CN107842850B - A kind of fluidized bed combustor - Google Patents
A kind of fluidized bed combustor Download PDFInfo
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- CN107842850B CN107842850B CN201710897427.XA CN201710897427A CN107842850B CN 107842850 B CN107842850 B CN 107842850B CN 201710897427 A CN201710897427 A CN 201710897427A CN 107842850 B CN107842850 B CN 107842850B
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- wind
- building block
- distributing pipe
- cooling duct
- slag
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/24—Devices for removal of material from the bed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/28—Control devices specially adapted for fluidised bed, combustion apparatus
- F23C10/30—Control devices specially adapted for fluidised bed, combustion apparatus for controlling the level of the bed or the amount of material in the bed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
Abstract
The invention belongs to boiler plant technical fields, it is related to a kind of fluidized bed combustor, for fluidized bed garbage combustion and Waste Firing Power Generation Technique occasion, it is difficult to solve deslagging, the cycle of operation is short, three high big technical problems of CO concentration in flue gas, it can be effectively reduced city environmental pollution, extend the service life of burner, its main structure includes blast cap, wind-distributing pipe, cooling duct, metal hose, ipper air chamber, lower air chamber, movable building block brick, heat-preservation cotton, removable cover board and burner hearth, blast cap is equipped at the top of wind-distributing pipe, hearth outer wall symmetrical expression is equipped with ipper air chamber and lower air chamber, pass through metal hose and wind-distributing pipe respectively, cooling duct is connected；Embedded with movable building block brick on burner hearth, outside is equipped with heat-preservation cotton, and heat-preservation cotton is externally provided with removable cover board；Its overall structure is simple, and principle is reliable, and energy conservation and environmental protection, the service life is long, easy to operate, saves processing time, with good economic efficiency and vast market prospect.
Description
Technical field:
The invention belongs to boiler plant technical fields, are related to a kind of fluidized bed combustor, are used for fluidized bed garbage combustion
And Waste Firing Power Generation Technique field.
Background technique:
Fluidized bed garbage combustion boiler is mainly the rubbish for using high ash content, high-moisture.Due to season and geographical location
The ingredient of difference, rubbish has larger difference in Various Seasonal, different regions.Such as watermelon peel is more in summer, rubbish；And
In rainy season, refuse moisture is larger.Beer bottle and bottle cap in Qingdao, rubbish is more；When building site is more in city, water
Clod, brick will be more.On the other hand, immature due to refuse classification and crushing technology, cause rubbish calorific value lower
And rubbish size is larger.If refuse moisture is high or brick, cement block are more, rubbish calorific value can be caused low, cause fire box temperature
Low, CO concentration in flue gas is high.In fact, the fire box temperature of all fluidized bed refuse incinerators is not high, generally on 900 DEG C of left sides
The right side, it is seldom more than 950 DEG C.Trace it to its cause is to have low melting point in rubbish, such as glass, zinc, tin, lead, fire box temperature are high
It is easy for coking, so fire box temperature has to control relatively low, this is the high another reason of CO concentration in flue gas.Due to
Brick, cement block equidimension are larger, cause rubbish furnace slag discharge difficult, the cycle of operation is short.In the prior art, Chinese patent
CN205664391U discloses the air distributor structure for waste incinerator, including air distribution plate main body, blanking port and blast cap, described
Blast cap includes blast cap A, mushroom blast cap, directional mushroom blast cap and Duckbill type blast cap；The air port of the Duckbill type blast cap is in flat ellipse
Shape, the height of Duckbill type blast cap are 90-105mm；In air distribution plate main body, it is horizontally arranged with 14-17 blast cap, is vertically arranged with
59-66 blast cap；Respectively there are the Duckbill type blast cap and directional mushroom of a row, totally 3 or more gap settings by the upper and lower two sides of blanking port
Blast cap respectively has the Duckbill type blast cap and directional mushroom blast cap of a column, totally 5 or more gap settings, duck by blanking port arranged on left and right sides
The air port A of nozzle type blast cap and the air port B of directional mushroom blast cap are towards blanking port；Chinese patent CN205664391U discloses one
The slag-draining device of kind waste incinerator, including air distribution plate, scum pipe, the first blast cap and the second blast cap, the scum pipe are set to
The middle part of air distribution plate, the scum pipe are equipped with slag-drip opening, the top surface of the slag-drip opening and the either flush of air distribution plate；First wind
Cap is located on air distribution plate and is equipped with multiple, and multiple first blast cap is distributed in the surrounding of slag-drip opening, and first blast cap is in duckbilled
Shape, and its air outlet faces slag-drip opening；Second blast cap is located on air distribution plate and is equipped with multi-turn, the top of second blast cap
Portion is hemispherical, which is equipped with multiple exhaust vents, first blast cap and the second blast cap of multi-turn cloth from the inside to the outside
It sets, and the height of the second blast cap of the first blast cap and several circles is incremented by successively from the inside to the outside, the circle number of the second blast cap of several circles
