CN110566979A - Secondary air arrangement structure of grate waste incinerator - Google Patents
Secondary air arrangement structure of grate waste incinerator Download PDFInfo
- Publication number
- CN110566979A CN110566979A CN201910943078.XA CN201910943078A CN110566979A CN 110566979 A CN110566979 A CN 110566979A CN 201910943078 A CN201910943078 A CN 201910943078A CN 110566979 A CN110566979 A CN 110566979A
- Authority
- CN
- China
- Prior art keywords
- secondary air
- air pipe
- incinerator
- arrangement structure
- flue gas
- 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- Withdrawn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
- 239000002699 waste material Substances 0.000 title description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 23
- 239000003546 flue gas Substances 0.000 claims description 23
- 239000000779 smoke Substances 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- 239000010791 domestic waste Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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
- F23G5/44—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J11/00—Devices for conducting smoke or fumes, e.g. flues
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2207/00—Control
- F23G2207/10—Arrangement of sensing devices
- F23G2207/105—Arrangement of sensing devices for NOx
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
Abstract
The invention relates to the technical field of garbage incinerators, in particular to a secondary air arrangement structure of a grate garbage incinerator, which can effectively inhibit the generation of NOx and comprises an incinerator.
Description
Technical Field
The invention relates to the technical field of garbage incinerator structures, in particular to a secondary air arrangement structure of a grate garbage incinerator.
Background
The environmental protection is a basic national policy of China, and the living standard of people is continuously improved. The increasing discharge of municipal domestic waste and industrial waste causes increasingly serious environmental problems. The garbage incineration has the comprehensive advantages of reduction, harmlessness and recycling. The grate waste incinerator is widely used as a main mode for treating waste, wherein the standard emission of flue gas is required to meet the requirement of environmental protection, along with the improvement of living standard, the calorific value of the waste entering the incinerator is higher and higher, the temperature of the flue gas at the outlet of the incinerator is also higher and higher, so that the quantity of NOx generated is also increased continuously, and although secondary air is introduced into the existing grate waste incinerator, the requirement of temperature regulation cannot be met, so that a large amount of NOx is discharged.
Disclosure of Invention
In order to solve the problem of large amount of generated NOx in the prior art, the invention provides a secondary air arrangement structure of a grate garbage incinerator, which can effectively inhibit the generation of NOx.
The technical scheme is as follows: a secondary air arrangement structure of a grate garbage incinerator comprises the incinerator and is characterized in that an upper layer air secondary air pipe and a lower layer smoke secondary air pipe are arranged at the front arch and the rear arch of the incinerator respectively, air secondary air is introduced into the upper layer air secondary air pipe, and smoke secondary air is introduced into the lower layer smoke secondary air pipe.
The incinerator is further characterized in that protective plates are arranged outside the furnace walls at the front arch and the rear arch of the incinerator respectively, and the upper layer air secondary air pipe and the lower layer flue gas secondary air pipe are fixed on the protective plates;
The upper air secondary air pipe is horizontally arranged or obliquely arranged downwards, and the included angle between the upper air secondary air pipe and the horizontal plane is 0-25 degrees;
The lower layer flue gas secondary air pipe is horizontally arranged or obliquely arranged downwards, and the included angle between the lower layer flue gas secondary air pipe and the horizontal plane is 0-30 degrees.
After the invention is adopted, the upper layer and the lower layer of secondary air are arranged, the upper layer adopts secondary air of air, the lower layer adopts secondary air of flue gas, the proportion of the secondary air of air and the secondary air of flue gas can be adjusted in real time according to the temperature of the flue gas at the outlet of the incinerator, so that the temperature of the flue gas can be operated in a reasonable range, the generation of NOx is effectively inhibited, and the original emission of the NOx is ensured in a reasonable range.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
As shown in figure 1, a grate waste incinerator's overgrate air arrangement structure, it is including burning furnace 1, the preceding department of encircleing of burning furnace 1 is provided with preceding upper air secondary air pipe 2 and preceding wall lower floor flue gas secondary air pipe 3, the department of encircleing is provided with back upper air secondary air pipe 4 and back wall lower floor flue gas secondary air pipe 5 on the back, let in the air overgrate air in preceding upper air secondary air pipe 2 and the back wall upper air secondary air pipe 4, let in the flue gas overgrate air in preceding wall lower floor flue gas secondary air pipe 3 and the back wall lower floor flue gas secondary air pipe 5.
The external portion of the furnace wall of the front arch and the rear arch of the incinerator 1 is provided with a front guard plate and a rear guard plate respectively, a front wall upper layer air secondary air pipe 2 and a front wall lower layer flue gas secondary air pipe 3 are fixed on the front guard plate, and a rear wall upper layer air secondary air pipe 4 and a rear wall lower layer flue gas secondary air pipe 5 are fixed on the rear guard plate.
The front wall upper air secondary air pipe 2 and the back wall upper air secondary air pipe 4 are horizontally arranged or obliquely arranged downwards, the included angle between the front wall upper air secondary air pipe and the horizontal plane is 0-25 degrees, and the front wall upper air secondary air pipe and the back wall upper air secondary air pipe are horizontally arranged in the embodiment.
The front wall lower layer flue gas secondary air pipe 3 and the rear wall lower layer flue gas secondary air pipe 5 are horizontally arranged or obliquely arranged downwards, the included angle between the front wall lower layer flue gas secondary air pipe and the horizontal plane is 0-30 degrees, the front wall lower layer flue gas secondary air pipe and the horizontal plane are obliquely arranged downwards, and flue gas secondary air can enter more quickly.
In the figure, 6 is a feed hopper, 7 is a grate and 8 is a slag discharge port.
Claims (4)
1. a secondary air arrangement structure of a grate garbage incinerator comprises the incinerator and is characterized in that an upper layer air secondary air pipe and a lower layer smoke secondary air pipe are arranged at the front arch and the rear arch of the incinerator respectively, air secondary air is introduced into the upper layer air secondary air pipe, and smoke secondary air is introduced into the lower layer smoke secondary air pipe.
2. The secondary air arrangement structure of a grate stoker garbage incinerator according to claim 1, wherein said furnace walls at the front arch and the rear arch of said incinerator are provided with guard plates at the outer portions thereof, respectively, and said upper air secondary duct and said lower flue gas secondary duct are fixed to said guard plates.
3. The secondary air arrangement structure of a grate stoker garbage incinerator according to claim 1, wherein said upper air secondary duct is arranged horizontally or inclined downwardly with an angle of 0-25 ° to the horizontal.
4. The secondary air arrangement structure of a grate stoker garbage incinerator according to claim 1, wherein said lower flue gas secondary air pipe is arranged horizontally or inclined downward, and the included angle with the horizontal plane is 0-30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910943078.XA CN110566979A (en) | 2019-09-30 | 2019-09-30 | Secondary air arrangement structure of grate waste incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910943078.XA CN110566979A (en) | 2019-09-30 | 2019-09-30 | Secondary air arrangement structure of grate waste incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110566979A true CN110566979A (en) | 2019-12-13 |
Family
ID=68783845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910943078.XA Withdrawn CN110566979A (en) | 2019-09-30 | 2019-09-30 | Secondary air arrangement structure of grate waste incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110566979A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609395A (en) * | 2020-06-18 | 2020-09-01 | 临沂木子原热能科技有限公司 | Biomass boiler and method for supplying heat by using biomass combustion |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776015A (en) * | 2014-02-26 | 2014-05-07 | 章礼道 | Semi-tower three-flue double-damper added jet flow flue gas recirculation secondary reheating power station boiler |
| CN105222138A (en) * | 2015-10-20 | 2016-01-06 | 浙江伟明环保股份有限公司 | A kind of garbage burning boiler secondary air system and Secondary Air operation 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 |
| CN206755183U (en) * | 2017-04-06 | 2017-12-15 | 广州环保投资集团有限公司 | Waste incinerator is without rear arch following current equipment |
| CN108800157A (en) * | 2018-04-26 | 2018-11-13 | 光大环保技术研究院（南京）有限公司 | A kind of air distribution device and waste incinerator of flue gas |
| CN109764337A (en) * | 2019-03-07 | 2019-05-17 | 中国华能集团清洁能源技术研究院有限公司 | A kind of grate furnace and grate furnace cleaning burning process based on flue gas recirculation system |
| CN210832024U (en) * | 2019-09-30 | 2020-06-23 | 无锡华光锅炉股份有限公司 | Secondary air arrangement structure of grate garbage incinerator |
-
2019
- 2019-09-30 CN CN201910943078.XA patent/CN110566979A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776015A (en) * | 2014-02-26 | 2014-05-07 | 章礼道 | Semi-tower three-flue double-damper added jet flow flue gas recirculation secondary reheating power station boiler |
| CN105222138A (en) * | 2015-10-20 | 2016-01-06 | 浙江伟明环保股份有限公司 | A kind of garbage burning boiler secondary air system and Secondary Air operation 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 |
| CN206755183U (en) * | 2017-04-06 | 2017-12-15 | 广州环保投资集团有限公司 | Waste incinerator is without rear arch following current equipment |
| CN108800157A (en) * | 2018-04-26 | 2018-11-13 | 光大环保技术研究院（南京）有限公司 | A kind of air distribution device and waste incinerator of flue gas |
| CN109764337A (en) * | 2019-03-07 | 2019-05-17 | 中国华能集团清洁能源技术研究院有限公司 | A kind of grate furnace and grate furnace cleaning burning process based on flue gas recirculation system |
| CN210832024U (en) * | 2019-09-30 | 2020-06-23 | 无锡华光锅炉股份有限公司 | Secondary air arrangement structure of grate garbage incinerator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609395A (en) * | 2020-06-18 | 2020-09-01 | 临沂木子原热能科技有限公司 | Biomass boiler and method for supplying heat by using biomass combustion |
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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 |
Application publication date: 20191213 |
|
| WW01 | Invention patent application withdrawn after publication |