CN108870380A - A kind of biomass gasification fired environment-protection boiler - Google Patents
A kind of biomass gasification fired environment-protection boiler Download PDFInfo
- Publication number
- CN108870380A CN108870380A CN201810465977.9A CN201810465977A CN108870380A CN 108870380 A CN108870380 A CN 108870380A CN 201810465977 A CN201810465977 A CN 201810465977A CN 108870380 A CN108870380 A CN 108870380A
- Authority
- CN
- China
- Prior art keywords
- water
- tube
- water cooling
- cooling system
- header
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B90/00—Combustion methods not related to a particular type of apparatus
- F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
- F23B90/06—Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
-
- 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
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Solid-Fuel Combustion (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a kind of biomass gasification fired environment-protection boilers, including drum, water-cooling system, feed inlet, secondary air channel, ash exhauster, outlet flue, header, support base, insulating layer, it is surrounded in entire furnace by water-cooling system, it is divided into vaporizer, secondary furnace and back-end ductwork, the water-cooling system is made of drum, header, water cooling tube, band steel, steam guiding tube, down-comer, water cooling tube, steam guiding tube, down-comer extend through drum and header and weld integral, and water cooling tube and band steel are welded into membrane wall.Boiler combustion temperature of the invention is low, prevents high-temperature coking and reduces NOx generation amount；Smoke dust discharge concentration is low；Heat preservation and good seal；It is stable；Energy conservation and environmental protection.
Description
Technical field
The present invention relates to a kind of biomass gasification fired environment-protection boilers, belong to biomass combustion and heat exchange equipment.
Background technique
Traditional biomass boiler generallys use coal-fired combustion equipment (fixed grate, traveling-grate stoker, reciprocal grate, circulation
Fluidized bed etc.) direct combustion is carried out, direct-fired biomass boiler is because ignition temperature is high, and there are coking, flue dust and NOx initial ejection are dense
Degree is high, seals and keep the temperature bad, the problems such as running cigarette of easily leaking out.
Summary of the invention
It is above-mentioned present invention aims at solving the problems, such as, a kind of gasification of biomass environment-protection boiler, biogas are provided
Change, burn and exchange heat and all completed in boiler internal, boiler surrounding is surrounded by membrane wall.By low-temperature burning after gasification of biomass, have
It avoids high-temperature coking and reduces flue dust and the initial ejection concentration of NOx to effect, stablize boiler operatiopn, energy conservation and environmental protection.
The present invention is achieved through the following technical solutions：
A kind of biomass gasification fired environment-protection boiler, including drum, water-cooling system, feed inlet, secondary air channel, ash exhauster, go out
Mouth, header, support base, insulating layer, entire furnace is interior to be surrounded by water-cooling system, is divided into vaporizer, secondary furnace and back-end ductwork, institute
It states water-cooling system to be made of drum, header, water cooling tube, band steel, steam guiding tube, down-comer, water cooling tube, steam guiding tube, down-comer difference
Through drum and header and weld integral, water cooling tube and band steel are welded into membrane wall；The feed inlet is located at outside vaporizer
Side is welded on water cooling tube；The secondary air channel is located at below feed inlet, is welded on water cooling tube；The vaporizer bottom is
Water-cooled grate is welded by part water cooling tube with fire grate segment；The ash exhauster is located at below water-cooled grate, by revolution ash discharge
Device, spiral tapping machine, support base, transmission device are constituted；The revolution ash ejector is formed by connecting by axis a and rake teeth through screw, spiral shell
Rotation mucking machine is welded by axis b with flight；The insulating layer is covered in water-cooling system outer surface.
The water-cooled grate is tilting with angle [alpha] by water cooling tube, -30 ° of α=20 °, and fire grate segment and water cooling tube angle are in the angle β, β
=5 ° -10 °, each fire grate segment forms gap, so that wind is blowed to fuel by gap and is blown lime-ash downwards, so that lime-ash be made to fall
It is automatically drained out on revolution ash ejector by spiral tapping machine.
The vaporizer, secondary furnace, back-end ductwork are surrounded that cooling condition is good, and ignition temperature is low, prevents height by water-cooling system
Warm coking simultaneously reduces NOx generation amount.
The back-end ductwork is arranged below drum, is internally provided with extended surface tube row, (can also be by by fin tubular type coiled pipe
Light pipe substitution) it constitutes, the high-temperature flue gas generated after welding, secondary furnace burning with header is arranged by back-end ductwork and extended surface tube
It is discharged outside boiler after abundant absorbing and cooling temperature through smoke outlet.
Compared with prior art, the present invention having the following advantages that：Ignition temperature is low, prevents high-temperature coking and reduces NOx life
Cheng Liang；Smoke dust discharge concentration is low；Heat preservation and good seal；It is stable；Energy conservation and environmental protection.
Detailed description of the invention
Fig. 1 makes a living continuous gasification of substances rich environment-protection boiler assembly figure.
Fig. 2 is the cross sectional plan view of Fig. 1.
Fig. 3 is water-cooled grate structure and connection figure.
Fig. 4 is back-end surfaces arrangement schematic diagram.
Fig. 5 is ash exhauster cross-sectional view.
Fig. 6 is the front view of Fig. 1.
Fig. 7 is the rearview of Fig. 1.
In figure：1, drum；2, water-cooling system；3, feed inlet；4, secondary air channel；5, water-cooled grate；6, fire grate segment；7, it turns round
Ash ejector；8, header；9, support base；10：Spiral tapping machine；11, ash exhauster；12, vaporizer；13, insulating layer；14, after-flame
Room；15, back-end ductwork；16, extended surface tube is arranged；17, outlet flue；18, water cooling tube；19, transmission device；20, axis a；21, rake teeth；22,
Axis b；23, flight；24, band steel；25, fire grate segment；26, steam guiding tube, with drum 1 and header 8 through welding；27：Down-comer, with
Drum 1 and header 8 are through welding.
Specific embodiment
The present invention is described in further detail below by specific embodiment and in conjunction with attached drawing.
Embodiment：
Biomass material enters vaporizer 12 from feed inlet 3, falls on water-cooled grate 5 and burns and sufficiently discharge fugitive constituent, burning produces
Raw CO2 is reduced into CO in vaporizer 12, and CO, fugitive constituent are lighted after 12 top of vaporizer is mixed with Secondary Air, enters
Pot is discharged by outlet flue 17 after the 16 heat exchange cooling of back-end ductwork 15 and extended surface tube row in 14 completely burned of secondary furnace, flue gas
Outside furnace, and the lime-ash generated after fuel gasification, it is continuously automatically drained out outside furnace by revolution ash ejector 7 and spiral tapping machine 10.
In above-described embodiment, water-cooled grate 5 is made of fire grate segment 6 and water cooling tube 18, fire grate segment 6 and 18 angle of water cooling tube
5 ° -10 °, form gap between each fire grate segment, the First air of air compartment is blown lime-ash to fuel air feed and downwards by gap, makes ash
Slag falls on revolution ash ejector 7 and is automatically drained out.The extended surface tube row arranged in back-end ductwork, according to the capacity and tail flue gas of boiler
Temperature deployment tube row, pipe row are made of extended surface tube, and flue gas passes through smoke outlet after back-end ductwork and extended surface tube row's heat exchange cooling
It is discharged outside boiler.
Biomass gasification, and combustion on water-cooled grate not only reduces the original discharge concentration of ash, and due to burning temperature
It spends low, it is therefore prevented that high-temperature coking reduces the production quantity of NOx, environment-friendly high-efficiency.The lime-ash generated burn by revolution ash ejector and spiral shell
Boiler is discharged on rotation mucking machine, does not influence burning and gasification of the fuel on water-cooled grate, boiler continuous and stable is enable to run.
Claims (6)
1. a kind of biomass gasification fired environment-protection boiler, it is characterised in that including drum, water-cooling system, feed inlet, secondary air channel,
Ash exhauster, outlet flue, header, support base, insulating layer are surrounded by water-cooling system in entire furnace, be divided into vaporizer, secondary furnace and
Back-end ductwork, the water-cooling system are made of drum, header, water cooling tube, band steel, steam guiding tube, down-comer, water cooling tube, steam guiding tube,
Down-comer extends through drum and header and welds integral, and water cooling tube and band steel are welded into membrane wall；The feed inlet position
On the outside of vaporizer, it is welded on water cooling tube；The secondary air channel is located at below feed inlet, is welded on water cooling tube；The gas
Change room bottom is water-cooled grate, is welded by part water cooling tube with fire grate segment；The ash exhauster is located at below water-cooled grate,
It is made of revolution ash ejector, spiral tapping machine, support base, transmission device；The revolution ash ejector is connected by axis a and rake teeth through screw
It connects, spiral tapping machine is welded by axis b with flight；The insulating layer is covered in water-cooling system outer surface.
2. biomass gasification fired environment-protection boiler according to claim 1, it is characterised in that the water-cooled grate is by water cooling
Pipe is tilting with angle [alpha], -30 ° of α=20 °, and fire grate segment and water cooling tube angle are in the angle β, -10 ° of β=5 °, and each fire grate segment forms gap,
So that wind is blowed to fuel by gap and be blown lime-ash downwards, so that falling in lime-ash on revolution ash ejector passes through screw slag tap
Machine is automatically drained out.
3. biomass gasification fired environment-protection boiler according to claim 1 or 2, it is characterised in that the vaporizer, after-flame
Room, back-end ductwork are surrounded by water-cooling system, and cooling condition is good, and ignition temperature is low, are prevented high-temperature coking and are reduced NOx generation
Amount.
4. biomass gasification fired environment-protection boiler according to claim 1 or 2, it is characterised in that the back-end ductwork setting
Below drum, it is internally provided with extended surface tube row, is made of fin tubular type coiled pipe, with header through welding, secondary furnace burning
The high-temperature flue gas generated afterwards after back-end ductwork and the abundant absorbing and cooling temperature of extended surface tube row through smoke outlet by being discharged outside boiler.
5. biomass gasification fired environment-protection boiler according to claim 1 or 2, it is characterised in that：Boiler is all by water cooling
System is surrounded, and heat preservation and good seal do not leak out and run cigarette.
6. biomass gasification fired environment-protection boiler according to claim 4, it is characterised in that the extended surface tube row is available
Light pipe substitution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465977.9A CN108870380A (en) | 2018-05-16 | 2018-05-16 | A kind of biomass gasification fired environment-protection boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465977.9A CN108870380A (en) | 2018-05-16 | 2018-05-16 | A kind of biomass gasification fired environment-protection boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108870380A true CN108870380A (en) | 2018-11-23 |
Family
ID=64333507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810465977.9A Withdrawn CN108870380A (en) | 2018-05-16 | 2018-05-16 | A kind of biomass gasification fired environment-protection boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108870380A (en) |
-
2018
- 2018-05-16 CN CN201810465977.9A patent/CN108870380A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2864378Y (en) | Multistage multi-room gas boiler for coal gasification | |
| CN102330993A (en) | Composite structure for high-temperature spiral secondary air and arch in biomass fuel chain boiler | |
| CN105276806B (en) | Dense tobacco flue-curing house high temperature hot-blast furnace | |
| CN103644562A (en) | Combined type energy-saving biomass fuel boiler | |
| CN104315500A (en) | Biomass gasifying and combustion boiler | |
| CN205717142U (en) | Biomass double furnace thorax gas-steam boiler and combustion system thereof | |
| CN205746763U (en) | A kind of biomass steam generator | |
| CN104676617B (en) | A kind of burning boiler flue accumulation prevention structure | |
| CN102128446B (en) | Boiler for carrying out mixed combustion on carbon black tail gas and coal | |
| CN104654289B (en) | A kind of crop straw burning fluidized-bed combustion boiler | |
| CN201443863U (en) | Energy-saving environment-friendly boiler | |
| CN203880691U (en) | Chimney-free multifunctional oil/gas-fired boiler | |
| CN202013015U (en) | Vertical half gas positive burning heating boiler | |
| CN108870380A (en) | A kind of biomass gasification fired environment-protection boiler | |
| CN201237344Y (en) | Environment-protection energy-saving normal pressure water-heating boiler for converting coal into coal gas | |
| CN205119022U (en) | Biomass gasification burning environmental protection boiler | |
| CN209295083U (en) | A kind of mating waste heat steam boiler of novel biomass gasifying | |
| CN203949146U (en) | Combined screw thread pipe boiler | |
| CN106247615A (en) | Double fuel boiler | |
| CN200940928Y (en) | Forward/reverse purifying burning boiler having coal gasifying 3 chambers | |
| CN105402720A (en) | Biomass gasification combustion environment-friendly boiler | |
| CN205119468U (en) | Intensive high temperature hot air stove for tobacco flue -curing house | |
| CN201074898Y (en) | Environment protection energy-saving boiler type stalk gasification boiler | |
| CN205746762U (en) | Biomass steam generator | |
| CN205843032U (en) | A kind of biomass hot water boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181123 |