CN203364148U - Biomass boiler with own first-class multi-pipe cyclone dust removal devices and rear smoke channel thereof - Google Patents
Biomass boiler with own first-class multi-pipe cyclone dust removal devices and rear smoke channel thereof Download PDFInfo
- Publication number
- CN203364148U CN203364148U CN2013202035241U CN201320203524U CN203364148U CN 203364148 U CN203364148 U CN 203364148U CN 2013202035241 U CN2013202035241 U CN 2013202035241U CN 201320203524 U CN201320203524 U CN 201320203524U CN 203364148 U CN203364148 U CN 203364148U
- Authority
- CN
- China
- Prior art keywords
- flue
- flue gas
- dust
- end ductwork
- dust removal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Chimneys And Flues (AREA)
Abstract
The utility model provides a rear smoke channel of a biomass boiler with own first-class multi-pipe cyclone dust removal devices and the biomass boiler with the own first-class multi-pipe cyclone dust removal devices, wherein the rear smoke channel of the biomass boiler with own first-class multi-pipe cyclone dust removal devices is arranged in an U-shaped way, smoke declines from the top of the rear smoke channel to the bottom thereof and rises from bottom in the reverse direction; and the rear smoke channel comprises the dust removal device at a position from which the smoke flows upwards after turning from a horizontal direction in the rear smoke channel; a first flue-dust retainer located below the dust removal device, wherein smoke dust falls into the first flue-dust retainer after the smoke dust is separated from the smoke by the dust removal device; one or a plurality of economizers located at the position where the smoke flows from bottom to top; and a first air heating booster above the economizer located at the position where the smoke flows from bottom to top. With the biomass boiler with the own impact-type inertial dust collection devices and the rear smoke channel thereof in the utility model, self dust removal capacity of the boiler can be increased, occupied land and invest expenses of the boiler dust removal equipment can be reduced and all kinds of problems generated due to dust accumulation in the boiler can be solved.
Description
Technical field
The utility model relates to the plant equipment field, particularly relates to a kind of back-end ductwork and a kind of biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal.
Background technology
The living beings such as agricultural crop straw, bagasse, rice husk act as a fuel and send into boiler combustion, and the steam of generation is the Biomass Energy Utilization technology that country advocates for generating or heat supply.Characteristic for biomass fuel, adopt grate firing to add suspension combustion, perhaps, suspension combustion, or the combustion system such as recirculating fluidized bed is the burning process of common maturation, after adopting the boiler of above-mentioned burning process to be burnt, the original discharge concentration of flue dust higher (after stove the efficiency of dust collection of deduster will reach more than 99.8% just can reach current environment protection emission require) in boiler exhaust gas, and, often contain the particle with Mars in flue gas, sack cleaner after stove is had to the harm of scaling loss.
In prior art, typical grate firing adds suspension combustion biomass boiler and dust pelletizing system generally by feeding system, the biomass boiler be connected with feeding system, and external dust arrester forms.Fuel reaches biomass boiler through feeding system, produce flue gas after burning, flue gas discharges after external dust arrester carries out dedusting, because external dust arrester adopts sack cleaner, once contain the particle with Mars in flue gas, will produce to sack cleaner the harm of scaling loss.For this problem, in prior art, proposed increases the one-level cyclone dust collectors between biomass boiler and sack cleaner, to remove the particle with Mars.Yet increase cyclone, need to configure separately, and corresponding increase floor space and equipment cost.
With reference to the schematic diagram of a kind of existing typical biomass boiler shown in figure 1, this typical suspension combustion biomass boiler and dust pelletizing system be generally by feeding system, the biomass boiler be connected with feeding system, and external dust arrester forms.Fuel reaches biomass boiler through feeding system, produce flue gas after burning, flue gas is through back-end ductwork, finally by crossing external dust arrester, carry out discharging after dedusting, the flow of flue gas direction of boiler back end ductwork is top-down as shown by arrows in FIG., flue dust is under the self gravitation effect, and for the easy dust stratification of economizer of horizontal bundled tube shown in figure, collecting ash easily causes the problem of the following aspects: cause security incident 1.; 2. the reduction thermal efficiency, waste fuel; 3. reduction boiler output; 4. reduction boiler life; 5. reduction economic benefit.
Therefore, those skilled in the art need the urgent problem solved to be: back-end ductwork and a kind of biomass boiler that a kind of biomass boiler is provided, in order to improve boiler from dust collection capacity, reduce boiler dust removal equipment occupation of land and investment cost and solve the variety of issue that collecting ash causes.
The utility model content
In view of this, the problem that the utility model exists for above-mentioned prior art makes improvements, be back-end ductwork and the biomass boiler that the technical problems to be solved in the utility model is to provide a kind of biomass boiler, can improve boiler from dust collection capacity, reduce boiler dust removal equipment occupation of land and investment cost and solve the variety of issue that collecting ash causes.
For solving the problems of the technologies described above, the utility model embodiment discloses a kind of back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal, described back-end ductwork adopts U-shaped layout, and flue gas, after described back-end ductwork top drops to bottom, then rises to top by bottom; Described back-end ductwork comprises: is arranged in described back-end ductwork flue gas and upwards is folded to the deduster of mobile position from level, and, be positioned at the first flue-dust retainer of described deduster below; After deduster separates flue dust from flue gas, flue dust drops in the first flue-dust retainer; Be positioned at flue gas one or more economizers of mobile position from bottom to top; And, be positioned at described flue gas the first air preheater of the economizer top of mobile position from bottom to top.
Preferably, the described back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal also comprises:
Be positioned at the water seal scraper plate Machine for cleaning-out ash of described the first flue-dust retainer bottom.
Preferably, described deduster is for axially entering the type multi-tube dust cleaner.
Preferably, the back-end ductwork of described biomass boiler also comprises:
Be positioned at flue gas one or more economizers of mobile position from top to bottom; And, described flue gas from top to bottom mobile position below the second air preheater.
Preferably, the described back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal also comprises:
Be positioned at described flue gas second flue-dust retainer of mobile bottom position from top to bottom; And, be positioned at the unloading valve of described the second flue-dust retainer below.
Preferably, when adopting the described back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal to carry out dedusting, comprise with the next stage:
The flue gas decline stage: flue gas descends from described back-end ductwork top, through economizer and the second air preheater;
The dedusting stage: upwards be folded to mobile position at flue gas from level, flue gas enters deduster, and after deduster separates flue dust from flue gas, flue dust drops in the first flue-dust retainer;
The flue gas ascent stage: the flue gas through dust removal process rises from described back-end ductwork bottom, through economizer and the first air preheater, from described back-end ductwork top, discharges.
The utility model embodiment also discloses a kind of biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube, comprise feeding system, the combustion furnace be connected with described feeding system, and, the back-end ductwork be connected with described combustion furnace: described back-end ductwork adopts U-shaped layout, flue gas, after described back-end ductwork top drops to bottom, then rises to top by bottom; Described back-end ductwork comprises: is arranged in described back-end ductwork flue gas and upwards is folded to the deduster of mobile position from level, and, be positioned at the first flue-dust retainer of described deduster below; After deduster separates flue dust from flue gas, flue dust drops in the first flue-dust retainer; Be positioned at flue gas one or more economizers of mobile position from bottom to top; And, be positioned at described flue gas the first air preheater of the economizer top of mobile position from bottom to top.
Preferably, the described back-end ductwork that carries the cyclone dust removal of one-level ceramic multi-tube also comprises:
Be positioned at the water seal scraper plate Machine for cleaning-out ash of described the first flue-dust retainer bottom.
Preferably, described deduster is for axially entering the type multi-tube dust cleaner.
Preferably, described back-end ductwork also comprises:
Be positioned at flue gas one or more economizers of mobile position from top to bottom, and, described flue gas from top to bottom mobile position below the second air preheater.
Compared with prior art, the utlity model has following advantage:
The utility model is by adopting U-shaped layout to change the flow of flue gas direction at boiler back end ductwork, particularly, prior art flow of flue gas direction is first up and then down, flow of flue gas direction of the present utility model is to get on, get off, be that flow of flue gas (dedusting) is divided into following three phases: 1, the flue gas decline stage: flue gas descends from described back-end ductwork top, through economizer and the second air preheater; 2, the dedusting stage: upwards be folded to mobile position at flue gas from level, flue gas enters deduster, and after deduster separates flue dust from flue gas, flue dust drops in the first flue-dust retainer; 3, flue gas ascent stage: the flue gas through dust removal process rises from described back-end ductwork bottom, through economizer and the first air preheater, from described back-end ductwork top, discharges.Solved horizontal bundled tube economizer dust stratification problem.
Further, upwards be folded to mobile position at flue gas from level, arranged deduster, arranged a flue-dust retainer below this deduster, described flue-dust retainer is the first flue-dust retainer, for guaranteeing the negative pressure of boiler at this flue-dust retainer position, prevent that cold wind from leaking into boiler, regularly take dust stratification simultaneously out of, also in the flue-dust retainer bottom, be provided with water seal scraper plate Machine for cleaning-out ash simultaneously, after flue dust enters deduster along back-end ductwork, flue dust is under the effect of rotary centrifugal force, separated from flue gas, and then in Action of Gravity Field drops to flue-dust retainer, reach the effect of initial dedusting, the utility model passes through at back-end ductwork internal placement deduster, thereby improved biomass boiler from dust collection capacity.
The accompanying drawing explanation
The schematic diagram that Fig. 1 is a kind of existing typical biomass boiler;
The structure chart of the back-end ductwork example that Fig. 2 is a kind of biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube of the present utility model;
Fig. 3 is a kind of structure chart that axially enters type multitube Ceramic dust collector of the present utility model;
Fig. 4 is the schematic diagram that a kind of ceramic dust-removing element that axially enters type multitube Ceramic dust collector of the present utility model axially enters blade.
The specific embodiment
For making structure of the present utility model, characteristic and advantage clearer, before being described in detail below in conjunction with specific embodiment, the prior art of first the background technology part being mentioned is illustrated by reference to the accompanying drawings.
Fig. 1 be boiler common in prior art with and the dust arrester schematic diagram.
In prior art, typical grate firing adds the feeding system that suspension combustion biomass boiler and dust pelletizing system generally indicate in figure, the biomass boiler be connected with feeding system, and external dust arrester forms, particularly, external dust arrester comprises: cyclone dust collectors and bag-type dust equipment.Fuel reaches biomass boiler through feeding system, produces flue gas after burning, and flue gas discharges after external dust arrester carries out dedusting.Particularly, dust arrester is connected on boiler back end ductwork by external mode by cyclone dust collector and dust-removal cloth-bag, back-end ductwork is inverted u-shaped and fixes on the ground, the flue gas with flue dust produced by boiler combustion first rises during through back-end ductwork and descends and carry out final dusting through bag-type dust again after external cyclone dust collector carries out rough dusting through straight line after horizontal junction, top, finally discharges the flue gas through dust removal process.
With reference to the typical suspension combustion biomass boiler shown in figure 1 and the schematic diagram of dust pelletizing system, this typical suspension combustion biomass boiler and dust pelletizing system be generally by feeding system, the biomass boiler be connected with feeding system, and external dust arrester forms.External dust arrester is cyclone dust collector 11, back-end ductwork is inverted u-shaped and fixes on the ground, the flue gas with flue dust produced by boiler combustion first rises and descends through straight line after horizontal junction, top while passing through back-end ductwork, the flue gas economizer 12 that process is laterally restrained step by step in flue, pass through afterwards external cyclone dust collector dedusting 11, finally discharge the flue gas through dust removal process.
For the dedusting method of these two kinds of boilers, the design of boiler does not all have from dust collection capacity, and the user needs to configure separately cyclone dust collectors and removes Mars and oarse-grained flue dust, takes up an area and invests higher; Simultaneously, the flow of flue gas direction of boiler back end ductwork is top-down, and soot dust granule is owing to can constantly down falling under the self gravitation effect, for the easy dust stratification of the economizer of horizontal bundled tube.
Embodiment of the present utility model is exactly the improvement of not making from dust collection capacity and dust stratification problem for boiler in prior art.One of core idea of the utility model embodiment is, by changing the arrangement of boiler back end ductwork, utilize the variation of boiler back end ductwork flue gas flow direction, set up deduster in back-end ductwork, improve boiler from dust collection capacity, reach the purpose of abandoning external dedusting after stove, to reduce dust arrester floor space and equipment cost.
Carry the structure chart of back-end ductwork example of the biomass boiler of one-level ceramic multi-tube cyclone dust removal with reference to of the present utility model a kind of shown in figure 2, for sake of convenience, the left side of alleged " left side " and " right side " and accompanying drawing itself hereinafter, right is consistent, but structure of the present utility model is not played to the restriction effect.
As shown in Figure 2, in the utility model embodiment, the described back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal can adopt U-shaped layout, based on described U-shaped layout, described back-end ductwork can be divided into left flue and right flue, left flue is connected by the U-shaped foot passage with right flue, this flue profile can be preferably rectangle, can certainly be other shapes such as cylinder type, whole back-end ductwork preferably can support with the boiler tail steelframe, can certainly adopt other bolts or embedded mode to fix.In described back-end ductwork inside, the flow of flue gas direction can be: flue gas, after the back-end ductwork top drops to bottom, then rises to top by bottom; Be appreciated that the inner flow of flue gas direction of described back-end ductwork, from top to bottom for the flue gas admission passage, is the fume emission passage from the bottom up; Be that the inner flow of flue gas of back-end ductwork is the rear rising that first descends.
In the utility model embodiment, the described back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal can comprise: be arranged in described back-end ductwork flue gas and upwards be folded to the deduster 101 of mobile position from level, and, be positioned at the first flue-dust retainer 102 of described deduster 101 belows; After deduster separates flue dust from flue gas, flue dust drops in the first flue-dust retainer 102.
As a kind of preferred exemplary of the utility model specific implementation, described deduster 101 can adopt and axially enter type multitube Ceramic dust collector, and in specific implementation, described deduster 101 preferably can be fixed on by the porous barrier of steel the right side flue.With reference to the of the present utility model a kind of structure chart that axially enters type multitube Ceramic dust collector shown in figure 3, the ceramic multi-tube cyclone dust collectors are arranged with a lot of laterally ceramic dust-removing elements arranged side by side, after ash-laden gas enters described ceramic dust-removing element, the soot dust granule of separating falls under gravity into the first flue-dust retainer 102, and purified gas is discharged through the fume emission passage.The dust removal process of ceramic dust-removing element wherein can axially enter the blade schematic diagram with reference to the ceramic dust-removing element shown in figure 4, the airflow direction of smoke gas flow process element as shown by arrows in FIG., do rotary flowing, utilize the centrifugal force produced that the unequal soot dust granule of quality is separated with flue gas, carry out centrifugal dedusting.
After deduster 101 separates flue dust from flue gas, flue dust is under Action of Gravity Field, drop in the first flue-dust retainer 102, the effect of flue-dust retainer is for collecting dust, so that unified discharge, flue-dust retainer and flue Nature Link, flue-dust retainer is up big and down small, the shape of flue-dust retainer can be pyramid, in the situation that highly allow also can be transitioned into taper shape from pyramid.
In a kind of preferred embodiment of the present utility model, the described back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal can also comprise: the water seal scraper plate Machine for cleaning-out ash 103 that is positioned at described the first flue-dust retainer 102 bottoms.Described water seal scraper plate Machine for cleaning-out ash 103 not only can guarantee the negative pressure of boiler at this position, can also prevent that cold wind from leaking into boiler, regularly takes dust stratification simultaneously out of.
