CN204693390U - A kind of coal-burning boiler suppressing discharged nitrous oxides - Google Patents
A kind of coal-burning boiler suppressing discharged nitrous oxides Download PDFInfo
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- CN204693390U CN204693390U CN201520355951.0U CN201520355951U CN204693390U CN 204693390 U CN204693390 U CN 204693390U CN 201520355951 U CN201520355951 U CN 201520355951U CN 204693390 U CN204693390 U CN 204693390U
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- heater
- flue
- coal
- fire grate
- air inlet
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Abstract
The utility model discloses a kind of coal-burning boiler suppressing discharged nitrous oxides, comprise body of heater, the bottom of body of heater is provided with natural wind fire grate, in body of heater, top is provided with chimney and dedusting cylinder, furnace interior is symmetrical arranged vertical water-cooling wall, and be intermediate zone above natural wind fire grate, chimney is connected with flue-gas dust removal and purification device by flue dust air inlet pipe, flue-gas dust removal and purification device comprises flue dust air inlet pipe, discharge duct, main purifying column and aspiration pump, and the bottom of main purifying column is provided with clarifier-tank.The utility model accelerates burning velocity, substantially increase the thermal efficiency, save burning time, and chimney is connected with flue-gas dust removal and purification device, by shifting to an earlier date impurity screening, the service life effectively raising scavenging solution also reduces the pollution-free post-processing operation difficulty of scavenging solution arriving service life simultaneously, and integrated operation simple, operate steadily, suppress nitrogen oxide, natural wind combustion zone burns away, reach high energy high use, the object that low energy is low.
Description
Technical field
The utility model relates to a kind of boiler, specifically a kind of coal-burning boiler suppressing discharged nitrous oxides.
Background technology
Boiler smoke nitrogen oxide main source mainly contains two parts: the burning of the nitrogen-containing compound 1, in coal produces; 2, the ignition temperature of boiler is too high, causes the N in air
2be oxidized to NO
x.Solution is targetedly, can according to actual production data for Part I, the coal combustion using generation nitrogen oxide as far as possible more; Because Part II is the main source that nitrogen oxides in effluent produces, the amount that nitrogen and oxygen at high temperature react depends primarily on ignition temperature, nitrogen gas concn and oxygen concentration.Temperature is higher, concentration is larger, the nitrogen oxide produced is more, most of boiler is by reducing combustion zone flame temperature, reduce high-temperature region air capacity supply simultaneously, make high-temperature region combustion reaction be in anaerobic condition, produce imperfect combustion, flue gas is to low-temperature space secondary air distribution combustion again, make other substance combustions complete, reach the object reducing discharged nitrous oxides.A patent was declared before applicant, it is the smokeless coal burning boiler about middle coal, both sides burning suppression discharged nitrous oxides, effectively inhibit the discharge of nitrogen oxide, carry out smokeless combustion, the thermal efficiency is high, but combustion zone adopts natural wind combustion system, speed on fire is slow, burning time is long, if directly add fan burning, can smolder, contaminated environment.
Utility model content
The purpose of this utility model is to provide a kind of coal-burning boiler suppressing discharged nitrous oxides, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of coal-burning boiler suppressing discharged nitrous oxides, comprise body of heater, the bottom of body of heater is provided with natural wind fire grate, in body of heater, top is provided with chimney and dedusting cylinder, furnace interior is symmetrical arranged vertical water-cooling wall, it is intermediate zone above natural wind fire grate, in body of heater, and be positioned at above intermediate zone and be provided with First air fire grate, furnace body outer wall is provided with and stretches in body of heater, and the mechanical air channel be positioned at above First air fire grate, it is First air combustion zone above First air fire grate, chimney is connected with flue-gas dust removal and purification device by flue dust air inlet pipe, flue-gas dust removal and purification device comprises flue dust air inlet pipe, discharge duct, main purifying column and aspiration pump, flue dust air inlet pipe is connected on dirt pocket, dirt pocket is provided with air inlet, the top of main purifying column is provided with clean room, inside, clean room is provided with water curtain generator, clean room is connected with cooler and adsorption chamber by discharge duct, the bottom of main purifying column is provided with clarifier-tank.
As further program of the utility model: be provided with timing drainage valve bottom described cooler.
As the utility model further scheme: described adsorption chamber inside is provided with active carbon.
As the utility model further scheme: described dirt pocket inside is provided with heat exchanger.
Compared with prior art, the beneficial effects of the utility model are: the utility model is on the basis that original natural wind burns, add mechanical blowing, accelerate burning velocity, substantially increase the thermal efficiency, save burning time, low-grade coal also can burn, and chimney is connected with flue-gas dust removal and purification device, by shifting to an earlier date impurity screening, the service life effectively raising scavenging solution also reduces the pollution-free post-processing operation difficulty of scavenging solution arriving service life simultaneously, for the cooling that the gas entering discharge duct shifts to an earlier date, reduce because gas high temperature is for the damage of pipeline, mist after purification is rinsed, cooling condensation and the mode of adsorbing effectively decrease the nuisance composition that Exhaust Gas contains, reach a class area environmental requirement four indices, and integrated operation is simple, operate steadily, do not smolder when burning on peak, suppress nitrogen oxide, reduce the discharge of sulfur dioxide, natural wind combustion zone burns away, reach high energy height to use, the object that low energy is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the coal-burning boiler suppressing discharged nitrous oxides;
In figure: 1-body of heater, 2-natural wind fire grate, 3-chimney, 4-dedusting cylinder, the vertical water-cooling wall of 5-, 6-intermediate zone, 7-First air fire grate, 8-machinery air channel, 9-primary combustion zone, 10-dirt pocket, 11-flue dust air inlet pipe, 12-aspiration pump, 13-adsorption chamber, 14-cooler, 15-discharge duct, the main purifying column of 16-, 17-clean room, 18-water curtain generator, 19-air inlet, 20-clarifier-tank.
Detailed description of the invention
Be described in more detail below in conjunction with the technical scheme of detailed description of the invention to this patent.
Refer to Fig. 1, a kind of coal-burning boiler suppressing discharged nitrous oxides, comprise body of heater 1, be positioned at the natural wind fire grate 2 bottom body of heater 1, be positioned at chimney 3 and the dedusting cylinder 4 of body of heater 1 top, body of heater 1 internal symmetry arranges vertical water-cooling wall 5, it is intermediate zone 6 above natural wind fire grate 2, in body of heater 1, and be positioned at above intermediate zone 6 and be provided with First air fire grate 7, body of heater 1 outer wall is provided with and stretches in body of heater 1, and the mechanical air channel 8 be positioned at above First air fire grate 7, it is First air combustion zone 9 above First air fire grate 7, chimney 3 is connected with flue-gas dust removal and purification device by flue dust air inlet pipe 11, described flue-gas dust removal and purification device comprises flue dust air inlet pipe 11, discharge duct 15, main purifying column 16 and aspiration pump 12, described flue dust air inlet pipe 11 is connected on dirt pocket 10, dirt pocket 10 is provided with air inlet 19, the top of main purifying column 16 is provided with clean room 17, inside, clean room 17 is provided with water curtain generator 18, clean room 17 is connected with cooler 14 and adsorption chamber 13 by discharge duct 15, the bottom of main purifying column 16 is provided with clarifier-tank 20.The water curtain that water curtain generator 18 produces plays flushing action well for the mist passed through.Described cooler 14 makes the moisture in mist and scavenging solution condensation flow out, and described adsorption chamber 13 adsorbs the pernicious gas that the mist after cooling contains.The service life effectively raising scavenging solution by shifting to an earlier date impurity screening also reduces the pollution-free post-processing operation difficulty of scavenging solution arriving service life simultaneously, for the cooling that the gas entering discharge duct 15 shifts to an earlier date, reduce because gas high temperature is for the damage of pipeline, flushing has been carried out for the mist after purification, the mode of cooling condensation and absorption effectively decreases the nuisance composition that Exhaust Gas contains.
Be provided with timing drainage valve bottom described cooler 14, realize automatic draining, alleviate labour intensity.
Described adsorption chamber 13 inside is provided with active carbon, has good suction-operated.
Described dirt pocket 10 inside is provided with heat exchanger, reduces the temperature entering flue gas.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also makes a variety of changes under the prerequisite not departing from this patent aim.
Claims (4)
1. one kind is suppressed the coal-burning boiler of discharged nitrous oxides, comprise body of heater, it is characterized in that, the bottom of body of heater is provided with natural wind fire grate, in body of heater, top is provided with chimney and dedusting cylinder, furnace interior is symmetrical arranged vertical water-cooling wall, it is intermediate zone above natural wind fire grate, in body of heater, and be positioned at above intermediate zone and be provided with First air fire grate, furnace body outer wall is provided with and stretches in body of heater, and the mechanical air channel be positioned at above First air fire grate, it is First air combustion zone above First air fire grate, chimney is connected with flue-gas dust removal and purification device by flue dust air inlet pipe, flue-gas dust removal and purification device comprises flue dust air inlet pipe, discharge duct, main purifying column and aspiration pump, flue dust air inlet pipe is connected on dirt pocket, dirt pocket is provided with air inlet, the top of main purifying column is provided with clean room, inside, clean room is provided with water curtain generator, clean room is connected with cooler and adsorption chamber by discharge duct, the bottom of main purifying column is provided with clarifier-tank.
2. the coal-burning boiler of suppression discharged nitrous oxides according to claim 1, is characterized in that, is provided with timing drainage valve bottom described cooler.
3. the coal-burning boiler of suppression discharged nitrous oxides according to claim 1 and 2, is characterized in that, described adsorption chamber inside is provided with active carbon.
4. the coal-burning boiler of suppression discharged nitrous oxides according to claim 3, is characterized in that, described dirt pocket inside is provided with heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355951.0U CN204693390U (en) | 2015-05-28 | 2015-05-28 | A kind of coal-burning boiler suppressing discharged nitrous oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355951.0U CN204693390U (en) | 2015-05-28 | 2015-05-28 | A kind of coal-burning boiler suppressing discharged nitrous oxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204693390U true CN204693390U (en) | 2015-10-07 |
Family
ID=54233675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520355951.0U Expired - Fee Related CN204693390U (en) | 2015-05-28 | 2015-05-28 | A kind of coal-burning boiler suppressing discharged nitrous oxides |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204693390U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848206A (en) * | 2015-05-28 | 2015-08-19 | 苏州斯洛莱自动化设备有限公司 | Coal-fired boiler with function of suppressing nitrogen oxide emission |
| CN106439877A (en) * | 2016-12-06 | 2017-02-22 | 温州兴南环保科技有限公司 | Environmentallyfriendly boiler |
-
2015
- 2015-05-28 CN CN201520355951.0U patent/CN204693390U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848206A (en) * | 2015-05-28 | 2015-08-19 | 苏州斯洛莱自动化设备有限公司 | Coal-fired boiler with function of suppressing nitrogen oxide emission |
| CN106439877A (en) * | 2016-12-06 | 2017-02-22 | 温州兴南环保科技有限公司 | Environmentallyfriendly boiler |
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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: 20151007 Termination date: 20160528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |