CN105605607B - Multistage duct type coal burner - Google Patents
Multistage duct type coal burner Download PDFInfo
- Publication number
- CN105605607B CN105605607B CN201610119821.6A CN201610119821A CN105605607B CN 105605607 B CN105605607 B CN 105605607B CN 201610119821 A CN201610119821 A CN 201610119821A CN 105605607 B CN105605607 B CN 105605607B
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- CN
- China
- Prior art keywords
- combustion
- pipe
- fan
- pipeline
- primary
- 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.)
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- 239000003245 coal Substances 0.000 title claims abstract description 19
- 238000002485 combustion reaction Methods 0.000 claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims 1
- 239000002817 coal dust Substances 0.000 abstract description 20
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 4
- 239000010883 coal ash Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
Abstract
The invention discloses a kind of multistage duct type coal burners, it includes controller and several pipeline combustion mechanisms, controller is connect with the dosing pump of pipeline combustion mechanism, primary air fan, combustion fan, gas monitoring instrument respectively, and controller controls the feeding coal of dosing pump and the air output of primary air fan and combustion fan.Advantage：The tail gas of each pipeline combustion mechanism is monitored by gas monitoring instrument, and monitoring result is transferred to controller, and then realizes that the precision to each pipeline combustion mechanism controls by controller；Burner hearth is substituted with multiple pipeline combustion mechanisms, on the one hand, coal dust can be promoted to be sufficiently mixed burning with air, the utilization rate of coal dust is improved, the burn-off rate of coal dust is made to reach 98% or more；On the other hand, heat utilization efficiency can be improved, combustion conduit interior temperature is effectively reduced, and then fouling is inhibited to be formed, reduces the generation of oxynitrides, reduce environmental pollution.
Description
Technical field：
The present invention relates to a kind of coal burners, relate in particular to a kind of multistage duct type coal burner.
Background technology
Existing coal powder burner is mostly that coal dust is sprayed into burner hearth by nozzle, then lights burner hearth using igniter
Interior breeze airflow.In coal dust firing, temperature reaches 900 DEG C or more in burner hearth, will produce a large amount of oxynitrides, pollutes ring
Border；And since burner hearth inner space is larger, on the one hand, the coal dust in burner hearth can be caused to be unevenly distributed, burn insufficient, had
Part coal dust is exhausted with flue gas, causes the waste of coal dust, pollutes air, on the other hand, hearth wall heat dissipation area and hearth body
Product is smaller, causes radiation of burner hearth heat utilization efficiency low, causes the waste of the energy, and the hot environment in burner hearth can cause coal ash
Melting, shows to form fouling in burner hearth, influences radiation of burner hearth heat and distributes outward.
Invention content：
Coal dust can be made fully to burn, improve the multistage duct type of efficiency of utilization the purpose of the present invention is to provide a kind of
Coal burner.
The present invention is implemented by following technical solution：Multistage duct type coal burner comprising controller and several pipes
Road combustion mechanism, controller dosing pump, primary air fan, combustion fan, the gas with the pipeline combustion mechanism respectively
Body monitor connect, the controller control the dosing pump feeding coal and the primary air fan with the combustion air
The air output of machine.
Further, the pipeline combustion mechanism include the dosing pump, primary combustion pipe, the primary air fan,
Igniter, combustion-supporting chamber, the combustion fan, second-time burning pipe, overfire air fan, the gas monitoring instrument, the dosing pump,
The primary combustion pipe, the combustion-supporting chamber, the second-time burning pipe are sequentially connected according to material conveying direction；In the primary combustion
It burns pipe feed end and is equipped with the igniter, the air outlet of the primary air fan is connected to the primary combustion pipe feed end；It is described
It is connected to inside the exhaust outlet of combustion fan and the combustion-supporting chamber；It is equipped with the gas monitoring instrument in second-time burning pipe tail portion,
The air outlet of the overfire air fan is connected to the second-time burning pipe feed end.
Further, it is internally provided with conical nozzle in the primary combustion pipe discharge end, the combustion-supporting chamber.
Further, the pipeline combustion mechanism further include two heat-exchanger rigs and with each heat-exchanger rig water inlet
It is connected to the water pump of setting, the heat-exchanger rig, institute are arranged in the outside of the primary combustion pipe and the second-time burning pipe
The water inlet for stating heat-exchanger rig is connected to by pipeline with the water outlet of the corresponding water pump；The water pump connects with the controller
It connects, the controller controls the working frequency of the water pump.