In the utility model embodiment, the described back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal can also comprise: be positioned at flue gas one or more economizers 104 of mobile position from bottom to top.
In specific implementation, the described back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal can also comprise and is positioned at flue gas one or more economizers of mobile position from top to bottom.
For for purpose of brevity, the economizer that described Fig. 2 is positioned at the left side back-end ductwork is placed with " one-level economizer " from top to down successively, " secondary economizer ", " three grades of economizers ", " level Four economizer ", " the second air preheater ", the economizer that is positioned at the right side back-end ductwork is placed with " final stage economizer ", " the first air preheater 105 ".Be positioned at flue gas from bottom to top mobile position be provided with one or more economizers 104, for absorbing the heat of flue gas in flue, promote hot efficiency of combustion, in the back-end ductwork of left side, " one-level economizer " from top to down distributing, " secondary economizer ", " three grades of economizers ", " level Four economizer ", " the second air preheater ", it should be noted that, these economizers can arrange arbitrarily in practice, can arrange one, also can arrange a plurality of, the concrete quantity arranged can be depending on flue length and thermally equilibrated needs, the utility model to this without being limited.These economizers 104 can be adopted as horizontal bundled tube economizer, but are fixed on U-shaped back-end ductwork inside by bolt or other fixed forms.Particularly, the effect of described economizer 104 can be: 1, absorb the heat of low-temperature flue gas, reduce exhaust gas temperature, reduce flue gas loss, fuel saving; 2, because feedwater enters drum before first in the economizer heating, therefore reduce the heat absorption of feedwater at heating surface, can replace the evaporating heating surface that the part cost is higher with economizer; 3, feed temperature has improved, and enters drum and will reduce wall temperature difference, and thermal stress reduces accordingly, extends drum service life.
In a kind of preferred embodiment of the present utility model, the described back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal can also comprise: be positioned at described flue gas the second air preheater of the below of one or more economizers of mobile position from top to bottom; And, be positioned at flue gas the first air preheater 105 of the top of one or more economizers 104 of mobile position from bottom to top.Air preheater is generally referred to as air preheater, multiplex in coal-fired power station boiler, can be box type or swinging, in preferred embodiment, is box type.Described box type air preheater operation principle is: flue gas is from bobbin carriage outer flow warp, and air passes through from bobbin carriage inside, by temperature difference different heat transfer.Identical with principles such as economizer, superheaters.
In a kind of preferred embodiment of the present utility model, the described back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal can also comprise: the unloading valve 106 that is positioned at described the second flue-dust retainer below.Particularly, flue bottom in the left side is provided with a flue-dust retainer, flue-dust retainer and flue Nature Link, and flue-dust retainer is up big and down small, and the shape of flue-dust retainer can be pyramid, in the situation that highly allow also can be transitioned into taper shape from pyramid.At flue-dust retainer lower openings place, a unloading valve 106 is housed.For back-end ductwork is protected safely, selecting of described unloading valve just make the maximum pressure and the maximum temperature that seal and can bear flue below flue-dust retainer.
In a kind of preferred embodiment of the present utility model, the described back-end ductwork dust removal process that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal can comprise following several stages:
The flue gas decline stage: flue gas descends from described back-end ductwork top, through economizer and the second air preheater;
The dedusting stage: upwards be folded to mobile position at flue gas from level, flue gas enters deduster 101, and after deduster separates flue dust from flue gas, flue dust drops to the first flue-dust retainer interior 102;
The flue gas ascent stage: the flue gas through dust removal process rises from described back-end ductwork bottom, through economizer 104 and the first air preheater 105, from described back-end ductwork top, discharges.
It should be noted that, in above-mentioned embodiment U-shaped structure back-end ductwork and everywhere immobilization material be that metal material forms, miscellaneous part is according to function, purposes and suitable environment carry out selection.
