CN203731459U - A circulating pulverizing system applied to a small- and medium-size industrial pulverized coal boiler - Google Patents
A circulating pulverizing system applied to a small- and medium-size industrial pulverized coal boiler Download PDFInfo
- Publication number
- CN203731459U CN203731459U CN201320815545.9U CN201320815545U CN203731459U CN 203731459 U CN203731459 U CN 203731459U CN 201320815545 U CN201320815545 U CN 201320815545U CN 203731459 U CN203731459 U CN 203731459U
- Authority
- CN
- China
- Prior art keywords
- coal
- drying
- size
- pulverized coal
- delivered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a boiler front pulverizing system and technology suitable for small- and medium-size industrial boilers, specifically to a circulating pulverizing system applied to a small- and medium-size industrial pulverized coal boiler. Through improvement of a drying heat source generating channel, pulverized coal generated by the system is used as the fuel of a hot flue gas boiler and thus the heat source generating efficiency is improved and contaminants carried in the heat source are reduced. The circulating pulverizing system has the advantages of circulation, high efficiency and environmental protection and is applicable to the small- and medium-size industrial pulverized coal boiler. The technical scheme is characterized in that an outlet of a raw coal conveying and crushing device is connected with an inlet of a drying device, coal briquettes formed by crushing raw coal are conveyed to the drying device for heating and drying, an outlet of the drying device is connected with an inlet of a pulverizing device, dried coal briquettes are conveyed to the pulverizing device for pulverization, and a branch outlet pipe of the pulverizing device is used for providing heat supply pulverized coal for a boiler in the drying device through a pipeline. The circulating pulverizing system can be widely applied to the field of coal-fired boilers.
Description
Technical field
The utility model relates to one and is applicable to mediumand smallscale industrial boilers stokehold pulverized coal preparation system and technique, is specifically related to a kind of circulation pulverized coal preparation system that is applied to middle-size and small-size industrial coal powder boiler.
Background technology
Coal-burned industrial boiler is the main heat energy equipment of China, according to statistics, ends 2010, and sum reaches 60.12 ten thousand, and total capacity reaches 3,480,000 and steams ton, nearly 700,000,000 tons, year consumption coal.Being mainly chain furnace with coal-burned industrial boiler, account for more than 85% at present, also have in addition a small amount of reciprocal grate, fixed grate, CFBB etc.Chain furnace adopts broken coal burning, and granularity is inhomogeneous, and coefficient of excess air is high, and bulky grain burning is not thorough, and residual ash content is high, and boiler hot effect is lower, and flue gas pollutant is difficult to up to standard.
Novel energy-saving environment-friendly industrial coal powder boiler is by adopting coal dust firing core technology, integrated coal dust centralized system is standby, accurate for powder, Researched of Air Staging Combustion Burning Pulverized Coal, desulfuration in furnace, water pipe (or shell) formula boiler heat exchange, high-efficiency cloth bag dedusting, flue gas desulfurization and the overall process advanced technology such as controls automatically, have efficient energy-saving, environment-protecting clean, simple to operate, take up an area saving, the advantage such as safe and reliable.
Along with the iterative method of national energy-saving reduction of discharging policy, adopt the coal-burning boiler of high-efficiency environment friendly progressively developed, the demand for development of novel energy-saving environment-friendly industrial coal powder boiler load national policy, is widely used.Along with urbanization process is accelerated, it is universal that concentrated supply of heating in the city obtains large area, when promoting industrial coal powder boiler application, more and more higher to the pulverized coal preparation system demand of high-efficiency cleaning.
Existing pulverized coal preparation system is compared with conventional boiler pulverized coal preparation system, all be greatly improved at aspects such as system layout mode, occupation of land, automation control, environmental protection, can meet quality of pc and the capacity requirement of boiler combustion, but required its generation efficiency of a large amount of thermals source of its drying system is lower, major part all adopts traditional grate furnace, and fuel is lump coal.
Utility model content
The utility model has overcome the deficiency that prior art exists, provide a kind of and dried thermal source generation channel by improvement, the coal dust producing using system self is as the fuel of hot combustion gas furnace, improve the generation efficiency of thermal source, reduce the pollutant carrying in thermal source, there is the feature of circulation high-efficiency environment friendly, can be applied to the circulation pulverized coal preparation system of middle-size and small-size industrial coal powder boiler.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of circulation pulverized coal preparation system that is applied to middle-size and small-size industrial coal powder boiler, comprise raw coal conveying breaker, drying unit and fuel pulverizing plant, described raw coal carries the outlet of breaker and the entrance of drying unit to be connected, coal cinder after raw coal fragmentation is delivered to drying unit and carries out heating, drying, the outlet of described drying unit is connected with the entrance of fuel pulverizing plant, coal cinder after drying is delivered to fuel pulverizing plant and carries out powder process, the primary outlet pipe of described fuel pulverizing plant is that industrial coal powder boiler body is for coal dust, the outlet of described fuel pulverizing plant provides heat supply coal dust by pipeline for the boiler in drying unit,
The structure of described fuel pulverizing plant is: comprise screw-type coal distributor, coal pulverizer, cloth bag collection machine, conveying worm, the second bucket elevator and Pulverized Coal Bin, described drying unit is connected with coal pulverizer by screw-type coal distributor, coal cinder after drying is delivered to coal pulverizer and carries out abrasive dust, the outlet of described coal pulverizer is connected with the entrance of cloth bag collection machine, the outlet of described cloth bag collection machine is connected with Pulverized Coal Bin with the second bucket elevator by conveying worm, and the coal dust under cloth bag collection machine is collected is delivered into Pulverized Coal Bin by conveying worm and the second bucket elevator.
Described coal pulverizer top is provided with coal analysis machine, and the coal dust that coal pulverizer is ground selects powder to separate, and meal returns in coal pulverizer and continues abrasive dust, and qualified coal dust enters cloth bag collection machine and collects.
Described raw coal carries the structure of breaker for comprising: indoor coal storage yard, ground reception bunker, oscillating feeder, rubber conveyer, disintegrating machine and the first belt feeder, described indoor coal storage yard is arranged on a side of ground reception bunker, raw coal adds ground reception bunker by coal pusher, the feed opening of described ground reception bunker is connected with the charging aperture of disintegrating machine with rubber conveyer by oscillating feeder, after being delivered to disintegrating machine, raw coal is broken for the coal cinder that granularity is different, the discharging opening of described disintegrating machine is connected with the entrance of drying unit by the first belt feeder, coal cinder after fragmentation is delivered to and in drying unit, carries out heating, drying.
The top of described the first belt feeder is provided with permanent-magnetic iron expeller, and the ironware in coal cinder is removed.
The structure of described drying unit is: comprise drying kiln, the second belt feeder, the first bucket elevator, run coal bin and star-like discharger, the discharging opening of described drying kiln is connected with the charging aperture of run coal bin with the first bucket elevator by the second belt feeder, kiln dried oven dry coal cinder is delivered in run coal bin through the second belt feeder and the first bucket elevator, the discharging opening of described run coal bin is connected with the entrance of fuel pulverizing plant by star-like discharger, the coal cinder in run coal bin is delivered to fuel pulverizing plant through star-like discharger and carries out powder process.
The mouth that enters of described drying kiln is provided with hot combustion gas furnace, the exhaust opening of described drying kiln is connected with chimney by deduster, on the furnace wall of described hot combustion gas furnace, be provided with air blast, oxygen required coal dust completing combustion in hot combustion gas furnace is blasted in body of heater through air channel, burner hearth outer ring, on the connecting line between described deduster and chimney, be provided with air-introduced machine.
The beneficial effect that the utility model compared with prior art has is: what the utility model adopted is the warehouse style operation of negative pressure, the coal dust having ground enters Pulverized Coal Bin to carry out to powder according to boiler load, meet boiler and open the demand of stopping, the utility model adopts the thermal source of low profile thermal combustion gas furnace combusting coal fines as drying kiln simultaneously, improve drying system thermal source generation efficiency, the coal dust that hot combustion gas furnace fuel source stores in pulverized coal preparation system Pulverized Coal Bin, has realized fuel self-loopa.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described further.
Fig. 1 is process chart of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the process chart of hot combustion gas furnace in the utility model.
In figure, 1 for raw coal carry breaker, 2 for drying unit, 3 for fuel pulverizing plant, 4 for hot combustion gas furnace, 5 for drying kiln, 6 be that the first bucket elevator, 7 is for run coal bin, 8 is for screw-type coal distributor, 9 is for coal pulverizer, 10 is for Pulverized Coal Bin, 11 is for deduster, 12 is for chimney.
Detailed description of the invention
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of circulation pulverized coal preparation system that is applied to middle-size and small-size industrial coal powder boiler of the utility model, comprise raw coal conveying breaker 1, drying unit 2 and fuel pulverizing plant 3, described raw coal carries the outlet of breaker 1 to be connected with the entrance of drying unit 2, coal cinder after raw coal fragmentation is delivered to drying unit 2 and carries out heating, drying, the outlet of described drying unit 2 is connected with the entrance of fuel pulverizing plant 3, coal cinder after drying is delivered to fuel pulverizing plant 3 and carries out powder process, the primary outlet pipe of described fuel pulverizing plant 3 is that industrial coal powder boiler body is for coal dust, the outlet of described fuel pulverizing plant 3 provides heat supply coal dust by pipeline for the boiler in drying unit 2,
The structure of described fuel pulverizing plant 3 is: comprise screw-type coal distributor 8, coal pulverizer 9, cloth bag collection machine, conveying worm, the second bucket elevator and Pulverized Coal Bin 10, described drying unit 2 is connected with coal pulverizer 9 by screw-type coal distributor 8, coal cinder after drying is delivered to coal pulverizer 9 and carries out abrasive dust, the outlet of described coal pulverizer 9 is connected with the entrance of cloth bag collection machine, the outlet of described cloth bag collection machine is connected with Pulverized Coal Bin 10 with the second bucket elevator by conveying worm, and the coal dust under cloth bag collection machine is collected is delivered into Pulverized Coal Bin 10 by conveying worm and the second bucket elevator.
Described coal pulverizer 9 tops are provided with coal analysis machine, and the coal dust that coal pulverizer 9 is ground selects powder to separate, and meal returns in coal pulverizer 9 and continues abrasive dust, and qualified coal dust enters cloth bag collection machine and collects.
Described raw coal carries the structure of breaker 1 for comprising: indoor coal storage yard, ground reception bunker, oscillating feeder, rubber conveyer, disintegrating machine and the first belt feeder, described indoor coal storage yard is arranged on a side of ground reception bunker, raw coal adds ground reception bunker by coal pusher, the feed opening of described ground reception bunker is connected with the charging aperture of disintegrating machine with rubber conveyer by oscillating feeder, after being delivered to disintegrating machine, raw coal is broken for the coal cinder that granularity is different, the discharging opening of described disintegrating machine is connected with the entrance of drying unit 2 by the first belt feeder, coal cinder after fragmentation is delivered to and in drying unit 2, carries out heating, drying.
The top of described the first belt feeder is provided with permanent-magnetic iron expeller, and the ironware in coal cinder is removed.
The structure of described drying unit 2 is: comprise drying kiln 5, the second belt feeder, the first bucket elevator 6, run coal bin 7 and star-like discharger, the discharging opening of described drying kiln 5 is connected with the charging aperture of run coal bin 7 with the first bucket elevator 6 by the second belt feeder, the coal cinder of drying in drying kiln 5 is delivered in run coal bin 7 through the second belt feeder and the first bucket elevator 6, the discharging opening of described run coal bin 7 is connected with the entrance of fuel pulverizing plant 3 by star-like discharger, the coal cinder in run coal bin 7 is delivered to fuel pulverizing plant 3 through star-like discharger and carries out powder process.
The mouth that enters of described drying kiln 5 is provided with hot combustion gas furnace 4, the exhaust opening of described drying kiln 5 is connected with chimney 12 by deduster 11, on the furnace wall of described hot combustion gas furnace 4, be provided with air blast, oxygen required coal dust completing combustion in hot combustion gas furnace 4 is blasted in body of heater through air channel, burner hearth outer ring, on the connecting line between described deduster 11 and chimney 12, be provided with air-introduced machine.
Fuel pulverizing plant 3 in the utility model, selects coal pulverizer 9 for Raymond mill, designs by pulverized coal preparation dispensing station.The utility model is negative pressure operation, hot combustion gas furnace 4 is small-sized pulverized-coal fired boiler, the coal dust that pulverized coal preparation system produces is as hot combustion gas furnace 4 fuel sources, and coal pulverizer 9 grinds coal dust and collected by cloth bag collection machine, and coal dust is delivered to Pulverized Coal Bin 10 through conveying worm and the second airtight bucket elevator.The utility model comprises raw coal to be carried breaker, drying unit, fuel pulverizing plant and automatically controls, and system process figure is shown in Fig. 1 and Fig. 2, and technological process is described as follows:
(1) raw coal is carried breaker
Raw coal is deposited in indoor coal storage yard, raw coal is added to ground reception bunker with coal pusher, the oscillating feeder of coal bunker feed opening is delivered to disintegrating machine by rubber conveyer by former coal cinder, former coal cinder is broken for the coal grain that granularity is different after disintegrating machine, carry through the first belt feeder, the first belt feeder overhung permanent-magnetic iron expeller, removes the ironware in raw coal.
(2) drying unit
Adopt hot flue gas that a hot combustion gas furnace 4 of burning coal powder produces as drying thermal source.Coal dust drops down onto helix powder feeding machine by Pulverized Coal Bin 10 bottom arms, the coal burner that the high-pressure blast that roots blower produces is delivered to coal dust in hot combustion gas furnace 4 through coal, pulverulent fuel mixer burns, air blast provides coal dust completing combustion required oxygen, and cold air is entered by air channel, burner hearth outer ring.
Coal grain after drying kiln 5 is dried is transported to the first bucket elevator by the second belt feeder again, after be promoted in coal pulverizer 9 run coal bin 7 above, by star-like discharger, raw coal is sent to screw-type coal distributor 8, gives coal pulverizer 9 feed by the screw-type coal distributor 8 of variable ratio frequency changer speed governing.
(3) fuel pulverizing plant
Screw-type coal distributor 8 is given coal pulverizer 9 feed, the coal dust grinding rises with drying air-flow, select powder to separate through coal analysis machine, meal returns in coal pulverizer 9 and continues abrasive dust, qualified coal dust is carried and is entered cloth bag collection machine collection by air-flow, and the coal dust under collecting is delivered into Pulverized Coal Bin 10 by conveying worm and the second airtight bucket elevator.Tail gas after treatment enters atmosphere by air-introduced machine.Pulverized Coal Bin 10 is equipped with oxygen content and pressure-measuring-point with cloth bag collection machine, and is equipped with low-pressure nitrogen fireproof fire-extinguishing device, and hot exhanst gas outlet, coal pulverizer 9 bodies, Pulverized Coal Bin 10 and sack cleaner 11 are equipped with explosion proof door.
(4) automatic control system
Automatic control system in the utility model comprises coal pulverizer 9 unit equipment start and stop, 4 start and stop of hot combustion gas furnace, warning and protection.
Grinding machine unit equipment starts:
---coal dust promotes bucket elevator, and------------anti-explosion dust remover purges controller (comprising impulse generator and cylinder solenoid valve), and------------raw coal promotes bucket elevator---the hot combustion gas furnace of belt conveyor---vibration coal feeder---to electric gate valve to feeder to coal pulverizer (its inner boot sequence is by main frame electronic control) to star-like discharging device to little receipts powder spiral to air-introduced machine to receive greatly powder spiral.
Grinding machine unit equipment stops:
Hot combustion gas furnace (by hot combustion gas furnace downtime schedule)---vibration coal feeder---raw coal belt conveyer---raw coal promotes bucket elevator---electric gate valve---grinding machine feeder---hot blast conveying fan---the main motor of grinding machine---analytical engine---deduster purges controller---star-like discharging device---little receipts powder spiral---receive greatly powder spiral---coal dust promote bucket elevator---air-introduced machine.
Hot combustion gas furnace igniting:
---------------(manual closing gas valve door after normally catching fire) adjusts machine supplying powder, first and second blower fan to required powder-feeding amount and wind supply quantity to (manual open burnt gas valve after) initial igniter---(burner normally catch fire after) starts feeder and adjust to the position of process stipulation---to front purging 5min to adjust primary air flow to technique initialization position to start primary air fan to adjust secondary air flow to technique initialization position to start overfire air fan.
Hot combustion gas furnace is ceased fire:
Overfire air fan is closed in---stopping primary air fan---(when loss of ignition, manual closing gas valve behind the door) time delay (post-purge 5min) to stop machine supplying powder.
Report to the police and protection:
1. Pulverized Coal Bin: by the Pulverized Coal Bin reserves upper limit is set to alarm, the coal pulverizer that reaches capacity is out of service, reaches lower limit alarm and stops hot combustion gas furnace.Setting Pulverized Coal Bin storehouse presses and Pulverized Coal Bin temperature upper limit.
2. hot combustion gas furnace: by hot fume furnace outlet flue-gas temperature is set, flame detector is set, starts and report to the police.
3. coal pulverizer: by coal pulverizer outlet temperature capping, exceed setting value and report to the police.
Pulverized Coal Bin and cloth bag collection machine are equipped with oxygen content and pressure-measuring-point, and are equipped with low-pressure nitrogen fireproof fire-extinguishing device.Hot exhanst gas outlet, coal pulverizer body, Pulverized Coal Bin and sack cleaner are equipped with explosion proof door.
By the setting of above control program, ensure this pulverized coal preparation system stability and continuity.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken possessing those of ordinary skill in the art, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (6)
1. one kind is applied to the circulation pulverized coal preparation system of middle-size and small-size industrial coal powder boiler, it is characterized in that: comprise raw coal conveying breaker (1), drying unit (2) and fuel pulverizing plant (3), described raw coal carries the outlet of breaker (1) to be connected with the entrance of drying unit (2), coal cinder after raw coal fragmentation is delivered to drying unit (2) and carries out heating, drying, the outlet of described drying unit (2) is connected with the entrance of fuel pulverizing plant (3), coal cinder after drying is delivered to fuel pulverizing plant (3) and carries out powder process, the primary outlet pipe of described fuel pulverizing plant (3) is that industrial coal powder boiler body is for coal dust, the outlet of described fuel pulverizing plant (3) is that boiler in drying unit (2) provides heat supply coal dust by pipeline,
The structure of described fuel pulverizing plant (3) is: comprise screw-type coal distributor (8), coal pulverizer (9), cloth bag collection machine, conveying worm, the second bucket elevator and Pulverized Coal Bin (10), described drying unit (2) is connected with coal pulverizer (9) by screw-type coal distributor (8), coal cinder after drying is delivered to coal pulverizer (9) and carries out abrasive dust, the outlet of described coal pulverizer (9) is connected with the entrance of cloth bag collection machine, the outlet of described cloth bag collection machine is connected with Pulverized Coal Bin (10) with the second bucket elevator by conveying worm, coal dust under cloth bag collection machine is collected is delivered into Pulverized Coal Bin (10) by conveying worm and the second bucket elevator.
