CN209246062U - A kind of nitrogen oxides device reducing offal biomass fuel combustion - Google Patents
A kind of nitrogen oxides device reducing offal biomass fuel combustion Download PDFInfo
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- CN209246062U CN209246062U CN201822066137.3U CN201822066137U CN209246062U CN 209246062 U CN209246062 U CN 209246062U CN 201822066137 U CN201822066137 U CN 201822066137U CN 209246062 U CN209246062 U CN 209246062U
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- offal
- collecting equipment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The utility model discloses a kind of nitrogen oxides devices for reducing offal biomass fuel combustion, offal boiler is by burner hearth, heat-exchanger rig, primary combustion zone, air-introduced machine and chimney composition, offal fuel primary combustion zone is fixed in the burner hearth, the side offal boiler internal of burner hearth is fixedly installed heat-exchanger rig, and air-introduced machine is fixedly installed outside the side of offal boiler, gas recirculating fan is provided on air-introduced machine outlet conduit, the output end of gas recirculating fan is connected with flue gas recirculation injection apparatus, flue gas recirculation injection apparatus is located at the surface of primary combustion zone inside burner hearth, air-introduced machine outlet conduit end is provided with chimney, and the middle position of chimney and air-introduced machine is provided with particle dust-collecting equipment, nitrogen oxides can not only be reduced, operating cost is reduced simultaneously, and to offal biomass combustion after The granule foreigns such as soot carry out Adsorption.
Description
Technical field
The utility model relates to a kind of field of environment engineering technology, specifically a kind of reduction offal biomass fuel combustion
Nitrogen oxides device.
Background technique
Offal direct-combustion boiler below for 20 ton/hours, the tobacco redryings such as offal, tobacco leaf powder, the miscellaneous tobacco leaf of mould are raw
The waste generated during producing, uses as fuel there are nitrogen content, high oxygen content, and ignition temperature is low, is easy burning, if
Not taking reduces nitrogen oxides measure, and flue gas nitrogen oxide will be caused to severely exceed discharge.If directlyed adopt existing out of stock
Technology will cause operating cost high, lose more than gain, while can not by out of stock technology after existing offal biomass combustion
It eliminates granule foreigns, the direct emissions such as the soot generated in combustion process and causes certain pollution to environment.
Utility model content
The purpose of this utility model is to provide a kind of nitrogen oxides devices for reducing offal biomass fuel combustion, with solution
It is raw to provide a kind of reduction offal for 20 ton/hours of offal direct-combustion boilers below for certainly the problems mentioned above in the background art
Biomass fuel burning nitrogen oxides device, reduce nitrogen oxides simultaneously reduce operating cost, and to offal biomass combustion after
The granule foreigns such as soot carry out Adsorption.
To achieve the above object, the utility model provides the following technical solutions:
A kind of nitrogen oxides device reducing offal biomass fuel combustion, offal boiler is by burner hearth, heat-exchanger rig, primary
Combustion zone, air-introduced machine and chimney form, and are fixed with offal fuel primary combustion zone, the side offal pot of burner hearth in the burner hearth
Furnace interior is fixedly installed heat-exchanger rig, and air-introduced machine is fixedly installed outside the side of offal boiler, air-introduced machine outlet
Gas recirculating fan is provided on road, the output end of gas recirculating fan is connected with flue gas recirculation injection apparatus, flue gas
Recycling injection apparatus is located at the surface of primary combustion zone inside burner hearth.
As a further solution of the present invention: air-introduced machine outlet conduit end is provided with chimney, and in chimney
The middle position of air-introduced machine is provided with particle dust-collecting equipment, the outlet conduit of air-introduced machine is arranged by connecting pipe to be removed in particle
On dirt device, particle dust-collecting equipment is connected on chimney by chimney connector.
It is fixedly installed out of stock spray gun outside the other side of offal boiler as a further solution of the present invention,
Out of stock spray gun is located at flue gas in burner hearth and follows the top of bad injection apparatus again, and is fixedly installed continuously in the outside of offal boiler
The output end of waste heat apparatus, continuous waste heat apparatus is connected with out of stock agitator tank by pipeline, and valve is fixedly installed on pipeline,
The discharge port end of the out of stock agitator tank is connected with out of stock liquid storage tank, is provided in the liquid outlet pipe of out of stock liquid storage tank
Piston pump, and out of stock spray gun, and going out in out of stock liquid storage tank are connected in the liquid outlet pipe end of out of stock liquid storage tank
Air compressor is provided in the bypass of liquid pipe road.
The particle dust-collecting equipment generally cavity case structure as a further solution of the present invention, and
The top of grain dust-extraction unit is horn-like structure, and connects chimney by chimney connector at the top of particle dust-collecting equipment, and
The bottom of particle dust-collecting equipment is wedge structure, and is arranged in blowdown water tank in the connection of the bottom wedge shape of particle dust-collecting equipment
Portion, the inside of the particle dust-collecting equipment are fixedly installed dedusting filtering bag, and the particle dust-collecting equipment above dedusting filtering bag is empty
Chamber is internally provided with injection tube, and the outside of particle dust-collecting equipment, and position are arranged in through particle dust-collecting equipment for one end of injection tube
It is provided with pulse valve in injection tube outside the particle dust-collecting equipment, and is additionally provided in the injection tube outside particle dust-collecting equipment
Gas bag.
A side bottom of the blowdown water tank is fixedly installed sewage pipe as a further solution of the present invention,
And control valve is provided on sewage pipe.
The gas recirculating fan is equipped with frequency conversion adjustment device for high as a further solution of the present invention, can
To adjust flue gas recycled amount.
Compared with prior art, the utility model has the beneficial effects that the utility model structure is simple, construction is novel, if
Rationally, offal fuel enters in burner hearth meter, and since ignition temperature is low, fuel itself is oxygen-containing, immediately begins to burn, the flue gas of generation
And imperfect combustion gas and solid fuel is upward, with the cigarette sent from air-introduced machine outlet by gas recirculating fan
Gas generates the air-flow of covering section of burner hearth by the jet-action of flue gas recirculation injection apparatus, upward burning gases and solid
Fluid fuel is mixed with flue gas recycled, and part nitrogen oxides is reduced into nitrogen, reduces amount of nitrogen oxides；When the nitrogen oxygen of flue gas
Compound is still exceeded, opens the drain valve of continuous waste heat apparatus, the boiler blowdown water of water temperature DEG C enters out of stock agitator tank, until suitable
Liquid level is closed, and is required that appropriate number of urea is added according to concentration, starts agitating device, after urea and water sufficiently dissolve mixing,
Urea liquid enters out of stock liquid storage tank, opens urea liquid piston pump and air compressor, realizes urea liquid and pressure
Contracting air enters out of stock spray gun by different pipelines, under the action of out of stock spray gun, is formed in atomization high speed injection to burner hearth, with
The smoke contacts of rising mix, and further decrease amount of nitrogen oxides；And it is realized by the dedusting filtering bag inside particle dust-collecting equipment
Absorption to granule foreigns such as soots after offal biomass combustion passes through pulse valve and carries out pulse dust removal, further smoke-purifying
The gas of chimney discharge.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for reducing the nitrogen oxides device of offal biomass fuel combustion.
Fig. 2 is the structural schematic diagram of particle dust-collecting equipment in the nitrogen oxides device for reduce offal biomass fuel combustion.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~2, in the utility model embodiment, a kind of nitrogen oxides reducing offal biomass fuel combustion
Device, offal boiler are made of burner hearth 1, heat-exchanger rig 2, primary combustion zone 3, air-introduced machine 4 and chimney 5, fixed in the burner hearth 1
Equipped with offal fuel primary combustion zone 3, the side offal boiler internal of burner hearth 1 is fixedly installed heat-exchanger rig 2, and in offal pot
It is fixedly installed air-introduced machine 4 outside the side of furnace, is provided with gas recirculating fan 6 on 4 outlet conduit of air-introduced machine, flue gas follows again
The output end of ring blower 6 is connected with flue gas recirculation injection apparatus 7, and it is primary that flue gas recirculation injection apparatus 7 is located at 1 inside of burner hearth
When the surface of combustion zone 3, i.e. offal boiler operatiopn, first ignition, the uncombusted combustible gas on primary combustion zone 3 of offal
Body and solid fuel move upwards, and pass through the effect of gas recirculating fan 6 extremely with the flue gas recycled exported from air-introduced machine 4
Flue gas recirculation injection apparatus 7, flue gas recirculation injection apparatus high speed injection to entire section of burner hearth, is mixed by contact, is promoted
Into full combustion of fuel, the oxygen that fuel combustion needs is supplemented, the nitrogen oxides part in flue gas is reduced into harmless nitrogen
Gas.
The 4 outlet conduit end of air-introduced machine is provided with chimney 5, and is provided in chimney 5 and the middle position of air-introduced machine 4
The outlet conduit of particle dust-collecting equipment 15, air-introduced machine 4 is arranged on particle dust-collecting equipment 15 by connecting pipe 20, granule dedusting
Device 15 is connected on chimney 5 by chimney connector 23, after being realized by particle dust-collecting equipment 15 to offal biomass combustion
The granule foreigns such as soot Adsorption.
Out of stock spray gun 8 is fixedly installed outside the other side of offal boiler, out of stock spray gun 8 is located at flue gas again in burner hearth 1
The top of bad injection apparatus 7 is followed, and is fixedly installed continuous waste heat apparatus 14, continuous waste heat apparatus 14 in the outside of offal boiler
Output end out of stock agitator tank 12 is connected with by pipeline, and on pipeline be fixedly installed valve 13, the out of stock agitator tank 12
Discharge port end be connected with out of stock liquid storage tank 11, be provided with piston pump 10 in the liquid outlet pipe of out of stock liquid storage tank 11,
And it is connected with out of stock spray gun 8 in the liquid outlet pipe end of out of stock liquid storage tank 11, and go out liquid in out of stock liquid storage tank 11
It is provided with air compressor 9 in pipeline bypass, when flue gas continues to rise through the position of out of stock spray gun 8, opens continuous waste heat
70 DEG C of boiler blowdown water of valve 13 on device 14, continuous waste heat apparatus 14 enter out of stock agitator tank 12, and liquid level is properly closed
Valve 13 pours into proper amount of urea, opens agitating device, is dissolved to urea in water, becomes denitration medicament, i.e., by out of stock
Spray gun 8 ejects the out of stock medicament being atomized full of section of burner hearth, and flue gas coming into full contact with and mixing with out of stock medicament, in flue gas
Nitrogen oxides be reduced to harmless nitrogen.
The particle dust-collecting equipment 15 generally cavity case structure, and the top of particle dust-collecting equipment 15 is horn-like knot
Structure, and chimney 5 is connected by chimney connector 23 at the top of particle dust-collecting equipment 15, and the bottom of particle dust-collecting equipment 15 is
Wedge structure, and the inside of blowdown water tank 21, the granule dedusting are set in the connection of the bottom wedge shape of particle dust-collecting equipment 15
The inside of device 15 is fixedly installed dedusting filtering bag 19, and 15 cavity inside of particle dust-collecting equipment above dedusting filtering bag 19 is set
It is equipped with injection tube 16, the outside of particle dust-collecting equipment 15, and position are arranged in through particle dust-collecting equipment 15 for one end of injection tube 16
Pulse valve 17, and the blowing outside particle dust-collecting equipment 15 are provided in injection tube 16 outside particle dust-collecting equipment 15
Gas bag 18 is additionally provided on pipe 16, after realizing by the dedusting filtering bag 8 inside particle dust-collecting equipment 15 to offal biomass combustion
The absorption of the granule foreigns such as soot carries out pulse dust removal by pulse valve 17, further purifies the gas that chimney 5 is discharged.
One side bottom of the blowdown water tank 21 is fixedly installed sewage pipe 22, and control is provided on sewage pipe 22
Valve, when the particle dust on dedusting filtering bag 18 is blown off blowdown water tank 21 by injection tube 16, by the water in blowdown water tank 21 into
Row absorption, to be discharged.
The gas recirculating fan 6 is equipped with frequency conversion adjustment device for high, adjustable flue gas recycled amount, when passing through flue gas
The effect of recycling meets nitrogen oxides qualified discharge, can pump 10 with closure piston, reduce operating cost.
The working principle of the utility model is: when boiler operatiopn, when 3 temperature of primary combustion zone is higher than 800 DEG C, flue gas is opened
Recirculation blower 6, flue gas recycled enter flue gas recirculation injection apparatus 7, by the effect of flue gas recirculation injection apparatus 7,
High-speed flow is generated, section of burner hearth is covered, uncombusted fuel gas and solid fuel contact mixing, supplement combustion with flue gas recycled
The oxygen needed is burnt, part nitrogen oxides is reduced into harmless nitrogen；If smoke on-line monitoring system shows nitrogen oxides
There is exceeded possibility, open piston pump 10, after the out of stock medicament from out of stock holding vessel 11 is pressurizeed by piston pump, and from compression
The compressed air of air 9 enters out of stock spray gun together, under the action of out of stock spray gun, forms atomization and is full of section of burner hearth, atomization
Out of stock medicament mixed with smoke contacts, restore flue gas in nitrogen oxides be harmless nitrogen；Flue gas is changed by heat-exchanger rig 2
After heat, by the effect of air-introduced machine 4 to particle dust-collecting equipment 15, realized by the dedusting filtering bag 8 inside particle dust-collecting equipment 15
Absorption to granule foreigns such as soots after offal biomass combustion passes through pulse valve 17 and carries out pulse dust removal, further purifies
The gas that chimney 5 is discharged, so that the gas that chimney 5 is discharged reaches discharge standard.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into
Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all
It is included within the scope of protection of this utility model.
Claims (5)
1. it is a kind of reduce offal biomass fuel combustion nitrogen oxides device, it is characterised in that: offal boiler by burner hearth (1),
Heat-exchanger rig (2), primary combustion zone (3), air-introduced machine (4) and chimney (5) composition, the burner hearth (1) is interior to be fixed with offal combustion
Expect primary combustion zone (3), the side offal boiler internal of burner hearth (1) is fixedly installed heat-exchanger rig (2), and in offal boiler
It is fixedly installed outside side air-introduced machine (4), is provided with gas recirculating fan (6) on air-introduced machine (4) outlet conduit, flue gas is again
The output end of circulating fan (6) is connected with flue gas recirculation injection apparatus (7), and flue gas recirculation injection apparatus (7) is located at burner hearth
(1) surface of internal primary combustion zone (3)；
Air-introduced machine (4) the outlet conduit end is provided with chimney (5), and is installed in chimney (5) and the interposition of air-introduced machine (4)
It is equipped with particle dust-collecting equipment (15), the outlet conduit of air-introduced machine (4) is arranged by connecting pipe (20) in particle dust-collecting equipment
(15) on, particle dust-collecting equipment (15) is connected on chimney (5) by chimney connector (23).
2. a kind of nitrogen oxides device for reducing offal biomass fuel combustion according to claim 1, it is characterised in that:
It is fixedly installed outside the other side of offal boiler out of stock spray gun (8), out of stock spray gun (8) is located at flue gas in burner hearth (1) and follows again
The top of ring spray injection device (7), and continuous waste heat apparatus (14), continuous waste heat apparatus are fixedly installed in the outside of offal boiler
(14) output end is connected with out of stock agitator tank (12) by pipeline, and valve (13) are fixedly installed on pipeline, described out of stock
The discharge port end of agitator tank (12) is connected with out of stock liquid storage tank (11), is set in the liquid outlet pipe of out of stock liquid storage tank (11)
It is equipped with piston pump (10), and is connected with out of stock spray gun (8) in the liquid outlet pipe end of out of stock liquid storage tank (11), and out of stock
Air compressor (9) are provided in the liquid outlet pipe bypass of liquid storage tank (11).
3. a kind of nitrogen oxides device for reducing offal biomass fuel combustion according to claim 1, it is characterised in that:
The particle dust-collecting equipment (15) generally cavity case structure, and the top of particle dust-collecting equipment (15) is horn-like structure,
And chimney (5) are connected by chimney connector (23) at the top of particle dust-collecting equipment (15), and particle dust-collecting equipment (15)
Bottom is wedge structure, and is arranged in the connection of the bottom wedge shape of particle dust-collecting equipment (15) in the inside of blowdown water tank (21), institute
The inside for stating particle dust-collecting equipment (15) is fixedly installed dedusting filtering bag (19), and the granule dedusting above dedusting filtering bag (19)
Device (15) cavity inside is provided with injection tube (16), one end of injection tube (16) through particle dust-collecting equipment (15) be arranged
The outside of grain dust-extraction unit (15), and be located in particle dust-collecting equipment (15) external injection tube (16) and be provided with pulse valve
(17), gas bag (18) and in the external injection tube (16) of particle dust-collecting equipment (15) are additionally provided with.
4. a kind of nitrogen oxides device for reducing offal biomass fuel combustion according to claim 3, it is characterised in that:
One side bottom of the blowdown water tank (21) is fixedly installed sewage pipe (22), and is provided with control valve on sewage pipe (22).
5. a kind of nitrogen oxides device for reducing offal biomass fuel combustion according to claim 1, it is characterised in that:
The gas recirculating fan (6) is equipped with frequency conversion adjustment device for high, adjustable flue gas recycled amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822066137.3U CN209246062U (en) | 2018-12-10 | 2018-12-10 | A kind of nitrogen oxides device reducing offal biomass fuel combustion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822066137.3U CN209246062U (en) | 2018-12-10 | 2018-12-10 | A kind of nitrogen oxides device reducing offal biomass fuel combustion |
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| CN209246062U true CN209246062U (en) | 2019-08-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780093A (en) * | 2020-07-08 | 2020-10-16 | 唐山市丰润区神火新能源开发有限公司 | Special burning basin for biomass particle furnace |
-
2018
- 2018-12-10 CN CN201822066137.3U patent/CN209246062U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780093A (en) * | 2020-07-08 | 2020-10-16 | 唐山市丰润区神火新能源开发有限公司 | Special burning basin for biomass particle furnace |
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