized in that: in the middle part of described Venturi throat section, be connected with circulating ash material-returning device, skewed slot and the return regulating valve for controlled circulation ash returning charge aperture are carried in the circulating ash returning charge be connected in the middle part of described Venturi throat section that described circulating ash material-returning device comprises inclination, and described desulfurizing agent charging device and circulating ash returning charge carry skewed slot to be connected.
3. the semi-dry flue gas desulfurization device of a kind of single Venturi tube structure according to claim 2, it is characterized in that: described return regulating valve controls its aperture by described desulfurizing tower main body inlet outlet pressure differential value, and mutually chain with described desulfurizing tower main body inlet outlet pressure differential value.
4. the semi-dry flue gas desulfurization device of a kind of single Venturi tube structure according to claim 1, is characterized in that: described fresh water (FW) flue gas conditioning device comprises and is evenly arranged on multiple two-fluid spray gun in described diffuser or high pressure reflow spray gun.
5. the semi-dry flue gas desulfurization device of a kind of single Venturi tube structure according to claim 1, is characterized in that: it is domatic that described diffuser has the cone that top is wide, bottom is narrow, domatic angle >=70 degree with horizontal direction of described cone.
6. the semi-dry flue gas desulfurization device of a kind of single Venturi tube structure according to claim 1, is characterized in that: be provided with the breaker for broken set clinker between described wind inlet section and collection slag ash bucket.
7. the semi-dry flue gas desulfurization device of a kind of single Venturi tube structure according to claim 1, is characterized in that: described wind inlet section, wind outlet section are respectively arranged with for controlling air intake, going out the blower fan of wind speed.
8. the semi-dry flue gas desulfurization device of a kind of single Venturi tube structure according to claim 1, is characterized in that: manhole door is offered respectively in each section of junction of described desulfurizing tower main body.
9. the semi-dry flue gas desulfurization device of a kind of single Venturi tube structure according to claim 1, is characterized in that: described collection slag hopper bottom is provided with the low material level device for monitoring slag ash height in it.
10. the semi-dry flue gas desulfurization device of a kind of single Venturi tube structure according to claim 1, is characterized in that: described desulfurizing tower main body is provided with heat-insulation layer.
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|---|---|---|---|
| CN201520882644.8U CN205073877U (en) | 2015-11-06 | 2015-11-06 | Semidry method flue gas desulphurization device of single venturi structure |
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|---|---|---|---|
| CN201520882644.8U CN205073877U (en) | 2015-11-06 | 2015-11-06 | Semidry method flue gas desulphurization device of single venturi structure |
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Cited By (5)
| 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 |
| CN107551798A (en) * | 2017-09-29 | 2018-01-09 | 江苏亿金环保科技有限公司 | A kind of calcium hydroxide charging gear for coal-fired flue-gas semi-dry desulphurization |
| CN108404663A (en) * | 2018-06-01 | 2018-08-17 | 福建龙净脱硫脱硝工程有限公司 | A kind of integrated form smoke eliminator |
| CN109847571A (en) * | 2019-04-02 | 2019-06-07 | 江苏优拿大环保科技有限公司 | A kind of new semi-dry desulfurizing process |
| CN110787603A (en) * | 2019-12-02 | 2020-02-14 | 哈尔滨理工大学 | Efficient boiler flue gas desulfurization equipment |
-
2015
- 2015-11-06 CN CN201520882644.8U patent/CN205073877U/en active Active
Cited By (7)
| 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 |
| CN107551798A (en) * | 2017-09-29 | 2018-01-09 | 江苏亿金环保科技有限公司 | A kind of calcium hydroxide charging gear for coal-fired flue-gas semi-dry desulphurization |
| CN107551798B (en) * | 2017-09-29 | 2023-11-28 | 江苏亿金环保科技有限公司 | Slaked lime feeding device for semi-dry desulfurization of coal-fired flue gas |
| CN108404663A (en) * | 2018-06-01 | 2018-08-17 | 福建龙净脱硫脱硝工程有限公司 | A kind of integrated form smoke eliminator |
| CN109847571A (en) * | 2019-04-02 | 2019-06-07 | 江苏优拿大环保科技有限公司 | A kind of new semi-dry desulfurizing process |
| CN110787603A (en) * | 2019-12-02 | 2020-02-14 | 哈尔滨理工大学 | Efficient boiler flue gas desulfurization equipment |
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Effective date of registration: 20160729 Address after: Split eight communities in Wujiang District of Suzhou City, Jiangsu province 215000 Patentee after: Environmental Protection Technology Co., Ltd. Address before: Song Ling Zhen Wujiang District of Suzhou City, Jiangsu province 215222 split eight community traffic road No. 8 Patentee before: Kelin Environmental Protection Equipment, Inc. |