2. a kind of circulation pulverized coal preparation system that is applied to middle-size and small-size industrial coal powder boiler according to claim 1, it is characterized in that: described coal pulverizer (9) top is provided with coal analysis machine, the coal dust that coal pulverizer (9) is ground selects powder to separate, meal returns in coal pulverizer (9) and continues abrasive dust, and qualified coal dust enters cloth bag collection machine and collects.
3. a kind of circulation pulverized coal preparation system that is applied to middle-size and small-size industrial coal powder boiler according to claim 1, it is characterized in that: described raw coal carries the structure of breaker (1) for comprising: indoor coal storage yard, ground reception bunker, oscillating feeder, rubber conveyer, disintegrating machine and the first belt feeder, described indoor coal storage yard is arranged on a side of ground reception bunker, raw coal adds ground reception bunker by coal pusher, the feed opening of described ground reception bunker is connected with the charging aperture of disintegrating machine with rubber conveyer by oscillating feeder, after being delivered to disintegrating machine, raw coal is broken for the coal cinder that granularity is different, the discharging opening of described disintegrating machine is connected with the entrance of drying unit (2) by the first belt feeder, coal cinder after fragmentation is delivered in drying unit (2) and carries out heating, drying.
4. a kind of circulation pulverized coal preparation system that is applied to middle-size and small-size industrial coal powder boiler according to claim 3, is characterized in that: the top of described the first belt feeder is provided with permanent-magnetic iron expeller, and the ironware in coal cinder is removed.
5. a kind of circulation pulverized coal preparation system that is applied to middle-size and small-size industrial coal powder boiler according to claim 1, it is characterized in that: the structure of described drying unit (2) is: comprise drying kiln (5), the second belt feeder, the first bucket elevator (6), run coal bin (7) and star-like discharger, the discharging opening of described drying kiln (5) is connected with the charging aperture of run coal bin (7) with the first bucket elevator (6) by the second belt feeder, the coal cinder of drying in drying kiln (5) is delivered in run coal bin (7) through the second belt feeder and the first bucket elevator (6), the discharging opening of described run coal bin (7) is connected with the entrance of fuel pulverizing plant (3) by star-like discharger, coal cinder in run coal bin (7) is delivered to fuel pulverizing plant (3) through star-like discharger and carries out powder process.
6. a kind of circulation pulverized coal preparation system that is applied to middle-size and small-size industrial coal powder boiler according to claim 5, it is characterized in that: the mouth that enters of described drying kiln (5) is provided with hot combustion gas furnace (4), the exhaust opening of described drying kiln (5) is connected with chimney (12) by deduster (11), on the furnace wall of described hot combustion gas furnace (4), be provided with air blast, the required oxygen of coal dust completing combustion in hot combustion gas furnace (4) is blasted in body of heater through air channel, burner hearth outer ring, on the connecting line between described deduster (11) and chimney (12), be provided with air-introduced machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320815545.9U CN203731459U (en) | 2013-12-13 | 2013-12-13 | A circulating pulverizing system applied to a small- and medium-size industrial pulverized coal boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320815545.9U CN203731459U (en) | 2013-12-13 | 2013-12-13 | A circulating pulverizing system applied to a small- and medium-size industrial pulverized coal boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203731459U true CN203731459U (en) | 2014-07-23 |
Family
ID=51201528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320815545.9U Expired - Fee Related CN203731459U (en) | 2013-12-13 | 2013-12-13 | A circulating pulverizing system applied to a small- and medium-size industrial pulverized coal boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203731459U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712226A (en) * | 2013-12-13 | 2014-04-09 | 山西蓝天环保设备有限公司 | Circulatory coal pulverizing system applied to small-and medium-sized pulverized-coal industry boilers |
