CN106402874A - Garbage incinerator - Google Patents
Garbage incinerator Download PDFInfo
- Publication number
- CN106402874A CN106402874A CN201610666727.2A CN201610666727A CN106402874A CN 106402874 A CN106402874 A CN 106402874A CN 201610666727 A CN201610666727 A CN 201610666727A CN 106402874 A CN106402874 A CN 106402874A
- Authority
- CN
- China
- Prior art keywords
- secondary air
- incinerator
- flue
- nozzle
- jet
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention relates to a garbage incinerator. The garbage incinerator comprises an incinerator grate, an incinerator throat part located above the incinerator grate, and a flue communicating with the incinerator throat part. The incinerator throat part is provided with a plurality of secondary air first nozzles. A plurality of secondary air second nozzles are arranged on the position, above the secondary air first nozzles, of the flue. The secondary air second nozzles and the secondary air first nozzles are both connected to a secondary air mother pipe. The garbage incinerator has the following advantages that 1, through transformation of an air distribution system, the burning capacity of original secondary air nozzles is shared, and thus coking of a hearth is delayed; and 2, the only space of a site is fully used, and the garbage incinerator is suitable for transformation of an aged unit.
Description
Technical field
A kind of the present invention relates to field of waste incineration, in particular it relates to incinerator.
Background technology
During the use of domestic waste incineration row, feed fire grate effect is very crucial, and its reliability directly affects
Whole incinerator even entirely burns the reliability of power plant, thus have impact at the house refuse of whole burning power plant
Reason ability and economic benefit.
Adopting mechanical garbage incinerator existing waste incineration, the incinerator shown in Fig. 1 is just therein one more
Kind.As shown in figure 1, described incinerator include charging aperture 101, feed fire grate 102, be located at burner hearth in for waste incineration
Fire grate 103, be located at burn fire grate bottom First air air feed system 104, be located at furnace throat portion Secondary Air air feed system 105 with
And slag extractor 106.Additionally, incinerator also includes the flue positioned at described fire grate 103 top, charging aperture 101 front end, it is used for
Discharge flue gas.Rubbish pours described incinerator into from charging aperture, is entered by being fed the reciprocating described rubbish of effect of fire grate
Enter and burned on the siege in described incinerator, be oven-dried, be dehydrated in rubbish described in described dryer section, described rubbish mainly exists
Described burning zone is burnt, and has burnt totally through the rubbish of after-flame section, and remaining slag enters slag extractor afterwards, by arranging
Slag machine discharges out of the furnace.Wherein said First air is sent into from the described air compartment burning fire grate bottom, and described Secondary Air is from described rubbish
The furnace throat portion of incinerator sends into.
More and more perfect, the calorific value of house refuse with the horizontal more and more higher of domestic and municipal refuse receipts fortune system
Also more and more higher therewith, high heating value rubbish burns in incinerator easily makes burner hearth coking, makes burner hearth rear portion tied when serious, blocks up
Live the outlet of burner hearth, affect production run；Domestic most incinerator burner hearth mostly is adiabatic furnace, is not provided with burner hearth
Water-cooling wall, when refuse thermal value uprises, fire box temperature also increases, and makes coking more serious.
In waste incineration burner hearth, the ash content in rubbish is molten into liquid in thermal-flame or is in soft state, just
In the case of often, fire box temperature is maintained at 950 DEG C to 1050 DEG C, if fire box temperature is too high, if ash also maintains soft state
When contacting with burner hearth wall, it is easily caused coking, particularly near overfire air jet, due to the volatile matter in rubbish and Secondary Air
Produce higher heat after mixing, make that this regional temperature is too high to cause coking.
Separately due to the transformation limited space of incinerator, the size of burner hearth is difficult to change, and cannot arrange water in burner hearth
Cold wall.
Accordingly, it would be desirable to improve to described incinerator, to eliminate above-mentioned various problem.
Content of the invention
The present invention provides a kind of incinerator, the stuck problem of effectively solving pusher dolly, makes house refuse simultaneously
More uniformly spreading on fire grate, improves combustion efficiency.
The present invention is in order to solve problems of the prior art, there is provided a kind of incinerator, described incinerator bag
Include and burn fire grate, be located at the described furnace throat portion burning above fire grate and the flue connecting with described furnace throat portion, in described furnace throat
Portion is provided with some Secondary Air first jet, on described flue, is provided with some two above described Secondary Air first jet
Secondary wind second nozzle, wherein, described Secondary Air second nozzle and described Secondary Air first jet are connected to Secondary Air main pipe.
Alternatively, it is additionally provided with damper between described Secondary Air second nozzle and described Secondary Air main pipe.
Alternatively, by adjusting the aperture of described damper, to control described Secondary Air second nozzle secondary with described
The air quantity of wind first jet.
Alternatively, by adjusting the aperture of described damper, described flue temperature is controlled to be 820 DEG C -880 DEG C
Alternatively, described Secondary Air first jet arranges around described furnace throat portion.
Alternatively, described Secondary Air second nozzle arranges around described flue in the sustained height of described flue.
Alternatively, the distance at the position of described Secondary Air second nozzle to described flue top must assure that the stop of flue gas
Time is more than 2 seconds.
Alternatively, it is connected by square pipe between described Secondary Air second nozzle and described Secondary Air main pipe.
Alternatively, described Secondary Air second nozzle and described Secondary Air first jet are all by Secondary Air arm and described two
Secondary wind main pipe connection.
Alternatively, the lateral wall of described flue is provided with water-cooling wall, described Secondary Air second nozzle is from described water-cooling wall
The gap of wall pipe stretch in described flue.
Alternatively, described Secondary Air second nozzle and described Secondary Air first jet share a blower fan.
Alternatively, described furnace throat portion is adiabatic furnace.
Alternatively, described flue is arranged at the front end of described incinerator.
Incinerator of the present invention has advantages below：
1st, transformed by blowing system, share the quantity combusted of former overfire air jet, the coking of burner hearth can be delayed.
2nd, make full use of live only space it is adaptable to the transformation of old unit.
Brief description
The drawings below of the present invention is used for understanding the present invention in this as the part of the present invention.Shown in the drawings of this
Bright embodiment and its description, for explaining assembly of the invention and principle.In the accompanying drawings,
The structure chart of incinerator in Fig. 1 prior art；
Fig. 2 is the structural representation of the incinerator of the present invention；
Fig. 3 is the Secondary Air first jet of incinerator of the present invention and the structural representation of Secondary Air second nozzle.
Accompanying drawing identifies
101st, charging aperture 102, feed fire grate
103rd, fire grate 104, First air air feed system
105th, Secondary Air air feed system 106, slag extractor
1st, hopper chute 2, adiabatic furnace
3rd, water-cooling wall lower header 4, water-cooling wall
5th, secondary first wind nozzle 6, Secondary Air second nozzle
7th, Secondary Air arm 8, Secondary Air main pipe
9th, increased Secondary Air arm
Specific embodiment
In the following description, a large amount of concrete details are given to provide more thorough understanding of the invention.So
And, it is obvious to the skilled person that the present invention can one or more of these details and be able to
Implement.In other examples, in order to avoid obscuring with the present invention, some technical characteristics well known in the art are not entered
Row description.
It should be appreciated that when in this manual using term "comprising" and/or " inclusion ", it indicates that presence is described
Feature, entirety, step, operation, element and/or assembly, but do not preclude the presence or addition of other features one or more, entirety,
Step, operation, element, assembly and/or combinations thereof.
The present invention is in order to solve problems of the prior art, there is provided a kind of incinerator, as shown in figure 1, tool
Body ground include hopper chute 1, adiabatic furnace 2, water-cooling wall lower header 3, water-cooling wall 4, Secondary Air first jet 5, increase secondary
Wind first jet 6, Secondary Air arm 7, Secondary Air main pipe 8 and increased Secondary Air arm 9.
Below in conjunction with the accompanying drawings incinerator of the present invention is further described, first described rubbish in the present invention
Rubbish incinerator at least includes charging aperture, feed fire grate, the fire grate for waste incineration being located in burner hearth, is located at and burns under fire grate
The First air air feed system in portion, the Secondary Air air feed system being located at furnace throat portion and slag extractor.Additionally, incinerator also includes
Positioned at the flue of described incinerator front end, for discharging flue gas.Described incinerator can also comprise other conventional parts,
Will not be described here.
Reverse-flow incinerator selected by described incinerator in the present invention, wherein reverse-flow incinerator flue setting
Front end in incinerator.
Specifically, the furnace throat portion that wherein said incinerator is included above described incinerator is connected with described furnace throat portion
Flue, is provided with some Secondary Air first jet in described furnace throat portion, sets on described flue above described overfire air jet
It is equipped with some Secondary Air second nozzles, wherein, described Secondary Air second nozzle and described Secondary Air first jet are connected to two
Secondary wind main pipe.
Specifically, described Secondary Air first jet arranges around described furnace throat portion, is uniformly arranged at described furnace throat portion.
Alternatively, described Secondary Air second nozzle arranges around described flue in the sustained height of described flue.
Alternatively, it is additionally provided with damper, for adjusting between described Secondary Air second nozzle and described Secondary Air main pipe
Save the air quantity of described Secondary Air second nozzle and described Secondary Air first jet, the aperture change institute of big when of for example described damper
The air quantity stating Secondary Air second nozzle becomes big, and the air quantity of described Secondary Air first jet diminishes, and the aperture of described damper becomes
The air quantity of the described Secondary Air second nozzle of hour diminishes, and the air quantity of described Secondary Air first jet becomes big.
In order to ensure 850 degrees Celsius of 2 seconds rules in the first flue, Secondary Air first jet 6 position of increase to first
The distance at flue top must assure that the time of staying of flue gas is more than 2 seconds.
Alternatively, be provided with water-cooling wall on the lateral wall of described flue in the present invention, described Secondary Air second nozzle from
The gap of the wall pipe of described water-cooling wall is stretched in described flue.
Because the spacing between water-cooling wall 4 pipe is less, the jet pipe of the Secondary Air first jet 6 of increase adopts square pipe,
To make full use of space it is ensured that flow velocity is in scope of design.
For example it is connected by square pipe between described Secondary Air second nozzle and described Secondary Air main pipe.
Wherein, described Secondary Air second nozzle is all secondary with described by Secondary Air arm with described Secondary Air first jet
Wind main pipe connects, and by adjusting the aperture of described damper 10, adjusts described Secondary Air second nozzle and described Secondary Air
The air quantity of first jet, as shown in Figure 2.
Alternatively, by adjusting the aperture of described damper 10, described flue temperature is controlled to be 820 DEG C -880 DEG C
Preferably, described Secondary Air second nozzle shares a blower fan with described Secondary Air first jet.
As shown in figure 1, the present invention, in the present invention in order to share the quantity combusted of former Secondary Air first jet, delays burner hearth
Coking, increases by row's Secondary Air second nozzle 6, Secondary Air second nozzle 6 is from water-cooling wall 4 wall above Secondary Air first jet 5
The flue of boiler is stretched in the gap of pipe, and Secondary Air second nozzle 6 passes through increased Secondary Air arm 5 connecting secondary wind main pipe 8, with
Former Secondary Air first jet 5 shares a blower fan, and its air quantity can be adjusted by damper 10.
It is ensured that 100%MCR operating mode secondary air flow is constant during system operation, damper 10 is opened, now Secondary Air
One nozzle air quantity reduces, and Secondary Air second nozzle air quantity increases, and the aperture of the situation damper 10 according to slagging, institute
State the quantity combusted that Secondary Air second nozzle 6 can share former Secondary Air first jet, the coking of burner hearth can be delayed.
Incinerator of the present invention has advantages below：
1st, transformed by blowing system, share the quantity combusted of former overfire air jet, the coking of burner hearth can be delayed.
2nd, make full use of live only space it is adaptable to the transformation of old unit.
The present invention is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is only intended to
Citing and descriptive purpose, and be not intended to limit the invention in described scope of embodiments.In addition people in the art
Member, it is understood that the invention is not limited in above-described embodiment, can also make more kinds of according to the teachings of the present invention
Variants and modifications, within these variants and modifications all fall within scope of the present invention.Protection scope of the present invention by
The appended claims and its equivalent scope are defined.
Claims (13)
1. a kind of incinerator, described incinerator include burn fire grate, be located at described burn fire grate above furnace throat portion and
The flue connecting with described furnace throat portion, is provided with some Secondary Air first jet it is characterised in that described in described furnace throat portion
On flue, the top of described Secondary Air first jet be provided with some Secondary Air second nozzles, wherein, described Secondary Air second sprays
Mouth and described Secondary Air first jet are connected to Secondary Air main pipe.
2. incinerator according to claim 1 is it is characterised in that described Secondary Air second nozzle and described Secondary Air
It is additionally provided with damper between main pipe.
3. incinerator according to claim 2 it is characterised in that by adjust described damper aperture, with
Control the air quantity of described Secondary Air second nozzle and described Secondary Air first jet.
4. incinerator according to claim 2 is it is characterised in that by the aperture of the described damper of regulation, control
Make described flue temperature and be 820 DEG C -880 DEG C.
5. incinerator according to claim 1 is it is characterised in that described Secondary Air first jet is around described furnace throat
Portion arranges.
6. incinerator according to claim 1 is it is characterised in that described Secondary Air second nozzle is in described flue
Sustained height arranges around described flue.
7. incinerator according to claim 1 is it is characterised in that the position of described Secondary Air second nozzle is extremely described
The distance at flue top must assure that the time of staying of flue gas is more than 2 seconds.
8. incinerator according to claim 1 is it is characterised in that described Secondary Air second nozzle and described Secondary Air
Connected by square pipe between main pipe.
9. incinerator according to claim 1 is it is characterised in that described Secondary Air second nozzle and described Secondary Air
First jet is all connected with described Secondary Air main pipe by Secondary Air arm.
10. incinerator according to claim 1 is it is characterised in that be provided with water-cooled on the lateral wall of described flue
Wall, the gap of the wall pipe from described water-cooling wall for the described Secondary Air second nozzle is stretched into described flue.
11. incinerators according to claim 1 are it is characterised in that described Secondary Air second nozzle is secondary with described
Wind first jet shares a blower fan.
12. incinerators according to claim 1 are it is characterised in that described furnace throat portion is adiabatic furnace.
13. incinerators according to claim 1 are it is characterised in that before described flue is arranged at described incinerator
End.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610666727.2A CN106402874A (en) | 2016-08-12 | 2016-08-12 | Garbage incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610666727.2A CN106402874A (en) | 2016-08-12 | 2016-08-12 | Garbage incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106402874A true CN106402874A (en) | 2017-02-15 |
Family
ID=58005028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610666727.2A Pending CN106402874A (en) | 2016-08-12 | 2016-08-12 | Garbage incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106402874A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559831A (en) * | 2017-09-01 | 2018-01-09 | 佛山市南海绿电再生能源有限公司 | A kind of processing method for preventing waste incineration furnace coking |
| CN108916887A (en) * | 2018-09-12 | 2018-11-30 | 绿能（杭州）企业管理有限公司 | Suppress or eliminate the incinerator primary air arrangement of carbon monoxide |
| CN109812819A (en) * | 2019-03-14 | 2019-05-28 | 武汉深能环保新沟垃圾发电有限公司 | A kind of garbage burning boiler combustion chamber front and back arch anti-coking system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008057935A (en) * | 2006-09-04 | 2008-03-13 | Mitsubishi Heavy Ind Ltd | Stoker type incinerator and its combustion control method |
| CN202719609U (en) * | 2012-05-25 | 2013-02-06 | 广州环投技术设备有限公司 | Selective air distribution and combustion equipment for garbage incinerator |
| CN104456577A (en) * | 2014-12-03 | 2015-03-25 | 重庆三峰卡万塔环境产业有限公司 | Hearth of household garbage incinerator based on grate furnace |
| CN104566389A (en) * | 2015-01-16 | 2015-04-29 | 光大环保技术装备（常州）有限公司 | Low-nitrogen combustion type garbage incinerator and combustion method |
| CN105371282A (en) * | 2015-12-10 | 2016-03-02 | 光大环保（中国）有限公司 | low-nitrogen combustion garbage incinerator and combustion method |
| CN205424940U (en) * | 2015-12-09 | 2016-08-03 | 光大环保（中国）有限公司 | Burn burning furnace and overgrate air air distribution equipment suitable for high heating value domestic waste |
-
2016
- 2016-08-12 CN CN201610666727.2A patent/CN106402874A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008057935A (en) * | 2006-09-04 | 2008-03-13 | Mitsubishi Heavy Ind Ltd | Stoker type incinerator and its combustion control method |
| CN202719609U (en) * | 2012-05-25 | 2013-02-06 | 广州环投技术设备有限公司 | Selective air distribution and combustion equipment for garbage incinerator |
| CN104456577A (en) * | 2014-12-03 | 2015-03-25 | 重庆三峰卡万塔环境产业有限公司 | Hearth of household garbage incinerator based on grate furnace |
| CN104566389A (en) * | 2015-01-16 | 2015-04-29 | 光大环保技术装备（常州）有限公司 | Low-nitrogen combustion type garbage incinerator and combustion method |
| CN205424940U (en) * | 2015-12-09 | 2016-08-03 | 光大环保（中国）有限公司 | Burn burning furnace and overgrate air air distribution equipment suitable for high heating value domestic waste |
| CN105371282A (en) * | 2015-12-10 | 2016-03-02 | 光大环保（中国）有限公司 | low-nitrogen combustion garbage incinerator and combustion method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559831A (en) * | 2017-09-01 | 2018-01-09 | 佛山市南海绿电再生能源有限公司 | A kind of processing method for preventing waste incineration furnace coking |
| CN107559831B (en) * | 2017-09-01 | 2018-12-25 | 佛山市南海绿电再生能源有限公司 | A kind of processing method preventing waste incineration furnace coking |
| CN108916887A (en) * | 2018-09-12 | 2018-11-30 | 绿能（杭州）企业管理有限公司 | Suppress or eliminate the incinerator primary air arrangement of carbon monoxide |
| CN109812819A (en) * | 2019-03-14 | 2019-05-28 | 武汉深能环保新沟垃圾发电有限公司 | A kind of garbage burning boiler combustion chamber front and back arch anti-coking system |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |