CN203955030U - A kind of lime pulping system for sintering flue gas desulfurization - Google Patents
A kind of lime pulping system for sintering flue gas desulfurization Download PDFInfo
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- CN203955030U CN203955030U CN201420414930.7U CN201420414930U CN203955030U CN 203955030 U CN203955030 U CN 203955030U CN 201420414930 U CN201420414930 U CN 201420414930U CN 203955030 U CN203955030 U CN 203955030U
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- desulfurizing tower
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Abstract
A kind of lime pulping system for sintering flue gas desulfurization that the utility model relates to, mainly comprise lime white preparation facilities, conveying device, settler, lime white preparation facilities mainly comprises conveyer belt, disintegrating machine, motor, slurrying pond, conveyer belt is located at disintegrating machine top, disintegrating machine below is also provided with conveyer belt, below conveyer belt connects slurrying pond, and inside, slurrying pond is provided with pulper, conveying device mainly comprises desulfurizing tower, suction pump, pipeline, desulfurizing tower is fixed on eminence by base support, by pipeline, be connected in pulper, pipeline is provided with suction pump, before suction pump, be provided with screen pack, suction pump is inputted lime white from desulfurizing tower upper end, desulfurizing tower is provided with pipeline and connects chimney, settler mainly comprises one-level sedimentation basin, second-level settling pond, suction pump, one-level sedimentation basin connects desulfurizing tower bottom by pipeline, second-level settling pond connects one-level sedimentation basin by pipeline, can realize the efficient of lime desulfurization slurrying, simply, environmental protection, stable processing.
Description
Technical field
The utility model relates to environmental technology field, is specifically related to a kind of lime pulping system for sintering flue gas desulfurization.
Background technology
In China's smelting iron and steel operation, sintering process is the primary pollution source of atmosphere, the waste gas of discharging shared ratio in whole steel plant is: flue dust 17%, sulfur dioxide 46%, nitrogen oxide 20%, the improvement of sinter fume becomes the emphasis that steel and iron industry sulfur dioxide reduces discharging.In recent years national environmental protection is to sintering device flue gas emission request also increasingly stringent: issue on June 27th, 2012, the < < steel sintering that on October 1st, 2012 implements, pelletizing industrial air pollution thing discharge standard > > (GB 28662-2012) has stipulated steel sintering and pelletizing production enterprise Air Pollutant Emission limit value, monitoring and monitoring requirement, no longer carry out the relevant regulations in < < discharge standard of air pollutants > > (GB 16297-1996) and < < industrial furnace atmosphere pollutants emission standards > > (GB 9078-1996), the existing steel enterprise sintering machine of GB 28662-2012 standard-required SO2 discharge standard is 600mg/m
3, newly-built steel enterprise sintering machine discharge standard is 200mg/m
3, standard is very strict, is that existing enterprise or newly-built enterprise all should build and improve flue gas desulfur device, just can reach SO2 discharge national standard, and it is huge that steel and iron industry reduces discharging pressure, and acceleration sintering flue gas desulfurization is significant, imperative.
The conventional sulfur method of domestic contrast mainly contains limestone-gypsum method at present, ammonia process, recirculating fluidized bed method, magnesium oxide method etc., wherein limestone-gypsum method is a kind of typical Wet Flue Gas Desulfurization Technique, at 20 century 70s, be just successfully applied to the flue gas desulfurization in power plant, become the wider flue gas desulfurization technique of a kind of application, its desulfuration efficiency is high, cheap and the accessory substance of desulfurizing agent also can utilize, be particularly useful for the gas cleaning of large capacity unit, but this technology investment and operating cost are higher, system complex, floor space is large, and utilize refined lime powder to be easy to corrosion, wearing and tearing are so that blocking pipe, thereby reduce its reliability of operation.
Summary of the invention
For the existing problem of flue gas desulfurization in prior art, a kind of lime pulping system for sintering flue gas desulfurization that the utility model provides, can realize efficient, simple, the environmental protection of lime desulfurization slurrying, stable processing.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A lime pulping system for sintering flue gas desulfurization, mainly comprises lime white preparation facilities, conveying device, settler; Described lime white preparation facilities mainly comprises conveyer belt, disintegrating machine, motor, slurrying pond, described conveyer belt is located at disintegrating machine top, by conveyer belt, quick lime is sent into disintegrating machine, after fragmentation, disintegrating machine below is also provided with conveyer belt, and the lime of pulverizing through disintegrating machine is transported by below conveyer belt, and below conveyer belt connects slurrying pond, inside, described slurrying pond is provided with pulper, and pulverized limestone enters pulper and carries out slurrying processing.