| CN107233989A (en) * | 2017-07-10 | 2017-10-10 | 佛山市新祖陶瓷科技有限公司 | One kind dries the integrated Coal-disintegrating machine of mill torch firing |
| CN110404650A (en) * | 2019-07-04 | 2019-11-05 | 国能绿色能源股份有限公司 | A kind of safe and efficient coal mill system and its method for preparing lignite |
-
2013
- 2013-12-13 CN CN201320815545.9U patent/CN203731459U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712226A (en) * | 2013-12-13 | 2014-04-09 | 山西蓝天环保设备有限公司 | Circulatory coal pulverizing system applied to small-and medium-sized pulverized-coal industry boilers |
| CN107233989A (en) * | 2017-07-10 | 2017-10-10 | 佛山市新祖陶瓷科技有限公司 | One kind dries the integrated Coal-disintegrating machine of mill torch firing |
| CN107233989B (en) * | 2017-07-10 | 2023-09-22 | 佛山市新祖陶瓷科技有限公司 | Baking, grinding, spraying and burning integrated coal powder machine |
| CN110404650A (en) * | 2019-07-04 | 2019-11-05 | 国能绿色能源股份有限公司 | A kind of safe and efficient coal mill system and its method for preparing lignite |
| CN110404650B (en) * | 2019-07-04 | 2021-04-27 | 国能绿色能源股份有限公司 | Coal grinding system and method for safely and efficiently preparing lignite |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101761933B (en) | Low-temperature furnace smoke sucking exhaust gas and hot air drying composite powder feeding bituminous coal and meagre coal universal type powder preparing system | |
| CN203731458U (en) | A pulverizing system applied to a small- and medium-size industrial pulverized coal boiler | |
| CN102889609B (en) | Smoke drying steel ball brown-coal milling system | |
| CN106196134B (en) | A kind of fume afterheat energy conservation and environmental protection coal dust preparation system | |
| CN203687076U (en) | Intermediate storage type hot primary air heat exchanging type returned pulverized coal milling and coal pulverizing system of coal fired boiler | |
| CN201666719U (en) | Coal dust hot-air furnace system of spray dryer | |
| CN109959023A (en) | It is a kind of using furnace cigarette as the unit pulverized-coal system of dried medium and method | |
| CN103712225A (en) | Coal pulverizing system applied to small-and medium-sized pulverized-coal industry boilers | |
| CN103712226B (en) | It is applied to the circulation pulverized coal preparation system of middle-size and small-size industrial coal powder boiler | |
| CN208475369U (en) | Coal-burning boiler pulverized coal preparation system | |
| CN102889606A (en) | Direct fired pulverizing system of smoke pre-drying lignite steel ball mill | |
| CN203731459U (en) | A circulating pulverizing system applied to a small- and medium-size industrial pulverized coal boiler | |
| CN204240348U (en) | Superheat steam drying powder process type coal-burning boiler unit and electricity generation system | |
| CN100422638C (en) | Little oil ignition method for circulating fluidized-bed boiler | |
| CN107013907A (en) | A kind of pulverized-coal fired boiler waste heat from tail gas for pulverized coal preparation utilizes system | |
| CN207563059U (en) | A kind of coal dust preparation system | |
| CN104197362A (en) | Fume-dried closed pulverization coal-fired boiler unit with function of exhaust water recovery | |
| CN107233989B (en) | Baking, grinding, spraying and burning integrated coal powder machine | |
| CN203718753U (en) | Composite combustion device | |
| CN203549845U (en) | Grate-fired furnace co-processing dangerous waste burning system | |
| CN209688813U (en) | Couple the integral type chain furnace of coal dust gasification and burning | |
| CN208269617U (en) | A kind of energy-saving and environment-friendly scale grain heat-drying complexes | |
| CN102095254B (en) | Organic heat carrier boiler of fluidized bed, with low cost, environment protection, energy saving and emission reduction | |
| CN211316908U (en) | Drying equipment for drying biomass crude wet fuel by using boiler exhaust smoke waste heat | |
| CN201754021U (en) | Special pulverized coal combustion system for drying coal slime and brown coal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140723 Termination date: 20151213 |
|
| EXPY | Termination of patent right or utility model |