CN206112977U - Mixed powder process system of coal and mud coupling burning electricity generation - Google Patents
Mixed powder process system of coal and mud coupling burning electricity generation Download PDFInfo
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- CN206112977U CN206112977U CN201621102141.5U CN201621102141U CN206112977U CN 206112977 U CN206112977 U CN 206112977U CN 201621102141 U CN201621102141 U CN 201621102141U CN 206112977 U CN206112977 U CN 206112977U
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- 239000003245 coal Substances 0.000 title claims abstract description 90
- 230000005611 electricity Effects 0.000 title claims abstract description 15
- 230000008878 coupling Effects 0.000 title claims abstract description 14
- 238000010168 coupling process Methods 0.000 title claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title abstract description 9
- 230000008569 process Effects 0.000 title abstract description 8
- 239000011812 mixed powder Substances 0.000 title abstract 2
- 239000010802 sludge Substances 0.000 claims abstract description 72
- 238000001035 drying Methods 0.000 claims abstract description 38
- 239000000843 powder Substances 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims description 38
- 238000002360 preparation method Methods 0.000 claims description 19
- 238000002485 combustion reaction Methods 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 13
- 239000000779 smoke Substances 0.000 claims description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 10
- 239000003546 flue gas Substances 0.000 claims description 10
- 239000002274 desiccant Substances 0.000 claims description 9
- 235000019504 cigarettes Nutrition 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000010248 power generation Methods 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a mixed powder process system of coal and mud coupling burning electricity generation, including coal pulverizer, sludge storage bin, drying tube, fan mill, classifier, cyclone, heat exchanger and mixed fan, the discharge gate of coal pulverizer is connected with pulverized coal boiler's combustor, sludge storage bin with the feed inlet of drying tube is connected, the discharge gate warp of drying tube the fan grind with classifier's feed inlet is connected, classifier's discharge gate is connected cyclone's feed inlet, cyclone's fine powder outlet warp heat exchanger connects the first entry that mixes the fan, the middlings exit linkage of whirlwind shunt the the second entrance who mixes the fan, the export that mixes the fan with pulverized coal boiler's combustor is connected. The utility model discloses the system implementation combining of coal fired power generation, sludge drying and burning, have the advantage that the handling capacity is big, the flow is succinct, the gas tightness is good.
Description
Technical field
This utility model is related to coal-fired power generator set field, more particularly to the mixing that a kind of coal and sludge coupling combustion generate electricity
Pulverized coal preparation system.
Background technology
Municipal sludge is the garbage produced in sewage disposal process.Count according to house and town and country construction portion, year in 2015
End, 14028 ten thousand stere of National urban sewage treatment plant daily handling ability, 428.8 billion cubic meter of year sewage disposal total amount.Sludge
Yield has relation with the height of sewage treatment process and standard, accounts for processing the 0.3%-0.5% of the water yield (with moisture content 97%
Meter), then the sludge of sewage disposal process generation in 2015 reaches hundred million tons of 1.29-2.14.Contain plurality of heavy metal, pathogen in sludge
With difficult degradation toxic organic compound, can also emitting offensive odor.If sludge is not effectively processed and is disposed in addition, can severe contamination ring
Border, impact people's are healthy.Therefore, the process of sludge and recycling, it has also become the major fields of environmental conservation it
One.
The final disposal that the pretreatment of sludge has the technologies such as conditioning, concentration, dehydration, stabilisation and mummification, sludge mainly has
The emerging technologies such as the modes such as landfill, Land_use change, construction material utilization, biological treatment and burning, pyrolysis, gasification and pyrohydrolysiss
Among research and development.
In the above-described techniques, sludge drying-incineration technology is quickly grown in recent years.Due to the sludge that sewage treatment plant produces
Still have very high moisture content Jing after mechanical dehydration, calorific value is very low, generally sludge is dehydrated and drying and other treatment after, then by stove
Grate furnace, rotary kiln and fluidized bed incinerator etc. are individually burned, or carry out multifuel combustion with coal in being sent to boiler of power plant.Due to electricity
Boiler oil consumption of standing is big, and in-furnace temperature level is high, and flue-gas cleaning devices are perfect, so dirty based on station boiler cooperative disposal
Mud art has the advantages that treating capacity is big, processing speed is fast, innoxious thorough, and application at home is increasing.
At present, as sludge drying-burning engineering that most of thermal power plant puts into operation belongs to improvement project, original boiler leads to
A kind of pulverized coal preparation system of pattern is only matched somebody with somebody according to the characteristic of design coal often, it is impossible to directly receive the sludge of high-moisture percentage, thus mend
Filling arrangement sludge drying workshop carries out sludge drying, and mummification workshop and steam generator system are relatively independent, distant, and dewatered sludge turns
The coal yard or special warehouse of sludge of power plant are transported to, pulverized coal preparation system is sent into using Belt Conveying mode then, or is directly passed through spiral shell
Burn in rotation conveying, air conveying entrance stove.Sludge after mummification has airborne dust in stacking and course of conveying and foul smell is distributed,
And the sealing property of belt conveyor system is poor, so easily causing foul smell to spread in plant area and near zone, cause building ring
Border is severe, has a strong impact on the enthusiasm of power plant's burning sludge.
Therefore, Development of Novel pulverized coal preparation system, adapts to the requirement of the common coal and sludge multifuel combustion on generating plant pulverized coal boiler, is
The important foundation of sludge incineration disposal is carried out by thermal power plant, has positive effect for environmental conservation is promoted.
Utility model content
Based on this, for above-mentioned technical problem, there is provided the mixing pulverized coal preparation system that a kind of coal and sludge coupling combustion generate electricity.
To solve above-mentioned technical problem, this utility model is adopted the following technical scheme that：
The mixing pulverized coal preparation system that a kind of coal and sludge coupling combustion generate electricity, including coal pulverizer, warehouse of sludge, drying tube, wind
Fan mill, mill separator, cyclone separator, heat exchanger and mixing blower fan, the discharging opening and pulverized-coal fired boiler of the coal pulverizer
Burner connection, the warehouse of sludge is connected with the charging aperture of the drying tube, wind described in the discharging opening Jing of the drying tube
Fan mill is connected with the charging aperture of the mill separator, and the discharging opening of the mill separator connects entering for the cyclone separator
Material mouth, the first entrance of the heat exchanger connection mixing blower fan, institute described in the fine powder outlet connection Jing of the cyclone separator
State the second entrance of the coarse powder outlet connection mixing blower fan of whirlwind diverter, outlet and the coal dust of the mixing blower fan
The burner connection of boiler.
This programme also includes cleaner unit, cold smoke blower fan and mixing chamber, cigarette of the cleaner unit located at the pulverized-coal fired boiler
Road afterbody, its outlet Jing described in cold smoke blower fan be connected with the cold smoke import of mixing chamber, the hot cigarette import of the mixing chamber with it is described
The high-temperature flue gas extraction opening connection of pulverized-coal fired boiler, and the mixed flue gas of the mixing chamber export the desiccant inlet with the drying tube
Connection.
This programme also includes air preheater, the first blower fan and the second blower fan, and the air preheater is located at the coal
The flue afterbody of powder boiler, its air intlet are connected with first blower fan and the second blower fan, and its First air is exported and institute
Coal pulverizer connection is stated, secondary wind outlet is connected with the burner of the pulverized-coal fired boiler.
This programme also includes coal bunker and feeder, and the coal bunker is connected with feeder, the feeder and the coal-grinding
Machine connects.
The discharging opening of the drying tube is connected with the fan mill by negative pressure system.
This utility model system realizes the combination of coal fired power generation, sludge drying and burning, with treating capacity is big, stream
Journey is succinct, the advantage that air-tightness is good, and which has the advantage that：
(1) direct feed pulverized coal-fan mill sludge drying pulverized coal preparation system and conventional pulverized-coal preparation system are applied in combination, it is adaptable to Gao Han
The coupling combustion of water rate sludge and coal generates electricity.
(2) sludge drying and powder processed are completed in the system simultaneously, it is not necessary to carry out the long range transhipment of dewatered sludge, flow process
Short, equipment is few；Warehouse of sludge to fan mill entrance is negative pressure system, and fan mill is exported to the company between coal powder fired boiler burner
Adapter road is the good steel bearing pipe of air-tightness, and the foul smell that can be escaped in fully avoiding dust and sludge is diffused in environment.
(3) burner hearth is sent directly in the system after sludge drying powder, this unit pulverized-coal system avoids sludge powder
The separation at end and storage link, compared to middle storage formula sludge drying pulverized coal preparation system, can reduce equipment and initial cost, reduce system resistance
Power, effectively eliminates the risk of Volatile, slow oxidation and spontaneous combustion during dewatered sludge is separated and stored.
(4) system is advantageously implemented sludge to the mummification powder ability of high water content sludge up to more than 100t/h
It is extensive to dispose.
Description of the drawings
This utility model is described in detail with reference to the accompanying drawings and detailed description：
Fig. 1 is structural representation of the present utility model.
Specific embodiment
As shown in figure 1, the mixing pulverized coal preparation system that a kind of coal and sludge coupling combustion generate electricity, including coal bunker 1, feeder 2, mill
Coal machine 3, warehouse of sludge 4, drying tube 5, fan mill 6, mill separator 7, cyclone separator 101, heat exchanger 102 and mixing
Blower fan 103.
Coal bunker 1 is connected with feeder 2, and feeder 2 is connected with coal pulverizer 3, discharging opening and the pulverized-coal fired boiler 14 of coal pulverizer 3
Burner 14a connects.
Warehouse of sludge 4 is connected with the charging aperture of drying tube 5, discharging opening Jing fan mills 6 and the mill separator 7 of drying tube 5
Charging aperture connection, the discharging opening of mill separator 7 is connected to the charging aperture of cyclone separator 101, cyclone separator 101 it is thin
Powder outlet connection heat exchanger 102, heat exchanger 102 reconnect the first entrance of mixing blower fan 103, whirlwind diverter 101
Coarse powder outlet is connected to the second entrance of mixing blower fan 103, mixes the outlet of blower fan 103 and the burner 14a of pulverized-coal fired boiler 14
Connection.Between coarse powder diverter 7 and cyclone separator 101, cyclone separator 101 respectively with heat exchanger 102 and mix blower fan
Between 103, heat exchanger 102 with mix between blower fan 103 and mixing blower fan 103 and burner 14a between be by steel
Bearing pipe connection processed.
Preferably, the discharging opening of drying tube 5 is connected with fan mill 6 by negative pressure system.
Raw coal Jing feeders 2 in coal bunker 1 send into coal pulverizer 3, and the primary wind and powder mixture of 3 discharging opening of coal pulverizer is transported to
The burner 14a of pulverized-coal fired boiler 14.
Sludge in warehouse of sludge 4 is transported to drying tube 5, contacts and is tentatively done with the desiccant in drying tube 5 is added
It is dry, fan mill 6 is entered in the lump with desiccant then, is further dried and is ground to regulation particle diameter, fan mill 6 goes out one's intention as revealed in what one says powder to be mixed
Compound enters mill separator 7, and the excessive granule of particle diameter continues grinding, qualified sewage sludge powder and drying in returning fan mill 6
Weary gas conveys cyclone separator 101 together, and granule thicker sludge powder is delivered to mixing blower fan 103 by cyclone separator 101, and
Be contaminated with the weary gas of the thinner sewage sludge powder of granule and then enter heat exchanger 102, in heat exchanger 102, is passed through cold water, by with
The heat exchange of weary gas, the moisture being further condensed out in weary gas obtain the weary gas being contaminated with compared with fine sludge powder being more dried
Mixing blower fan 103 is conveyed in the lump, and the final blower fan 103 that mixes is by the primary mixture pulverized coal conveying boiler 14 being further dried
Burner 14a, so as to more contribute to carrying out mixed combustion in burner 14a and coal dust.
This utility model system realizes the combination of coal fired power generation, sludge drying and burning, with treating capacity is big, stream
Journey is succinct, the advantage that air-tightness is good, and which has following features：
(1) direct feed pulverized coal-fan mill sludge drying pulverized coal preparation system and conventional pulverized-coal preparation system are applied in combination, it is adaptable to Gao Han
The coupling combustion of water rate sludge and coal generates electricity.
(2) sludge drying and powder processed are completed in the system simultaneously, it is not necessary to carry out the long range transhipment of dewatered sludge, flow process
Short, equipment is few；Warehouse of sludge to fan mill entrance is negative pressure system, and fan mill is exported to the company between coal powder fired boiler burner
Adapter road is the good steel bearing pipe of air-tightness, and the foul smell that can be escaped in fully avoiding dust and sludge is diffused in environment.
(3) burner hearth is sent directly in the system after sludge drying powder, this unit pulverized-coal system avoids sludge powder
The separation at end and storage link, compared to middle storage formula sludge drying pulverized coal preparation system, can reduce equipment and initial cost, reduce system resistance
Power, effectively eliminates the risk of Volatile, slow oxidation and spontaneous combustion during dewatered sludge is separated and stored.
(4) system is advantageously implemented sludge to the mummification powder ability of high water content sludge up to more than 100t/h
It is extensive to dispose.
The present embodiment also has cleaner unit 8, cold smoke blower fan 9 and mixing chamber 10, cigarette of the cleaner unit 8 located at pulverized-coal fired boiler 14
The afterbody of road 14b, its outlet Jing cold smokes blower fan 9 are connected with the cold smoke import of mixing chamber 10, the hot cigarette import of mixing chamber 10 and coal
The high-temperature flue gas extraction opening 14c of powder boiler 14 connects, and the mixed flue gas outlet of the mixing chamber 10 is entered with the desiccant of drying tube 5
Mouth connection.
High-temperature flue gas from high-temperature flue gas extraction opening 14c are sent in mixing chamber 10, from cold smoke blower fan 9 as desiccant
Low-temperature furnace smoke equally send in mixing chamber 10 as desiccant, sludge and high-temperature flue gas carry out direct contact heat transfer, and steam
The indirectly drying mode such as mummification is compared, and can significantly improve the speed and treatment scale of sludge drying, and due to adopting high temperature
Two medium desiccant of stove cigarette and low-temperature furnace smoke, in desiccant, oxygen content is very low, therefore may insure the safety of drying system, keeps away
Exempt from blast.
The present embodiment also has air preheater 11, the first blower fan 12 and the second blower fan 13, and air preheater 11 is located at
The afterbody of the flue 14b of pulverized-coal fired boiler 14, its air intlet are connected with the first blower fan 12 and the second blower fan 13, and its First air
Outlet is connected with coal pulverizer 3, and secondary wind outlet is connected with the burner 14a of pulverized-coal fired boiler 14.
First blower fan 12 sucks air from environment, Jing after air preheater 11 is heated sends into coal pulverizer 3, the second blower fan 13
Air is sucked from environment, burner 14a is sent into Jing after air preheater 11 is heated.
But, those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to explanation originally
Utility model, and be not used as be to restriction of the present utility model, if in spirit of the present utility model, to
The change of the upper embodiment, modification will all fall in Claims scope of the present utility model.
Claims (5)
1. the mixing pulverized coal preparation system that a kind of coal and sludge coupling combustion generate electricity, it is characterised in that including coal pulverizer, warehouse of sludge,
Drying tube, fan mill, mill separator, cyclone separator, heat exchanger and mixing blower fan, the discharging opening of the coal pulverizer with
The burner connection of pulverized-coal fired boiler, the warehouse of sludge are connected with the charging aperture of the drying tube, the discharging opening of the drying tube
Fan mill described in Jing is connected with the charging aperture of the mill separator, and the discharging opening of the mill separator connects the whirlwind point
From the charging aperture of device, described in the fine powder outlet Jing of the cyclone separator, the first of the heat exchanger connection mixing blower fan enters
Mouthful, the coarse powder outlet of the whirlwind diverter connects the second entrance of the mixing blower fan, the outlet of the mixing blower fan and institute
State the burner connection of pulverized-coal fired boiler.
2. the mixing pulverized coal preparation system that a kind of coal according to claim 1 and sludge coupling combustion generate electricity, it is characterised in that also
Including cleaner unit, cold smoke blower fan and mixing chamber, flue afterbody of the cleaner unit located at the pulverized-coal fired boiler, its outlet Jing institute
State cold smoke blower fan to be connected with the cold smoke import of mixing chamber, the hot cigarette import of the mixing chamber and the high-temperature flue gas of the pulverized-coal fired boiler
Extraction opening connects, and the mixed flue gas outlet of the mixing chamber is connected with the desiccant inlet of the drying tube.
3. the mixing pulverized coal preparation system that a kind of coal according to claim 1 and 2 and sludge coupling combustion generate electricity, its feature exist
In, also including air preheater, the first blower fan and the second blower fan, flue of the air preheater located at the pulverized-coal fired boiler
Afterbody, its air intlet are connected with first blower fan and the second blower fan, and its First air outlet is connected with the coal pulverizer,
Secondary wind outlet is connected with the burner of the pulverized-coal fired boiler.
4. the mixing pulverized coal preparation system that a kind of coal according to claim 3 and sludge coupling combustion generate electricity, it is characterised in that also
Including coal bunker and feeder, the coal bunker is connected with feeder, and the feeder is connected with the coal pulverizer.
5. the mixing pulverized coal preparation system that a kind of coal according to claim 4 and sludge coupling combustion generate electricity, it is characterised in that institute
The discharging opening for stating drying tube is connected with the fan mill by negative pressure system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621102141.5U CN206112977U (en) | 2016-09-30 | 2016-09-30 | Mixed powder process system of coal and mud coupling burning electricity generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621102141.5U CN206112977U (en) | 2016-09-30 | 2016-09-30 | Mixed powder process system of coal and mud coupling burning electricity generation |
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| CN206112977U true CN206112977U (en) | 2017-04-19 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439892A (en) * | 2016-09-30 | 2017-02-22 | 上海垒锦环境科技中心 | Mixed powder preparation system with coal and sludge coupling combustion power generation |
| CN108644788A (en) * | 2018-05-22 | 2018-10-12 | 华中科技大学 | A kind of oxygenation combustion method of coal dust blending sludge |
| CN108679599A (en) * | 2018-05-22 | 2018-10-19 | 华中科技大学 | A kind of oxygenation combustion method of coal dust blending biomass |
| CN109231781A (en) * | 2018-10-08 | 2019-01-18 | 上海锅炉厂有限公司 | A kind of sludge drying coupling coal generating system and method |
| CN110645589A (en) * | 2019-10-24 | 2020-01-03 | 广西霄能绿色科技有限公司 | A powder process burning integrated device for biomass fuel |
| CN116772191A (en) * | 2023-06-14 | 2023-09-19 | 东方电气集团东方锅炉股份有限公司 | A coal slime drying and quality-coupling combustion power generation system |
-
2016
- 2016-09-30 CN CN201621102141.5U patent/CN206112977U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439892A (en) * | 2016-09-30 | 2017-02-22 | 上海垒锦环境科技中心 | Mixed powder preparation system with coal and sludge coupling combustion power generation |
| CN108644788A (en) * | 2018-05-22 | 2018-10-12 | 华中科技大学 | A kind of oxygenation combustion method of coal dust blending sludge |
| CN108679599A (en) * | 2018-05-22 | 2018-10-19 | 华中科技大学 | A kind of oxygenation combustion method of coal dust blending biomass |
| CN108644788B (en) * | 2018-05-22 | 2020-05-19 | 华中科技大学 | Oxygen-enriched combustion method for coal powder mixed with sludge |
| CN108679599B (en) * | 2018-05-22 | 2020-06-26 | 华中科技大学 | Oxygen-enriched combustion method for mixing pulverized coal with biomass |
| CN109231781A (en) * | 2018-10-08 | 2019-01-18 | 上海锅炉厂有限公司 | A kind of sludge drying coupling coal generating system and method |
| CN110645589A (en) * | 2019-10-24 | 2020-01-03 | 广西霄能绿色科技有限公司 | A powder process burning integrated device for biomass fuel |
| CN116772191A (en) * | 2023-06-14 | 2023-09-19 | 东方电气集团东方锅炉股份有限公司 | A coal slime drying and quality-coupling combustion power generation system |
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