CN205341041U - Based on smoke and dust desorption system in wet process deliming technique coal fired power plant flue gas - Google Patents
Based on smoke and dust desorption system in wet process deliming technique coal fired power plant flue gas Download PDFInfo
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Abstract
The utility model discloses a based on smoke and dust desorption system in wet process deliming technique coal fired power plant flue gas, including the stokehold wet split system that connects in order for elect the raw coal branch as clean coal and gangue, coal fired boiler is used for burning the clean coal produces the flue gas, flue gas electrostatic precipitator device, it is right to be used for the flue gas that coal fired boiler produced removes dust, the desulfurizing tower, desulfurizing tower exhanst gas outlet department sets up the defroster for to behind the electrostatic precipitator in the flue gas dust further desorption carries out, wet -type electricity dust collector, it is right to be used for desulfurizing tower export flue gas further removes dust and is satisfied the wet export flue gas that removes of dust minimum discharge. Through stokehold wet process deliming technique, get rid of the gangue, reduce ash content in the coal of going into the stove burning, carry the dust through in electrostatic precipitator and the electric dust collector desorption flue gas of wet -type, reach coal fired power plant 5mgNm3's the ultralow emission standard of smoke and dust, can discharge to the atmosphere in.
Description
Technical field
This utility model belongs to coal-fired plant flue gas deliming technical field, is specifically related to a kind of based on flue dust elimination system in wet method deliming technology coal-fired plant flue gas.
Background technology
At present, National Development and Reform Committee, national environmental protection portion and National Energy Board put into effect " coal electricity energy-saving and emission-reduction upgrading and transformation action plan (2014-2020) ", encouraging west area new-built unit pollutant emission close to or up gas turbine group emission limit, namely flue dust, nitrogen oxides and soot emissions limit value are 35mg/Nm3、50mg/Nm3、5mg/Nm3.But Southwestern China Areas For Coal ature of coal has the feature of high ash, high-sulfur, it can be used as the flue dust of coal-burning power plant's as-fired coal kind burning generation and dust concentration higher than low-sulfur, low culm, if thus adopt conventional Pollutant Treatment technology, sulfur dioxide and dust emission concentration are difficult to reach 35mg/Nm3、5mg/Nm3Minimum discharge standard.
The present atmospheric pollution " haze " of China derives from many-side, and wherein the contribution of coal fired power generation or heat supply be can not ignore.But the energy resources of China are based on coal, and the quality of coal differs.Therefore, carry out the minimum discharge technology for Coal rank at present, especially control the dust emission in coal-fired flue-gas, become the crucial part administering haze.For Southwestern China area dirty coal kind feature, the technology of exploitation coal-burning power plant dust emission control and method, for realizing the pollutant minimum discharge of southwest coal-burning power plant, have important practical significance.
Chinese patent literature CN103657320A discloses a kind of flue-gas dust-removing and desulfurization system, including the Flue Gas Pretreatment Device sequentially connected by flue and flue gas desulfurization device, described Flue Gas Pretreatment Device is mainly by smoke-intake pipe road, controller, it is arranged on the primary dust filter screen in described smoke-intake pipe road, smoke pipeline, it is connected to the electrostatic precipitation case between described smoke-intake pipe road and smoke pipeline, digital altimeter, asepwirator pump and rotor type gas flowmeter are constituted, described primary dust screen cover is located at the porch in described smoke-intake pipe road, described asepwirator pump is arranged on described smoke pipeline exit, described digital altimeter and rotor type gas flowmeter are installed in described smoke pipeline and signal exports described controller；Described cigarette device desulfurizer is mainly made up of the flue gas oxidizing tower being sequentially connected by flue, fume desulfurizing tower and flue gas drying tower.But, this flue-gas dust-removing and desulfurization system can not solve the smoke dust discharge concentration height that Southwestern China area coal-burning power plant burning high sulfur coal is brought, the problem being difficult to reach minimum discharge standard.
Utility model content
The purpose of this utility model is in that to solve the smoke dust discharge concentration height that Southwestern China area coal-burning power plant burning dirty coal kind is brought, the problem being difficult to reach minimum discharge standard, and then provides a kind of based on flue dust elimination system in the coal-fired plant flue gas of wet method deliming technology.
In order to solve above-mentioned technical problem, the technical solution of the utility model is as follows:
Provided by the utility model based on flue dust elimination system in wet method deliming technology coal-fired plant flue gas, including the stokehold wet split system being sequentially connected with, in order to being cleaned coal and gangue by raw coal separation；Coal-burning boiler, in order to the described cleaned coal that burns, produces flue gas；Flue gas electrostatic precipitator, carries out dedusting in order to the flue gas that described coal-burning boiler is produced；Desulfurizing tower, described desulfurizing tower smoke outlet arranges demister, in order to the flue gas after described electrostatic precipitation is carried out dust elimination；Wet type electric dust-removing device, in order to be met the wet except exiting flue gas of minimum discharge requirement to the described further dedusting of desulfurizing tower exiting flue gas；
The cleaned coal outlet of described stokehold wet split system is connected with the cleaned coal entrance of described coal-burning boiler；The back-end ductwork of described coal-burning boiler is connected with the smoke inlet of described flue gas electrostatic precipitator；The exhanst gas outlet of described flue gas electrostatic precipitator is connected with the smoke inlet of described desulfurizing tower；The exhanst gas outlet of described desulfurizing tower is connected with the smoke inlet of described Wet type electric dust-removing device.
Above-mentioned based in flue dust elimination system in wet method deliming technology coal-fired plant flue gas, described flue gas electrostatic precipitator arranges high-voltage DC power supply, in order to make the dust being suspended in flue gas charged；Inside described flue gas electrostatic precipitator, dust collector pole is set, under electric field action, is enriched in Charged thereon for collecting；The bottom of described flue gas electrostatic precipitator is provided with ash bucket, in order to be collected by rapping mode from the Charged shaken off dust collector pole；
Being additionally provided with air inlet smoke box in described flue gas electrostatic precipitator and give vent to anger smoke box, described air inlet smoke box is connected with described coal-burning boiler back-end ductwork, described in smoke box of giving vent to anger connect with described desulfurizing tower smoke inlet；
Described Wet type electric dust-removing device arranges high-voltage DC power supply, in order to make the dust being suspended in flue gas charged；Inside described Wet type electric dust-removing device, dust collector pole is set, under electric field action, is enriched in Charged thereon for collecting；The bottom of described Wet type electric dust-removing device is provided with dust collection；Between upper end and the described dust collector pole of described Wet type electric dust-removing device, spray equipment is set, makes described dust collector pole surface form water membrane in order to shower water, finally make dust flow together with water in described dust collection；Described Wet type electric dust-removing device smoke inlet is connected with described desulfurizing tower exhanst gas outlet.
Above-mentioned based in flue dust elimination system in wet method deliming technology coal-fired plant flue gas, including chimney, in order to discharge to air after described plume rise up to standard.
Described chimney entrance is connected with the exhanst gas outlet of described Wet type electric dust-removing device.
Described desulfurizing tower arranges some spraying layers, in order to spray lime stone slurry；Described desulfurizing tower smoke outlet arranges multi-level tubular and/or ridge type demister, in order to further dedusting.
Further, described desulfurizing tower concretely Gypsum Wet double tower double circulation desulphurization tower.
Further, described Gypsum Wet double tower double circulation desulphurization tower is be linked in sequence the one-level prewashing column and two grades of main absorption towers that arrange；
Described one-level prewashing column middle and lower part arranges smoke inlet, and inside arranges some spraying layers, and top arranges exhanst gas outlet；
Middle and lower part, described two grades of main absorption towers arranges smoke inlet, and described one-level prewashing column exhanst gas outlet connects with described two grades of main adsorption tower smoke entrances；Arranging some spraying layers inside described two grades of main absorption towers, top arranges exhanst gas outlet, arranges multi-level tubular and/or ridge type demister at described smoke outlet；
It is provided with limestone slurry liquid pool bottom described one-level prewashing column and described two grades of main absorption towers, fresh lime stone slurry passes into described two grades of main absorption towers, and some spraying layers that the serosity in limestone slurry liquid pool is pumped in described two grades of main absorption towers by slurry circulating pump are set spray sulfur dioxide absorption, serosity in limestone slurry liquid pool bottom described two grades of main absorption towers is pumped in described one-level pre-absorption tower by pump simultaneously, and is pumped in described one-level prewashing column some spraying layers by the slurry circulating pump of described one-level prewashing column and sprays.