In sum, the utility model is by adopting U-shaped layout to change the flow of flue gas direction at boiler back end ductwork, particularly, prior art flow of flue gas direction is first up and then down, flow of flue gas direction of the present utility model is to get on, get off, be that flow of flue gas (dedusting) is divided into following three phases: 1, the flue gas decline stage: flue gas descends from described back-end ductwork top, through economizer and the second air preheater; 2, the dedusting stage: upwards be folded to mobile position at flue gas from level, flue gas enters deduster, and after deduster 101 separates flue dust from flue gas, flue dust drops to the first flue-dust retainer interior 102; 3, flue gas ascent stage: the flue gas through dust removal process rises from described back-end ductwork bottom, through economizer 104 and the first air preheater 105, from described back-end ductwork top, discharges.Solved horizontal bundled tube economizer dust stratification problem.
Further, upwards be folded to mobile position at flue gas from level, arranged deduster, arranged the first flue-dust retainer 102 below this deduster 101, for guaranteeing the negative pressure of boiler at this flue-dust retainer position, prevent that cold wind from leaking into boiler, regularly take dust stratification simultaneously out of, also in the flue-dust retainer bottom, be provided with water seal scraper plate Machine for cleaning-out ash 103 simultaneously, after flue dust enters deduster 101 along back-end ductwork, flue dust is under the effect of rotary centrifugal force, separated from flue gas, and then in Action of Gravity Field drops to flue-dust retainer 102, reach the effect of initial dedusting, the utility model passes through at back-end ductwork internal placement deduster, thereby improved biomass boiler from dust collection capacity.
The utility model embodiment also discloses a kind of biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube, specifically can comprise: feeding system, the combustion furnace be connected with described feeding system, and, the back-end ductwork be connected with described combustion furnace: described back-end ductwork adopts U-shaped layout, flue gas, after described back-end ductwork top drops to bottom, then rises to top by bottom; Described back-end ductwork can comprise: be arranged in described back-end ductwork flue gas and upwards be folded to the deduster of mobile position from level, the first flue-dust retainer that is arranged in described deduster below when deduster from flue gas separation flue dust, flue dust drops in flue-dust retainer, is positioned at flue gas one or more economizers of mobile position from bottom to top; And, be positioned at described flue gas the first air preheater of the economizer top of mobile position from bottom to top.
In the utility model embodiment, the described biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube can also comprise: be arranged in described back-end ductwork flue gas and upwards be folded to the deduster of mobile position from level, and, be positioned at the first flue-dust retainer of described deduster below; After deduster separates flue dust from flue gas, flue dust drops in the first flue-dust retainer.
As a kind of preferred exemplary of the utility model specific implementation, described deduster can adopt and axially enter type multitube Ceramic dust collector.
In a kind of preferred embodiment of the present utility model, the described biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube can also comprise: the water seal scraper plate Machine for cleaning-out ash that is positioned at described flue-dust retainer bottom.
In specific implementation, the described biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube can also comprise: be arranged in back-end ductwork flue gas one or more economizers of mobile position from top to bottom, and, described flue gas from top to bottom mobile position below the second air preheater.
In a kind of preferred embodiment of the present utility model, the described biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube can also comprise: the unloading valve that is positioned at described the second air preheater below.
In concrete application, the described dedusting stage that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal can comprise the steps:
The flue gas decline stage: flue gas descends from described back-end ductwork top, through economizer and the second air preheater;
The dedusting stage: upwards be folded to mobile position at flue gas from level, flue gas enters deduster, and after deduster separates flue dust from flue gas, flue dust drops in the first flue-dust retainer;
The flue gas ascent stage: the flue gas through dust removal process rises from described back-end ductwork bottom, through economizer and the first air preheater, from described back-end ductwork top, discharges.
For the embodiment of the biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube, because it is substantially similar to back-end ductwork embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of parts embodiment.
Finally, also it should be noted that, in this article, relational terms such as the first and second grades only is used for an entity or operation are separated with another entity or operating space, and not necessarily requires or imply between these entities or operation the relation of any this reality or sequentially of existing.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make the process, method, article or the equipment that comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.In the situation that not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
Above to a kind of back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal provided by the utility model, and, a kind of biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube is described in detail, applied specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model simultaneously.
