CN205560829U - Multistage pipeline formula coal burner - Google Patents
Multistage pipeline formula coal burner Download PDFInfo
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- CN205560829U CN205560829U CN201620161546.XU CN201620161546U CN205560829U CN 205560829 U CN205560829 U CN 205560829U CN 201620161546 U CN201620161546 U CN 201620161546U CN 205560829 U CN205560829 U CN 205560829U
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- combustion
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- pipe
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- fan
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Abstract
The utility model discloses a multistage pipeline formula coal burner, it includes controller and a plurality of pipeline burning mechanism, and the controller is connected with measurement delivery pump, primary air fan, burner blower, the gas monitoring instrument of pipeline burning mechanism respectively, and delivery pump, primary air fan, burner blower and gas monitoring instrument's frequency of operation is measured in controller control. The advantage: monitor the tail gas of every pipeline burning mechanism through gas monitoring instrument to transmit monitoring results to controller, and then realize the accurateization control to each pipeline burning mechanism through the controller, the mechanism substitutes furnace with the burning of a plurality of pipelines, on the one hand, can impel buggy and the abundant co -combustion of air, improves the utilization ratio of buggy, makes the burn -off rate of buggy reach more than 98%, on the other hand can improve the heat utilization efficiency, effectively reduces the inside temperature of burning pipeline, and then suppresses scale deposit formation, reduces oxynitrides's formation, reduce environmental pollution.
Description
Technical field:
This utility model relates to a kind of coal burner, relates in particular to a kind of multistage duct type coal burner.
Background technology
Existing coal powder burner is mostly, by nozzle, coal dust is sprayed into burner hearth, then utilizes lighter to light the breeze airflow in burner hearth.When coal dust firing, in burner hearth, temperature reaches more than 900 DEG C, can produce a large amount of oxynitride, pollutes environment；And owing to burner hearth inner space is bigger, on the one hand, can cause the coal dust skewness in burner hearth, burn insufficient, have part coal dust and drain along with flue gas, cause the waste of coal dust, contaminated air, on the other hand, hearth wall area of dissipation is smaller with furnace volume, cause radiation of burner hearth heat utilization efficiency low, cause the waste of the energy, and the hot environment in burner hearth can cause coal ash to melt, show to form fouling at burner hearth, affect radiation of burner hearth heat and outwards distribute.
Utility model content:
The purpose of this utility model is to provide a kind of can make coal dust fully burn, improve the multistage duct type coal burner of efficiency of utilization.
This utility model is implemented by following technical scheme: multistage duct type coal burner, it includes controller and several pipeline combustion mechanisms, described controller is connected with the dosing pump of described pipeline combustion mechanism, primary air fan, combustion fan, gas monitoring instrument respectively, and described controller controls the feeding coal of described dosing pump and described primary air fan with the air output with described combustion fan.
Further, described pipeline combustion mechanism includes that described dosing pump, primary combustion pipe, described primary air fan, lighter, combustion-supporting chamber, described combustion fan, second-time burning pipe, overfire air fan, described gas monitoring instrument, described dosing pump, described primary combustion pipe, described combustion-supporting chamber, described second-time burning pipe are sequentially connected with according to material conveying direction；Being provided with described lighter at described primary combustion pipe feed end, the air outlet of described primary air fan connects with described primary combustion pipe feed end；The exhaust outlet of described combustion fan is internal with described combustion-supporting chamber to be connected；Being provided with described gas monitoring instrument at described second-time burning pipe afterbody, the air outlet of described overfire air fan connects with described second-time burning pipe feed end.
Further, inside described primary combustion pipe discharge end, described combustion-supporting chamber, it is provided with conical nozzle.
Further, described pipeline combustion mechanism also includes two heat-exchanger rigs and connects the water pump arranged with each described heat-exchanger rig water inlet, all being arranged with described heat-exchanger rig in the outside of described primary combustion pipe and described second-time burning pipe, the water inlet of described heat-exchanger rig is connected with the outlet of corresponding described water pump by pipeline；Described water pump is connected with described controller, and described controller controls the operating frequency of described water pump.
Advantage of the present utility model: the tail gas of each pipeline combustion mechanism is monitored by gas monitoring instrument, and monitoring result is transferred to controller, and then realize the control of the precision to each pipeline combustion mechanism by controller；Burner hearth is substituted, on the one hand, coal dust and air can be promoted to be sufficiently mixed burning, improve the utilization rate of coal dust, make the burn-off rate of coal dust reach more than 98% with multiple pipeline combustion mechanisms；On the other hand, pipeline combustion mechanism area of dissipation and the ratio of pipeline combustion mechanism volume can be increased, and then make the radiant heat of pipeline combustion mechanism fully distribute, improve heat utilization efficiency, effectively reduce combustion conduit interior temperature；Additionally, control heat-exchanger rig by controller and can realize coal dust low-temperature burning, ignition temperature is controlled below coal ash fusion temperature, and then suppression fouling is formed, ensure the heat-radiating properties of pipeline combustion mechanism, meanwhile, temperature is controlled below the critical temperature generating oxynitride, reduce the generation of oxynitride, reduce environmental pollution.
Accompanying drawing illustrates:
Fig. 1 is the overall structure schematic diagram of embodiment 1.
Fig. 2 is the overall structure schematic diagram of embodiment 2.
Controller 1, pipeline combustion mechanism 2, dosing pump 21, primary combustion pipe 22, primary air fan 23, lighter 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.
Detailed description of the invention:
Embodiment 1: as shown in Figure 1, multistage duct type coal burner, it includes controller 1 and two pipeline combustion mechanisms 2, during use, the charging aperture of the dosing pump 21 of each pipeline combustion mechanism 2 is connected with Pulverized Coal Bin by pipeline, second-time burning pipe 27 afterbody of each pipeline combustion mechanism 2 is purified collection device with heat-exchanger rig, tailing successively and is connected；Quantitative for coal dust in Pulverized Coal Bin can be pumped in primary combustion pipe 22 by dosing pump 21；Pipeline combustion mechanism 2 includes that dosing pump 21, primary combustion pipe 22, primary air fan 23, lighter 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 sequentially connected with according to material conveying direction；The air outlet of primary air fan 23 connects with primary combustion pipe 22 feed end, and air is sent into primary combustion pipe 22 by primary air fan 23, and then makes air be sufficiently mixed with the coal dust discharged by dosing pump 21, forms breeze airflow；Being provided with lighter 24 at primary combustion pipe 22 feed end, lighter 24 will be lighted with the breeze airflow in this combustion pipe；It is provided with conical nozzle 212 inside primary combustion pipe 22 discharge end, combustion-supporting chamber 25, conical nozzle 212 can make the breeze airflow of burning concentrate and spray into combustion-supporting chamber 25, the exhaust outlet of combustion fan 26 is internal with combustion-supporting chamber 25 to be connected, air can be filled into combustion-supporting chamber 25 by combustion fan 26 in time, and then promote coal dust fully to burn, improve the utilization rate of coal dust, make the burn-off rate of coal dust reach more than 98%；The air outlet of overfire air fan 28 connects with second-time burning pipe 27 feed end, tail gas in second-time burning pipe 27 can be sequentially sent to heat-exchanger rig by overfire air fan 28 and tailing purifies in collection device, heat-exchanger rig can absorb the heat carried in tail gas, improve heat utilization ratio, tailing purifies collection device can purify the dust granules carried in collection tail gas, cleaning of off-gas, stops environmental pollution；It is provided with gas monitoring instrument 29 at second-time burning pipe 27 afterbody, the dosing pump 21 of controller 1 and pipeline combustion mechanism 2, primary air fan 23, combustion fan 25, gas monitoring instrument 27 are connected, and controller 1 controls the feeding coal of dosing pump 21 and primary air fan 23 and the air output of combustion fan 25；By gas monitoring instrument 27 to being capable of the tail gas of each pipeline combustion mechanism 2 is monitored in real time, and monitoring result is transferred to controller 1, and then realized the precision control of the feed pump 21 to each pipeline combustion mechanism 2, primary air fan 23, combustion fan 25 by controller 1.
Embodiment 2: as shown in Figure 2, difference with embodiment 1 is, pipeline combustion mechanism 2 also includes two heat-exchanger rigs 210 and connects the water pump 211 arranged with each heat-exchanger rig 210 water inlet, all be arranged with heat-exchanger rig 210 in the outside of primary combustion pipe 22 and second-time burning pipe 27, the water inlet of heat-exchanger rig 210 is connected with the outlet of corresponding water pump 211 by pipeline；Water pump 211 is connected with controller 1, and controller 1 controls the operating frequency of water pump 211；Heat-exchanger rig 210 can fully absorb primary combustion pipe 22 and the radiant heat of second-time burning pipe 27, improves efficiency of utilization；By heat-exchanger rig 210, the portion's temperature in primary combustion pipe 22 and second-time burning pipe 27 is controlled below the critical temperature generating oxynitride, it is to avoid generate oxynitride, stop environmental pollution；It addition, control heat-exchanger rig 210 by controller 1 can realize the low-temperature burning of coal dust, ignition temperature is controlled below coal ash fusion temperature, and then suppression fouling is formed, it is ensured that the heat-radiating properties of burner.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (4)
1. multistage duct type coal burner, it is characterized in that, it includes controller and several pipeline combustion mechanisms, described controller is connected with the dosing pump of described pipeline combustion mechanism, primary air fan, combustion fan, gas monitoring instrument respectively, and described controller controls the feeding coal of described dosing pump and described primary air fan and the air output of described combustion fan.
Multistage duct type coal burner the most according to claim 1, it is characterized in that, described pipeline combustion mechanism includes that described dosing pump, primary combustion pipe, described primary air fan, lighter, combustion-supporting chamber, described combustion fan, second-time burning pipe, overfire air fan, described gas monitoring instrument, described dosing pump, described primary combustion pipe, described combustion-supporting chamber, described second-time burning pipe are sequentially connected with according to material conveying direction；Being provided with described lighter at described primary combustion pipe feed end, the air outlet of described primary air fan connects with described primary combustion pipe feed end；The exhaust outlet of described combustion fan is internal with described combustion-supporting chamber to be connected；Being provided with described gas monitoring instrument at described second-time burning pipe afterbody, the air outlet of described overfire air fan connects with described second-time burning pipe feed end.
Multistage duct type coal burner the most according to claim 2, it is characterised in that be provided with conical nozzle inside described primary combustion pipe discharge end, described combustion-supporting chamber.
4. according to the arbitrary described multistage duct type coal burner of Claims 2 or 3, it is characterized in that, described pipeline combustion mechanism also includes two heat-exchanger rigs and connects the water pump arranged with each described heat-exchanger rig water inlet, all being arranged with described heat-exchanger rig in the outside of described primary combustion pipe and described second-time burning pipe, the water inlet of described heat-exchanger rig is connected with the outlet of corresponding described water pump by pipeline；Described water pump is connected with described controller, and described controller controls the pump water yield of described water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620161546.XU CN205560829U (en) | 2016-03-02 | 2016-03-02 | Multistage pipeline formula coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620161546.XU CN205560829U (en) | 2016-03-02 | 2016-03-02 | Multistage pipeline formula coal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205560829U true CN205560829U (en) | 2016-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620161546.XU Withdrawn - After Issue CN205560829U (en) | 2016-03-02 | 2016-03-02 | Multistage pipeline formula coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205560829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605607A (en) * | 2016-03-02 | 2016-05-25 | 内蒙古金土环保科技有限公司 | Multi-section pipeline type pulverized coal combustor |
-
2016
- 2016-03-02 CN CN201620161546.XU patent/CN205560829U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605607A (en) * | 2016-03-02 | 2016-05-25 | 内蒙古金土环保科技有限公司 | Multi-section pipeline type pulverized coal combustor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20180921 |
|
| AV01 | Patent right actively abandoned |