CN109869733A - Boiler exhaust gas purification system - Google Patents
Boiler exhaust gas purification system Download PDFInfo
- Publication number
- CN109869733A CN109869733A CN201910306357.5A CN201910306357A CN109869733A CN 109869733 A CN109869733 A CN 109869733A CN 201910306357 A CN201910306357 A CN 201910306357A CN 109869733 A CN109869733 A CN 109869733A
- Authority
- CN
- China
- Prior art keywords
- room
- dirt pocket
- removing nitric
- desulfurization removing
- exhaust gas
- 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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Classifications
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- 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
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
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- 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
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- 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
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
Abstract
The invention belongs to boiler exhaust gas purification technology fields, specifically disclose a kind of boiler exhaust gas purification system, including dirt pocket and desulfurization removing nitric room, and top between the two is connected to by discharge flue, and middle part is connected to by overflow ducts.Dirt pocket top is equipped with water supply pipe, keeps liquid level in dirt pocket to be located at overflow ducts mouth position, and the indoor liquid level of desulfurization removing nitric is kept to be not higher than overflow ducts mouth position, desulfurization removing nitric room top is equipped with benefit alkali liquor pipe.The present invention carries out dedusting and desulfurization removing nitric separation, can prevent dust pollution lye from lye waste situation being caused to occur and precipitate reluctant problem and occur.And dust sediment is independently understood by dirt pocket, it is handled respectively using desulfurization removing nitric room independent discharge reaction precipitate, and to different effluents, has the function that efficient process and prevent secondary pollution.
Description
Technical field
The invention belongs to boiler exhaust gas purification technology fields, and in particular to one kind can make flue dust and desulfurization removing nitric point
Boiler exhaust gas purification system from processing.
Background technique
The flue dust and sulfur dioxide of Industrial Boiler discharge are one of the largest source of pollution of atmosphere.Common fire coal boiler fume
Desulfation dust-extraction device has fountain, venturi-type, impact cleaning type etc., makes to improve efficiency of dust collection people and usually being connected
With, or it is reequiped, but often greatly improve its occupied area or cost of manufacture.It is relatively common to be used for boiler exhaust gas
Desulfurizing dust-collector be generally wet type desulfurizing dust collector.The advantages of wet dust removal is easy to maintain, and can be by preparing different remove
Dust agent, reaching dedusting and desulfurization (denitrogenation) effect the disadvantage is that dedusting liquid needs to handle may cause secondary pollution.
In existing boiler exhaust gas cleaning equipment, smoke exhaust pipe is directly mixed with lye, flue dust meets the particle precipitating that water is formed
Also it is mixed into reaction solution, leads to the too early retrogradation of reaction solution, alkali consumption is big, and cleaning cycle shortens, and maintenance cost is high, and sediment
Processing is difficult.Such as " high efficiency spray formula water desulfurizing-dusting device " patent document of Publication No. CN105709540A, it discloses
A kind of to use turbulence type dust-removal and desulfurizing technology, main operational principle is by desulfurization, smoke elimination, dedusting in gas, liquid, solid three-phase turbulent flow
It is completed in layer.Turbosphere is set in gas wash tower, and percent opening higher plate in upper and lower part forms a turbulent flow storehouse, in storehouse
A large amount of lightweight balls are placed, sprinkling equipment is arranged in turbosphere top.When exhaust gas passes through turbulent flow storehouse, it is rapid in storehouse to blow lightweight ball
It is dynamic, solid-liquid-gas three phase conversion zone is constituted with the liquid under spray.Its dedusting relies primarily on wet process trapping, and passes through lightweight pellet shapes
At turbosphere strengthen dedusting and desulfurization effect.The turbulent flow dust removing desulphurization plant of this structure, the dust that will contain in flue dust
Particle, lye and sulfur-bearing are mixed containing nitrogen stream, and dust granules are easy to be attached on conversion zone, are caused siltation blockage problem, are influenced
Equipment persistently carries out, and needs periodic cleaning lightweight layers of balls, increases workload and maintenance cost, in desulfurizing dust-collector after lasting use
In, it is not good enough that gas is contacted with desulfurization slurry, thus ideal desulfurization and dedusting effect is not achieved.
Summary of the invention
For the present invention for problems and defect existing for existing boiler exhaust gas system, providing one kind can be by dedusting and row
Cigarette separating treatment, to improve the system cycle of operation, the system of reduction maintenance workload and cost.
Realize that foregoing invention purpose technical solution is taken off using a kind of boiler exhaust gas purification system, including dirt pocket and desulfurization
Nitrogen room, top between the two are connected to by discharge flue, and middle part is connected to by overflow ducts；Dirt pocket top is equipped with moisturizing
Pipe keeps liquid level in dirt pocket to be located at overflow ducts mouth position, and keeps the indoor liquid level of desulfurization removing nitric logical not higher than overflow
Road junction position, desulfurization removing nitric room top are equipped with benefit alkali liquor pipe.
Internal Flue is fixed in dirt pocket, the lower end of the Internal Flue is after the extraction of dirt pocket side wall with vertical into cigarette
Joint sealing connection is connected into cigarette connector and boiler exhaust gas outlet.
Internal Flue upper end exceeds overflow ducts, has a pressure fan housing in the outside ring set of Internal Flue, presses under fan housing
Edge is located under liquid level, which is sequentially connected by the regulating mechanism being arranged outside transmission mechanism and dirt pocket, passes through adjusting
Mechanism can change the height of paddling of pressure fan housing.
The bottom of the dirt pocket and desulfurization removing nitric room is respectively dust siltation chamber and precipitating chamber and is respectively arranged with valve；It is de-
The top of sulphur denitrogenation room is chimney, and the desulfurization removing nitric room top Nei Qiang is provided with lye spraying mechanism.
Wherein, the transmission mechanism for controlling pressure fan housing is that support rod is fixed at the top of dirt pocket, and support bar top is logical
It crosses fixed pin shaft and is hinged with swing rod, pressure fan housing top vertical is fixed with elevating lever, passes through pin shaft and the mark post at the top of elevating lever
Inner end is hinged, and swing rod outer end is connected by the traction end of drawstring and regulating mechanism.Regulating mechanism is fixed in dirt pocket lateral wall
There is a bracket, rope sheave is equipped with by shaft on bracket, the locking silk of restriction rope wheel rotation is installed, the end of drawstring twines on bracket
It is wound on rope sheave.
In addition, running through in the dirt pocket has more heat exchange pipes for preheating to boiler feed water or to boiler air inlet
Preheating.
The lye spraying mechanism is to be equipped with annular comb on the desulfurization removing nitric room top Nei Qiang, is uniformly divided on annular comb
Multiple spray heads are furnished with, and are provided with water pump in desulfurization removing nitric room, the suction pipe end of water pump is connected to ring row tube inlet.
It is additionally provided in the desulfurization removing nitric room again and washes smoke machine structure, be top and lye spray thrower in desulfurization removing nitric room
Structure lower part is provided with flat support plate, has annular stratum reticulare positioned at flat support plate periphery, is equipped on the upside of flat support plate and annular stratum reticulare
One layer is washed cigarette ball.Washing smoke machine structure further includes washing cigarette ball rabbling mechanism, and seal closure is fixed with below flat support plate, is fixed in seal closure
There are gearbox and motor, transmission input is connect with machine shaft, and gear box output end runs through vertically in flat support plate setting
Behind heart hole, stirring rod is installed, is pushed after stirring rod rotation and respectively washes the rolling of cigarette ball.
In the pressure fan housing bottom periphery edge mounting-fixing base, and floating body is uniformly installed below fixing seat, keeps pressure
Fan housing nature floating state, while the elevating lever includes lifting sleeve and free slide bar, the two matching is set in together, and
One lateral edge of lifting sleeve is axially provided with adjusting slide opening, is vertically and fixedly provided with sliding pin in free slide bar side, sliding pin, which is located at, adjusts slide opening
It is interior.To press fan housing to be located at shallower position below liquid level, the water seal layer nature shape that the region under liquid level and pressure fan housing between mouth is
Consistency of thickness under state, referred to as equilibrium water sealing.
Beneficial effects of the present invention: 1. present invention carry out dedusting and desulfurization removing nitric separation, can prevent dust from polluting alkali
Liquid causes lye waste situation to occur and precipitate reluctant problem appearance.And independently understand that dust deposits by dirt pocket
Object is handled respectively using desulfurization removing nitric room independent discharge reaction precipitate, and to different effluents, is reached efficient process and is prevented
The effect of secondary pollution.It is not only suitable for power station fire coal circulating fluidized bed boiler dust-removal and desulfurizing, it can also be using combustion coal chain boiler
Wet method sulphur removing and dust removing and gas cleaning, scrubbing CO_2 is high-efficient, and tail gas clean-up is thorough, applies and removes fluorination in stove industry
Hydrogen and kiln tail gas acid waste gas cleaning equipment etc., and to pelletizing, sintering machine tail desulfurization.
2. the present invention can effectively solve the problem that asking for Internal Flue water inlet using Internal Flue and the relationship for pressing fan housing to cooperate
Topic, it is ensured that Internal Flue is in always discharges fume straight up, and the feature that smoke outlet is upward, prevents discharge flue detour and increases
Resistance.Moreover, the pressure of pressure fan housing can control, even discharge fume without water pressure condition to be conducive to ignition of the boiler preliminary vacuum, with
Convenient for smooth ignition, chimney emission resistance is then changed by control pressure fan housing fording depth, while reaching smooth smoke evacuation
Maximization is contacted with water, and smoke evacuation and dedusting is made to realize best fit.
3. the present invention washes smoke machine structure using the cooperation of lye spraying mechanism, smoke evacuation resistance is not only reduced, and can be by
Flue gas and lye is set, by coming into full contact with reaction, to reach good desulfurization removing nitric effect from spherical surface in washing cigarette ball.
4. the dirt pocket and desulfurization removing nitric room in the present invention are connected state, water supply pipe continues moisturizing to dirt pocket, passes through
Overflow ducts can ensure that water level is always positioned at overflow ducts position in dirt pocket, both meet moisturizing problem in desulfurization removing nitric room,
Also the water seal for Internal Flue and pressure fan housing provides the guarantee of fixed level.
5. structure of the invention design is rationally, without carrying out larger change to existing chimney, it is only necessary to dock present device
Achieve that its function, installation is simple, and cycle period is long, and maintenance cost is low.The present invention also has the function of sampling Detection, so as to fixed
Phase supplements enough lye.Just installing postpone can longer-term limit non-maintaining operation, it is easy to operate, it is easy to use, be suitble to promote and apply.
Detailed description of the invention
Fig. 1 is the surface structure schematic diagram of one embodiment of the present invention.
Fig. 2 is the schematic diagram of the section structure of Fig. 1.
Fig. 3 is the partial profile structure of another embodiment of the present invention.
Fig. 4 is the structural schematic diagram of another embodiment of the present invention.
Figure label: 1 is, into cigarette connector, 2 is Internal Flue, and 3 be chimney, and 4 be dirt pocket, and 5 be desulfurization removing nitric room, and 6 are
Dust siltation chamber, 7 be precipitating chamber, and 8 be row silt dirt passway, and 9 be drain outlet mouthful, and 10 be dust discharge valve, and 11 be blowdown valve, and 12 are
Fan housing is pressed, 13 be discharge flue, and 14 be overflow ducts, and 15 be pump chamber, and 16 be water pump, and 17 be drinking-water pipe, and 18 be annular comb,
19 be spray head, and 20 be sampling pipe fitting, and 21 be to mend alkali liquor pipe, and 22 be valve, and 23 carry to hold alkali chamber, 24 to add alkali mouth, 25 to be flat
Plate, 26 be annular stratum reticulare, and 27 is wash cigarette ball, and 28 be seal closure, and 29 be gearbox, and 30 be motor, and 31 be stirring rod, and 32 be support
Bar, 33 be fixed pin shaft, and 34 be elevating lever, and 34a is lifting sleeve, and 34b is free slide bar, and 35 be swing rod, and 36 be drawstring, and 37 are
Bracket, 38 be rope sheave, and 39 be locking silk, and 40 be smoke outlet, and 41 be water inlet pipe, and 42 be dirt pocket bracket, and 43 be desulfurization removing nitric room
Bracket, 44 be linker, and 45 be heat exchange pipe, and 46 be water supply pipe, and 47 be fixing seat, and 48 be floating body, and 49 is adjust slide opening, and 50 are
Sliding pin, 51 be liquid level, and 52 be equilibrium water sealing.
Specific embodiment
Embodiment 1: boiler exhaust gas purification system as shown in Figure 1, main body include dirt pocket 4 and desulfurization removing nitric room 5, master
Body two sides are provided with dirt pocket bracket 42 and desulfurization removing nitric room bracket 43, are fixedly mounted on boiler chimney 3 by two side stands 37
Smoke evacuation outlet two sides setting fixed frame (fixed frame is not shown in figure) on, wherein being exported into cigarette connector 1 and boiler exhaust gas
Connection is arranged silt dirt passway 8 and drain outlet mouthful 9 and is docked respectively with row's silt dirt pipeline and blow-off line sealing.Whole system peace
Dress is simple, and after installation to dirt pocket 4 plus water and into desulfurization removing nitric room 5 plus after alkali, then debugging can be just after pressure 12 height of fan housing
It is often used.
As shown in Fig. 2, the top between the dirt pocket 4 and desulfurization removing nitric room 5 of the system is connected to by discharge flue 13, in
Portion is connected to by overflow ducts 14.Flue gas from dirt pocket 4 is most of to be entered in desulfurization removing nitric room 5 from discharge flue 13, few
Part enters in desulfurization removing nitric room 5 from overflow ducts 14.4 top of dirt pocket is equipped with water supply pipe 46, and after moisturizing, overflow is logical
Road 14 is mainly used for discharging water inlet into desulfurization removing nitric room 5 from dirt pocket 4, while meeting 4 default height water level of dirt pocket,
Guarantee there is enough reactions and cycling use of water in desulfurization removing nitric room 5.It is logical positioned at overflow that liquid level is able to maintain in the case where supplying water enough
14 position of road, 5 top of desulfurization removing nitric room, which is equipped with, mends alkali liquor pipe 21, and liquid level is kept to be lower than 14 position of overflow ducts.Desulfurization removing nitric
The linker 44 of 5 side wall of room can judge its internal liquid level height, and desulfurization removing nitric room 5 can also be detected using liquid level sensor
Interior liquid level, and solenoid valve is installed on water supply pipe 46, when opening solenoid valve realization is persistently supplied water, passes through and monitor desulfurization
Liquid level sensor altitude range in denitrogenation room 5 carries out moisturizing or stopping beyond control 46 solenoid valve of water supply pipe after the range
Moisturizing.
As shown in Figure 2, it is fixed with Internal Flue 2 in dirt pocket 4, the lower end of the Internal Flue 2 is drawn from 4 side wall of dirt pocket
It is tightly connected afterwards with vertical into cigarette connector 1, and the smoke outlet 40 of 2 upper end of Internal Flue exceeds overflow ducts 14.As it can be seen that this
It is upward that Internal Flue 2 in embodiment is erected at 40 direction of smoke outlet on liquid level, inserts in subsurface knot relative to existing
Structure, the program are more advantageous to smooth smoke evacuation.There is a pressure fan housing 12 in the outside ring set of Internal Flue 2 again simultaneously, presses fan housing 12
It is the tubular structure of upper end sealing, pressure fan housing 12 can keep lower edge to be located under liquid level by its self weight, upwards lifting pressure wind
Cover 12 can change it and be inserted into liquid level depth degree.The upper end of pressure fan housing 12 passes through the tune being arranged outside transmission mechanism and dirt pocket 4
Mechanism driving connection is saved, changes 12 height of pressure fan housing by regulating mechanism.Fig. 2 can also be seen that for controlling pressure fan housing 12
Transmission mechanism be that support rod 32 is fixed at the top of dirt pocket 4, swing rod is hinged with by fixed pin shaft 33 at the top of support rod 32
35, pressure 12 top vertical of fan housing is fixed with elevating lever 34, swing rod hinged by pin shaft and the mark post inner end at the top of elevating lever 34
35 outer ends are connect by drawstring 36 with the traction end of regulating mechanism.As shown in Figure 1, regulating mechanism used by the present embodiment be
4 lateral wall of dirt pocket is fixed with bracket 37, is equipped with rope sheave 38 by shaft on bracket 37, constraint rope sheave is equipped on bracket 37
The locking silk 39 of 38 rotations, the end of drawstring 36 is wrapped on rope sheave 38.
Dirt pocket 4 is mainly used for absorbing the dust granules in flue dust, carries out independent dedusting to flue dust, can be to dirt pocket 4
Middle addition washing powder or detergent are to accelerate gas washing effect.The bottom of dirt pocket 4 is dust siltation chamber 6, dust siltation 6 bottom of chamber
There is row silt dirt passway 8 and dust discharge valve 10 is installed.The bottom of desulfurization removing nitric room 5 is precipitating chamber 7, and precipitating 7 bottom of chamber has blowdown logical
Blowdown valve 11, periodical blowdown simultaneously are installed in road junction 9.6 bottom of chamber and the installation of precipitating 7 bottom of chamber can also be deposited for monitoring in dust
The sensor of sediment degree, and dust discharge valve 10 and blowdown valve 11 are realized to the function for automatically controlling blowdown using solenoid valve
Energy.
The top of desulfurization removing nitric room 5 is chimney 3, and the lower part positioned at 5 inner cavity top of desulfurization removing nitric room and throat is provided with
Lye spraying mechanism.As shown in Fig. 2, the lye spraying mechanism in the present embodiment is equipped on 5 inner cavity top of desulfurization removing nitric room
Annular comb 18 is evenly distributed with multiple spray heads 19 on annular comb 18, and is provided with closed water pump in desulfurization removing nitric room 5
Room 15 is equipped with water pump 16 in pump chamber 15, and 17 end of drinking-water pipe of water pump 16 is connected to annular 18 entrance of comb, water pump 16
Water inlet pipe 41 is installed filter screen and is located under the liquid level of desulfurization removing nitric room 5.Sampling pipe fitting 20, sampling are connected on drinking-water pipe 17
Pipe fitting 20 is located at the outside of desulfurization removing nitric room 5, in order to regular sampling Detection, is determined according to pH value in reaction solution plus alkali is real
Border, and monitoring reaction solution concentration and other indexs.It mends alkali liquor pipe 21 and valve 22 is connected to and be provided with water pipe, mend alkali liquor pipe 21
Upside is connected with appearance alkali chamber 23, holds side setting plus alkali mouth 24 and the sealing cover of alkali chamber 23, opens valve 22 to benefit alkali liquor pipe 21
When interior water filling, carries limewash or sodium hydroxide enters in desulfurization removing nitric room 5.For example, NaOH, which is added, to be made in desulfurization removing nitric room 5
The solution that formation pH value is 10~12, NaOH solution introduce in desulfurization removing nitric room 5 in the way of inversely absorbing and from dedusting
4 flue gas of room sufficiently reacts, and generates NaSO3And Na2SO4Sewage solution.Recycle another benefit alkali liquor pipe 21 into desulfurization removing nitric room 5
Launch desulfurizing agent Ca(OH)2, desulfurizing agent Ca(OH is calculated according to sulfur content in flue gas)2Injected volume, make itself and NaSO3And Na2SO4
Sufficiently reaction generates Ca(SO3)2And CaSO4Precipitate suspended particulate.
The present embodiment have low energy consumption, system integration occupied area is small, operating cost is low, it is easy to operate, without blocking, pressure
The advantages such as various sulphur-fixing agents are lost less and are applicable in resistance.
Embodiment 2: on that basis of example 1, the same thing is not repeated, the difference is that be arranged in desulfurization removing nitric room 5 again
Smoke machine structure is washed, is in 5 internal upper part of desulfurization removing nitric room and lye spraying mechanism lower part is provided with flat support plate 25, is located at flat support plate 25
There is annular stratum reticulare 26 on periphery, is equipped with one layer positioned at the upside of flat support plate 25 and annular stratum reticulare 26 and washes cigarette ball 27.Wash smoke machine structure also
Including washing 27 rabbling mechanism of cigarette ball, it is fixed with seal closure 28 below flat support plate 25,29 He of gearbox is fixed in seal closure 28
Motor 30,29 input terminal of gearbox are connect with 30 shaft of motor, and 29 output end of gearbox runs through vertically in the flat setting of support plate 25
Behind heart hole, stirring rod 31 is installed, stirring rod 31 pushes after rotating respectively washes the rolling of cigarette ball 27.
The present embodiment is after embodiment 1 is by the processing of flue gas dedirt, in desulfurization removing nitric room 5 in the case that flue gas is substantially dustless
Interior utilization washes cigarette ball 27 and absorbs slurries, forms flowing water film from up to down in smoking ball surface.Utilize the mistake of moisture film mass transfer
Journey is that gas-liquid is made to form emulsion layer, not only in chemical absorbing and fast, liquid film always close to neutrality, can make overall process keep it is high and
Stable mass transfer rate is a kind of outstanding high-efficiency low-resistance desulfurization mechanism.
Embodiment 3: on that basis of example 1, the same thing is not repeated, the difference is that the present embodiment is using as shown in Figure 3
Heat exchange structure is set in dirt pocket 4, through there are more heat exchange pipes 45 in dirt pocket 4, can be used for adding boiler feed water
Heat passes through boiler water inlet pipe in the total input terminal of heat exchange pipe 45 and output end, pre- to preheating cold water, or to boiler air inlet
Heat reuses the thermal energy of smoke stack emission.
Embodiment 4: as shown in figure 4, on that basis of example 1, the same thing is not repeated, the difference is that the present embodiment is being pressed
Fan housing bottom periphery edge mounting-fixing base 47, and floating body 48 is uniformly installed below fixing seat 47.Make in the buoyancy of floating body 48
Under, pressure fan housing 12 is at nature floating state.Height of the usual fixing seat 47 in the installation site of pressure 12 side wall of fan housing
It can be adjusted when equipment is assembled, to meet different boiler exhaust gas regulatory demands.Floating body is guaranteeing pressure fan housing in floating
When state, elevating lever 34 does not constitute constraint to pressure fan housing 12, so including lifting sleeve 34a and free slide bar by elevating lever 34
34b two parts, and the two matching is set in together.It is axially provided in one lateral edge of lifting sleeve simultaneously and adjusts slide opening 49, in freedom
Slide bar side is vertically and fixedly provided with sliding pin 50, and sliding pin, which is located at, to be adjusted in slide opening.But elevating lever still is able to be controlled by swing rod 35, with full
Foot emergency demand.The present embodiment can guarantee that fan housing is pressed to have automatic regulation function, and guarantee that pressure fan housing is located at below liquid level
Shallower position, the water seal layer consistency of thickness under natural conditions that the region between liquid level 51 and the lower mouth for pressing fan housing 12 is are referred to as flat
Hengshui sealing 52.By adjusting fixing seat in pressure fan housing lower edge height, the thickness of equilibrium water sealing can be changed.The present embodiment
Mainly it is self-possessed using floating body and pressure fan housing and realizes automatic adjustment, special circumstances (such as dust blocks pressure fan housing mouth and causes to be vented
When unsmooth, or in exhaust when still having flue dust and excessive fume amount) under just adjusted by swing rod 35.
Claims (7)
1. a kind of boiler exhaust gas purification system, which is characterized in that including dirt pocket and desulfurization removing nitric room, top between the two is logical
Discharge flue connection is crossed, middle part is connected to by overflow ducts；Dirt pocket top is equipped with water supply pipe, keeps liquid level position in dirt pocket
In overflow ducts mouth position, and the indoor liquid level of desulfurization removing nitric is kept to be not higher than overflow ducts mouth position, on desulfurization removing nitric room
Portion is equipped with benefit alkali liquor pipe；Internal Flue is fixed in dirt pocket, the lower end of the Internal Flue after the extraction of dirt pocket side wall with
Vertical connects into cigarette joint sealing, connects into cigarette connector and boiler exhaust gas outlet；Internal Flue upper end exceeds overflow ducts,
The outside ring set of Internal Flue has a pressure fan housing, and the lower edge of fan housing is pressed to be located under liquid level, the pressure fan housing by transmission mechanism with
The regulating mechanism transmission connection being arranged outside dirt pocket can change the height of paddling of pressure fan housing by regulating mechanism；It is described to remove
The bottom of dirt room and desulfurization removing nitric room is respectively dust siltation chamber and precipitating chamber and is respectively arranged with valve；The top of desulfurization removing nitric room
For chimney, the desulfurization removing nitric room top Nei Qiang is provided with lye spraying mechanism.
2. according to the boiler exhaust gas purification system of claim+described, which is characterized in that for controlling the transmission mechanism of pressure fan housing
It is that support rod is fixed at the top of dirt pocket, support bar top is hinged with swing rod by fixed pin shaft, and pressure fan housing top vertical is solid
Surely there is an elevating lever, hinged by pin shaft and the mark post inner end at the top of elevating lever, swing rod outer end passes through drawstring and regulating mechanism
Traction end connection.
3. boiler exhaust gas purification system according to claim 2, which is characterized in that regulating mechanism is in dirt pocket lateral wall
It is fixed with bracket, rope sheave is equipped with by shaft on bracket, the locking silk of restriction rope wheel rotation, the end of drawstring are installed on bracket
End is wrapped on rope sheave.
4. boiler exhaust gas purification system according to claim 1, which is characterized in that running through in the dirt pocket has more
Heat exchange pipe is used to preheat boiler feed water or to boiler charge heating.
5. boiler exhaust gas purification system according to claim 1, which is characterized in that the lye spraying mechanism is in desulfurization
The denitrogenation room top Nei Qiang is equipped with annular comb, multiple spray heads is evenly distributed on annular comb, and set in desulfurization removing nitric room
It is equipped with water pump, the suction pipe end of water pump is connected to ring row tube inlet.
6. boiler exhaust gas purification system according to claim 1 or 5, which is characterized in that in the desulfurization removing nitric room also
It is provided with and washes smoke machine structure, be the top and lye spraying mechanism lower part is provided with flat support plate in desulfurization removing nitric room, be located at flat support plate
There is annular stratum reticulare on periphery, is equipped with one layer on the upside of flat support plate and annular stratum reticulare and washes cigarette ball,
Washing smoke machine structure further includes washing cigarette ball rabbling mechanism, and seal closure is fixed with below flat support plate, is fixed with speed change in seal closure
Case and motor, transmission input are connect with machine shaft, after gear box output end runs through the centre bore of flat support plate setting vertically,
Stirring rod is installed, is pushed after stirring rod rotation and respectively washes the rolling of cigarette ball.
7. boiler exhaust gas purification system according to claim 1, which is characterized in that pacify in the pressure fan housing bottom periphery edge
Fixing seat is filled, and floating body is uniformly installed below fixing seat, keeps pressure fan housing nature floating state, while the elevating lever packet
Lifting sleeve and free slide bar are included, the two matching is set in together, and is axially provided with adjusting slide opening in one lateral edge of lifting sleeve,
Free slide bar side is vertically and fixedly provided with sliding pin, and sliding pin, which is located at, to be adjusted in slide opening.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018115745975 | 2018-12-21 | ||
| CN201811574597.5A CN109631069A (en) | 2018-12-21 | 2018-12-21 | Boiler exhaust gas purification system |
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| Publication Number | Publication Date |
|---|---|
| CN109869733A true CN109869733A (en) | 2019-06-11 |
| CN109869733B CN109869733B (en) | 2020-01-24 |
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|---|---|---|---|
| CN201811574597.5A Pending CN109631069A (en) | 2018-12-21 | 2018-12-21 | Boiler exhaust gas purification system |
| CN201910306357.5A Active CN109869733B (en) | 2018-12-21 | 2019-04-17 | Boiler smoke exhaust purification system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811574597.5A Pending CN109631069A (en) | 2018-12-21 | 2018-12-21 | Boiler exhaust gas purification system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1194223A (en) * | 1997-09-19 | 1999-04-09 | Mametora Noki Kk | Exhaust smoke cleaning unit for garbage incinerator |
| CN202113765U (en) * | 2011-05-26 | 2012-01-18 | 兴业皮革科技股份有限公司 | Boiler fume treatment system |
| CN205402765U (en) * | 2016-02-15 | 2016-07-27 | 上海腾玉节能科技有限公司 | Burning tail gas of environment -friendly mill purifies exhaust stacks |
| CN205796820U (en) * | 2016-05-29 | 2016-12-14 | 熊艳 | A kind of desulfurating dust-removing equipment |
| CN206334530U (en) * | 2016-10-26 | 2017-07-18 | 华能重庆珞璜发电有限责任公司 | A kind of anti-blocking cleaning device for flue gas desulfurization device |
| CN207371328U (en) * | 2017-10-26 | 2018-05-18 | 曲洋辰 | A kind of boiler of power plant tail gas desulfurization denitrification apparatus |
-
2018
- 2018-12-21 CN CN201811574597.5A patent/CN109631069A/en active Pending
-
2019
- 2019-04-17 CN CN201910306357.5A patent/CN109869733B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1194223A (en) * | 1997-09-19 | 1999-04-09 | Mametora Noki Kk | Exhaust smoke cleaning unit for garbage incinerator |
| CN202113765U (en) * | 2011-05-26 | 2012-01-18 | 兴业皮革科技股份有限公司 | Boiler fume treatment system |
| CN205402765U (en) * | 2016-02-15 | 2016-07-27 | 上海腾玉节能科技有限公司 | Burning tail gas of environment -friendly mill purifies exhaust stacks |
| CN205796820U (en) * | 2016-05-29 | 2016-12-14 | 熊艳 | A kind of desulfurating dust-removing equipment |
| CN206334530U (en) * | 2016-10-26 | 2017-07-18 | 华能重庆珞璜发电有限责任公司 | A kind of anti-blocking cleaning device for flue gas desulfurization device |
| CN207371328U (en) * | 2017-10-26 | 2018-05-18 | 曲洋辰 | A kind of boiler of power plant tail gas desulfurization denitrification apparatus |
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| CN109869733B (en) | 2020-01-24 |
| CN109631069A (en) | 2019-04-16 |
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