Claims (10)
1. a back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal, is characterized in that, described back-end ductwork adopts U-shaped layout, and flue gas, after described back-end ductwork top drops to bottom, then rises to top by bottom;
Described back-end ductwork comprises:
Be arranged in described back-end ductwork flue gas and upwards be folded to the deduster of mobile position from level, and, be positioned at the first flue-dust retainer of described deduster below; After deduster separates flue dust from flue gas, flue dust drops in the first flue-dust retainer;
Be positioned at flue gas one or more economizers of mobile position from bottom to top;
And,
Be positioned at described flue gas the first air preheater of the economizer top of mobile position from bottom to top.
2. the back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal according to claim 1, is characterized in that, also comprises:
Be positioned at the water seal scraper plate Machine for cleaning-out ash of described the first flue-dust retainer bottom.
3. the back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal according to claim 1, is characterized in that, described deduster is for axially entering the type multi-tube dust cleaner.
4. according to claim 1 or the 2 or 3 described back-end ductworks that carry the biomass boiler of one-level ceramic multi-tube cyclone dust removal, it is characterized in that, also comprise:
Be positioned at flue gas one or more economizers of mobile position from top to bottom;
And,
Described flue gas from top to bottom mobile position below the second air preheater.
5. the back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal according to claim 4, is characterized in that, also comprises:
Be positioned at described flue gas second flue-dust retainer of mobile bottom position from top to bottom;
And,
Be positioned at the unloading valve of described the second flue-dust retainer below.
6. according to the described back-end ductwork that carries the biomass boiler of one-level ceramic multi-tube cyclone dust removal of any one in claim 1, it is characterized in that, when the back-end ductwork that adopts described biomass boiler carries out dedusting, comprise with the next stage:
The flue gas decline stage: flue gas descends from described back-end ductwork top, through economizer and the second air preheater;
The dedusting stage: upwards be folded to mobile position at flue gas from level, flue gas enters deduster, and after deduster separates flue dust from flue gas, flue dust drops in the first flue-dust retainer;
The flue gas ascent stage: the flue gas through dust removal process rises from described back-end ductwork bottom, through economizer and the first air preheater, from described back-end ductwork top, discharges.
7. a biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube, it is characterized in that, comprise feeding system, the combustion furnace be connected with described feeding system, and, the back-end ductwork be connected with described combustion furnace: described back-end ductwork adopts U-shaped layout, and flue gas, after described back-end ductwork top drops to bottom, then rises to top by bottom;
Described back-end ductwork comprises:
Be arranged in described back-end ductwork flue gas and upwards be folded to the deduster of mobile position from level, and, be positioned at the first flue-dust retainer of described deduster below; After deduster separates flue dust from flue gas, flue dust drops in the first flue-dust retainer;
Be positioned at flue gas one or more economizers of mobile position from bottom to top;
And,
Be positioned at described flue gas the first air preheater of the economizer top of mobile position from bottom to top.
8. the biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube according to claim 7, is characterized in that, described back-end ductwork also comprises:
Be positioned at the water seal scraper plate Machine for cleaning-out ash of described the first flue-dust retainer bottom.
9. the biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube according to claim 7, is characterized in that, described deduster is for axially entering the type multi-tube dust cleaner.