Above-mentioned based in flue dust elimination system in wet method deliming technology coal-fired plant flue gas, described stokehold wet split system includes: raw coal separation device, it is provided with screening plant before the entrance of described raw coal separation device, the screening of described screening plant obtains the feed coal that granularity is not more than 50mm, and granularity is not more than the feed coal of 50mm by described raw coal separation device to be carried out sorting and obtain cleaned coal, middle coal and gangue.
Further, described stokehold wet split system also includes: export, with the gangue in described raw coal separation device, the gangue Integrated Processing Unit arranged that is connected, for processing the sulfur and/or metal reclaimed in described gangue；Coal gangue crusher, coal gangues automation selection device and iron concentrate that described gangue Integrated Processing Unit includes being sequentially connected with process system, after described gangue is crushed to granularity of dissociating by described coal gangue crusher, entrance coal gangues automation selection device carries out sorting and obtains mine tailing, chats and iron concentrate, and described iron concentrate enters iron concentrate and processes system process recovery sulfur and/or metal.
Technical solutions of the utility model, have the advantage that
1) the elimination system of flue dust in the coal-fired plant flue gas that this utility model provides, by stokehold wet method deliming technology, difference according to spoil and coal proportion, it is gangue and cleaned coal two class by raw coal separation, wherein cleaned coal burns as as-fired coal, spoil is then recovered further utilization, is not used to boiler combustion.Owing in spoil, ash rate example is significantly higher than cleaned coal, adopting stokehold wet split technique can be lowered into the ash content of coal content of boiler combustion, its deliming rate can reach more than 35%.
2) the elimination system of flue dust in the coal-fired plant flue gas that this utility model provides, by adopting electrostatic precipitator, its high voltage electric field is utilized to make flue gas ionize, dust in air-flow charged under electric field action with flow separation, and tend to collecting electrode electric discharge and deposit, and remove the dust on dust collection plate by mechanical vibrator, thus reaching dedusting purpose, described electrostatic precipitator efficiency of dust collection reaches more than 99.9%.
3) the elimination system of flue dust in the coal-fired plant flue gas that this utility model provides, by adopting Wet type electric dust-removing device, its high-voltage corona is utilized to make dust charged, Charged is issued to dust collecting electrode in electric field force effect, and adopt shower water to rinse pole plate, being washed into by the dust caught in dust collection and get rid of, described wet-esp has the efficiency of dust collection of more than 70%.
4) the elimination system of flue dust in the coal-fired plant flue gas that this utility model provides, by adopting desulfurizing tower, described desulfurizing tower smoke outlet arranges multi-level tubular and/or ridge type demister, and flue gas by further dedusting, there are about the dust of 50% and is removed on desulfurizing tower top after demister.
5) the elimination system of flue dust in the coal-fired plant flue gas that this utility model provides, Neng Shi coal-burning power plant dust emission concentration reaches 5mg/Nm3Minimum discharge standard, be directly discharged to air by being entered after chimney lifting by the flue gas meeting dust minimum discharge requirement.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is based on the schematic diagram of flue dust elimination system in wet method deliming technology coal-fired plant flue gas.
Description of reference numerals:
1-stokehold wet split system；2-burning boiler；3-flue；4-flue gas electrostatic precipitator；5-desulfurizing tower；6-Wet type electric dust-removing device；7-chimney.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
Described in the present embodiment based on flue dust elimination system in wet method deliming technology coal-fired plant flue gas, including the stokehold wet split system 1 being sequentially connected with, in order to being cleaned coal and gangue by raw coal separation；Coal-burning boiler 2, in order to the described cleaned coal that burns, produces flue gas；Flue gas electrostatic precipitator 4, carries out dedusting in order to the flue gas that described coal-burning boiler is produced；Desulfurizing tower 5, described desulfurizing tower 5 smoke outlet arranges demister, in order to the flue gas after described electrostatic precipitation is carried out dust elimination；Wet type electric dust-removing device 6, in order to be met the wet except exiting flue gas of minimum discharge requirement to the described further dedusting of desulfurizing tower exiting flue gas；Chimney 7, in order to by described wet except discharging to air after exiting flue gas lifting；
The cleaned coal outlet of described stokehold wet split system 1 is connected with the cleaned coal entrance of described coal-burning boiler 2；The back-end ductwork 3 of described coal-burning boiler 2 is connected with the smoke inlet of described flue gas electrostatic precipitator 4；The exhanst gas outlet of described flue gas electrostatic precipitator 4 is connected with the smoke inlet of described desulfurizing tower 5；The exhanst gas outlet of described desulfurizing tower 5 is connected with the smoke inlet of described wet-esp 6；The exhanst gas outlet of described Wet type electric dust-removing device 6 is connected with described chimney 7.
The present embodiment obtains cleaned coal and gangue by the high ash raw coal burnt Southwestern China area coal-burning power plant after stokehold separation system 2 (stokehold wet split system) sorts, and before and after sorting, in raw coal, the content of each component is as shown in table 1 below:
The content of each component in raw coal before and after table 1, sorting
As preferred embodiment, described flue gas electrostatic precipitator arranges high-voltage DC power supply, in order to make the dust being suspended in flue gas charged；Inside described flue gas electrostatic precipitator, dust collector pole is set, under electric field action, is enriched in Charged thereon for collecting；The bottom of described flue gas electrostatic precipitator is provided with ash bucket, in order to be collected by rapping mode from the Charged shaken off dust collector pole；Being additionally provided with air inlet smoke box in described flue gas electrostatic precipitator and give vent to anger smoke box, described air inlet smoke box is connected with described coal-burning boiler back-end ductwork, described in smoke box of giving vent to anger connect with described desulfurizing tower smoke inlet；
As preferred embodiment, described Wet type electric dust-removing device arranges high-voltage DC power supply, in order to make the dust being suspended in flue gas charged；Inside described Wet type electric dust-removing device, dust collector pole is set, under electric field action, is enriched in Charged thereon for collecting；The bottom of described Wet type electric dust-removing device is provided with dust collection；Between upper end and the described dust collector pole of described Wet type electric dust-removing device, spray equipment is set, makes described dust collector pole surface form water membrane in order to shower water, finally make dust flow together with water in described dust collection；Described Wet type electric dust-removing device smoke inlet is connected with described desulfurizing tower exhanst gas outlet.
As preferred embodiment, described desulfurizing tower arranges some spraying layers, in order to spray desulfurizing agent；Described desulfurizing tower smoke outlet arranges multi-level tubular and/or ridge type demister, in order to further dedusting.By adopting, multi-level tubular and/or ridge type demister are set at described desulfurizing tower smoke outlet, while scrubbing CO_2, dust in flue gas is played certain removal effect, and flue gas by further dedusting, there are about the dust of 50% and is removed after demister.
As further preferred embodiment, described desulfurizing tower can be Gypsum Wet double tower double circulation desulphurization tower.
As further preferred embodiment, described Gypsum Wet double tower double circulation desulphurization tower is be linked in sequence the one-level prewashing column and two grades of main absorption towers that arrange；
Described one-level prewashing column middle and lower part arranges smoke inlet, and inside arranges some spraying layers, and top arranges exhanst gas outlet；
Middle and lower part, described two grades of main absorption towers arranges smoke inlet, and described one-level prewashing column exhanst gas outlet connects with described two grades of main adsorption tower smoke entrances；Arranging some spraying layers inside described two grades of main absorption towers, top arranges exhanst gas outlet, arranges multi-level tubular and/or ridge type demister at described smoke outlet；
It is provided with limestone slurry liquid pool bottom described one-level prewashing column and described two grades of main absorption towers, fresh lime stone slurry passes into described two grades of main absorption towers, and some spraying layers that the serosity in limestone slurry liquid pool is pumped in described two grades of main absorption towers by slurry circulating pump are set spray sulfur dioxide absorption, serosity in limestone slurry liquid pool bottom described two grades of main absorption towers is pumped in described one-level pre-absorption tower by pump simultaneously, and is pumped in described one-level prewashing column some spraying layers by the slurry circulating pump of described one-level prewashing column and sprays.
As preferred embodiment, described stokehold wet split system includes, raw coal separation device, it is provided with screening plant before the entrance of described raw coal separation device, the screening of described screening plant obtains the feed coal that granularity is not more than 50mm, and granularity is not more than the feed coal of 50mm by described raw coal separation device to be carried out sorting and obtain cleaned coal, middle coal and gangue.Experiment confirms: the described stokehold wet split system in the present embodiment can make the deliming rate of raw coal and desulfurization degree respectively reach 38.00% and 36.00%.
Further, described stokehold wet split system also includes, and exports, with the gangue in described raw coal separation device, the gangue Integrated Processing Unit arranged that is connected, for processing the sulfur and/or metal reclaimed in described gangue；Coal gangue crusher, coal gangues automation selection device and iron concentrate that described gangue Integrated Processing Unit includes being sequentially connected with process system, after described gangue is crushed to granularity of dissociating by described coal gangue crusher, entrance coal gangues automation selection device carries out sorting and obtains mine tailing, chats and iron concentrate, and described iron concentrate enters iron concentrate and processes system process recovery sulfur and/or metal.
As a comparison, raw coal and cleaned coal after burning, are obtained boiler back end ductwork flue gas, survey fly ash content therein respectively 39703mg/Nm in coal-burning boiler by this utility model respectively3And 21073mg/Nm3, it is seen that after sorting, in boiler back end ductwork flue gas, smoke content is decreased obviously；Respectively boiler back end ductwork flue gas is passed into again and flue gas electrostatic precipitator 4 carries out dedusting, smoke content respectively 39.7mg/Nm in flue gas after survey dedusting3And 21.074mg/Nm3(efficiency of dust collection is all in 99.9%)；Again by the further dedusting of demister in desulfurizing tower of the flue gas after dedusting, survey process after smoke content respectively 19.85mg/Nm3And 10.53mg/Nm3(efficiency of dust collection is all in 50%)；Finally, further dedusting in Wet type electric dust-removing device 6, in the flue gas that final system of the present utility model obtains, smoke content is 3.16mg/Nm3(efficiency of dust collection of this step in 70%), reaches Emission in Coal-fired Power Plant concentration and reaches 5mg/Nm3Minimum discharge standard, meet the flue gas of flue dust minimum discharge requirement and enter and discharge after chimney lifting to air, meet after the flue gas of flue dust minimum discharge requirement enters chimney lifting and discharge to air.
Obviously, above-described embodiment is only for clearly demonstrating example, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And the apparent change thus extended out or variation still in this utility model create protection domain among.
Claims (6)
1. based on a flue dust elimination system in wet method deliming technology coal-fired plant flue gas, including what be sequentially connected with,
Stokehold wet split system, in order to being cleaned coal and gangue by raw coal separation；Described stokehold wet split system includes raw coal separation device, it is provided with screening plant before the entrance of described raw coal separation device, the screening of described screening plant obtains the feed coal that granularity is not more than 50mm, and granularity is not more than the feed coal of 50mm by described raw coal separation device to be carried out sorting and obtain cleaned coal, middle coal and gangue；
Coal-burning boiler, in order to the described cleaned coal that burns, produces flue gas；
Flue gas electrostatic precipitator, carries out dedusting in order to the flue gas that described coal-burning boiler is produced；
Desulfurizing tower, described desulfurizing tower smoke outlet arranges demister, in order to the flue gas after described electrostatic precipitation is carried out dust elimination；With,
Wet type electric dust-removing device, in order to be met the wet except exiting flue gas of minimum discharge requirement to the described further dedusting of desulfurizing tower exiting flue gas；
The cleaned coal outlet of described stokehold wet split system is connected with the cleaned coal entrance of described coal-burning boiler；The back-end ductwork of described coal-burning boiler is connected with the smoke inlet of described flue gas electrostatic precipitator；The exhanst gas outlet of described flue gas electrostatic precipitator is connected with the smoke inlet of described desulfurizing tower；The exhanst gas outlet of described desulfurizing tower is connected with the smoke inlet of described Wet type electric dust-removing device.
2. as claimed in claim 1 based on flue dust elimination system in wet method deliming technology coal-fired plant flue gas, it is characterised in that:
Described flue gas electrostatic precipitator arranges high-voltage DC power supply, in order to make the dust being suspended in flue gas charged；Inside described flue gas electrostatic precipitator, dust collector pole is set, under electric field action, is enriched in Charged thereon for collecting；The bottom of described flue gas electrostatic precipitator is provided with ash bucket, in order to be collected by rapping mode from the Charged shaken off dust collector pole；
Being additionally provided with air inlet smoke box in described flue gas electrostatic precipitator and give vent to anger smoke box, described air inlet smoke box is connected with described coal-burning boiler back-end ductwork, described in smoke box of giving vent to anger connect with described desulfurizing tower smoke inlet；
Described Wet type electric dust-removing device arranges high-voltage DC power supply, in order to make the dust being suspended in flue gas charged；Inside described Wet type electric dust-removing device, dust collector pole is set, under electric field action, is enriched in Charged thereon for collecting；The bottom of described Wet type electric dust-removing device is provided with dust collection；Between upper end and the described dust collector pole of described Wet type electric dust-removing device, spray equipment is set, makes described dust collector pole surface form water membrane in order to shower water, finally make dust flow together with water in described dust collection；Described Wet type electric dust-removing device smoke inlet is connected with described desulfurizing tower exhanst gas outlet.
3. as claimed in claim 1 or 2 based on flue dust elimination system in wet method deliming technology coal-fired plant flue gas, it is characterised in that: include chimney, in order to discharge after plume rise to air；
Described chimney entrance is connected with the exhanst gas outlet of described Wet type electric dust-removing device；
Described desulfurizing tower arranges some spraying layers, in order to spray lime stone slurry；Described desulfurizing tower smoke outlet arranges multi-level tubular and/or ridge type demister, in order to further dedusting.
4. as claimed in claim 3 based on flue dust elimination system in wet method deliming technology coal-fired plant flue gas, it is characterised in that: described desulfurizing tower is limestone gypsum wet double tower double circulation desulphurization tower.
5. as claimed in claim 4 based on flue dust elimination system in wet method deliming technology coal-fired plant flue gas, it is characterised in that:
Described limestone gypsum wet double tower double circulation desulphurization tower is be linked in sequence the one-level prewashing column and two grades of main absorption towers that arrange；
Described one-level prewashing column middle and lower part arranges smoke inlet, and inside arranges some spraying layers, and top arranges exhanst gas outlet；
Middle and lower part, described two grades of main absorption towers arranges smoke inlet, and described one-level prewashing column exhanst gas outlet connects with described two grades of main adsorption tower smoke entrances；Arranging some spraying layers inside described two grades of main absorption towers, top arranges exhanst gas outlet, arranges multi-level tubular and/or ridge type demister at described smoke outlet；
It is provided with limestone slurry liquid pool bottom described one-level prewashing column and described two grades of main absorption towers, fresh lime stone slurry passes into described two grades of main absorption towers, and some spraying layers that the serosity in limestone slurry liquid pool is pumped in described two grades of main absorption towers by slurry circulating pump are set spray sulfur dioxide absorption, serosity in limestone slurry liquid pool bottom described two grades of main absorption towers is pumped in described one-level pre-absorption tower by pump simultaneously, and is pumped in described one-level prewashing column some spraying layers by the slurry circulating pump of described one-level prewashing column and sprays.
6. as described in claim 1,2,4 or 5 based in wet method deliming technology coal-fired plant flue gas flue dust elimination system, it is characterised in that:
Described stokehold wet split system includes,
The gangue Integrated Processing Unit arranged that is connected is exported, for processing the sulfur and/or metal reclaimed in described gangue with the gangue in described raw coal separation device；
Coal gangue crusher, coal gangues automation selection device and iron concentrate that described gangue Integrated Processing Unit includes being sequentially connected with process system, after described gangue is crushed to granularity of dissociating by described coal gangue crusher, entrance coal gangues automation selection device carries out sorting and obtains mine tailing, chats and iron concentrate, and described iron concentrate enters iron concentrate and processes system process recovery sulfur and/or metal.
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| CN106039911A (en) * | 2016-07-29 | 2016-10-26 | 中国神华能源股份有限公司 | Equipment and method for flue gas treatment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106039911A (en) * | 2016-07-29 | 2016-10-26 | 中国神华能源股份有限公司 | Equipment and method for flue gas treatment |
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