Described conveying device mainly comprises desulfurizing tower, suction pump, pipeline, described desulfurizing tower is fixed on eminence by base support, by pipeline, be connected in pulper, pipeline is provided with suction pump, before described suction pump, be provided with screen pack, suction pump is by lime white from the input of desulfurizing tower upper end, and desulfurizing tower is provided with pipeline and connects chimney, and flue gas is discharged by the chimney that is located at desulfurizing tower rear portion after treatment.
Described settler mainly comprises one-level sedimentation basin, second-level settling pond, suction pump, and described one-level sedimentation basin connects desulfurizing tower bottom by pipeline, and second-level settling pond connects one-level sedimentation basin by pipeline, Ca(OH)
2the CaSO complete with reaction
3mixed liquor is taken away along pipeline by suction pump after one-level sedimentation basin one-level precipitation, enters second-level settling pond and carries out two-stage precipitation, last CaSO
3be transported into storeroom, the unreacted Ca(OH in second-level settling pond)
2can by pipeline, draw back in desulfurizing tower and reuse by suction pump.
Preferably, described pulper mainly comprises screen pack, motor, main shaft, swingle, described motor is connected on main shaft, on main shaft, be connected with swingle, described screen pack is provided with hanger in upper end, screen pack is welded and fixed by bracing frame and main shaft, sidewall and bottom that in described pulper, screen pack surrounds are provided with padlock, when after pulper work a period of time, lime mud is more, can from slurrying pond, by hanger, hang out outside pond, after opening padlock, lime mud is separated with pulper bottom, can clear up screen pack inside simultaneously.
Preferably, described screen pack adopts stainless steel, and order number is at 30-150 order.
The beneficial effects of the utility model show: system desulfurization degree is up to more than 95%, meet environmental requirement, equipment requirement is simple to operation, be not easy to occur mechanical breakdown, so can be because mechanical disorder affects security of system work, adopt quick lime to make desulfurizing agent cheap, widely distributed, each iron and steel enterprise is all equipped with quick lime production line, without outsourcing again.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of lime pulping system for sintering flue gas desulfurization of the utility model;
Fig. 2 is the pulper structural representation of a kind of lime pulping system for sintering flue gas desulfurization of the utility model;
Fig. 3 is that the pulper of a kind of lime pulping system for sintering flue gas desulfurization of the utility model splits structural representation;
1-conveyer belt, 2-disintegrating machine, 3-motor, 4-pulper, 5-desulfurizing tower, 6-suction pump, 7-chimney, 8-one-level sedimentation basin, 9-second-level settling pond, 10-pipeline, 11-hanger, 12-screen pack, 13-main shaft, 14-slurrying pond, 15-swingle in figure, 16-screen pack, 17-padlock, 18-bracing frame.
The specific embodiment
For the ease of it will be appreciated by those skilled in the art that below in conjunction with accompanying drawing, the utility model is further described.
A kind of lime pulping system for sintering flue gas desulfurization as Figure 1-3, mainly comprise lime white preparation facilities, conveying device, settler, lime white preparation facilities mainly comprises conveyer belt 1, disintegrating machine 2, motor 3, slurrying pond 14, described conveyer belt 1 is located at disintegrating machine 2 tops, by conveyer belt 1, quick lime is sent into disintegrating machine 2, disintegrating machine 2 belows are also provided with conveyer belt 1, the lime of pulverizing through disintegrating machine 2 is transported by below conveyer belt 1, below conveyer belt 1 connects slurrying pond 14, 14 inside, described slurrying pond are provided with pulper 4, described conveying device mainly comprises desulfurizing tower 5, suction pump 6, pipeline 10, described desulfurizing tower 5 is fixed on eminence by base support, by pipeline 10, be connected in pulper 4, pipeline 10 is provided with suction pump 6, before described suction pump 6, be provided with screen pack 16, suction pump 6 is inputted lime white from desulfurizing tower 5 upper ends, desulfurizing tower 5 is provided with pipeline 10 and connects chimney 7, flue gas is discharged by the chimney 7 that is located at desulfurizing tower 5 rear portions after treatment, described settler mainly comprises one-level sedimentation basin 8, second-level settling pond 9, suction pump 6, described one-level sedimentation basin 8 connects desulfurizing tower 5 bottoms by pipeline 10, second-level settling pond 9 connects one-level sedimentation basin 8 by pipeline 10, Ca(OH)
2the CaSO complete with reaction
3mixed liquor is taken away along pipeline 10 by suction pump 6 after one-level sedimentation basin 8 one-level precipitations, enters second-level settling pond 9 and carries out two-stage precipitation, last CaSO
3be transported into storeroom, the unreacted Ca(OH in second-level settling pond 9)
2can by pipeline 10, draw back in desulfurizing tower 5 and reuse by suction pump 6, described pulper 4 mainly comprises screen pack 12, motor 3, main shaft 13, swingle 15, described motor 3 is connected on main shaft 13, on main shaft 13, be connected with swingle 15, described screen pack 12 is provided with hanger 11 in upper end, screen pack 12 is welded and fixed by bracing frame 18 and main shaft 13, and described pulper 4 sidewalls and bottom are provided with padlock 17.
Workflow: carry quick lime to enter disintegrating machine by conveyer belt, after pulverizing, by below conveyer belt, be transported in pulper internal structure, pulper drives the swingle on main shaft by motor, make quick lime process slurrying, after completing, slurrying flows out pulper internal structure by screen pack, by flue gas being carried out to desulfurization in the suction pump suction desulfurizing tower on pipeline, the flue gas of processing enters chimney by pipeline and discharges, Ca(OH)
2the CaSO complete with reaction
3mixed liquor is taken away along pipeline by suction pump after one-level sedimentation basin one-level precipitation, enters second-level settling pond and carries out two-stage precipitation, last CaSO
3be transported into storeroom, the unreacted Ca(OH in second-level settling pond)
2can by pipeline, draw back in desulfurizing tower and reuse by suction pump.
Above content is only to structure example of the present utility model and explanation; affiliated those skilled in the art make various modifications to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the structure of utility model or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.
Claims (4)
1. for a lime pulping system for sintering flue gas desulfurization, mainly comprise lime white preparation facilities, conveying device, settler; It is characterized in that described lime white preparation facilities mainly comprises conveyer belt, disintegrating machine, motor, slurrying pond, described conveyer belt is located at disintegrating machine top, by conveyer belt, quick lime is sent into disintegrating machine, disintegrating machine below is also provided with conveyer belt, below conveyer belt connects slurrying pond, and inside, described slurrying pond is provided with pulper;
Described conveying device mainly comprises desulfurizing tower, suction pump, pipeline, described desulfurizing tower is fixed on eminence by base support, by pipeline, be connected in pulper, pipeline is provided with suction pump, before described suction pump, be provided with screen pack, suction pump is by lime white from the input of desulfurizing tower upper end, and desulfurizing tower is provided with pipeline and connects chimney;
Described settler mainly comprises one-level sedimentation basin, second-level settling pond, suction pump, and described one-level sedimentation basin connects desulfurizing tower bottom by pipeline, and second-level settling pond connects one-level sedimentation basin by pipeline.
2. a kind of lime pulping system for sintering flue gas desulfurization according to claim 1, it is characterized in that described pulper mainly comprises screen pack, motor, main shaft, swingle, described motor is connected on main shaft, on main shaft, be connected with swingle, described screen pack is provided with hanger in upper end, and screen pack is welded and fixed by bracing frame and main shaft.
3. a kind of lime pulping system for sintering flue gas desulfurization according to claim 2, is characterized in that sidewall and bottom that in described pulper, screen pack surrounds are provided with padlock.
4. a kind of lime pulping system for sintering flue gas desulfurization according to claim 1, is characterized in that described screen pack adopts stainless steel, and order number is at 30-150 order.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420414930.7U CN203955030U (en) | 2014-07-27 | 2014-07-27 | A kind of lime pulping system for sintering flue gas desulfurization |
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| CN201420414930.7U CN203955030U (en) | 2014-07-27 | 2014-07-27 | A kind of lime pulping system for sintering flue gas desulfurization |
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| CN203955030U true CN203955030U (en) | 2014-11-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106110866A (en) * | 2016-08-08 | 2016-11-16 | 四川德胜集团钒钛有限公司 | A kind of flue gas desulphurization system |
-
2014
- 2014-07-27 CN CN201420414930.7U patent/CN203955030U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106110866A (en) * | 2016-08-08 | 2016-11-16 | 四川德胜集团钒钛有限公司 | A kind of flue gas desulphurization system |
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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 |
Granted publication date: 20141126 Termination date: 20150727 |
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| EXPY | Termination of patent right or utility model |