10. the biomass boiler that carries the cyclone dust removal of one-level ceramic multi-tube according to claim 7, is characterized in that, described back-end ductwork also comprises:
Be positioned at flue gas one or more economizers of mobile position from top to bottom;
And,
Described flue gas from top to bottom mobile position below the second air preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202035241U CN203364148U (en) | 2013-04-19 | 2013-04-19 | Biomass boiler with own first-class multi-pipe cyclone dust removal devices and rear smoke channel thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202035241U CN203364148U (en) | 2013-04-19 | 2013-04-19 | Biomass boiler with own first-class multi-pipe cyclone dust removal devices and rear smoke channel thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203364148U true CN203364148U (en) | 2013-12-25 |
Family
ID=49811902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202035241U Expired - Fee Related CN203364148U (en) | 2013-04-19 | 2013-04-19 | Biomass boiler with own first-class multi-pipe cyclone dust removal devices and rear smoke channel thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203364148U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221812A (en) * | 2016-09-19 | 2016-12-14 | 中国科学院山西煤炭化学研究所 | A kind of technique for the cooling dedusting of fluid bed High Temperature High Pressure coal gas |
| CN107606608A (en) * | 2017-09-30 | 2018-01-19 | 山东琦泉能源科技有限公司 | A kind of biomass high-temperature super-pressure circulating fluidized bed boiler flue ash disposal system |
| CN114939308A (en) * | 2022-05-17 | 2022-08-26 | 北京华能长江环保科技研究院有限公司 | Pre-dedusting method for pre-deduster of boiler |
-
2013
- 2013-04-19 CN CN2013202035241U patent/CN203364148U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221812A (en) * | 2016-09-19 | 2016-12-14 | 中国科学院山西煤炭化学研究所 | A kind of technique for the cooling dedusting of fluid bed High Temperature High Pressure coal gas |
| CN107606608A (en) * | 2017-09-30 | 2018-01-19 | 山东琦泉能源科技有限公司 | A kind of biomass high-temperature super-pressure circulating fluidized bed boiler flue ash disposal system |
| CN114939308A (en) * | 2022-05-17 | 2022-08-26 | 北京华能长江环保科技研究院有限公司 | Pre-dedusting method for pre-deduster of boiler |
| CN114939308B (en) * | 2022-05-17 | 2023-08-25 | 北京华能长江环保科技研究院有限公司 | Pre-dedusting method for pre-deduster of boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI617773B (en) | Horizontal circulating fluidized bed superheated steam boiler | |
| CN105164469B (en) | Include the fluidized-bed combustion boiler of multifunctional inertia gravity separator | |
| JP5142735B2 (en) | Coal fired boiler | |
| CN102635844A (en) | Boiler system using waste heat of flue gas of rotary hearth furnace | |
| CN203364148U (en) | Biomass boiler with own first-class multi-pipe cyclone dust removal devices and rear smoke channel thereof | |
| CN203605455U (en) | Double-stage separation efficient clean fluidized bed coal hot air furnace | |
| CN203364147U (en) | Biomass boiler with own impact-type inertial dust collection devices and rear smoke channel thereof | |
| CN211084042U (en) | Pure-burning biomass environment-friendly circulating fluidized bed boiler water vapor system | |
| CN103234212B (en) | Carry the biomass boiler of impact type inertia dust-removing device | |
| CN203848696U (en) | Heat accumulating type settling chamber waste heat storage device | |
| CN201437986U (en) | Special waste fluidized bed incinerator | |
| CN202692721U (en) | Integrated kiln head waste heat boiler for cement kiln | |
| CN103234211B (en) | Carry the biomass boiler of one-level ceramic multi-tube cyclone dust removal | |
| CN201811226U (en) | Gas and air device of condensation type circulating fluidized-bed boiler | |
| CN104279541A (en) | Waste-heat boiler | |
| CN215982491U (en) | Pipe frame type waste heat recovery boiler matched with garbage pyrolysis incineration system | |
| CN201636834U (en) | Calcium carbide afterheat boiler | |
| KR101560715B1 (en) | Air distribution-manifold for fluidzed bed boiler | |
| CN211952779U (en) | Energy-saving and environment-friendly treatment system for mixed combustion and incineration of industrial three wastes | |
| CN204042840U (en) | Scoot burning boiler | |
| CN201522092U (en) | Novel environment-friendly energy-saving boiler | |
| CN106196035A (en) | For separator and the anti-block apparatus of material returning device in biomass recirculating fluidized bed boiler | |
| CN205504940U (en) | Be applied to biomass fuel burner's boiler | |
| CN205535709U (en) | Flue waste heat utilization system | |
| CN206094044U (en) | Coal slurry fluidized bed boiler structure of multistage separation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20190419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |