CN109578985A - A kind of biomass combustion device and method - Google Patents
A kind of biomass combustion device and method Download PDFInfo
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- CN109578985A CN109578985A CN201811559314.XA CN201811559314A CN109578985A CN 109578985 A CN109578985 A CN 109578985A CN 201811559314 A CN201811559314 A CN 201811559314A CN 109578985 A CN109578985 A CN 109578985A
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- flue
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B40/00—Combustion apparatus with driven means for feeding fuel into the combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
-
- 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
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/10—Under-feed arrangements
- F23K3/14—Under-feed arrangements feeding by screw
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
- F23L15/04—Arrangements of recuperators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/007—Supplying oxygen or oxygen-enriched air
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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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention belongs to a kind of biomass combustion device and methods；Including burner hearth, the side of burner hearth is equipped with material inlet and side air import, and the bottom of burner hearth is equipped with bottom air import, and the other side of burner hearth is equipped with dust outlet and dust import；Material inlet is connected with feed unit, dust outlet is connected with the import of cyclone separator, the discharge port of cyclone separator is connected with dust import, and the gaseous phase outlet of cyclone separator is connected by pendant superheater unit, flue shaft element, sack cleaner and air-introduced machine with flue gas desulphurization system；Have the advantages that simple structure and reasonable design, can long-period stable operation, and then generate high quality steam, with some vapor generated electricity not be only business processes solid waste while generate economic benefit.
Description
Technical field
The invention belongs to biomass boiler technology fields, and in particular to a kind of biomass combustion device and method.
Background technique
Biomass mainly includes the solid waste etc. after furfural dregs, sawdust slag, straw utilization, this some materials is without real
The utility value on border, improper use or long-term stack can cause serious pollution to environment in the environment；It is raw since 2017
The processing of substance is mostly burned with miniature boiler and is carried out, but biomass material have light weight, calorific value it is low be not easy to be utilized lack
It falls into, when being handled by miniature boiler, there is following defects: 1, fluctuation of service；2, stable steaming can not be generated
Vapour；3, since the boiler specification used is smaller, consideration, most enterprises can not be concentrated in terms of tails dedusting, desulphurization and denitration
Generally by the way of direct emission, environment is seriously polluted；4, large-sized boiler does not have successful operating experience；Drawbacks described above is direct
Cause biomass to be unable to fully utilize, do not simply fail to bring economic benefit to enterprise, and occupies a large amount of place for a long time and can not
The problem of processing.
Summary of the invention
The object of the invention is that providing a kind of simple structure and reasonable design, Neng Gouchang to solve the above-mentioned problems
The steam of cycle stability operation and then generation high quality, generated electricity not only business processes solid waste with some vapor
While generate economic benefit a kind of biomass combustion device and method.
The present invention is through the following technical solutions to achieve the above objectives: include burner hearth, the side of the burner hearth is equipped with raw material
Import and side air import, the bottom of burner hearth are equipped with bottom air import, and the other side of burner hearth is equipped with dust outlet and dust
Import；The material inlet is connected with feed unit, and dust outlet is connected with the import of cyclone separator, and cyclone separator goes out
Material mouth is connected with dust import, and the gaseous phase outlet of cyclone separator is removed by pendant superheater unit, flue shaft element, pocket type
Dirt device and air-introduced machine are connected with flue gas desulphurization system；The feed unit includes feed bin, and feed bin is connected with weighing belt, and weighing belt is logical
It crosses the first belt conveyor, small feed bin, the second belt conveyor and feed screw to be connected with material inlet, the belt
Scale is connected by third belt conveyor, biomass silo and the 4th belt conveyor with feed screw.
Preferably, the pendant superheater unit includes pendant superheater vertical shaft, a lateral roof of pendant superheater vertical shaft
Equipped with the vertical shaft air inlet that the gaseous phase outlet with cyclone separator is connected, another upper lateral part of pendant superheater vertical shaft is equipped with vertical shaft
Gas outlet is equipped with the partition of lower openings, in the other side of pendant superheater vertical shaft between vertical shaft air inlet and vertical shaft gas outlet
Portion is successively arranged high temperature superheater, medium temperature overheater and the first economizer from the bottom to top.
Preferably, the flue shaft element includes flue vertical shaft, and the top of flue vertical shaft is equipped with flue vertical shaft air inlet,
The bottom of flue vertical shaft is equipped with flue vertical shaft gas outlet, and flue vertical shaft air inlet is connected with vertical shaft gas outlet, flue vertical shaft outlet
Mouth is connected with the import of sack cleaner, and the inside of flue vertical shaft is from top to bottom equipped with the second economizer, the first air preheater
Unit and the second air preheater unit；The air intlet of first air preheater unit is connected with the first air blower, and first is empty
The air outlet slit of air preheater unit is connected with side air import；The air intlet of second air preheater unit and the second drum
Blower is connected, and the air outlet slit of the second air preheater unit is connected with bottom air import.
Preferably, the high temperature superheater is one, and medium temperature overheater is three, and the first economizer is two.
Preferably, second economizer is one.
Preferably, first air preheater unit includes several first air preheaters, several first air
Preheater is connected in series, and the second air preheater unit includes several second air preheaters, several second air preheats
Device is connected in series；First air preheater and the second air preheater are arranged in a crossed manner.
Preferably, first air preheater is three, and the second air preheater is three.
Preferably, the pipeline between the air outlet slit and side air import of first air preheater unit is equipped with
First regulating valve, the pipeline between the air outlet slit and bottom air import of the second air preheater unit are equipped with second and adjust
Valve.
A kind of method of biomass combustion device, this method comprises the following steps:
Step 1: make the clinker in feed bin by being delivered to small feed bin by the first belt conveyor after belt scale metering
It is interior；
Step 2: make the biomass slag in feed bin by being delivered to life by third belt conveyor after belt scale metering
In substance feed bin；
Step 3: the clinker in small feed bin is conveyed by the second belt conveyor, feed screw and material inlet
To burner hearth, use clinker as the bottom material of burner hearth；
Step 4: the biomass slag in biomass silo passes through and the 4th belt conveyor, feed screw and raw material
Import, which is delivered in burner hearth, burns；Combustion case is observed when biomass slag initial combustion, and is filled by the second Belt Conveying
The additive amount of working the slag is set, to achieve the purpose that establish bed；There is bed during the burning of biomass slag to move up
Or bed it is unstable when, by the additive amount of the second belt conveyor working the slag, to achieve the purpose that stable bed；
Step 5: in burner hearth when normal combustion, the cigarette wind with dust is from the dust outlet of burner hearth and cyclone separator
Import enters in cyclone separator, and solid dust comes back to furnace by the discharge port and dust import of cyclone separator after separation
Circulating combustion is carried out in thorax；
Step 6: gas phase in step 5 after cyclone separator separation by the gaseous phase outlet of cyclone separator and vertical shaft into
Port enters in pendant superheater vertical shaft, and gas phase enters the other side of pendant superheater vertical shaft and successively lead to around the bottom of partition
High temperature superheater, medium temperature overheater and the first economizer is crossed to enter in vertical shaft gas outlet；
Step 7: being entered in flue vertical shaft into the gas phase in vertical shaft gas outlet by flue vertical shaft air inlet, gas phase according to
It is secondary to pass through the second economizer, the first air preheater unit and the second air preheater unit, and arranged by flue vertical shaft gas outlet
Out, the gas phase of discharge is by entering flue gas desulphurization system by air-introduced machine after sack cleaner dedusting, and carries out desulfurization to flue gas
And depth dust removal process；
Step 8: the first air blower will be transported in the first air preheater unit after air pressurized and preheat, preheating
Forced air afterwards is entered in burner hearth by the first regulating valve and side air import provides oxygen for the burning of biomass slag；First
Regulating valve is used to adjust the flow of forced air after preheating；
Step 9: the second air blower will be transported in the second air preheater unit after air pressurized and preheat, preheating
Forced air afterwards is entered in burner hearth by the second regulating valve and bottom air import, the forced air that bottom air import enters
Oxygen is provided under the premise of pressure capable of being provided for the foundation of biomass slag burning bed for the burning of biomass slag；Second regulating valve
For adjust preheating after forced air flow.
According to a kind of biomass combustion device and method made of above scheme, by mixing portion inside biomass material
Clinker is divided to solve the problems, such as that material quality is light, raw material calorific value is low to be stablized by changing the structure of fluidized-bed combustion boiler to solve
The problem of operation, may be implemented the stable operation of biomass boiler, is produced by biomass boiler by reasonably optimizing package unit
Go out 5.3MPa (G), 480 DEG C of mesohigh superheated steam, which is used to generate electricity, and brings benefit to enterprise, simultaneously
Also it solves the problems, such as the processing of biomass, realizes circular economy；With simple structure and reasonable design, can long period stablize
Operation, and then generate high quality steam, with some vapor generated electricity not be only business processes solid waste while production
The advantages of raw economic benefit.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
Bright specific embodiment, identical label indicates identical component in the various figures.To make simplified form, in each figure only schematically
Ground indicates part relevant to invention, they do not represent its practical structures as product.
As shown in Figure 1, the present invention is a kind of biomass combustion device and method, wherein device part includes burner hearth 1, described
The side of burner hearth 1 is equipped with material inlet 2 and side air import 3, and the bottom of burner hearth 1 is equipped with bottom air import 4, burner hearth it is another
Side is equipped with dust outlet 5 and dust import 6；The material inlet 2 is connected with feed unit, dust outlet 5 and cyclonic separation
The import of device 7 is connected, and the discharge port of cyclone separator 7 is connected with dust import 6, and the gaseous phase outlet of cyclone separator 7 passes through screen
Formula super heater unit, flue shaft element, sack cleaner 8 and air-introduced machine 9 are connected with flue gas desulphurization system 36；The charging is single
Member includes feed bin 10, and feed bin 10 is connected with weighing belt 11, and weighing belt 11 passes through the first belt conveyor 12, small feed bin 13, the
Two belt conveyors 14 and feed screw 15 are connected with material inlet 2, and the weighing belt 11 is filled by third Belt Conveying
It sets 16, biomass silo 17 and the 4th belt conveyor 18 is connected with feed screw 15.
Preferably, the pendant superheater unit includes pendant superheater vertical shaft 19, the side of pendant superheater vertical shaft 19
Top is equipped with the vertical shaft air inlet 20 that is connected with the gaseous phase outlet of cyclone separator 7, on the other side of pendant superheater vertical shaft 19
Portion is equipped with vertical shaft gas outlet 21, and the partition 22 of lower openings is equipped between vertical shaft air inlet 20 and vertical shaft gas outlet 21, shields formula mistake
High temperature superheater 23, medium temperature overheater 24 and the first economizer are successively arranged inside the other side of hot device vertical shaft 19 from the bottom to top
25。
Preferably, the flue shaft element includes flue vertical shaft 26, the top of flue vertical shaft 26 be equipped with flue vertical shaft into
The bottom of port 27, flue vertical shaft 26 is equipped with flue vertical shaft gas outlet 28, flue vertical shaft air inlet 27 and 21 phase of vertical shaft gas outlet
Even, flue vertical shaft gas outlet 28 is connected with the import of sack cleaner 8, and the inside of flue vertical shaft 26 is from top to bottom equipped with the second province
Coal device 29, the first air preheater unit and the second air preheater unit；The air intlet of first air preheater unit with
First air blower 30 is connected, and the air outlet slit of the first air preheater unit is connected with side air import 3；Second air preheat
The air intlet of device unit is connected with the second air blower 31, the air outlet slit of the second air preheater unit and bottom air import
4 are connected.
Preferably, the high temperature superheater 23 is one, and medium temperature overheater 24 is three, and the first economizer 25 is two.
Preferably, second economizer 29 is one.
Preferably, first air preheater unit includes several first air preheaters 32, several first skies
Air preheater 32 is connected in series, and the second air preheater unit includes several second air preheaters 33, several second skies
Air preheater 33 is connected in series；First air preheater 32 and the second air preheater 33 are arranged in a crossed manner.
Preferably, first air preheater 32 is three, and the second air preheater 33 is three.
Preferably, it is set on the pipeline between the air outlet slit and side air import 3 of first air preheater unit
There is the first regulating valve 34, the pipeline between the air outlet slit and bottom air import 4 of the second air preheater unit is equipped with the
Two regulating valves 35.
A kind of method of biomass combustion device, this method comprises the following steps:
Step 1: it is delivered to after measuring the clinker in feed bin 10 by weighing belt 11 by the first belt conveyor 12 small
In feed bin 13；
Step 2: defeated by third belt conveyor 16 after measuring the biomass slag in feed bin 10 by weighing belt 11
It send into biomass silo 17；
Step 3: by the clinker in small feed bin 13 by the second belt conveyor 14, feed screw 15 and raw material into
Mouth 2 is delivered in burner hearth 1, uses clinker as the bottom material of burner hearth 1；
Step 4: the biomass slag in biomass silo 17 passes through and the 4th belt conveyor 18, feed screw 15
It is delivered in burner hearth 1 and burns with material inlet 2；Combustion case is observed when biomass slag initial combustion, and passes through the second skin
Additive amount with 14 working the slag of conveying device, to achieve the purpose that establish bed；Go out during the burning of biomass slag
When existing bed moves up or bed is unstable, by the additive amount of 14 working the slag of the second belt conveyor, to reach stable bed
The purpose of layer；
Step 5: in burner hearth 1 when normal combustion, dust outlet 5 and cyclone separator of the cigarette wind with dust from burner hearth 1
7 import enters in cyclone separator 7, after separation solid dust by the discharge port of cyclone separator 7 and dust import 6 again
It returns to and carries out circulating combustion in burner hearth 1；
Step 6: the gas phase after cyclone separator 7 separates in step 5 passes through the gaseous phase outlet and vertical shaft of cyclone separator 7
Air inlet 20 enters in pendant superheater vertical shaft 19, and gas phase enters the another of pendant superheater vertical shaft 19 around the bottom of partition 22
Side simultaneously passes sequentially through in high temperature superheater 23, medium temperature overheater 24 and the first economizer 25 entrance vertical shaft gas outlet 21；
Step 7: being entered in flue vertical shaft 26 into the gas phase in vertical shaft gas outlet 21 by flue vertical shaft air inlet 27,
Gas phase passes sequentially through the second economizer 29, the first air preheater unit and the second air preheater unit, and by flue vertical shaft
Gas outlet 28 is discharged, the gas phase of discharge by entering flue gas desulphurization system 36 by air-introduced machine 9 after 8 dedusting of sack cleaner, and
Desulfurization and depth dust removal process are carried out to flue gas；
Step 8: the first air blower 30 will be transported in the first air preheater unit after air pressurized and preheat, in advance
Forced air after heat is entered in burner hearth 1 by the first regulating valve 34 and side air import 3 provides oxygen for the burning of biomass slag
Gas；First regulating valve 34 is used to adjust the flow of forced air after preheating；
Step 9: the second air blower 31 will be transported in the second air preheater unit after air pressurized and preheat, in advance
Forced air after heat is entered in burner hearth 1 by the second regulating valve 35 and bottom air import 4, what bottom air import 4 entered
Forced air provides oxygen under the premise of capable of providing pressure for the foundation of biomass slag burning bed for the burning of biomass slag；The
Two regulating valves 35 are used to adjust the flow of forced air after preheating.
Heretofore described biomass is preferably the solid biomass waste generated in biomass enterprise production process,
The present invention overcomes biomass, and there is light weights, the low traditional concept for being not easy to be utilized of calorific value, by carrying out it with clinker
It mixes, is sent into burner hearth 1 and burns, and pendant superheater unit, flue shaft element, pocket type are set in 1 tail portion of burner hearth and removed
Dirt device 8, air-introduced machine 9 and flue gas desulphurization system 36, instrument can not guarantee the more abundant of heat absorption and improve the thermal efficiency, into
And it is the profit that biomass enterprise creates bigizationner, and tail gas can be effectively treated, avoid it from polluting environment；The present invention exists
It is stable and easy to operate to have the characteristics that row while solution biology self problem, and can produce high-quality steam and sent out
Electricity not only can solve the processing problem of existing enterprise's solid waste, while by generating superheated steam, can not only expire
Sufficient enterprise can use some vapor and generate electricity to the use demand of steam, obtain benefit, realizing turns waste into wealth
Purpose, enterprise's (such as furfural mill) development produced using biomass can be efficiently solved by using the present invention
Bottleneck problem provides guarantee for the clean utilization of biomass, realizes the recycling economy development of biomass industry, thorough life
The fixed-end forces problem of substance industry.
In order to more clearly explain the present invention, it is further described now in conjunction with specific embodiment.It is specific real
Under applying for example:
Embodiment one
A kind of biomass combustion device, including burner hearth 1, the side of the burner hearth 1 be equipped with material inlet 2 and side air into
Mouth 3, the bottom of burner hearth 1 are equipped with bottom air import 4, and the other side of burner hearth is equipped with dust outlet 5 and dust import 6；The original
Material import 2 be connected with feed unit, dust outlet 5 is connected with the import of cyclone separator 7, the discharge port of cyclone separator 7 and
Dust import 6 is connected, and the gaseous phase outlet of cyclone separator 7 passes through pendant superheater unit, flue shaft element, sack cleaner
8 and air-introduced machine 9 be connected with flue gas desulphurization system 36；The feed unit includes feed bin 10, and feed bin 10 is connected with weighing belt 11, skin
Belt scale 11 passes through the first belt conveyor 12, small feed bin 13, the second belt conveyor 14 and feed screw 15 and raw material
Import 2 is connected, and the weighing belt 11 passes through third belt conveyor 16, biomass silo 17 and the 4th belt conveyor 18
It is connected with feed screw 15.The pendant superheater unit includes pendant superheater vertical shaft 19, pendant superheater vertical shaft 19
One lateral roof is equipped with the vertical shaft air inlet 20 that is connected with the gaseous phase outlet of cyclone separator 7, pendant superheater vertical shaft 19 it is another
Upper lateral part is equipped with vertical shaft gas outlet 21, and the partition 22 of lower openings, screen are equipped between vertical shaft air inlet 20 and vertical shaft gas outlet 21
High temperature superheater 23, medium temperature overheater 24 and first province's coal are successively arranged inside the other side of formula superheater vertical shaft 19 from the bottom to top
Device 25.The flue shaft element includes flue vertical shaft 26, and the top of flue vertical shaft 26 is equipped with flue vertical shaft air inlet 27, flue
The bottom of vertical shaft 26 is equipped with flue vertical shaft gas outlet 28, and flue vertical shaft air inlet 27 is connected with vertical shaft gas outlet 21, flue vertical shaft
Gas outlet 28 is connected with the import of sack cleaner 8, and the inside of flue vertical shaft 26 is from top to bottom equipped with the second economizer 29, first
Air preheater unit and the second air preheater unit；The air intlet of first air preheater unit and the first air blower 30
It is connected, the air outlet slit of the first air preheater unit is connected with side air import 3；The air of second air preheater unit
Import is connected with the second air blower 31, and the air outlet slit of the second air preheater unit is connected with bottom air import 4.The height
Warm superheater 23 is one, and medium temperature overheater 24 is three, and the first economizer 25 is two.Second economizer 29 is one
It is a.First air preheater unit includes several first air preheaters 32, several first air preheaters 32 string
Connection connection, the second air preheater unit include several second air preheaters 33, several second air preheaters 33 string
Connection connection；First air preheater 32 and the second air preheater 33 are arranged in a crossed manner.First air preheater 32 is three,
Second air preheater 33 is three.Between the air outlet slit and side air import 3 of first air preheater unit
Pipeline is equipped with the first regulating valve 34, the pipeline between the air outlet slit and bottom air import 4 of the second air preheater unit
It is equipped with the second regulating valve 35.
A kind of method of biomass combustion device, this method comprises the following steps:
Step 1: it is delivered to after measuring the clinker in feed bin 10 by weighing belt 11 by the first belt conveyor 12 small
In feed bin 13；
Step 2: defeated by third belt conveyor 16 after measuring the biomass slag in feed bin 10 by weighing belt 11
It send into biomass silo 17；
Step 3: by the clinker in small feed bin 13 by the second belt conveyor 14, feed screw 15 and raw material into
Mouth 2 is delivered in burner hearth 1, uses clinker as the bottom material of burner hearth 1；
Step 4: the biomass slag in biomass silo 17 passes through and the 4th belt conveyor 18, feed screw 15
It is delivered in burner hearth 1 and burns with material inlet 2；Combustion case is observed when biomass slag initial combustion, and passes through the second skin
Additive amount with 14 working the slag of conveying device, to achieve the purpose that establish bed；Go out during the burning of biomass slag
When existing bed moves up or bed is unstable, by the additive amount of 14 working the slag of the second belt conveyor, to reach stable bed
The purpose of layer；
Step 5: in burner hearth 1 when normal combustion, dust outlet 5 and cyclone separator of the cigarette wind with dust from burner hearth 1
7 import enters in cyclone separator 7, after separation solid dust by the discharge port of cyclone separator 7 and dust import 6 again
It returns to and carries out circulating combustion in burner hearth 1；
Step 6: the gas phase after cyclone separator 7 separates in step 5 passes through the gaseous phase outlet and vertical shaft of cyclone separator 7
Air inlet 20 enters in pendant superheater vertical shaft 19, and gas phase enters the another of pendant superheater vertical shaft 19 around the bottom of partition 22
Side simultaneously passes sequentially through in high temperature superheater 23, medium temperature overheater 24 and the first economizer 25 entrance vertical shaft gas outlet 21；
Step 7: being entered in flue vertical shaft 26 into the gas phase in vertical shaft gas outlet 21 by flue vertical shaft air inlet 27,
Gas phase passes sequentially through the second economizer 29, the first air preheater unit and the second air preheater unit, and by flue vertical shaft
Gas outlet 28 is discharged, the gas phase of discharge by entering flue gas desulphurization system 36 by air-introduced machine 9 after 8 dedusting of sack cleaner, and
Desulfurization and depth dust removal process are carried out to flue gas.
Embodiment two
A kind of biomass combustion device, including burner hearth 1, the side of the burner hearth 1 be equipped with material inlet 2 and side air into
Mouth 3, the bottom of burner hearth 1 are equipped with bottom air import 4, and the other side of burner hearth is equipped with dust outlet 5 and dust import 6；The original
Material import 2 be connected with feed unit, dust outlet 5 is connected with the import of cyclone separator 7, the discharge port of cyclone separator 7 and
Dust import 6 is connected, and the gaseous phase outlet of cyclone separator 7 passes through pendant superheater unit, flue shaft element, sack cleaner
8 and air-introduced machine 9 be connected with flue gas desulphurization system 36；The feed unit includes feed bin 10, and feed bin 10 is connected with weighing belt 11, skin
Belt scale 11 passes through the first belt conveyor 12, small feed bin 13, the second belt conveyor 14 and feed screw 15 and raw material
Import 2 is connected, and the weighing belt 11 passes through third belt conveyor 16, biomass silo 17 and the 4th belt conveyor 18
It is connected with feed screw 15.The pendant superheater unit includes pendant superheater vertical shaft 19, pendant superheater vertical shaft 19
One lateral roof is equipped with the vertical shaft air inlet 20 that is connected with the gaseous phase outlet of cyclone separator 7, pendant superheater vertical shaft 19 it is another
Upper lateral part is equipped with vertical shaft gas outlet 21, and the partition 22 of lower openings, screen are equipped between vertical shaft air inlet 20 and vertical shaft gas outlet 21
High temperature superheater 23, medium temperature overheater 24 and first province's coal are successively arranged inside the other side of formula superheater vertical shaft 19 from the bottom to top
Device 25.The flue shaft element includes flue vertical shaft 26, and the top of flue vertical shaft 26 is equipped with flue vertical shaft air inlet 27, flue
The bottom of vertical shaft 26 is equipped with flue vertical shaft gas outlet 28, and flue vertical shaft air inlet 27 is connected with vertical shaft gas outlet 21, flue vertical shaft
Gas outlet 28 is connected with the import of sack cleaner 8, and the inside of flue vertical shaft 26 is from top to bottom equipped with the second economizer 29, first
Air preheater unit and the second air preheater unit；The air intlet of first air preheater unit and the first air blower 30
It is connected, the air outlet slit of the first air preheater unit is connected with side air import 3；The air of second air preheater unit
Import is connected with the second air blower 31, and the air outlet slit of the second air preheater unit is connected with bottom air import 4.The height
Warm superheater 23 is one, and medium temperature overheater 24 is three, and the first economizer 25 is two.Second economizer 29 is one
It is a.First air preheater unit includes several first air preheaters 32, several first air preheaters 32 string
Connection connection, the second air preheater unit include several second air preheaters 33, several second air preheaters 33 string
Connection connection；First air preheater 32 and the second air preheater 33 are arranged in a crossed manner.First air preheater 32 is three,
Second air preheater 33 is three.Between the air outlet slit and side air import 3 of first air preheater unit
Pipeline is equipped with the first regulating valve 34, the pipeline between the air outlet slit and bottom air import 4 of the second air preheater unit
It is equipped with the second regulating valve 35.
A kind of method of biomass combustion device, this method comprises the following steps:
Step 1: it is delivered to after measuring the clinker in feed bin 10 by weighing belt 11 by the first belt conveyor 12 small
In feed bin 13；
Step 2: defeated by third belt conveyor 16 after measuring the biomass slag in feed bin 10 by weighing belt 11
It send into biomass silo 17；
Step 3: by the clinker in small feed bin 13 by the second belt conveyor 14, feed screw 15 and raw material into
Mouth 2 is delivered in burner hearth 1, uses clinker as the bottom material of burner hearth 1；
Step 4: the biomass slag in biomass silo 17 passes through and the 4th belt conveyor 18, feed screw 15
It is delivered in burner hearth 1 and burns with material inlet 2；Combustion case is observed when biomass slag initial combustion, and passes through the second skin
Additive amount with 14 working the slag of conveying device, to achieve the purpose that establish bed；Go out during the burning of biomass slag
When existing bed moves up or bed is unstable, by the additive amount of 14 working the slag of the second belt conveyor, to reach stable bed
The purpose of layer；
Step 5: in burner hearth 1 when normal combustion, dust outlet 5 and cyclone separator of the cigarette wind with dust from burner hearth 1
7 import enters in cyclone separator 7, after separation solid dust by the discharge port of cyclone separator 7 and dust import 6 again
It returns to and carries out circulating combustion in burner hearth 1；
Step 6: the gas phase after cyclone separator 7 separates in step 5 passes through the gaseous phase outlet and vertical shaft of cyclone separator 7
Air inlet 20 enters in pendant superheater vertical shaft 19, and gas phase enters the another of pendant superheater vertical shaft 19 around the bottom of partition 22
Side simultaneously passes sequentially through in high temperature superheater 23, medium temperature overheater 24 and the first economizer 25 entrance vertical shaft gas outlet 21；
Step 7: being entered in flue vertical shaft 26 into the gas phase in vertical shaft gas outlet 21 by flue vertical shaft air inlet 27,
Gas phase passes sequentially through the second economizer 29, the first air preheater unit and the second air preheater unit, and by flue vertical shaft
Gas outlet 28 is discharged, the gas phase of discharge by entering flue gas desulphurization system 36 by air-introduced machine 9 after 8 dedusting of sack cleaner, and
Desulfurization and depth dust removal process are carried out to flue gas；
Step 8: the first air blower 30 will be transported in the first air preheater unit after air pressurized and preheat, in advance
Forced air after heat is entered in burner hearth 1 by the first regulating valve 34 and side air import 3 provides oxygen for the burning of biomass slag
Gas；First regulating valve 34 is used to adjust the flow of forced air after preheating.
Embodiment three
A kind of biomass combustion device, including burner hearth 1, the side of the burner hearth 1 be equipped with material inlet 2 and side air into
Mouth 3, the bottom of burner hearth 1 are equipped with bottom air import 4, and the other side of burner hearth is equipped with dust outlet 5 and dust import 6；The original
Material import 2 be connected with feed unit, dust outlet 5 is connected with the import of cyclone separator 7, the discharge port of cyclone separator 7 and
Dust import 6 is connected, and the gaseous phase outlet of cyclone separator 7 passes through pendant superheater unit, flue shaft element, sack cleaner
8 and air-introduced machine 9 be connected with flue gas desulphurization system 36；The feed unit includes feed bin 10, and feed bin 10 is connected with weighing belt 11, skin
Belt scale 11 passes through the first belt conveyor 12, small feed bin 13, the second belt conveyor 14 and feed screw 15 and raw material
Import 2 is connected, and the weighing belt 11 passes through third belt conveyor 16, biomass silo 17 and the 4th belt conveyor 18
It is connected with feed screw 15.The pendant superheater unit includes pendant superheater vertical shaft 19, pendant superheater vertical shaft 19
One lateral roof is equipped with the vertical shaft air inlet 20 that is connected with the gaseous phase outlet of cyclone separator 7, pendant superheater vertical shaft 19 it is another
Upper lateral part is equipped with vertical shaft gas outlet 21, and the partition 22 of lower openings, screen are equipped between vertical shaft air inlet 20 and vertical shaft gas outlet 21
High temperature superheater 23, medium temperature overheater 24 and first province's coal are successively arranged inside the other side of formula superheater vertical shaft 19 from the bottom to top
Device 25.The flue shaft element includes flue vertical shaft 26, and the top of flue vertical shaft 26 is equipped with flue vertical shaft air inlet 27, flue
The bottom of vertical shaft 26 is equipped with flue vertical shaft gas outlet 28, and flue vertical shaft air inlet 27 is connected with vertical shaft gas outlet 21, flue vertical shaft
Gas outlet 28 is connected with the import of sack cleaner 8, and the inside of flue vertical shaft 26 is from top to bottom equipped with the second economizer 29, first
Air preheater unit and the second air preheater unit；The air intlet of first air preheater unit and the first air blower 30
It is connected, the air outlet slit of the first air preheater unit is connected with side air import 3；The air of second air preheater unit
Import is connected with the second air blower 31, and the air outlet slit of the second air preheater unit is connected with bottom air import 4.The height
Warm superheater 23 is one, and medium temperature overheater 24 is three, and the first economizer 25 is two.Second economizer 29 is one
It is a.First air preheater unit includes several first air preheaters 32, several first air preheaters 32 string
Connection connection, the second air preheater unit include several second air preheaters 33, several second air preheaters 33 string
Connection connection；First air preheater 32 and the second air preheater 33 are arranged in a crossed manner.First air preheater 32 is three,
Second air preheater 33 is three.Between the air outlet slit and side air import 3 of first air preheater unit
Pipeline is equipped with the first regulating valve 34, the pipeline between the air outlet slit and bottom air import 4 of the second air preheater unit
It is equipped with the second regulating valve 35.
A kind of method of biomass combustion device, this method comprises the following steps:
Step 1: it is delivered to after measuring the clinker in feed bin 10 by weighing belt 11 by the first belt conveyor 12 small
In feed bin 13；
Step 2: defeated by third belt conveyor 16 after measuring the biomass slag in feed bin 10 by weighing belt 11
It send into biomass silo 17；
Step 3: by the clinker in small feed bin 13 by the second belt conveyor 14, feed screw 15 and raw material into
Mouth 2 is delivered in burner hearth 1, uses clinker as the bottom material of burner hearth 1；
Step 4: the biomass slag in biomass silo 17 passes through and the 4th belt conveyor 18, feed screw 15
It is delivered in burner hearth 1 and burns with material inlet 2；Combustion case is observed when biomass slag initial combustion, and passes through the second skin
Additive amount with 14 working the slag of conveying device, to achieve the purpose that establish bed；Go out during the burning of biomass slag
When existing bed moves up or bed is unstable, by the additive amount of 14 working the slag of the second belt conveyor, to reach stable bed
The purpose of layer；
Step 5: in burner hearth 1 when normal combustion, dust outlet 5 and cyclone separator of the cigarette wind with dust from burner hearth 1
7 import enters in cyclone separator 7, after separation solid dust by the discharge port of cyclone separator 7 and dust import 6 again
It returns to and carries out circulating combustion in burner hearth 1；
Step 6: the gas phase after cyclone separator 7 separates in step 5 passes through the gaseous phase outlet and vertical shaft of cyclone separator 7
Air inlet 20 enters in pendant superheater vertical shaft 19, and gas phase enters the another of pendant superheater vertical shaft 19 around the bottom of partition 22
Side simultaneously passes sequentially through in high temperature superheater 23, medium temperature overheater 24 and the first economizer 25 entrance vertical shaft gas outlet 21；
Step 7: being entered in flue vertical shaft 26 into the gas phase in vertical shaft gas outlet 21 by flue vertical shaft air inlet 27,
Gas phase passes sequentially through the second economizer 29, the first air preheater unit and the second air preheater unit, and by flue vertical shaft
Gas outlet 28 is discharged, the gas phase of discharge by entering flue gas desulphurization system 36 by air-introduced machine 9 after 8 dedusting of sack cleaner, and
Desulfurization and depth dust removal process are carried out to flue gas；
Step 8: the first air blower 30 will be transported in the first air preheater unit after air pressurized and preheat, in advance
Forced air after heat is entered in burner hearth 1 by the first regulating valve 34 and side air import 3 provides oxygen for the burning of biomass slag
Gas；First regulating valve 34 is used to adjust the flow of forced air after preheating；
Step 9: the second air blower 31 will be transported in the second air preheater unit after air pressurized and preheat, in advance
Forced air after heat is entered in burner hearth 1 by the second regulating valve 35 and bottom air import 4, what bottom air import 4 entered
Forced air provides oxygen under the premise of capable of providing pressure for the foundation of biomass slag burning bed for the burning of biomass slag；The
Two regulating valves 35 are used to adjust the flow of forced air after preheating.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and equivalents circle
It is fixed.
Claims (9)
1. a kind of biomass combustion device, including burner hearth (1), it is characterised in that: the side of the burner hearth (1) is equipped with material inlet
(2) and side air import (3), the bottom of burner hearth (1) are equipped with bottom air import (4), and the other side of burner hearth goes out equipped with dust
Mouth (5) and dust import (6)；The material inlet (2) is connected with feed unit, dust outlet (5) and cyclone separator (7)
Import is connected, and the discharge port of cyclone separator (7) is connected with dust import (6), and the gaseous phase outlet of cyclone separator (7) passes through screen
Formula super heater unit, flue shaft element, sack cleaner (8) and air-introduced machine (9) are connected with flue gas desulphurization system (36)；
The feed unit includes feed bin (10), and feed bin (10) is connected with weighing belt (11), and weighing belt (11) passes through the first belt
Conveying device (12), small feed bin (13), the second belt conveyor (14) and feed screw (15) and material inlet (2) phase
Even, the weighing belt (11) passes through third belt conveyor (16), biomass silo (17) and the 4th belt conveyor
(18) it is connected with feed screw (15).
2. a kind of biomass combustion device according to claim 1, it is characterised in that: the pendant superheater unit includes
Pendant superheater vertical shaft (19), a lateral roof of pendant superheater vertical shaft (19) are equipped with the gaseous phase outlet with cyclone separator (7)
Connected vertical shaft air inlet (20), another upper lateral part of pendant superheater vertical shaft (19) are equipped with vertical shaft gas outlet (21), vertical shaft into
The partition (22) of lower openings, the other side of pendant superheater vertical shaft (19) are equipped between port (20) and vertical shaft gas outlet (21)
Inside is successively arranged high temperature superheater (23), medium temperature overheater (24) and the first economizer (25) from the bottom to top.
3. a kind of biomass combustion device according to claim 1, it is characterised in that: the flue shaft element includes cigarette
Road vertical shaft (26), the top of flue vertical shaft (26) are equipped with flue vertical shaft air inlet (27), and the bottom of flue vertical shaft (26) is equipped with cigarette
Road vertical shaft gas outlet (28), flue vertical shaft air inlet (27) are connected with vertical shaft gas outlet (21), flue vertical shaft gas outlet (28) with
The import of sack cleaner (8) is connected, and the inside of flue vertical shaft (26) is from top to bottom equipped with the second economizer (29), the first air
Heater unit and the second air preheater unit；The air intlet of first air preheater unit and the first air blower (30) phase
Even, the air outlet slit of the first air preheater unit is connected with side air import (3)；The air of second air preheater unit
Import is connected with the second air blower (31), and the air outlet slit of the second air preheater unit is connected with bottom air import (4).
4. a kind of biomass combustion device according to claim 2, it is characterised in that: the high temperature superheater (23) is one
A, medium temperature overheater (24) is three, and the first economizer (25) is two.
5. a kind of biomass combustion device according to claim 3, it is characterised in that: second economizer (29) is one
It is a.
6. a kind of biomass combustion device according to claim 3, it is characterised in that: first air preheater unit
Including several the first air preheaters (32), several first air preheaters (32) are connected in series, the second air preheater
Unit includes several second air preheaters (33), several second air preheaters (33) are connected in series；First air is pre-
Hot device (32) and the second air preheater (33) are arranged in a crossed manner.
7. a kind of biomass combustion device according to claim 6, it is characterised in that: first air preheater (32)
It is three, the second air preheater (33) is three.
8. a kind of biomass combustion device according to claim 3, it is characterised in that: first air preheater unit
Air outlet slit and side air import (3) between pipeline be equipped with the first regulating valve (34), the second air preheater unit
Air outlet slit and bottom air import (4) between pipeline be equipped with the second regulating valve (35).
9. a kind of method of biomass combustion device according to claims 1-8, it is characterised in that: this method includes following step
It is rapid:
Step 1: it is delivered to after measuring the clinker in feed bin (10) by weighing belt (11) by the first belt conveyor (12)
In small feed bin (13)；
Step 2: by third belt conveyor (16) after measuring the biomass slag in feed bin (10) by weighing belt (11)
It is delivered in biomass silo (17)；
Step 3: the clinker in small feed bin (13) is passed through into the second belt conveyor (14), feed screw (15) and raw material
Import (2) is delivered in burner hearth (1), uses clinker as the bottom material of burner hearth (1)；
Step 4: the biomass slag in biomass silo (17) passes through and the 4th belt conveyor (18), feed screw
(15) it is delivered in burner hearth (1) and burns with material inlet (2)；Combustion case is observed when biomass slag initial combustion, and is led to
The additive amount of the second belt conveyor (14) working the slag is crossed, to achieve the purpose that establish bed；It burns in biomass slag
During there is bed and move up or when bed is unstable, by the additive amount of the second belt conveyor (14) working the slag,
To achieve the purpose that stable bed；
Step 5: when burner hearth (1) interior normal combustion, dust outlet (5) and cyclonic separation of the cigarette wind with dust from burner hearth (1)
The import of device (7) enters in cyclone separator (7), and solid dust passes through the discharge port and dust of cyclone separator (7) after separation
Import (6), which comes back to, carries out circulating combustion in burner hearth (1)；
Step 6: the gas phase in step 5 after cyclone separator (7) separation passes through the gaseous phase outlet and vertical shaft of cyclone separator (7)
Air inlet (20) enters in pendant superheater vertical shaft (19), and gas phase enters pendant superheater vertical shaft around the bottom of partition (22)
(19) the other side simultaneously passes sequentially through high temperature superheater (23), medium temperature overheater (24) and the first economizer (25) and goes out into vertical shaft
In port (21)；
Step 7: the gas phase entered in vertical shaft gas outlet (21) enters flue vertical shaft (26) by flue vertical shaft air inlet (27)
Interior, gas phase passes sequentially through the second economizer (29), the first air preheater unit and the second air preheater unit, and by flue
Vertical shaft gas outlet (28) discharge, the gas phase of discharge is by entering flue gas desulfurization by air-introduced machine (9) after sack cleaner (8) dedusting
System (36), and desulfurization and depth dust removal process are carried out to flue gas；
Step 8: the first air blower (30) will be transported in the first air preheater unit after air pressurized and preheat, preheating
Forced air afterwards is entered in burner hearth (1) by the first regulating valve (34) and side air import (3) to be mentioned for the burning of biomass slag
Oxygen；First regulating valve (34) is used to adjust the flow of forced air after preheating；
Step 9: the second air blower (31) will be transported in the second air preheater unit after air pressurized and preheat, preheating
Forced air afterwards is entered in burner hearth (1) by the second regulating valve (35) and bottom air import (4), bottom air import (4)
The forced air of entrance provides under the premise of capable of providing pressure for the foundation of biomass slag burning bed for the burning of biomass slag
Oxygen；Second regulating valve (35) is used to adjust the flow of forced air after preheating.
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| CN201811559314.XA CN109578985A (en) | 2018-12-12 | 2018-12-12 | A kind of biomass combustion device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559314.XA CN109578985A (en) | 2018-12-12 | 2018-12-12 | A kind of biomass combustion device and method |
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| CN201310896Y (en) * | 2008-11-20 | 2009-09-16 | 北京国电龙源杭锅蓝琨能源工程技术有限公司 | Biomass incinerator of high temperature and high pressure circulating fluidized bed |
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