The second blast cap and the second blast cap of several circles less than the circle number of the second blast cap of multi-turn, except the second blast cap of several circles
The highlands such as an outermost circle are arranged；Both structures are the slag-drip opening of larger size, so that the Fluidization wind rate of blanking port is sufficient, are made
Upper furnace fluidisation disturbance uniformly, lime-ash noncoking does not generate iron wire and wind at slag mouth, slag mouth drainage deslagging it is smooth,
Lime-ash does not block, but the bottom and surrounding of cloth wind and slag-draining device are formed by water screen tube and steel plate cross weld；Larger ruler
Very little slag-drip opening makes fluidisation of the boiler in slag-drip opening region be deteriorated, and rubbish is bad with oxygen mix, increases CO in flue gas
Concentration.Simultaneously as the fluidisation in slag-drip opening region is deteriorated, so that slag-drip opening is easier coking and causes deslagging difficult, seriously
When can block slag-drip opening and be forced blowing out, this is boiler operatiopn period short one of reason；Difficult another the reason is that rubbish of deslagging
The biggish substance of the specific gravity such as the bottle cap, the screw and nut that have tinplate to do in rubbish, fluidisation wind is motionless, and for a long time, accumulation is more
It can be deposited on air distribution plate, fluidisation is made to fail and be forced blowing out；Above-mentioned reason causes fluidized bed garbage combustion boiler and there is row
The problems such as slag is difficult, the cycle of operation is short, CO concentration in flue gas is high, and confirmed on more fluidized bed garbage combustion boilers,
These engineering problems have become to be badly in need of solving using fluidized bed garbage combustion boiler processing municipal refuse, reduction city environmental pollution
Certainly the problem of.
Summary of the invention:
It is an object of the invention to overcome disadvantage of the existing technology, seek to design a kind of fluidized bed combustor, solve
The three big technical problems that certainly deslagging is difficult, the cycle of operation is short, CO concentration in flue gas is high, can be effectively reduced city environmental pollution, prolong
The service life of long burner.
To achieve the goals above, the main structure of fluidized bed combustor of the present invention include blast cap, wind-distributing pipe,
Cooling duct, metal hose, ipper air chamber, lower air chamber, activity building block tile assembly, heat-preservation cotton, removable cover board, burner hearth, slag bucket, deslagging
Pipe, slagging door, wherein burner hearth includes inboard wall of burner hearth and hearth outer wall, is vertically arranged the lower part of the burner hearth of column and cavity structure
Equipped with funnelform slag bucket, the inclined-plane of slag bucket is equipped with more than one slag bucket aperture, and the lower vertical of slag bucket is equipped with scum pipe,
Deslagging bottom of the tube is equipped with slagging door, and the lower horizontal of inboard wall of burner hearth is equipped with the wind-distributing pipe of three column or more, the bottom table of each column wind-distributing pipe
Face is welded with cooling duct, and wind-distributing pipe and cooling duct are evenly arranged along burner hearth horizontal direction, between adjacent wind-distributing pipe,
Gap between adjacent cooling duct is slag-drip opening, so that slag-drip opening not instead of centralized arrangement is in center or edge, along level
Direction is evenly arranged, and any position convenient for the lesser sundries of size in burner hearth horizontal direction can fall into slag bucket；Each column cloth
More than one blast cap is equipped at the top of air hose, the left and right sides symmetrical expression of hearth outer wall is equipped with the air compartment of up-down structure, ipper air chamber
It is connected by metal hose with wind-distributing pipe, lower air chamber is connected by metal hose with cooling duct；In each wind-distributing pipe and
The cooling duct welded therewith passes through the position of inboard wall of burner hearth and hearth outer wall, each wind-distributing pipe and the cooling duct welded therewith
Surrounding be equipped with one group of activity building block tile assembly with handle so that wind-distributing pipe and the cooling duct welded therewith are fixed on furnace
On thorax inner wall and hearth outer wall；The outside of movable building block brick is equipped with heat-preservation cotton, and the outside of heat-preservation cotton is equipped with removable cover board；
The wind-distributing pipe is hollow type rectangular tube, and cooling duct is hollow type round tube；It can be quickly disassembled with flange connection
Wind-distributing pipe and cooling duct；Blast cap is semi-cylindrical hill, the left and right sides of each cooling duct lower part, along cooling duct length
On direction, a more than one cooling duct aperture is had, the vertical line of cooling duct aperture to cooling duct axis and vertical
The angle α in direction is 45 degree；
The activity building block tile assembly is composite structure, is made of four components, and the top movable comprising a strip is built
Block brick, two sizes are identical and the side activity building block brick of the strip of symmetrical configuration and a U-shaped bottom activity building block brick, top
Activity building block brick in portion's is located at the top of wind-distributing pipe, and activity building block brick in side is located at the two sides of wind-distributing pipe and cooling duct, and bottom is living
Dynamic building block brick is located at the lower section of cooling duct.
As another of the invention improvement: the activity building block tile assembly be a strip top movable building block brick,
Two sizes are identical and the side activity building block brick of the strip of symmetrical configuration and U-shaped bottom activity building block brick composition return
Type integral structure；As a further improvement of the present invention: the activity building block tile assembly of the hollow integral structure can be by
Symmetry axis or diagonal line are split as composite structure, according to what is burned for fluidized bed garbage combustion and Waste Firing Power Generation Technique field
The type of fuel and the processing capacity of burner select corresponding activity building block tile assembly, convenient for operation application.
As another improvement of the invention: the activity building block tile assembly is composite structure, the activity building block brick group
Any one in the top movable building block brick of the strip of part, side activity building block brick and bottom activity building block brick or two kinds mutual group
It closes, the number of components of the activity building block tile assembly can be effectively reduced, be convenient for practical operation application；As of the invention into one
Step is improved: being combined with each other between the component of the adjacent activity building block tile assembly, it is a fairly large number of to advantageously reduce wind-distributing pipe
The movable building block brick component count of burner is convenient for practical operation application.
Fluidized bed combustor of the present invention can be used in fluidized bed garbage combustion and technical field of power generation.
The cloth wind of fluidized bed combustor of the present invention and deslagging the specific process steps are as follows:
1) it adds bed material: before running first, first adding bed material into burner hearth, bed material is added to blast cap lower edge position, is made
Level where bed material bed depth is more than wind-distributing pipe, fills bed material for slag bucket；
2) cloth wind and deslagging size is arranged: the cooling duct for then adjusting wind-distributing pipe and welding therewith makes it along burner hearth
Horizontal direction is evenly arranged, and the spacing between adjacent wind-distributing pipe, adjacent cooling duct is 100-300mm, the spacing shape
At gap be slag-drip opening so that slag-drip opening is evenly arranged along entire burner hearth, to make to obtain even distributing wind in burner hearth, and just
It can be fallen into slag bucket in the lesser sundries of size in any position of burner hearth horizontal direction；
3) burner is run: and then operation burner, and air compartment and lower air chamber provide wind pressure, leeward chamber pressure upwards
Greater than windward chamber pressure, it is quickly cooled down, is avoided when passing through cooling duct aperture convenient for the slag of position below wind-distributing pipe
Coking；
4) deslagging size is adjusted: when the noncombustible matter accumulation of larger size in burner hearth is more, by burner load
It minimizes, deslagging minimizes bed pressure, and holding wind-distributing pipe region is negative pressure, then the screw of removable cover board is unscrewed, and pulls out
Heat-preservation cotton takes insulation gloves, and the handle for hand-pulling movable building block brick pulls out movable building block brick, utilizes side activity building block
Gap between brick, wind-distributing pipe and cooling duct three first pulls out side activity building block brick, then by top movable building block brick
It is pulled out with bottom activity building block brick, then the cooling duct welded by wind-distributing pipe and therewith moves left and right, and increases the spacing of wind-distributing pipe,
So that large scale, aphlogistic sundries can successfully fall into slag bucket；After these large-sized sundries are excluded out of burner hearth,
The position of cooling duct, movable building block brick that can restore rapidly wind-distributing pipe and weld therewith, applies heat-preservation cotton, finally covering can
It tears cover board open, burner is made to restore to operate normally；
5) deslagging: when deslagging is unsmooth in last slag bucket or slightly blocks, the slag bucket aperture being provided with by slag bucket inclined-plane is used
Compared with thin metal rod slag bucket is entered by slag bucket aperture obliquely, firmly dredges the slag blanket in slag bucket, so that slag blanket in slag bucket is fluffed, slag bucket
Interior deslagging is unobstructed；After deslagging is unobstructed in slag bucket, slag bucket aperture is sealed with the bolt of corresponding size, opens slagging door, is completed
Deslagging.
The working principle of fluidized bed combustor of the present invention: larger using the lesser bed material particle of partial size and size
Lime-ash it is grain fluidized when gravity it is different, so that the lime-ash generated after burning is fallen into slag bucket by slag-drip opening, finally by scum pipe
Discharge；By pull-out activity building block brick, wind-distributing pipe and cooling duct spacing are adjusted, achievees the purpose that adjust slag-drip opening size, it will
The discharge of large scale sundries, then restores full size, fluidisation of the burner in burner hearth is made to improve, and bed material and oxygen are sufficiently mixed
It closes, the concentration of CO in flue gas is reduced, and using the lime-ash in slag bucket aperture dredging slag bucket, using the gravity of lime-ash by lime-ash
It is smoothly discharged.
Compared with prior art, the present invention having the following advantages that and the technical effect of high-lighting: 1. the structure eliminates
The single slag-drip opening of larger area, is changed to that area is moderate, does not influence to fluidize, is uniformly distributed in a section, can adjust in operation
Multiple slag-drip openings of entire row cinder notch size；2. the spacing 200mm or more between wind-distributing pipe, size is less than 200mm and ratio in rubbish
Aphlogistic object such as the heavier cement block of weight, stone, brick, iron block, vial and glass cover, screw screw, nut nut
Matter can fall into slag bucket quickly in the process of running, so that fluidized status more than wind-distributing pipe is greatly improved, burn more abundant, cigarette
CO concentration of emission is minimized in gas；3. slag bucket opening size increases, solves deslagging problem；4. cooling duct aperture has oblique
Under the wind that blows solve the problems, such as slag-drip opening coking so that slag is cooled down quickly；It is greater than 200mm or more in furnace 5. clearing up
Bulk sundries when, without execute blowing out, cooling, enter furnace manual cleaning, light a fire starts the complicated procedures such as burner again, save
The processing time, reduces burner blowing out number, extend the cycle of operation of burner, improve burner equipment
The economic benefit used, overall structure is simple, and principle is reliable, and energy conservation and environmental protection, the service life is long, easy to operate, saves the processing time,
With good economic efficiency and vast market prospect.
Detailed description of the invention:
Fig. 1 is the main structure schematic illustration of fluidized bed combustor of the present invention.
Fig. 2 is the A-A sectional structure schematic illustration of fluidized bed combustor of the present invention.
Fig. 3 is the local B-B sectional structure schematic illustration of fluidized bed combustor of the present invention.
Fig. 4 is the principle schematic diagram of blast cap of the present invention, wind-distributing pipe and cooling tube.
Fig. 5 is the principle schematic diagram of movable building block brick of the present invention.
Specific embodiment:
The present invention will be further described by way of example and in conjunction with the accompanying drawings.
Embodiment 1:
The main structure for the fluidized bed combustor that the present embodiment is related to includes blast cap 1, wind-distributing pipe 2, cooling duct 3, gold
Belong to hose 4, ipper air chamber 5, lower air chamber 6, activity building block tile assembly 7, heat-preservation cotton 8, removable cover board 9, burner hearth 16, slag bucket 12, deslagging
Pipe 14 and slagging door 15, wherein burner hearth 16 includes inboard wall of burner hearth 10 and hearth outer wall 11, is vertically arranged column and cavity structure
The lower part of burner hearth 16 is equipped with funnelform slag bucket 12, and the inclined-plane of slag bucket 12 is equipped with more than one slag bucket aperture 13, slag bucket 12
Lower vertical be equipped with scum pipe 14,14 bottom of scum pipe is equipped with slagging door 15, and the lower horizontal of inboard wall of burner hearth 10 is equipped with three column
Above wind-distributing pipe 2, the bottom surface of each column wind-distributing pipe 2 are welded with cooling duct 3, and wind-distributing pipe 2 and cooling duct 3 are along furnace
Thorax horizontal direction is evenly arranged, and the gap between adjacent wind-distributing pipe 2, between adjacent cooling duct 3 is slag-drip opening, so that slag-drip opening
Instead of centralized arrangement is not evenly arranged in the horizontal direction in center or edge, convenient for the lesser sundries of size in burner hearth level
Any position in direction can fall into slag bucket 12；More than one blast cap 1, hearth outer wall 11 are equipped at the top of each column wind-distributing pipe 2
Left and right sides symmetrical expression be equipped with the air compartment of up-down structure, ipper air chamber 5 is connected by metal hose 4 with wind-distributing pipe 2, lower air chamber
6 are connected by metal hose 4 with cooling duct 3；Each wind-distributing pipe 2 and the cooling duct 3 welded therewith are passing through in burner hearth
The movable building block brick with handle is equipped between the position of wall 10 and hearth outer wall 11, with inboard wall of burner hearth 10, hearth outer wall 11
Component 7, so that wind-distributing pipe 2 and the cooling duct 3 welded therewith are fixed on inboard wall of burner hearth 10 and hearth outer wall 11；Activity is built
The outside of block tile assembly 7 is equipped with heat-preservation cotton 8, and the outside of heat-preservation cotton 8 is equipped with removable cover board 9；
The wind-distributing pipe 2 is hollow type rectangular tube, and cooling duct 3 is hollow type round tube；It can quickly be torn open with flange connection
Unload wind-distributing pipe 2 and cooling duct 3；Blast cap 1 is semi-cylindrical hill, the left and right sides of each 3 lower part of cooling duct, along cooling wind
On 3 length direction of pipe, more than one cooling duct aperture 17 is had, cooling duct aperture 17 arrives 3 axis of cooling duct
Vertical line and vertical direction angle α be 45 degree；
The activity building block tile assembly 7 is composite structure, is made of four movable building block bricks, comprising living at the top of a strip
The strip side activity building block brick 19 and a U-shaped bottom activity building block brick of dynamic 18, two identical symmetrical configurations of size of building block brick
20, top movable building block brick 18 is located at the top of wind-distributing pipe 2, and side activity building block brick 19 is located at wind-distributing pipe 2 and cooling duct 3
Two sides, bottom activity building block brick 20 are located at the lower section of cooling duct 3.
The present invention has been applied to the transformation of a large-sized boiler, achieves good effect, thoroughly solves boiler slag removal
The problem difficult, the cycle of operation is short, CO concentration in flue gas is high, the cycle of operation have reached April or more, boiler load CO in 60t/h
Concentration of emission is by original 310mg/Nm3It is reduced to 80mg/Nm3, effect is obvious.
Specific step is as follows for the cloth wind and Slagoff method of fluidized bed combustor of the present invention:
1) it adds bed material: before running first, first adding bed material into burner hearth 16, bed material is added to 1 lower edge position of blast cap,
Making bed material bed depth is more than 2 place level of wind-distributing pipe, and slag bucket 12 is filled bed material；
2) cloth wind and deslagging size is arranged: the cooling duct 3 for then adjusting wind-distributing pipe 2 and welding therewith makes it along furnace
16 horizontal direction of thorax is evenly arranged, and the spacing between adjacent wind-distributing pipe 2, adjacent cooling duct 3 is 100-300mm, should
The gap that spacing is formed is slag-drip opening, so that slag-drip opening is evenly arranged along entire burner hearth, to make to obtain in burner hearth 16 uniformly
Cloth wind, and can be fallen into slag bucket 12 convenient for the lesser sundries of size in any position of 16 horizontal direction of burner hearth；
3) burner is run: and then operation burner, and air compartment 5 and lower air chamber 6 provide wind pressure, lower air chamber 6 upwards
Pressure is greater than 5 pressure of ipper air chamber, obtains fast quickly cooling when passing through cooling duct aperture 17 convenient for the slag of 2 or less position of wind-distributing pipe
But, coking is avoided；
4) it adjusts deslagging size: when the noncombustible matter accumulation of larger size in burner hearth 16 is more, burner being born
Lotus minimizes, and deslagging minimizes bed pressure, and holding 2 region of wind-distributing pipe is negative pressure, then the screw of removable cover board 9 is unscrewed,
Heat-preservation cotton 8 is pulled out, insulation gloves are taken, the handle for hand-pulling activity building block tile assembly 7 pulls out activity building block tile assembly 7,
Using the gap between 3 three of both sides activity building block brick 19, wind-distributing pipe 2 and cooling duct, first by both sides activity building block brick
19 pull out, and then pull out top movable building block brick 18 and bottom activity building block brick 20, then weld by wind-distributing pipe 2 and therewith cold
But air hose 3 moves left and right, and increases the spacing of wind-distributing pipe 2, so that large scale, aphlogistic sundries can successfully fall into slag bucket
12；After these large-sized sundries are excluded out of burner hearth 16, the cooling duct that wind-distributing pipe 2 can be restored rapidly and welded therewith
3, the position of activity building block tile assembly 7, applies heat-preservation cotton 8, finally covers removable cover board 9, and burner is made to restore to operate normally；
5) deslagging: finally when deslagging is unsmooth in slag bucket 12 or slightly blocks, the slag bucket being provided with by 12 inclined-plane of slag bucket is small
Hole 13 enters slag bucket 12 by slag bucket aperture 13 using compared with thin metal rod obliquely, firmly dredges the slag blanket in slag bucket 12, make slag bucket
Slag blanket fluffs in 12, and deslagging is unobstructed in slag bucket 12；After deslagging is unobstructed in scum pipe 14, with the bolt of corresponding size by slag bucket aperture
13 seal, and open slagging door 15, complete deslagging.
Embodiment 2:
The present embodiment difference from example 1 is that: the activity building block tile assembly be a strip top movable
What building block brick, the strip side activity building block brick of the identical symmetrical configuration of two sizes and a U-shaped bottom activity building block brick formed
Hollow integral structure reduces the number of components of the activity building block tile assembly of large-scale burner, is convenient for practical application.
The cloth wind for the fluidized bed combustor that the present embodiment is related to and the specific steps difference from Example 1 of deslagging exist
In: when step (4) adjusts deslagging size, by the single whole pull-out of activity building block tile assembly 7.
Embodiment 3:
The present embodiment and embodiment 2 the difference is that: the activity building block tile assembly energy of the hollow integral structure
It is enough to be split as composite structure by symmetry axis or diagonal line, it is burnt according to for fluidized bed garbage combustion and Waste Firing Power Generation Technique field
The type of the fuel of burning and the processing capacity of burner select corresponding activity building block tile assembly, convenient for operation application.
The cloth wind for the fluidized bed combustor that the present embodiment is related to and the specific steps of deslagging are same as Example 1.
Embodiment 4:
The present embodiment difference from example 1 is that: the activity building block tile assembly be composite structure, the activity
Any one in the strip top movable building block brick of building block tile assembly, side activity building block brick and bottom activity building block brick or two kinds
It is combined with each other, the number of components of the activity building block tile assembly can be effectively reduced, be convenient for practical operation application；
The cloth wind for the fluidized bed combustor that the present embodiment is related to and the specific steps of deslagging are same as Example 1.
Embodiment 5:
The present embodiment with embodiment 4 the difference is that: phase between the component of the adjacent activity building block tile assembly
Mutually combination, advantageously reduces the movable building block brick component count of a fairly large number of burner of wind-distributing pipe, answers convenient for practical operation
With.
The cloth wind for the fluidized bed combustor that the present embodiment is related to and the specific steps of deslagging are same as Example 1.
Embodiment 6:
Fluidized bed combustor described in any one of embodiment 1-5 can be used in fluidized bed garbage combustion and rubbish
Technical field of power generation.
The above is only preferred embodiments of the invention, are not intended to limit the invention in any way, all according to this
The technical spirit of invention any simple modification, equivalent variations or modification made to the above embodiment, still fall within skill of the present invention
In the protection scope of art scheme.
Claims (9)
1. a kind of fluidized bed combustor, main structure includes blast cap, wind-distributing pipe, ipper air chamber, lower air chamber, burner hearth, and feature exists
In: it further include cooling duct, metal hose, activity building block tile assembly, heat-preservation cotton, removable cover board, slag bucket, scum pipe, slagging door,
Wherein, burner hearth includes inboard wall of burner hearth and hearth outer wall, and the lower part for being vertically arranged the burner hearth of column and cavity structure is equipped with funnel-form
Slag bucket, the inclined-plane of slag bucket is equipped with more than one slag bucket aperture, and the lower vertical of slag bucket is equipped with scum pipe, deslagging bottom of the tube
Equipped with slagging door, the lower horizontal of inboard wall of burner hearth is equipped with the wind-distributing pipe of three column or more, and the bottom surface of each column wind-distributing pipe is welded with
Cooling duct, wind-distributing pipe and cooling duct are evenly arranged along burner hearth horizontal direction, between adjacent wind-distributing pipe, adjacent cooling wind
Gap between pipe is slag-drip opening, so that slag-drip opening not instead of centralized arrangement is in center or edge, uniform cloth in the horizontal direction
It sets, any position convenient for the lesser sundries of size in burner hearth horizontal direction can fall into slag bucket；It is set at the top of each column wind-distributing pipe
There is more than one blast cap, the left and right sides symmetrical expression of hearth outer wall is equipped with the air compartment of up-down structure, and ipper air chamber is soft by metal
Pipe is connected with wind-distributing pipe, and lower air chamber is connected by metal hose with cooling duct；It welds in each wind-distributing pipe and therewith
Cooling duct passes through the position of inboard wall of burner hearth and hearth outer wall, and the surrounding of each wind-distributing pipe and the cooling duct welded therewith is all provided with
There is one group of activity building block tile assembly with handle, so that wind-distributing pipe and the cooling duct welded therewith are fixed on inboard wall of burner hearth and furnace
On thorax outer wall；The outside of movable building block brick is equipped with heat-preservation cotton, and the outside of heat-preservation cotton is equipped with removable cover board.
2. fluidized bed combustor as described in claim 1, it is characterised in that: the wind-distributing pipe is hollow type rectangular tube, cold
But air hose is hollow type round tube；It can be quickly disassembled wind-distributing pipe and cooling duct with flange connection；Blast cap is semi-cylindrical hill, often
It is small to have more than one cooling duct along cooling duct length direction for the left and right sides of a cooling duct lower part
Hole, the vertical line of cooling duct aperture to cooling duct axis and the angle α of vertical direction are 45 degree.
3. the fluidized bed combustor as described in any one of claim 1-2, it is characterised in that: the activity building block brick group
Part is composite structure, is made of four movable building block bricks, and comprising a strip top movable building block brick, two sizes are identical and tie
The side activity building block brick of the symmetrical strip of structure and a U-shaped bottom activity building block brick, top movable building block brick are located at cloth wind
The top of pipe, side activity building block brick are located at the two sides of wind-distributing pipe and cooling duct, and activity building block brick in bottom is located at cooling duct
Lower section.
4. the fluidized bed combustor as described in any one of claim 1-2, it is characterised in that: the activity building block brick group
Part is identical the top movable building block brick of a strip, two sizes and the side activity building block brick of the strip of symmetrical configuration and one
The hollow integral structure of U-shaped bottom activity building block brick composition.
5. fluidized bed combustor as claimed in claim 4, it is characterised in that: the activity building block of the hollow integral structure
Tile assembly can be split as composite structure by symmetry axis or diagonal line, according to for fluidized bed garbage combustion and Waste Firing Power Generation Technique
The type for the fuel that field is burned and the processing capacity of burner select corresponding activity building block tile assembly, answer convenient for operation
With.
6. the fluidized bed combustor as described in any one of claim 1-2, it is characterised in that: the activity building block brick group
Part is composite structure, top movable building block brick, side activity building block brick and the bottom activity building block of the activity building block tile assembly
Any one in brick or two kinds of intercombinations, can effectively reduce the number of components of the activity building block tile assembly, convenient for practical
Operation application.
7. fluidized bed combustor as claimed in claim 6, it is characterised in that: the structure of the adjacent activity building block tile assembly
It is combined with each other between part, advantageously reduces the movable building block brick component count of a fairly large number of burner of wind-distributing pipe, convenient for real
Border operation application.
8. fluidized bed combustor as described in claim 1, it is characterised in that: the cloth wind of the device and Slagoff method it is specific
Steps are as follows:
1) it adds bed material: before running first, first adding bed material into burner hearth, bed material is added to blast cap lower edge position, makes bed material
Level where bed depth is more than wind-distributing pipe, fills bed material for slag bucket；
2) cloth wind and deslagging size is arranged: the cooling duct for then adjusting wind-distributing pipe and welding therewith makes it along burner hearth level
Direction is evenly arranged, and the spacing between adjacent wind-distributing pipe, adjacent cooling duct is 100-300mm, what which formed
Gap is slag-drip opening, so that slag-drip opening is evenly arranged along entire burner hearth, to make to obtain even distributing wind in burner hearth, and is convenient for ruler
Very little lesser sundries can be fallen into slag bucket in any position of burner hearth horizontal direction；
3) burner is run: then operation burner, and air compartment and lower air chamber provide wind pressure upwards, leeward chamber pressure is greater than
Windward chamber pressure is quickly cooled down when passing through cooling duct aperture convenient for the slag of position below wind-distributing pipe, avoids coking；
4) it adjusts deslagging size: when the noncombustible matter accumulation of larger size in burner hearth is more, burner load being down to
Minimum, deslagging minimizes bed pressure, and holding wind-distributing pipe region is negative pressure, then the screw of removable cover board is unscrewed, and pulls out heat preservation
Cotton takes insulation gloves, and the handle for hand-pulling movable building block brick pulls out movable building block brick, using side activity building block brick,
Gap between wind-distributing pipe and cooling duct three first pulls out side activity building block brick, then by top movable building block brick and
Activity building block brick in bottom pulls out, then the cooling duct welded by wind-distributing pipe and therewith moves left and right, and increases the spacing of wind-distributing pipe, makes
Obtain large scale, aphlogistic sundries can successfully fall into slag bucket；It, can after these large-sized sundries are excluded out of burner hearth
With restore wind-distributing pipe rapidly and therewith weld cooling duct, movable building block brick position, apply heat-preservation cotton, finally cover removable
Cover board makes burner restore to operate normally；
5) deslagging: when deslagging is unsmooth in last slag bucket or slightly blocks, the slag bucket aperture being provided with by slag bucket inclined-plane, use is thinner
Metallic rod enters slag bucket by slag bucket aperture obliquely, firmly dredges the slag blanket in slag bucket, slag blanket in slag bucket is made to fluff, row in slag bucket
Slag is unobstructed；After deslagging is unobstructed in slag bucket, slag bucket aperture is sealed with the bolt of corresponding size, opens slagging door, completes deslagging.
9. fluidized bed combustor as described in claim 1, it is characterised in that: can be used in fluidized bed garbage combustion and rubbish
Technical field of power generation.
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| CN201710897427.XA CN107842850B (en) | 2017-09-28 | 2017-09-28 | A kind of fluidized bed combustor |
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| CN201710897427.XA CN107842850B (en) | 2017-09-28 | 2017-09-28 | A kind of fluidized bed combustor |
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| CN108343948B (en) * | 2018-04-02 | 2023-12-05 | 西子清洁能源装备制造股份有限公司 | Beam type air distribution slag discharging device for circulating fluidized bed boiler |
| CN109321280B (en) * | 2018-11-06 | 2024-03-08 | 安徽科达洁能股份有限公司 | Air distribution device of fluidized bed reactor and use method thereof |
| CN109323266A (en) * | 2018-11-13 | 2019-02-12 | 浙江物华天宝能源环保有限公司 | A kind of tubular distributor suitable for fluidized combustion rubbish |
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| TWI435034B (en) * | 2009-09-18 | 2014-04-21 | Ind Tech Res Inst | Fluidized bed combustor temperature controlling method |
| CN102466224B (en) * | 2010-11-12 | 2015-03-25 | 中国科学院工程热物理研究所 | Air distribution device of fluidized bed and boiler or gasification furnace with air distribution device |
| CN102997231B (en) * | 2012-12-31 | 2015-06-24 | 中国科学院工程热物理研究所 | Large circulating fluidized bed boiler, air distribution device and air distribution device assembly |
| CN204901747U (en) * | 2015-03-24 | 2015-12-23 | 宁波悍马能源设备有限公司 | Fluidized bed cloth wind system all |
| CN104990086B (en) * | 2015-07-01 | 2018-05-22 | 集美大学 | A kind of fluidized bed refuse incinerator |
| CN205299544U (en) * | 2016-01-15 | 2016-06-08 | 信鼎技术服务股份有限公司 | Scattered mechanism of qi of cloth tuber pipe formula fluidization constructs |
| CN106642093A (en) * | 2016-12-16 | 2017-05-10 | 无锡东马锅炉有限公司 | Air distribution device for biomass fluidized-bed boiler |
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