Advantages of the present invention：The tail gas of each pipeline combustion mechanism is monitored by gas monitoring instrument, and will monitoring
As a result it is transferred to controller, and then realizes that the precision to each pipeline combustion mechanism controls by controller；With multiple pipelines
Combustion mechanism substitutes burner hearth, on the one hand, coal dust can be promoted to be sufficiently mixed burning with air, the utilization rate of coal dust is improved, make coal
The burn-off rate of powder reaches 98% or more；On the other hand, pipeline combustion mechanism heat dissipation area and pipeline combustion mechanism body can be increased
Long-pending ratio, and then the radiant heat of pipeline combustion mechanism is made fully to distribute, heat utilization efficiency is improved, combustion conduit interior temperature is effectively reduced
Degree；In addition, by controller control heat-exchanger rig coal dust low-temperature burning may be implemented, by ignition temperature control coal ash fusion temperature with
Under, and then fouling is inhibited to be formed, ensure the heat-radiating properties of pipeline combustion mechanism, meanwhile, temperature control is being generated into nitrogen oxidation
The critical-temperature of object is closed hereinafter, reducing the generation of oxynitrides, reduces environmental pollution.
Description of the drawings：
Fig. 1 is the overall structure diagram of embodiment 1.
Fig. 2 is 1 controller connection diagram of embodiment.
Fig. 3 is the overall structure diagram of embodiment 2.
Fig. 4 is 2 controller connection diagram of embodiment.
Controller 1, pipeline combustion mechanism 2, dosing pump 21, primary combustion pipe 22, primary air fan 23, igniter 24,
Combustion-supporting chamber 25, combustion fan 26, second-time burning pipe 27, overfire air fan 28, gas monitoring instrument 29, heat-exchanger rig 210, water pump 211,
Conical nozzle 212.
Specific implementation mode：
Embodiment 1：As depicted in figs. 1 and 2, multistage duct type coal burner comprising controller 1 and two pipelines
The feed inlet of the dosing pump 21 of each pipeline combustion mechanism 2 is passed through pipeline when use and connected with pulverized coal bin by combustion mechanism 2
It is logical, 27 tail portion of second-time burning pipe of each pipeline combustion mechanism 2 is connect with heat-exchanger rig, tailing purification collection device successively；
Dosing pump 21 can be pumped into the coal dust in pulverized coal bin is quantitative in primary combustion pipe 22；Pipeline combustion mechanism 2 includes
Dosing pump 21, primary combustion pipe 22, primary air fan 23, igniter 24, combustion-supporting chamber 25, combustion fan 26, second-time burning pipe
27, overfire air fan 28, gas monitoring instrument 29, dosing pump 21, primary combustion pipe 22, combustion-supporting chamber 25, second-time burning pipe 27 are pressed
It is sequentially connected according to material conveying direction；The air outlet of primary air fan 23 is connected to 22 feed end of primary combustion pipe, primary air fan 23
Air is sent into primary combustion pipe 22, and then air is made to be sufficiently mixed with the coal dust being discharged by dosing pump 21, forms coal dust
Air-flow；It is equipped with igniter 24 in 22 feed end of primary combustion pipe, igniter 24 will be lighted with the breeze airflow in this combustion pipe；
It is internally provided with conical nozzle 212 in 22 discharge end of primary combustion pipe, combustion-supporting chamber 25, conical nozzle 212 can make the coal dust gas of burning
Spray into combustion-supporting chamber 25 in adfluxion, be connected to inside the exhaust outlet of combustion fan 26 and combustion-supporting chamber 25, combustion fan 26 can in time by
Air fills into combustion-supporting chamber 25, and then coal dust is promoted fully to burn, and improves the utilization rate of coal dust, and the burn-off rate of coal dust is made to reach 98%
More than；The air outlet of overfire air fan 28 is connected to 27 feed end of second-time burning pipe, and overfire air fan 28 can be by second-time burning pipe 27
Interior tail gas is sequentially sent in heat-exchanger rig and tailing purification collection device, and heat-exchanger rig can absorb the heat carried in tail gas,
Heat utilization ratio is improved, tailing purification collection device can purify the dust particles collected and carried in tail gas, and cleaning of off-gas prevents ring
It pollutes in border；It is equipped with gas monitoring instrument 29, the dosing pump of controller 1 and pipeline combustion mechanism 2 in 27 tail portion of second-time burning pipe
21, primary air fan 23, combustion fan 26, gas monitoring instrument 29 connect, and controller 1 controls the feeding coal and one of dosing pump 21
The air output of secondary wind turbine 23 and combustion fan 26；By gas monitoring instrument 29 to that can realize to each pipeline combustion mechanism 2
Tail gas is monitored in real time, and monitoring result is transferred to controller 1, and then is realized by controller 1 and burnt to each pipeline
The precision control of the feed pump 21, primary air fan 23, combustion fan 26 of mechanism 2.
Embodiment 2：As shown in Figure 3 and Figure 4, difference lies in pipeline combustion mechanism 2 further includes two and changes with embodiment 1
Thermal 210 and the water pump 211 that setting is connected to 210 water inlet of each heat-exchanger rig, in primary combustion pipe 22 and second-time burning
The outside of pipe 27 is arranged with heat-exchanger rig 210, the water outlet that the water inlet of heat-exchanger rig 210 passes through pipeline and corresponding water pump 211
Mouth connection；Water pump 211 is connect with controller 1, and controller 1 controls the working frequency of water pump 211；Heat-exchanger rig 210 can be abundant
The radiant heat of primary combustion pipe 22 and second-time burning pipe 27 is absorbed, efficiency of utilization is improved；It will once be fired by heat-exchanger rig 210
The portion's temperature control burnt in pipe 22 and second-time burning pipe 27 is generating the critical-temperature of oxynitrides hereinafter, avoiding generating nitrogen oxygen
Compound prevents environmental pollution；In addition, the low-temperature burning that coal dust may be implemented in heat-exchanger rig 210 is controlled by controller 1, it will
Ignition temperature control in coal ash fusion temperature hereinafter, in turn inhibit fouling formed, ensure the heat-radiating properties of burner.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (3)
1. multistage duct type coal burner, which is characterized in that it includes controller and several pipeline combustion mechanisms, the control
Device processed is connect with dosing pump, primary air fan, combustion fan, the gas monitoring instrument of the pipeline combustion mechanism respectively, described
Controller controls the feeding coal of the dosing pump and the air output of the primary air fan and the combustion fan；The pipeline
Combustion mechanism includes the dosing pump, primary combustion pipe, the primary air fan, igniter, combustion-supporting chamber, the combustion air
Machine, second-time burning pipe, overfire air fan, the gas monitoring instrument, it is the dosing pump, the primary combustion pipe, described combustion-supporting
Room, the second-time burning pipe are sequentially connected according to material conveying direction；It is equipped with the igniting in the primary combustion pipe feed end
Device, the air outlet of the primary air fan are connected to the primary combustion pipe feed end；The exhaust outlet of the combustion fan with it is described
Connection inside combustion-supporting chamber；Second-time burning pipe tail portion be equipped with the gas monitoring instrument, the air outlet of the overfire air fan with
The second-time burning pipe feed end connection.
2. multistage duct type coal burner according to claim 1, which is characterized in that discharge in the primary combustion pipe
End, the combustion-supporting chamber are internally provided with conical nozzle.
3. according to any multistage duct type coal burner of claims 1 or 2, which is characterized in that the pipeline burning
Mechanism further includes two heat-exchanger rigs and is connected to the water pump of setting with each heat-exchanger rig water inlet, in the primary combustion
The outside of pipe and the second-time burning pipe is arranged with the heat-exchanger rig, the water inlet of the heat-exchanger rig by pipeline with it is right
The water outlet of the water pump is answered to be connected to；The water pump is connect with the controller, and the controller controls the water pumping of the water pump
Amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610119821.6A CN105605607B (en) | 2016-03-02 | 2016-03-02 | Multistage duct type coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610119821.6A CN105605607B (en) | 2016-03-02 | 2016-03-02 | Multistage duct type coal burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105605607A CN105605607A (en) | 2016-05-25 |
| CN105605607B true CN105605607B (en) | 2018-09-21 |
Family
ID=55985765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610119821.6A Active CN105605607B (en) | 2016-03-02 | 2016-03-02 | Multistage duct type coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105605607B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749700A (en) * | 2010-03-04 | 2010-06-23 | 郑平安 | Pulverized coal furnace tiny-oil ignition combustion method |
| CN203024179U (en) * | 2012-11-23 | 2013-06-26 | 施正 | Intelligent control system of pulverized coal burner |
| CN204474622U (en) * | 2015-01-22 | 2015-07-15 | 福建兴源新能源科技有限公司 | A kind of novel biomass gas cleaning device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3873458B2 (en) * | 1998-05-26 | 2007-01-24 | 株式会社ノーリツ | Combustor with CO sensor |
| CN100572917C (en) * | 2007-07-27 | 2009-12-23 | 福建省丰泉环保设备有限公司 | The double-loop double-pyrogenation incinerator and the using method thereof that are used for rubbish processing to be harmless |
| CN202501457U (en) * | 2012-01-04 | 2012-10-24 | 泰安市利达热工设备有限公司 | Efficient clean-combustion multi-powder cyclone burner |
| JP5746646B2 (en) * | 2012-02-09 | 2015-07-08 | リンナイ株式会社 | Combined combustion device |
| WO2014149368A1 (en) * | 2013-03-15 | 2014-09-25 | Research Triangle Institute | Biomass combustion device with a thermoelectric-powered control |
| CN203364126U (en) * | 2013-06-03 | 2013-12-25 | 诸暨天立环保节能技术有限公司 | Efficient multivariant industrial boiler powder combustor |
| CN103672884A (en) * | 2013-12-27 | 2014-03-26 | 安其云 | Novel efficient low-nitrogen full-automatic pulverized coal burner |
| JP5920410B2 (en) * | 2014-07-08 | 2016-05-18 | 株式会社ノーリツ | Water heater |
| CN204574049U (en) * | 2015-02-17 | 2015-08-19 | 河南省豫园锅炉机电有限公司 | The burner of gas fired-boiler |
| CN205560829U (en) * | 2016-03-02 | 2016-09-07 | 内蒙古金土环保科技有限公司 | Multistage pipeline formula coal burner |
-
2016
- 2016-03-02 CN CN201610119821.6A patent/CN105605607B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749700A (en) * | 2010-03-04 | 2010-06-23 | 郑平安 | Pulverized coal furnace tiny-oil ignition combustion method |
| CN203024179U (en) * | 2012-11-23 | 2013-06-26 | 施正 | Intelligent control system of pulverized coal burner |
| CN204474622U (en) * | 2015-01-22 | 2015-07-15 | 福建兴源新能源科技有限公司 | A kind of novel biomass gas cleaning device |
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| Publication number | Publication date |
|---|---|
| CN105605607A (en) | 2016-05-25 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Multi-section pipeline type pulverized coal combustor Effective date of registration: 20190419 Granted publication date: 20180921 Pledgee: Zhungeer Banner Rural Credit Cooperative Pledgor: Inner Mongolia Jintu Environmental Protection Technology Co.,Ltd. Registration number: 2019150000006 |
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Date of cancellation: 20210408 Granted publication date: 20180921 Pledgee: Zhungeer Banner Rural Credit Cooperative Pledgor: Inner Mongolia Jintu Environmental Protection Technology Co.,Ltd. Registration number: 2019150000006 |
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Denomination of invention: Multi section pipe type pulverized coal burner Effective date of registration: 20210409 Granted publication date: 20180921 Pledgee: Zhungeer Banner Rural Credit Cooperative Pledgor: Inner Mongolia Jintu Environmental Protection Technology Co.,Ltd. Registration number: Y2021150000033 |
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Date of cancellation: 20220322 Granted publication date: 20180921 Pledgee: Zhungeer Banner Rural Credit Cooperative Pledgor: Inner Mongolia Jintu Environmental Protection Technology Co.,Ltd. Registration number: Y2021150000033 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Multi section pipe type pulverized coal burner Effective date of registration: 20220322 Granted publication date: 20180921 Pledgee: Zhungeer Banner Rural Credit Cooperative Pledgor: Inner Mongolia Jintu Environmental Protection Technology Co.,Ltd. Registration number: Y2022150000013 |
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Date of cancellation: 20230309 Granted publication date: 20180921 Pledgee: Zhungeer Banner Rural Credit Cooperative Pledgor: Inner Mongolia Jintu Environmental Protection Technology Co.,Ltd. Registration number: Y2022150000013 |
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Denomination of invention: Multi stage pipe type pulverized coal burner Effective date of registration: 20230313 Granted publication date: 20180921 Pledgee: Zhungeer Banner Rural Credit Cooperative Pledgor: Inner Mongolia Jintu Environmental Protection Technology Co.,Ltd. Registration number: Y2023150000035 |
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Granted publication date: 20180921 Pledgee: Zhungeer Banner Rural Credit Cooperative Pledgor: Inner Mongolia Jintu Environmental Protection Technology Co.,Ltd. Registration number: Y2023150000035 |