CN110397913A - A kind of furfural dregs Denitration in Boiler system effectively improving denitration efficiency - Google Patents
A kind of furfural dregs Denitration in Boiler system effectively improving denitration efficiency Download PDFInfo
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- CN110397913A CN110397913A CN201910719625.6A CN201910719625A CN110397913A CN 110397913 A CN110397913 A CN 110397913A CN 201910719625 A CN201910719625 A CN 201910719625A CN 110397913 A CN110397913 A CN 110397913A
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- Prior art keywords
- boiler
- denitration
- furfural dregs
- belt machine
- charging belt
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- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 title claims abstract description 66
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 39
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 38
- 239000007921 spray Substances 0.000 claims abstract description 27
- 238000000746 purification Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000000779 smoke Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 16
- 239000002028 Biomass Substances 0.000 claims description 12
- 239000000446 fuel Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000004073 vulcanization Methods 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 10
- 239000000908 ammonium hydroxide Substances 0.000 abstract description 10
- 239000003546 flue gas Substances 0.000 abstract description 10
- 238000005457 optimization Methods 0.000 abstract description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000292 calcium oxide Substances 0.000 abstract description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract description 4
- 238000006477 desulfuration reaction Methods 0.000 abstract description 4
- 230000023556 desulfurization Effects 0.000 abstract description 4
- 238000010304 firing Methods 0.000 abstract description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- -1 greatly reduce cost Chemical compound 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 14
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000005903 acid hydrolysis reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- 235000002566 Capsicum Nutrition 0.000 description 1
- 240000008574 Capsicum frutescens Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001390 capsicum minimum Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- F23C10/00—Fluidised bed combustion apparatus
-
- 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
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J7/00—Arrangement of devices for supplying chemicals to fire
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/10—Nitrogen; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/10—Nitrogen; Compounds thereof
- F23J2215/101—Nitrous oxide (N2O)
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses the furfural dregs Denitration in Boiler systems that one kind can effectively improve denitration efficiency, including blanking funnel, boiler charging belt machine, boiler, spray purification tower, ammonia water tank and control cabinet, the transmission initial end top of boiler charging belt machine is arranged in blanking funnel, the transmission end of boiler charging belt machine is connect with boiler feeding end, and the upper end of boiler is equipped with smoke exhaust pipe.The adjustment that the present invention passes through the working of a furnaces such as test adjustment one Secondary Air proportion, to improve denitration efficiency, after a series of behaves such as addition inert material firing optimization, finally realize the minimum discharge of online NOx, reach 30mg/nm3 or less, by increasing inert material and scraper stirring, complete the reaction of partial denitrification ammonia nitrogen early period, in denitration workshop section, by repetition test, 150 titres also are reduced to by 210 titres in the use of ammonium hydroxide, greatly reduce cost, SO2 has also been down to minimum discharge standard in flue gas simultaneously, eliminates the costs such as the calcium oxide of desulfurization.
Description
Technical field
The present invention relates to technical field of waste gas treatment, specially a kind of furfural dregs boiler that can effectively improve denitration efficiency is de-
Nitre system.
Background technique
Furfural dregs are remaining solid waste after adding sulphuric acid hydrolysis by corncob, and furfural dregs are as biomass water solution preocess
The waste of middle generation, salt content is high, is in acidity, and bulk deposition can generate pollution to atmosphere, soil, river, therefore
Existing technology is that furfural dregs are carried out burning processing mostly.
But existing technical disadvantages:
1, existing furfural dregs humidity is larger, and direct burning boiler load is larger, and furfural dregs easily bond, and easily makes pot by burning
Furnace is unstable and flue easily blocks.
2, existing furfural dregs are remaining solid waste after adding sulphuric acid hydrolysis by corncob, contain portion in furfural dregs
Divide sulfuric acid, easily causes sulfur dioxide emissioning concentration higher after furfural dregs burning, 35mg/m3 cannot be reached hereinafter, being unable to flue gas
The index request of online minimum discharge.
3, furfural dregs directly burn because furfural dregs moisture content is higher, cause water content in flue gas higher, in denitrating system
When spraying ammonium hydroxide, ammonium hydroxide titre is made to require index higher, but cannot be reacted completely again after being contacted with water content, causes the wave of ammonium hydroxide
Take, while nitrogen oxides in effluent content is higher, cannot reach and meet the needs of environmentally friendly 50mg/m3.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides the furfural dregs Denitration in Boiler systems that one kind can effectively improve denitration efficiency
System solves the problem of furfural dregs combustion denitration low efficiency, smoke evacuation is unable to reach the technology of environmental requirement.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of furfural dregs boiler that can effectively improve denitration efficiency
Denitrating system, including blanking funnel, boiler charging belt machine, boiler, spray purification tower, ammonia water tank and control cabinet, blanking funnel
The transmission initial end top of boiler charging belt machine is set, and the transmission end and boiler feeding end of boiler charging belt machine connect
It connects, the upper end of boiler is equipped with smoke exhaust pipe, and the other end of smoke exhaust pipe is connect with the spray purification tower that boiler side is arranged in, spray
The other side of purifying column is provided with ammonia water tank, and ammonia water pipe is equipped between ammonia water tank and spray purification tower, is equipped on ammonia water pipe
Aqua ammonia pump, the top of boiler charging belt machine along boiler charging belt machine transmission direction be disposed with boiler ash setting gauge and
Agstone setting gauge, boiler ash setting gauge and agstone setting gauge include U-shaped material toggling storehouse, supporting leg, rotating roller, center
Axis, material toggling motor, material stirring disc and discharge port, the bottom end in U-shaped material toggling storehouse are welded with supporting leg, and the inside in U-shaped material toggling storehouse, which is equipped with, to be turned
Dynamic roller, the centre of rotating roller are plugged with central axis, one end of central axis and the material toggling machine shaft for being mounted on U-shaped material toggling storehouse outer end
It is fixedly connected, the outer end equal part of rotating roller is provided with material stirring disc, and the bottom end in U-shaped material toggling storehouse offers discharge port, the bottom of boiler
It is connected with primary air fan, the side of boiler is connected with secondary air fan, and the bottom of boiler charging belt machine is arranged in control cabinet, control
Case is electrically connected with boiler ash setting gauge and agstone setting gauge, primary air fan, secondary air fan and aqua ammonia pump respectively.
Preferably, spray purification tower includes tower body and the wet scrubber that is arranged in inside tower body.
Preferably, the inside of boiler is being respectively arranged with the first blast cap and second with primary air fan and secondary air fan junction
Blast cap.
Preferably, furfural dregs and biomass fuel are provided in blanking funnel.
Preferably, the bottom of boiler is provided with vulcanization bed on the top of the first blast cap.
Preferably, one end of ammonia water pipe is inserted into the inside of spray purification tower, and is inserted into inside spray purification tower
Spray apertures are offered on ammonia water pipe.
(3) beneficial effect
The present invention provides one kind can effectively improve the furfural dregs Denitration in Boiler system of denitration efficiency, have it is following the utility model has the advantages that
(1) present invention tests the influence to denitration efficiency by adding the inert material of different proportion, passes through fuel structure
Optimization, guarantee of ammonium hydroxide supply that optimization, air quantity are adjusted etc. reach optimum proportioning, and produce load reaches at full capacity, realize NOx row
It is unconventional and unrestrained to discharge 10-15mg/m3 to 30mg/nm3 or less, SO2, meet national minimum discharge standard.
(2) present invention adjusts the adjustment of the working of a furnaces such as Secondary Air proportion by test, and Lai Tigao denitration efficiency passes through addition
After a series of behaves such as inert material firing optimization, flue gas minimum discharge is not only realized, but also also by 210 drops in the use of ammonium hydroxide
Degree is reduced to 130 titres, greatly reduces cost, and SO2 is also down to the concentration of emission of 10-15mg/m3 in flue gas, eliminates
The costs such as the calcium oxide of desulfurization.
(3) after Boiler Mixed Burning inert material, desulfurization eliminates the dosage of calcium oxide and has opened two circulating pumps less, in conjunction with de-
Nitre reduces ammonium hydroxide titre, saves the operation of four aqua ammonia pumps, saves production cost.
Detailed description of the invention
Fig. 1 is process flow chart of the invention；
Fig. 2 is the schematic diagram of internal structure of setting gauge of the present invention；
Fig. 3 is the schematic diagram of internal structure of spray purification tower of the present invention.
Appended drawing reference in figure are as follows: 1, blanking funnel；2, boiler charging belt machine；3, boiler；4, smoke exhaust pipe；5, spray cleaning
Tower；6, ammonia water tank；7, boiler ash setting gauge；8, agstone setting gauge；9, primary air fan；10, secondary air fan；11, vulcanize
Bed；12, the first blast cap；13, the second blast cap；14, tower body；15, wet scrubber；16, U-shaped material toggling storehouse；17, supporting leg；18, it rotates
Roller；19, central axis；20, material toggling motor；21, material stirring disc；22, discharge port；23, ammonia water pipe；24, aqua ammonia pump；25, control cabinet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1-3, the present invention provides a kind of technical solution: one kind can effectively improve the furfural dregs boiler of denitration efficiency
Denitrating system, including blanking funnel 1, boiler charging belt machine 2, boiler 3, spray purification tower 5, ammonia water tank 6 and control cabinet 25, fall
The transmission initial end top of boiler charging belt machine 2, the transmission end of boiler charging belt machine 2 and boiler 3 is arranged in funnel 1
Feeding end connection, the upper end of boiler 3 are equipped with smoke exhaust pipe 4, and the other end of smoke exhaust pipe 4 and the spray that 3 side of boiler is arranged in are net
Change tower 5 to connect, the other side of spray purification tower 5 is provided with ammonia water tank 6, is equipped with ammonium hydroxide between ammonia water tank 6 and spray purification tower 5
Pipe 23 is equipped with aqua ammonia pump 24 on ammonia water pipe 23, and the top of boiler charging belt machine 2 is along 2 transmission direction of boiler charging belt machine
It is disposed with boiler ash setting gauge 7 and agstone setting gauge 8, boiler ash setting gauge 7 and agstone setting gauge 8 are equal
Including U-shaped material toggling storehouse 16, supporting leg 17, rotating roller 18, central axis 19, material toggling motor 20, material stirring disc 21 and discharge port 22, U-shaped group
The bottom end of feed bin 16 is welded with supporting leg 17, and the inside in U-shaped material toggling storehouse 16 is equipped with rotating roller 18, and the centre of rotating roller 18 is plugged with
Central axis 19, one end of central axis 19 are fixedly connected with 20 shaft of material toggling motor for being mounted on U-shaped 16 outer end of material toggling storehouse, rotating roller
18 outer end equal part is provided with material stirring disc 21, and the bottom end in U-shaped material toggling storehouse 16 offers discharge port 22, and the bottom of boiler 3 is connected with
Primary air fan 9, the side of boiler 3 are connected with secondary air fan 10, and the bottom of boiler charging belt machine 2 is arranged in control cabinet 25, control
Case 25 processed is electric with boiler ash setting gauge 7 and agstone setting gauge 8, primary air fan 9, secondary air fan 10 and aqua ammonia pump 24 respectively
Property connection, 25 model S7-200 of control cabinet, spray purification tower 5 includes tower body 14 and the wet dust removal that is arranged in inside tower body 14
The inside of device 15, boiler 3 is being respectively arranged with the first blast cap 12 and the second blast cap with primary air fan 9 and 10 junction of secondary air fan
13, furfural dregs and biomass fuel are provided in blanking funnel 1, and the bottom of boiler 3 is provided with sulphur on the top of the first blast cap 12
Change bed 11, one end of ammonia water pipe 23 is inserted into the inside of spray purification tower 5, and is inserted into the ammonium hydroxide inside spray purification tower 5
Spray apertures are offered on pipe 23.
Working principle；In use, first adding the alkaline biomass fuel of furfural dregs and moisture less than 10% in blanking funnel 1
Material, biomass fuel is preferably peanut shell, cotton frame, capsicum branch, then in the boiler ash on 2 top of boiler charging belt machine
Ashes and agstone are added respectively in setting gauge 7 and agstone setting gauge 8, then to biomass fuel, furfural dregs, lime
Mountain flour, ashes carry out adjusting test in proportion；Biomass fuel is pressed the interval time of deslagging by the shovel number calculating of forklift, furfural dregs
It calculates, agstone and ashes are calculated by feeding port material toggling speed (subject to motor speed) is newly established；
At test initial stage, furfural dregs: biomass fuel: agstone: ashes=20min:2 shovel: 8r/min:20r/min passes through examination
It tests, the flue gas nitrogen oxide content of boiler 3 can reach 45mg/m3 or so；When testing again, the ratio of a propellant composition is adjusted,
By furfural dregs: biomass fuel: agstone: ashes=24min:3.5 is shoveled: 12r/min:18r/min, in final 3 flue gas of boiler
Exhaust nitrogen oxides content can reach 40mg/m3 hereinafter, still less stable；It finally adjusts each boiler 3 and enters furnace component ratio, by chaff
Aldehyde slag: biomass fuel: agstone: ashes=26.7min:3 shovel: 12r/min:24r/min, it is final to realize in 3 flue gas of boiler
Exhaust nitrogen oxides content 30mg/m3 and stabilization；
In test, discovery biomass fuel is not enough, and 3 fluid effect of boiler is not satisfactory, then adjusts primary air fan 9, two
The frequency of secondary blower 10 is to guarantee completely burned and boiler 3 fluidizes well, blocking of not agglomerating, 9 frequency of final result primary air fan
50HZ is increased to by 39HZ, 10 frequency of secondary air fan is adjusted downward to 39HZ by 45HZ, realizes 3 completely burned of boiler and flue gas is up to standard
The purpose of discharge.
It can to sum up obtain, the present invention adjusts the adjustment of the working of a furnaces such as Secondary Air proportion by test, and Lai Tigao denitration efficiency leads to
After crossing a series of behaves such as addition inert material firing optimization, finally realize the minimum discharge of online NOx, reach 30mg/nm3 with
Under, it is stirred by increasing inert material and scraper, the reaction of partial denitrification ammonia nitrogen is completed early period, in denitration workshop section, by repeatedly
Test, is also reduced to 150 titres by 210 titres in the use of ammonium hydroxide, greatly reduces cost, while SO2 also drops in flue gas
To minimum discharge standard, the costs such as the calcium oxide of desulfurization are eliminated.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. one kind can effectively improve the furfural dregs Denitration in Boiler system of denitration efficiency, including blanking funnel (1), boiler charging belt
Machine (2), boiler (3), spray purification tower (5), ammonia water tank (6) and control cabinet (25), it is characterised in that: blanking funnel (1) setting
On the transmission initial end top of boiler charging belt machine (2), the transmission end of boiler charging belt machine (2) and boiler (3) pan feeding
End connection, the upper end of boiler (3) are equipped with smoke exhaust pipe (4), spray of the other end of smoke exhaust pipe (4) with setting in boiler (3) side
Purifying column (5) connection is drenched, the other side of spray purification tower (5) is provided with ammonia water tank (6), ammonia water tank (6) and spray purification tower (5)
Between be equipped with ammonia water pipe (23), be equipped on ammonia water pipe (23) aqua ammonia pump (24), the top of boiler charging belt machine (2) is along pot
Furnace charging belt machine (2) transmission direction is disposed with boiler ash setting gauge (7) and agstone setting gauge (8), Boiler Furnace
Grey setting gauge (7) and agstone setting gauge (8) include U-shaped material toggling storehouse (16), supporting leg (17), rotating roller (18), central axis
(19), the bottom end of material toggling motor (20), material stirring disc (21) and discharge port (22), U-shaped material toggling storehouse (16) is welded with supporting leg (17), U
The inside in type material toggling storehouse (16) is equipped with rotating roller (18), and the centre of rotating roller (18) is plugged with central axis (19), central axis
(19) one end is fixedly connected with material toggling motor (20) shaft for being mounted on U-shaped material toggling storehouse (16) outer end, outside rotating roller (18)
End equal part is provided with material stirring disc (21), and the bottom end of U-shaped material toggling storehouse (16) offers discharge port (22), the bottom connection of boiler (3)
Once blower (9), the side of boiler (3) are connected with secondary air fan (10), and control cabinet (25) is arranged in boiler charging belt machine
(2) bottom, control cabinet (25) respectively with boiler ash setting gauge (7) and agstone setting gauge (8), primary air fan (9), two
Secondary blower (10) and aqua ammonia pump (24) are electrically connected.
2. one kind according to claim 1 can effectively improve the furfural dregs Denitration in Boiler system of denitration efficiency, feature exists
In: spray purification tower (5) includes the wet scrubber (15) of tower body (14) and setting in tower body (14) inside.
3. one kind according to claim 1 can effectively improve the furfural dregs Denitration in Boiler system of denitration efficiency, feature exists
In: the inside of boiler (3) is being respectively arranged with the first blast cap (12) and with primary air fan (9) and secondary air fan (10) junction
Two blast caps (13).
4. one kind according to claim 1 can effectively improve the furfural dregs Denitration in Boiler system of denitration efficiency, feature exists
In: furfural dregs and biomass fuel are provided in blanking funnel (1).
5. one kind according to claim 1 can effectively improve the furfural dregs Denitration in Boiler system of denitration efficiency, feature exists
In: the bottom of boiler (3) is provided with vulcanization bed (11) on the top of the first blast cap (12).
6. one kind according to claim 1 can effectively improve the furfural dregs Denitration in Boiler system of denitration efficiency, feature exists
In: one end of ammonia water pipe (23) is inserted into the inside of spray purification tower (5), and is inserted into the internal ammonia of spray purification tower (5)
Water pipe offers spray apertures on (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910719625.6A CN110397913A (en) | 2019-08-06 | 2019-08-06 | A kind of furfural dregs Denitration in Boiler system effectively improving denitration efficiency |
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| CN114646067A (en) * | 2022-03-28 | 2022-06-21 | 北京奥科瑞丰新能源股份有限公司 | Desulfurization treatment process for combustion application of furfural residues |
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