CN112325291A - Incinerator fire grate segment and protection method thereof - Google Patents
Incinerator fire grate segment and protection method thereof Download PDFInfo
- Publication number
- CN112325291A CN112325291A CN202011184150.4A CN202011184150A CN112325291A CN 112325291 A CN112325291 A CN 112325291A CN 202011184150 A CN202011184150 A CN 202011184150A CN 112325291 A CN112325291 A CN 112325291A
- Authority
- CN
- China
- Prior art keywords
- grate segment
- incinerator
- fire grate
- nickel
- based material
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 24
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 238000000227 grinding Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Images
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
- F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates
-
- 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
- F23G5/24—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a vertical, substantially cylindrical, combustion chamber
- F23G5/28—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a vertical, substantially cylindrical, combustion chamber having raking arms
-
- 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
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
Abstract
The invention provides an incinerator fire grate segment and a protection method thereof, wherein the incinerator fire grate segment comprises a first part, a second part and a third part, the first part and the third part are connected to two ends of the second part, a nickel-based material coating is embedded in the outer surface of the first part, the end part of the second part is bent downwards to form a hook shape, and the third part is in an arc shape. The nickel-based material coating has the following functions: the grate segments are not easy to wear and damage, the garbage can be stably and fully combusted, and the frequency of replacing the grate segments is reduced as much as possible.
Description
Technical Field
The invention relates to the technical field of rice mills, in particular to an incinerator grate segment.
Background
The garbage incinerator is used for incinerating garbage, the garbage is burnt in the hearth to become waste gas, the waste gas enters the secondary combustion chamber, the waste gas is completely combusted under the forced combustion of the combustor, and then enters the spray type dust remover, and the waste gas is discharged into the atmosphere through a chimney after dust removal. The garbage incinerator consists of four systems, namely a garbage pretreatment system, an incineration system, a smoke biochemical dust removal system and a gas producer (auxiliary ignition incineration), and integrates automatic feeding, screening, drying, incineration, ash removal, dust removal and automatic control.
The garbage incinerator is a harmless treatment device which is commonly used for harmless treatment of medical and domestic wastes and animals. The principle is that the objects to be treated are incinerated and carbonized at high temperature by utilizing the combustion of fuels such as coal, fuel oil, fuel gas and the like so as to achieve the aim of disinfection treatment.
In order to ensure stable and sufficient combustion of the garbage, the garbage incinerator is internally provided with a reciprocating and stirring grate segment which continuously reciprocates in the garbage incinerator, and the end part of the grate segment bears severe high-temperature mechanical abrasion. After the operation for a period of time, the garbage is unstably and insufficiently combusted due to the abrasion and damage of the fire grate segments. Therefore, after the fire grate is damaged, the furnace can be stopped for maintenance, and the fire grate pieces can be replaced. The fire grate segment is mainly made of high-strength duplex stainless steel materials by casting, and is expensive.
Disclosure of Invention
In order to solve the problems, the invention aims to provide an incinerator fire grate segment, which can improve the hardness and the wear resistance of the easily worn position of the fire grate and prolong the service life of the incinerator fire grate segment by spraying and remelting a layer of nickel-based material on the easily worn position of the fire grate segment.
The embodiment of the invention adopts the technical scheme that:
in one aspect, the embodiment of the invention provides an incinerator fire grate segment, which comprises a first part, a second part and a third part, wherein the first part and the third part are connected to two ends of the second part, a nickel-based material coating is embedded on the outer surface of the first part, the end part of the second part is bent downwards to form a hook shape, and the third part is in a circular arc shape.
Compared with the traditional incinerator fire grate segment, in the embodiment of the invention, the nickel-based material coating is embedded in the outer surface of the first part of the fire grate segment, the nickel-based material has higher strength and certain comprehensive performances such as oxidation corrosion resistance and the like at a high temperature of 650-1000 ℃, the hardness and the wear resistance of the easily worn position of the fire grate can be improved, the service life of the fire grate segment is prolonged, in addition, the end part of the second part is bent downwards to be in a hook shape, the third part is in an arc shape, the full stirring of garbage is facilitated, the shell is not easily clamped, and therefore, the nickel-based material coating has the: the grate segments are not easy to wear and damage, the garbage can be stably and fully combusted, and the frequency of replacing the grate segments is reduced as much as possible. Therefore, the garbage incinerator is simple and reasonable in design, can save manpower, improves garbage combustion efficiency, and has excellent service performance.
Further, the device also comprises a trapezoidal fixing unit arranged at the bottom of the first part and the second part.
Further, the thickness of the coating is 1-2 mm.
Further, the first portion and the second portion are smoothly connected at their outer surfaces.
Further, the width of the first portion is 50-100 mm.
Further, the upper surface of the second part is a smooth plane.
Further, the width of the second portion is 150-300 mm.
Further, the width of the third portion is 50-100 mm.
Further, the height of the second portion and the third portion are both 180 to 500 mm.
In another aspect, an embodiment of the present invention further provides a protection method for an incinerator fire grate segment, where the incinerator fire grate segment includes a first portion, a second portion, and a third portion, and the method includes:
removing 1-2mm of stainless steel material from the surface of the first portion;
grinding the surface of the first part and the joint of the first part and the second part;
spray-welding and remelting a layer of nickel-based material with the thickness of 1-2mm on the first part;
and grinding the surface of the first part and the joint of the first part and the second part.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic view of a grate segment according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a flowchart of a protection method of a fire grate segment according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
The embodiments of the present invention will be further explained with reference to the drawings.
As shown in fig. 1, fig. 1 is a schematic view of a fire grate segment according to an embodiment of the present invention.
Referring to fig. 1, the incinerator fire grate segment comprises a first part 100, a second part 110 and a third part 120, wherein the first part 100 and the third part 120 are connected to two ends of the second part 110, a nickel-based material coating 101 is embedded on the outer surface of the first part 100, the end of the second part 110 is bent downwards to form a hook shape, and the third part 120 is in an arc shape.
Compared with the traditional incinerator fire grate segment, in the embodiment of the invention, the nickel-based material coating 101 is embedded in the outer surface of the first part 100 of the fire grate segment, the nickel-based material has high strength and certain comprehensive performances such as oxidation corrosion resistance at a high temperature of 650-1000 ℃, the hardness and the wear resistance of the easily worn position of the fire grate segment can be improved, the service life of the fire grate segment is prolonged, in addition, the end part of the second part 110 is bent downwards to be in a hook shape, the third part 120 is in an arc shape, the garbage can be fully stirred, the shell is not easily clamped, and therefore, the nickel-based material coating 101 has the functions of: the grate segments are not easy to wear and damage, the garbage can be stably and fully combusted, and the frequency of replacing the grate segments is reduced as much as possible. Therefore, the garbage incinerator is simple and reasonable in design, can save manpower, improves garbage combustion efficiency, and has excellent service performance.
In one embodiment of the present invention, a trapezoidal fixing unit 130 is further included at the bottom of the first and second portions 100 and 110, and the inclined side is advantageous to reduce friction between the grate segments and the garbage.
In one embodiment of the invention, the thickness of the coating is 1-2 mm.
In one embodiment of the present invention, the outer surfaces of the first portion 100 and the second portion 110 are smoothly connected, and the smooth surface is beneficial to reducing friction and improving stirring efficiency.
As shown in fig. 2, fig. 2 is a top view of fig. 1.
Referring to fig. 2, in one embodiment of the present invention, the width of the first portion 100 is 50-100 mm.
In one embodiment of the present invention, the upper surface of the second portion 110 is a smooth surface, which is beneficial to reduce friction and improve stirring efficiency.
In one embodiment of the invention, the width of the second portion 110 is 150-300 mm.
In one embodiment of the invention, the width of the third portion 120 is 50-100 mm.
In one embodiment of the invention, the second portion 110 and the third portion 120 each have a height of 180 to 500 mm.
As shown in fig. 3, fig. 3 is a flowchart of a protection method of a fire grate segment according to an embodiment of the present invention.
Referring to fig. 3, in another aspect, an embodiment of the present invention further provides a method for protecting an incinerator fire grate segment, which is applied to the incinerator fire grate segment, the incinerator fire grate segment includes a first portion, a second portion and a third portion, the first portion and the third portion are connected to both ends of the second portion, a nickel-based material coating is embedded in an outer surface of the first portion, an end of the second portion is bent downward to form a hook shape, and the third portion is in a circular arc shape, the method includes:
s100, removing materials of about 1-2mm from the surface of the first part;
s200, polishing the surface of the first part and the joint thereof;
s300, spray-welding and remelting a layer of nickel-based material with the thickness of 1-2mm on the first part;
s400, grinding the surface of the first part and the joint of the first part.
Compared with the traditional incinerator fire grate segment, in the embodiment of the invention, the nickel-based material coating 101 is embedded in the outer surface of the first part 100 of the fire grate segment, the nickel-based material has high strength and certain comprehensive performance such as oxidation corrosion resistance at a high temperature of 650-1000 ℃, the hardness and the wear resistance of the easily worn position of the fire grate can be improved, the service life of the fire grate segment is prolonged, in addition, the end part of the second part 110 is bent downwards to be in a hook shape, the third part 120 is in an arc shape, the full stirring of garbage is facilitated, the shell is not easily clamped, and therefore, the nickel-based material coating 101 has the following functions: the grate segments are not easy to wear and damage, the garbage can be stably and fully combusted, and the frequency of replacing the grate segments is reduced as much as possible. Therefore, the garbage incinerator is simple and reasonable in design, can save manpower, improves garbage combustion efficiency, and has excellent service performance.
While the preferred embodiments and basic principles of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments, but is intended to cover various modifications, equivalents and alternatives falling within the scope of the invention as claimed.
Claims (10)
1. The incinerator fire grate segment is characterized by comprising a first part, a second part and a third part, wherein the first part and the third part are connected to two ends of the second part, a nickel-based material coating is embedded on the outer surface of the first part, the end part of the second part is bent downwards to form a hook shape, and the third part is in an arc shape.
2. An incinerator grate segment as claimed in claim 1 wherein: the ladder-shaped fixing unit is arranged at the bottom of the first part and the second part.
3. An incinerator grate segment as claimed in claim 1 wherein: the thickness of the coating is 1-2 mm.
4. An incinerator grate segment as claimed in claim 1 wherein: the first portion and the second portion are smoothly connected at their outer surfaces.
5. An incinerator grate segment as claimed in claim 1 wherein: the width of the first part is 50-100 mm.
6. An incinerator grate segment as claimed in claim 4 wherein: the upper surface of the second part is a smooth plane.
7. An incinerator grate segment as claimed in claim 1 wherein: the width of the second portion is 150-300 mm.
8. An incinerator grate segment as claimed in claim 1 wherein: the width of the third part is 50-100 mm.
9. An incinerator grate segment as claimed in claim 1 wherein: the first, second and third portions each have a height of 180 to 500 mm.
10. A protection method of an incinerator fire grate segment is applied to the incinerator fire grate segment, the incinerator fire grate segment comprises a first part, a second part and a third part, the first part and the third part are connected to two ends of the second part, a nickel-based material coating is embedded in the outer surface of the first part, the end of the second part is bent downwards to form a hook shape, and the third part is in an arc shape, and the protection method is characterized by comprising the following steps of:
removing 1-2mm of stainless steel material from the surface of the first portion;
grinding the surface of the first part and the joint of the first part and the second part;
spray-welding and remelting a layer of nickel-based material with the thickness of 1-2mm on the first part;
and grinding the surface of the first part and the joint of the first part and the second part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011184150.4A CN112325291A (en) | 2020-10-29 | 2020-10-29 | Incinerator fire grate segment and protection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011184150.4A CN112325291A (en) | 2020-10-29 | 2020-10-29 | Incinerator fire grate segment and protection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112325291A true CN112325291A (en) | 2021-02-05 |
Family
ID=74297356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011184150.4A Pending CN112325291A (en) | 2020-10-29 | 2020-10-29 | Incinerator fire grate segment and protection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112325291A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH074634A (en) * | 1993-06-17 | 1995-01-10 | Hitachi Zosen Corp | Fire grate of refuse incinerator |
| US20060213405A1 (en) * | 2005-03-22 | 2006-09-28 | Alstom Technology Ltd. | Grate covering |
| CN202675306U (en) * | 2012-04-01 | 2013-01-16 | 光大环保科技发展（北京）有限公司 | Cope and drag combination dumping grate bar and rubbish incinerator |
| CN203068529U (en) * | 2012-10-22 | 2013-07-17 | 日立造船株式会社 | Fire grate |
| CN205606603U (en) * | 2016-03-15 | 2016-09-28 | 重庆金津科技有限公司 | Fire grate segment crucial wear -resisting resistant high temperature corrosion in position in combustion chamber scribbles layer structure |
| JP2017009193A (en) * | 2015-06-23 | 2017-01-12 | 日立造船株式会社 | Fire grate |
| CN209857076U (en) * | 2019-01-22 | 2019-12-27 | 光大环保技术研究院（南京）有限公司 | Air-cooled sliding grate segment of garbage incinerator |
-
2020
- 2020-10-29 CN CN202011184150.4A patent/CN112325291A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH074634A (en) * | 1993-06-17 | 1995-01-10 | Hitachi Zosen Corp | Fire grate of refuse incinerator |
| US20060213405A1 (en) * | 2005-03-22 | 2006-09-28 | Alstom Technology Ltd. | Grate covering |
| CN202675306U (en) * | 2012-04-01 | 2013-01-16 | 光大环保科技发展（北京）有限公司 | Cope and drag combination dumping grate bar and rubbish incinerator |
| CN203068529U (en) * | 2012-10-22 | 2013-07-17 | 日立造船株式会社 | Fire grate |
| JP2017009193A (en) * | 2015-06-23 | 2017-01-12 | 日立造船株式会社 | Fire grate |
| CN205606603U (en) * | 2016-03-15 | 2016-09-28 | 重庆金津科技有限公司 | Fire grate segment crucial wear -resisting resistant high temperature corrosion in position in combustion chamber scribbles layer structure |
| CN209857076U (en) * | 2019-01-22 | 2019-12-27 | 光大环保技术研究院（南京）有限公司 | Air-cooled sliding grate segment of garbage incinerator |
Non-Patent Citations (1)
| Title |
|---|
| 曲敬信，汪泓宏, 化学工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102022716A (en) | Vertical waste incineration boiler | |
| CN102607036B (en) | Multistage hydraulic mechanical garbage incinerator | |
| CN1163690C (en) | Anti-erosion system of grate in stocker type incinerator | |
| CN112325291A (en) | Incinerator fire grate segment and protection method thereof | |
| CN2568977Y (en) | Refuse incinerator with stepped horizontal reciprocating fire grate | |
| JP3794753B2 (en) | Stoker furnace for burning incinerated materials such as garbage | |
| CN200968776Y (en) | Multifunctional industry furnace | |
| CN210740413U (en) | Incineration grate furnace suitable for cement kiln handles domestic waste in coordination | |
| CN1280579C (en) | Interlinked comprehensive garbage incinerator | |
| CN213237549U (en) | Turning fire grate of garbage incinerator | |
| CN2477960Y (en) | Double rotary high temp garbage incinerator | |
| CN201903063U (en) | Vertical refuse incinerator | |
| CN201697134U (en) | Trimellitic anhydride residue treatment device | |
| CN215723230U (en) | Thermal plasma torch waste incineration treatment system | |
| CN2431486Y (en) | Heat feedback type continuous refuse incinerator | |
| CN218510919U (en) | Water-cooling fire grate segment for domestic garbage incineration | |
| CN211876043U (en) | Pit furnace chassis convenient to installation | |
| CN214840860U (en) | Air cooling grate segment of garbage incinerator | |
| CN2692500Y (en) | Reciprocating chain furnace | |
| CN214664459U (en) | Be applied to grate of msw incineration kiln | |
| CN113494712A (en) | Thermal plasma torch waste incineration treatment system | |
| JP2003097807A (en) | Structure of fire grate piece | |
| CN112555871A (en) | Incinerator grate device and high-calorific-value solid waste incinerator | |
| CN209909919U (en) | Integrated plasma grate furnace | |
| KR890000743Y1 (en) | Combustion stove |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210205 |