CN103791608B - The special heat smoke producer of brown coal coal dust - Google Patents
The special heat smoke producer of brown coal coal dust Download PDFInfo
- Publication number
- CN103791608B CN103791608B CN201210429649.6A CN201210429649A CN103791608B CN 103791608 B CN103791608 B CN 103791608B CN 201210429649 A CN201210429649 A CN 201210429649A CN 103791608 B CN103791608 B CN 103791608B
- Authority
- CN
- China
- Prior art keywords
- coal dust
- heater
- coal
- heat smoke
- double
- 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
Landscapes
- Air Supply (AREA)
Abstract
The present invention relates to a kind of coal dust heat smoke producer, the special heat smoke producer of a kind of brown coal coal dust.Including body of heater and double-cyclone coal dust burner, wherein the inside of body of heater is divided into high temperature combustion zone and low-temperature burning district, one end body of heater of described high temperature combustion zone is provided with double-cyclone coal dust burner, described double-cyclone coal dust burner is provided with coal dust import and air inlet, and the sidewall of the furnace body of described high temperature combustion zone is provided with fire hole；The one end in described low-temperature burning district is provided with exhanst gas outlet, and the inside in described low-temperature burning district is provided with firebreak；The body of heater both sides in described high temperature combustion zone and low-temperature burning district are equipped with air distribution outlet and shoot door.The present invention utilizes the coal dust firing that calorific value is low, ash is high, granularity is fine and bulk density is little to produce the coal dust storage problem that heat smoke solution brown coal transformation dryness is separated, and exports air and the heat smoke of flue gas mixing of 300 DEG C 900 DEG C through settling analysis ash and air distribution mixing simultaneously.
Description
Technical field
The present invention relates to a kind of coal dust heat smoke producer, the special heat of a kind of brown coal coal dust
Fume generating furnace.
Background technology
For in brown coal transformation dryness production process, the coal dust of its drying system gas-solid separating device output,
There is presently no preferable processing method.Owing to this coal powder fraction is high, calorific capacity is low, granularity is little, heap
Long-pending density is little, be insoluble in water, molding is difficult, and burning-point is low, packs easy spontaneous combustion, dissipate fly upward big, it is difficult to
Storage, easily forms the secondary pollution to environment and causes the wasting of resources.At gas-solid separating device and coal dust
In storehouse all can not long-term storage, in these containers, natural storage will spontaneous combustion, it is necessary to isolation air or and
Time discharge, cannot process because its yield is big simultaneously, form one of brown coal transformation dryness process and be difficult to gram
The difficult point of clothes.Because brown coal transformation dryness process is convective drying, it is desirable to provide a large amount of heat smoke are as being dried
Medium is for evaporating the moisture in brown coal, and general employing thermal coal burning produces heat smoke, because brown coal process
Amount is big, and the exhaust gas volumn of needs is big, so energy consumption is very big, thermal coal consumption is the biggest.If can profit
The coal dust firing fine by the calorific value low ash high granularity of drying system production process generation provides heat smoke,
Both solve coal dust and be difficult to the problem of storage, save again the consumption of thermal coal.Brown coal transformation dryness separates
Coal dust out is different from the coal dust of general coal pulverizer output, even the coal ground with the brown coal before being dried
Powder, due to granularity, bulk density, the difference of ash, uses conventional coal dust heat smoke producer burning
This kind of coal dust, to ensure quantity of heat given up, melts existing because the restriction of body of heater volume and ignition temperature there will be ash
As, will soon result in blockage, if wanting to ensure that body of heater burning is normal, coal dust consumption can only be reduced and sacrifice volume
Determine quantity of heat given up, reduce the heat smoke amount of output, therefore can not be suitable for.
Summary of the invention
For the problems referred to above, the special heat smoke that it is an object of the invention to provide a kind of brown coal coal dust occurs
Stove.The special heat smoke producer of this brown coal coal dust utilizes that calorific value is low, ash is high, granularity is fine and piles up
The coal dust firing that density is little produces heat smoke and solves the coal dust storage problem that brown coal drying is separated, simultaneously
Coal dust heat smoke producer exports air and the cigarette of 300 DEG C-900 DEG C after sedimentation analysis ash and air distribution mix
The heat smoke of gas mixing.
To achieve these goals, the present invention is by the following technical solutions:
The special heat smoke producer of brown coal coal dust, including body of heater and double-cyclone coal dust burner, wherein body of heater
Inside be divided into high temperature combustion zone and low-temperature burning district, one end of described high temperature combustion zone body of heater to be provided with bispin
Stream coal dust burner, described double-cyclone coal dust burner is provided with coal dust import and air inlet, described high-temp combustion
The sidewall of the furnace body in district is provided with fire hole；One end of described low-temperature burning district body of heater is provided with exhanst gas outlet, institute
The inside stating low-temperature burning district is provided with firebreak；The body of heater both sides in described high temperature combustion zone and low-temperature burning district
It is equipped with air distribution outlet and shoot door.
Described double-cyclone coal dust burner is positioned at the middle and upper part of body of heater one end, high temperature combustion zone, described double-cyclone coal
One end of powder burner is stretched in burner hearth, and the other end is placed in the outside of body of heater, described coal dust import and air inlet
It is located at the installing hole of the other end of double-cyclone coal dust burner, described double-cyclone coal dust burner and body of heater circumferentially
Radially leave gap.
Described firebreak is parallel to the furnace body wall being provided with exhanst gas outlet, the upper end of firebreak and low-temperature burning district
Inboard wall of furnace body between leave exhaust gases passes, the spout of described double-cyclone coal dust burner and the distance of firebreak
For 6.5-7m, described double-cyclone coal dust burner stretches into a length of 100mm in burner hearth.Described double-cyclone coal dust
Burner is two and is symmetricly set on one end body of heater of high temperature combustion zone.Described double-cyclone coal dust burner
Lower section be provided with bellows, described bellows have multiple inflatable mouth along body of heater width is uniform.
The sidewall of the furnace body in described high temperature combustion zone and low-temperature burning district is provided with temperature sensor.Described air distribution
The butterfly valve controlling air distribution amount it is provided with outside the body of heater of mouth.Described high temperature combustion zone and the top in low-temperature burning district
It is arch.
Described air inlet includes an air inlet and secondary air inlet, and wherein an air inlet is located at described double
The end of rotational flow coal dust burner, described secondary air inlet is arranged near body of heater, and described coal dust import is positioned at one
Between secondary air inlet and secondary air inlet.
The both sides, top of described exhanst gas outlet arrange two venting of dust explosion mouths.
Advantages of the present invention and providing the benefit that:
1. the present invention utilizes the coal dust firing that calorific value is low, ash is high, granularity is fine and bulk density is little to produce
Heat smoke solves the coal dust storage problem that brown coal drying is separated.
2. present invention air and flue gas of output 300 DEG C-900 DEG C after settling analysis ash and air distribution mixing mixes
The heat smoke closed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is A-A sectional view in Fig. 1；
Fig. 3 is the A direction view of Fig. 1；
Fig. 4 is C-C sectional view in Fig. 1；
Fig. 5 is B-B sectional view in Fig. 1；
Wherein: 1 is double-cyclone coal dust burner, and 2 is bellows, and 3 is observation port, and 4 is sensor, and 5 is a little
Fire hole, 6 is air distribution outlet, and 7 is shoot door, and 8 is exhanst gas outlet, and 9 is inflatable mouth, and 10 is cold wind import,
11 is coal dust import, and 12 is an air inlet, and 13 is secondary air inlet, and 14 is firebreak, and 15 is high
Temperature combustion zone, 16 is low-temperature burning district, and 17 is butterfly valve.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
As Figure 1-5, the present invention includes body of heater and double-cyclone coal dust burner 1, the wherein interior part of body of heater
For high temperature combustion zone 15 and low-temperature burning district 16, the middle and upper part of body of heater one end of high temperature combustion zone 15 is symmetrical
Being provided with two double-cyclone coal dust burners 1, one end of each double-cyclone coal dust burner 1 is stretched in burner hearth, double-cyclone
Coal dust burner 1 stretches into a length of 100mm in burner hearth.The other end of each double-cyclone coal dust burner 1 is placed in stove
The outside of body, the installing hole of two double-cyclone coal dust burners 1 and body of heater circumferentially radially all leaves gap,
Due to combustion chamber draft effect, can be the most combustion-supporting with entering part surrounding air.Double-cyclone coal dust burner 1
The other end is provided with 11, air inlet 12 of coal dust import and secondary air inlet 13, a wherein air inlet
12 ends being located at double-cyclone coal dust burner 1 are the most coaxial with double-cyclone coal dust burner 1, secondary air inlet
13 is vertical with the axis of double-cyclone coal dust burner 1 near body of heater setting and axis.Coal dust import 11 sets
Between an air inlet 12 and secondary air inlet 13.The lower section of two double-cyclone coal dust burners 1 is provided with
Bellows 2, bellows 2 have multiple inflatable mouth 9 along body of heater width is uniform, are reduced by bottom blowing
High-temperature region ignition temperature, it is ensured that do not produce ash molten.The sidewall of the furnace body of high temperature combustion zone 15 is provided with fire hole
5；One end body of heater in low-temperature burning district 16 is provided with exhanst gas outlet 8, and the both sides, top of exhanst gas outlet 8 are arranged
Two venting of dust explosion mouths, preventing does not lights a fire, and the dust storm under fortuitous event such as dust occurs.Low-temperature burning district 16 interior
Portion, the furnace body wall being parallel to be provided with exhanst gas outlet 8 is provided with firebreak 14.The spray of double-cyclone coal dust burner 1
Mouth is 6.5-7m with the distance of firebreak 14, beneficially the soot particle sedimentation in pulverized coal particle afterburnt.Bellows simultaneously
The ash purging of after-flame is convenient to clean near firebreak 14 by 2.High temperature combustion zone 15 and low-temperature burning district
The body of heater both sides of 16 are equipped with air distribution outlet 6, are provided with the butterfly valve controlling air distribution amount outside the body of heater of air distribution outlet 6
17.It is respectively provided with temperature sensor 4, high temperature in high temperature combustion zone 15 and body of heater both sides, low-temperature burning district 16
Temperature in combustion zone 15 controls below 1050 DEG C, and the temperature in low-temperature burning district 16 is adjusted by butterfly valve 17
Whole air distribution amount, regulation output pathogenic wind-warm.High temperature combustion zone 15 and low-temperature burning district 16 body of heater two side bottom set
Put shoot door 7, can manual ash discharge.The roof of the furnace in high temperature combustion zone 15 and low-temperature burning district 16 is arch
Shape, the heat reflection at arched hearth top reduces radiation loss.Furnace volume determines according to volume thermic load,
Volume thermic load takes 13 × 104kcal/m3-14×104kcal/m3, it is ensured that coal dust consumption also ensures rated heat
Output.
The operation principle of the present invention is:
When the present invention works, the coal dust that calorific value is low, ash is high, granularity is fine and bulk density is little is by coal dust
Import 11 at the uniform velocity adds, coal dust the strength of First air carry secretly with the drive of secondary rotating wind under by double-cyclone
Coal dust burner 1 sprays, and due to the flame interaction in fire hole 5, is formed continuously in high temperature combustion zone 15
Spray combustion.Owing to coal dust is fine, base before pulverized coal particle firebreak 14 in low-temperature burning district 16
This after-flame also settles down, and the most a small amount of unburnt coal dust Mars enters the rear space combustion of firebreak 14
Settling after Jin, whole heat smoke producer is interior is-100Pa-500Pa for negative pressure.By adjusting high-temp combustion
The cold wind purging of the air distribution amount in district 15 and the blowing mouth 9 of bottom bellows 2, regulating stove chamber inner combustion temperature is low
In 1050 DEG C, it is ensured that it is molten that burner hearth does not produce ash；Output is guaranteed by the air distribution amount in regulation low-temperature burning district 16
The temperature of heat smoke, heat outputting flue-gas temperature is at 300 DEG C-900 DEG C, and air distribution amount is regulated by butterfly valve 17.
Claims (10)
1. the special heat smoke producer of a brown coal coal dust, it is characterised in that: include body of heater and double-cyclone
Coal dust burner (1), wherein the inside of body of heater is divided into high temperature combustion zone (15) and low-temperature burning district (16),
One end of described high temperature combustion zone (15) body of heater is provided with double-cyclone coal dust burner (1), described double-cyclone coal
Powder burner (1) is provided with coal dust import (11) and air inlet, the body of heater of described high temperature combustion zone (15)
Sidewall is provided with fire hole (5)；One end of described low-temperature burning district (16) body of heater is provided with exhanst gas outlet (8),
The inside of described low-temperature burning district (16) is provided with firebreak (14)；Described high temperature combustion zone (15) and low
The body of heater both sides of temperature combustion zone (16) are equipped with air distribution outlet (6) and shoot door (7).
2. the special heat smoke producer of the brown coal coal dust as described in claim 1, it is characterised in that: institute
State double-cyclone coal dust burner (1) and be positioned at the middle and upper part of high temperature combustion zone (15) body of heater one end, described bispin
One end of stream coal dust burner (1) is stretched in burner hearth, and the other end is placed in the outside of body of heater, described coal dust import
And air inlet is located at the other end of double-cyclone coal dust burner (1), described double-cyclone coal dust burner (1) (11)
Circumferentially radially gap is left with the installing hole of body of heater.
3. the special heat smoke producer of the brown coal coal dust as described in claim 2, it is characterised in that: institute
State firebreak (14) and be parallel to be provided with the furnace body wall of exhanst gas outlet (8), the upper end of firebreak (14) with
Exhaust gases passes, described double-cyclone coal dust burner (1) is left between the inboard wall of furnace body in low-temperature burning district (16)
The distance of spout and firebreak (14) be 6.5-7m, described double-cyclone coal dust burner (1) stretches into burner hearth
Interior a length of 100mm.
4. the special heat smoke producer of the brown coal coal dust as described in any one of claim 1-3, its feature
It is: described double-cyclone coal dust burner (1) is two and is symmetricly set on high temperature combustion zone (15)
On the body of heater of one end.
5. the special heat smoke producer of the brown coal coal dust as described in claim 1, it is characterised in that: institute
The lower section stating double-cyclone coal dust burner (1) is provided with bellows (2), along body of heater width on described bellows (2)
Direction is uniform has multiple inflatable mouth (9).
6. the special heat smoke producer of the brown coal coal dust as described in claim 1, it is characterised in that: institute
The sidewall of the furnace body stating high temperature combustion zone (15) and low-temperature burning district (16) is provided with temperature sensor (4).
7. the special heat smoke producer of the brown coal coal dust as described in claim 1, it is characterised in that: institute
State and outside the body of heater of air distribution outlet (6), be provided with the butterfly valve (17) controlling air distribution amount.
8. the special heat smoke producer of the brown coal coal dust as described in claim 1, it is characterised in that: institute
The top stating high temperature combustion zone (15) and low-temperature burning district (16) is arch.
9. the special heat smoke producer of the brown coal coal dust as described in claim 1 or 2, it is characterised in that:
Described air inlet includes an air inlet (12) and secondary air inlet (13), wherein an air inlet (12)
Being located at the end of described double-cyclone coal dust burner (1), described secondary air inlet (13) is arranged near body of heater,
Described coal dust import (11) is positioned between an air inlet (12) and secondary air inlet (13).
10. the special heat smoke producer of the brown coal coal dust as described in claim 1, it is characterised in that: institute
The both sides, top stating exhanst gas outlet (8) arrange two venting of dust explosion mouths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210429649.6A CN103791608B (en) | 2012-10-31 | 2012-10-31 | The special heat smoke producer of brown coal coal dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210429649.6A CN103791608B (en) | 2012-10-31 | 2012-10-31 | The special heat smoke producer of brown coal coal dust |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103791608A CN103791608A (en) | 2014-05-14 |
| CN103791608B true CN103791608B (en) | 2016-11-23 |
Family
ID=50667513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210429649.6A Expired - Fee Related CN103791608B (en) | 2012-10-31 | 2012-10-31 | The special heat smoke producer of brown coal coal dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103791608B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016731A (en) * | 2016-07-12 | 2016-10-12 | 大连惠川环保科技有限公司 | Automatically-controlled hot blast stove |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001201044A (en) * | 2000-01-14 | 2001-07-27 | Ishikawajima Harima Heavy Ind Co Ltd | Pulverized coal combustion equipment |
| CN2748784Y (en) * | 2004-10-10 | 2005-12-28 | 张香梅 | Four channel dense and thin cyclone coal dust combustor |
| JP2007309607A (en) * | 2006-05-19 | 2007-11-29 | Ihi Corp | Burner equipment for pulverized coal combustion |
| CN201322439Y (en) * | 2008-12-24 | 2009-10-07 | 大唐国际化工技术研究院有限公司 | Pulverized-coal burnt horizontal-type hot fume generating furnace |
| CN101650073A (en) * | 2009-07-11 | 2010-02-17 | 盛文业 | Baffled hot-blast stove |
| CN202938499U (en) * | 2012-10-31 | 2013-05-15 | 辽宁绿地能源煤业有限公司 | Special hot flue gas generator for brown coal powder |
-
2012
- 2012-10-31 CN CN201210429649.6A patent/CN103791608B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001201044A (en) * | 2000-01-14 | 2001-07-27 | Ishikawajima Harima Heavy Ind Co Ltd | Pulverized coal combustion equipment |
| CN2748784Y (en) * | 2004-10-10 | 2005-12-28 | 张香梅 | Four channel dense and thin cyclone coal dust combustor |
| JP2007309607A (en) * | 2006-05-19 | 2007-11-29 | Ihi Corp | Burner equipment for pulverized coal combustion |
| CN201322439Y (en) * | 2008-12-24 | 2009-10-07 | 大唐国际化工技术研究院有限公司 | Pulverized-coal burnt horizontal-type hot fume generating furnace |
| CN101650073A (en) * | 2009-07-11 | 2010-02-17 | 盛文业 | Baffled hot-blast stove |
| CN202938499U (en) * | 2012-10-31 | 2013-05-15 | 辽宁绿地能源煤业有限公司 | Special hot flue gas generator for brown coal powder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103791608A (en) | 2014-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9091432B2 (en) | Biomass fuel internal circulation mechanical fluidized-bed corner tube intelligent boiler | |
| CN203517771U (en) | Middle-temperature separating circulating fluidized bed boiler applicable to combusting high-sodium coal | |
| CN208154485U (en) | A kind of Secondary Air optimization system of waste incinerator | |
| CN101476719B (en) | Combustion device for staggered arrangement of thick and thin pulverized coal flow on W-shaped flame furnace | |
| CN106196044B (en) | Low NO is set at a kind of bottom suitable for significantly load adjustment | |
| CN201606876U (en) | Low-NOx coal burner | |
| CN206037029U (en) | Low NOx burner is put at end suitable for load adjustment by a wide margin | |
| CN102012038A (en) | Air distribution system of biomass moulding fuel boiler | |
| CN101545639A (en) | Method for adjusting combustion of W flame furnace by changing quantity of oil secondary air | |
| CN205014343U (en) | W flame boiler | |
| CN103148477B (en) | One is threaded into powder formula burner for pulverized coal | |
| CN202938499U (en) | Special hot flue gas generator for brown coal powder | |
| CN103940080B (en) | Based on the middle temperature low oxygen content hot-blast stove of coal dust low oxygen combustion technology | |
| CN204254603U (en) | CFBB low nitrogen burning system | |
| CN202898353U (en) | Biomass gasifying system | |
| CN206739287U (en) | An external combustion chamber type deep peak-shaving combustion system | |
| CN105258113A (en) | Low-heating-value liquid and solid fluidized bed boiler and combustion technology | |
| CN102031151B (en) | Anti-clogging biomass gasification combustor | |
| CN103791608A (en) | Special hot flue gas generator for pulverized lignite | |
| CN203249237U (en) | A kind of screw into pulverized coal burner | |
| CN104848544B (en) | A kind of liquid medium heat conducting furnace for revolving floating burning | |
| CN202521589U (en) | Horizontally-blown heat energy generator for solid fuels | |
| CN203744247U (en) | Spiral pulverized coal inlet center-backdraught type pulverized coal gasification burner | |
| CN101806452A (en) | Micro oil content ignition coal powder burner capable of improving initial ignition heat | |
| CN102393069B (en) | A gas-solid mixed combustion hot blast stove with double towers and double furnaces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20161123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |