CN107859996A - Abrasionproof coal nozzle - Google Patents
Abrasionproof coal nozzle Download PDFInfo
- Publication number
- CN107859996A CN107859996A CN201710999625.7A CN201710999625A CN107859996A CN 107859996 A CN107859996 A CN 107859996A CN 201710999625 A CN201710999625 A CN 201710999625A CN 107859996 A CN107859996 A CN 107859996A
- Authority
- CN
- China
- Prior art keywords
- demarcation strip
- dividing plate
- nozzle body
- abrasionproof
- head end
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a kind of abrasionproof coal nozzle, include nozzle body, the nozzle body is provided with least one demarcation strip from top to bottom, the both sides of the demarcation strip are fixedly connected with the nozzle body upper side wall, the tail end of the demarcation strip is close to the nozzle body entrance, the head end of the demarcation strip is located at the exit of the nozzle body, and the head end of the demarcation strip is provided with U-shaped anti-wearing ceramic；By the U-shaped anti-wearing ceramic that nozzle body is set in the head end of demarcation strip, reduce equipment and be that high temperature and the high Growth spurt of high concentration pulverized coal air-flow wash away lower received abrasion, reach the purpose of the production safety of the abrasion for reducing equipment, the service life of extension device, the input cost of reduction power plant and guarantee power plant.
Description
Technical field
The present invention relates to coal powder burning technology field, and in particular to abrasionproof coal nozzle.
Background technology
In the prior art, coal nozzle is the core component of power station boiler burner, because use environment is in high temperature
Washed away with the high Growth spurt of high concentration pulverized coal air-flow, therefore the structure generally existing abrasion in the coal nozzle that power plant uses at present is tight
Reconstructed image, cause nozzle that due to abrasion deformation and scaling loss, economic loss and safety often are brought to power plant.
The content of the invention
In order to solve the above technical problems, the present invention proposes abrasionproof coal nozzle, to reach the abrasion for reducing equipment, extension
The purpose of the production safety of the service life of equipment, the input cost for reducing power plant and guarantee power plant.
To reach above-mentioned purpose, technical scheme is as follows：
A kind of abrasionproof coal nozzle, includes nozzle body, and the nozzle body is provided with least one demarcation strip, institute from top to bottom
The both sides for stating demarcation strip are fixedly connected with the nozzle body upper side wall, and the tail end of the demarcation strip is close to the nozzle sheet
Body entrance, the head end of the demarcation strip are located at the exit of the nozzle body, and the head end of the demarcation strip is provided with U-shaped abrasionproof
Ceramics.
The present invention by demarcation strip head end set nozzle body U-shaped anti-wearing ceramic, reduce equipment be high temperature and
The high Growth spurt of high concentration pulverized coal air-flow washes away lower received abrasion, reaches the abrasion for reducing equipment, the use longevity of extension device
The purpose of the production safety of life, the input cost for reducing power plant and guarantee power plant.
As preferable, the demarcation strip is bluff-body type dividing plate, and the windward side solderless contact of the bluff-body type dividing plate is described
U-shaped anti-wearing ceramic dovetail groove snap is fixed on the head end of the bluff-body type dividing plate.
As preferable, the demarcation strip is horizontal dividing plate, and the U-shaped anti-wearing ceramic is fixedly installed on the horizontal
The head end of dividing plate, and the upper surface of the U-shaped anti-wearing ceramic and horizontal dividing plate is fixed, and the U-shaped anti-wearing ceramic and level
Gap be present between formula dividing plate.By the way that bluff-body type dividing plate or horizontal dividing plate are arranged in nozzle body, realize that demarcation strip selects
The variation selected, it is easy to the use of varying environment, while gap is provided between horizontal dividing plate and U-shaped anti-wearing ceramic, avoids U-shaped
Anti-wearing ceramic is by thermal breakage.
As preferable, the windward side of the bluff-body type dividing plate carries out abrasionproof processing using pasted with ceramic veneer piece.
As preferable, abrasionproof processing is carried out using pasted with ceramic veneer piece at the bearing rib of the horizontal dividing plate.Pass through
By the windward side of bluff-body type dividing plate（The bearing rib of horizontal dividing plate）Abrasionproof processing is carried out using pasted with ceramic veneer piece, further protected
Demonstrate,prove the use quality of nozzle body.
As preferable, the nozzle body is made of high chrome high-nickel antiwear heat resisting cast steel.It is wear-resisting using high chrome high-nickel
Heat resisting cast steel manufactures nozzle body, adds the service life of nozzle body, improves the reliability of equipment.
The invention has the advantages that：
1. the present invention reduces equipment and is high temperature and height by the U-shaped anti-wearing ceramic of the head end setting nozzle body in demarcation strip
The high Growth spurt of concentration breeze airflow washes away lower received abrasion, reach reduce the abrasion of equipment, extension device service life,
The purpose of the input cost for reducing power plant and the production safety for ensureing power plant.
2. the present invention realizes demarcation strip selection by the way that bluff-body type dividing plate or horizontal dividing plate are arranged in nozzle body
Variation, it is easy to the use of varying environment.
3. the present invention is by by the windward side of bluff-body type dividing plate（The bearing rib of horizontal dividing plate）Using pasted with ceramic veneer piece
Abrasionproof processing is carried out, is further ensured that the use quality of nozzle body.
4. the present invention manufactures nozzle body by using high chrome high-nickel antiwear heat resisting cast steel, the use of nozzle body is added
In the life-span, improve the reliability of equipment.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described.
Fig. 1 is the schematic cross-sectional view of abrasionproof coal nozzle disclosed in the embodiment of the present invention one；
Fig. 2 is the schematic cross-sectional view of abrasionproof coal nozzle disclosed in the embodiment of the present invention two；
Corresponding component title of the numeral represented by with letter in figure：
1. the horizontal dividing plate of 31. bluff-body type dividing plate of nozzle body 2.U types anti-wearing ceramic 32..
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.
The invention provides abrasionproof coal nozzle, its operation principle is to set nozzle body by the head end in demarcation strip
U-shaped anti-wearing ceramic, reduce equipment and be that high temperature and the high Growth spurt of high concentration pulverized coal air-flow wash away lower received abrasion, reach drop
The abrasion of low equipment, the service life of extension device, reduce power plant input cost and ensure power plant production safety purpose.
With reference to embodiment and embodiment, the present invention is further detailed explanation.
Embodiment one：
As shown in figure 1, a kind of abrasionproof coal nozzle, includes nozzle body 1, the nozzle body is provided with least one from top to bottom
Individual demarcation strip, the both sides of the demarcation strip are fixedly connected with the nozzle body upper side wall, and the tail end of the demarcation strip leans on
The nearly nozzle body entrance, the head end of the demarcation strip are located at the exit of the nozzle body, the head of the demarcation strip
End is provided with U-shaped anti-wearing ceramic 2.
The present invention by demarcation strip head end set nozzle body U-shaped anti-wearing ceramic, reduce equipment be high temperature and
The high Growth spurt of high concentration pulverized coal air-flow washes away lower received abrasion, reaches the abrasion for reducing equipment, the use longevity of extension device
The purpose of the production safety of life, the input cost for reducing power plant and guarantee power plant.
It is worth noting that, the demarcation strip is bluff-body type dividing plate 31, the windward side solderless contact of the bluff-body type dividing plate,
The U-shaped anti-wearing ceramic dovetail groove snap is fixed on the head end of the bluff-body type dividing plate.
It is worth noting that, the windward side of the bluff-body type dividing plate carries out abrasionproof processing using pasted with ceramic veneer piece.Passing through will
The windward side of bluff-body type dividing plate carries out abrasionproof processing using pasted with ceramic veneer piece, is further ensured that the use quality of nozzle body.
It is worth noting that, the nozzle body is made of high chrome high-nickel antiwear heat resisting cast steel.It is resistance to using high chrome high-nickel
Heat resisting cast steel manufacture nozzle body is ground, adds the service life of nozzle body, improves the reliability of equipment.
Embodiment two：
A kind of abrasionproof coal nozzle, including nozzle body 1, the nozzle body is provided with least one demarcation strip from top to bottom,
The both sides of the demarcation strip are fixedly connected with the nozzle body upper side wall, and the tail end of the demarcation strip is close to the nozzle
Body entrance, the head end of the demarcation strip are located at the exit of the nozzle body, and the head end of the demarcation strip is provided with U-shaped anti-
Mill ceramics.
The present invention by demarcation strip head end set nozzle body U-shaped anti-wearing ceramic 2, reduce equipment be high temperature and
The high Growth spurt of high concentration pulverized coal air-flow washes away lower received abrasion, reaches the abrasion for reducing equipment, the use longevity of extension device
The purpose of the production safety of life, the input cost for reducing power plant and guarantee power plant.
It is worth noting that, the demarcation strip is horizontal dividing plate 32, the U-shaped anti-wearing ceramic is fixedly installed on the water
The head end of flat dividing plate, and the upper surface of the U-shaped anti-wearing ceramic and horizontal dividing plate is fixed, and the U-shaped anti-wearing ceramic and
Gap be present between horizontal dividing plate.Gap is provided between horizontal dividing plate and U-shaped anti-wearing ceramic, avoid U-shaped anti-wearing ceramic by
Thermal breakage.
It is worth noting that, abrasionproof processing is carried out using pasted with ceramic veneer piece at the bearing rib of the horizontal dividing plate.It is logical
Cross and the bearing rib of horizontal dividing plate is subjected to abrasionproof processing using pasted with ceramic veneer piece, be further ensured that the use matter of nozzle body
Amount.
It is worth noting that, the nozzle body is made of high chrome high-nickel antiwear heat resisting cast steel.It is resistance to using high chrome high-nickel
Heat resisting cast steel manufacture nozzle body is ground, adds the service life of nozzle body, improves the reliability of equipment.
The specifically used step of the present invention is as follows：Again as shown in figure 1, during the use of reality, coal dust is from nozzle sheet
During being sprayed in body 1, by bluff-body type dividing plate 31（Horizontal dividing plate 32）Head end U-shaped anti-wearing ceramic 2 is set, reduce
Under high temperature and the high Growth spurt of high concentration pulverized coal air-flow wash away, abrasion that equipment is received.
By way of more than, abrasionproof coal nozzle provided by the present invention, nozzle is set by the head end in demarcation strip
The U-shaped anti-wearing ceramic of body, reduce equipment and be that high temperature and the high Growth spurt of high concentration pulverized coal air-flow wash away lower received abrasion,
Reach the production safety of the abrasion for reducing equipment, the service life of extension device, the input cost of reduction power plant and guarantee power plant
Purpose.
Above-described is only the preferred embodiment of abrasionproof coal nozzle disclosed in this invention, it is noted that for
For one of ordinary skill in the art, without departing from the concept of the premise of the invention, can also make it is some deformation and
Improve, these belong to protection scope of the present invention.
Claims (6)
1. a kind of abrasionproof coal nozzle, it is characterised in that include nozzle body, the nozzle body is provided with least from top to bottom
One demarcation strip, the both sides of the demarcation strip are fixedly connected with the nozzle body upper side wall, the tail end of the demarcation strip
Close to the nozzle body entrance, the head end of the demarcation strip is located at the exit of the nozzle body, the demarcation strip
Head end is provided with U-shaped anti-wearing ceramic.
2. abrasionproof coal nozzle according to claim 1, it is characterised in that the demarcation strip is bluff-body type dividing plate, described
The windward side solderless contact of bluff-body type dividing plate, the U-shaped anti-wearing ceramic dovetail groove snap are fixed on the bluff-body type dividing plate
Head end.
3. abrasionproof coal nozzle according to claim 1, it is characterised in that the demarcation strip is horizontal dividing plate, the U
Type anti-wearing ceramic is fixedly installed on the head end of the horizontal dividing plate, and the upper table of the U-shaped anti-wearing ceramic and horizontal dividing plate
Face is fixed, and gap be present between the U-shaped anti-wearing ceramic and horizontal dividing plate.
4. abrasionproof coal nozzle according to claim 2, it is characterised in that the windward side of the bluff-body type dividing plate is using viscous
Paste potsherd and carry out abrasionproof processing.
5. abrasionproof coal nozzle according to claim 3, it is characterised in that adopted at the bearing rib of the horizontal dividing plate
Abrasionproof processing is carried out with pasted with ceramic veneer piece.
6. abrasionproof coal nozzle according to claim 1, it is characterised in that the nozzle body is wear-resisting using high chrome high-nickel
Heat resisting cast steel is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710999625.7A CN107859996A (en) | 2017-10-24 | 2017-10-24 | Abrasionproof coal nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710999625.7A CN107859996A (en) | 2017-10-24 | 2017-10-24 | Abrasionproof coal nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107859996A true CN107859996A (en) | 2018-03-30 |
Family
ID=61696340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710999625.7A Pending CN107859996A (en) | 2017-10-24 | 2017-10-24 | Abrasionproof coal nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107859996A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128202A (en) * | 1994-07-14 | 1996-08-07 | 维尔内和普弗雷德尔公司 | Method for making spray nozzle plate with way of sandwitching middle layer between base body and cutting body |
| EP1135536A1 (en) * | 1998-11-10 | 2001-09-26 | Danieli & C. Officine Meccaniche SpA | Integrated device to inject technological gases and powdered material and method to use the device for the processing of baths of molten metal |
| CN203068504U (en) * | 2013-01-16 | 2013-07-17 | 江苏日升电力机械有限公司 | Durable nozzle of pulverized coal burner |
| CN205227307U (en) * | 2015-12-15 | 2016-05-11 | 包头市神邦新材料有限公司 | High temperature resistant, anti -oxidant buggy spout |
| CN205579551U (en) * | 2016-04-07 | 2016-09-14 | 江苏日升电力机械有限公司 | Be applied to combustion system's of thermal power factory pulverized coal burner nozzle |
-
2017
- 2017-10-24 CN CN201710999625.7A patent/CN107859996A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128202A (en) * | 1994-07-14 | 1996-08-07 | 维尔内和普弗雷德尔公司 | Method for making spray nozzle plate with way of sandwitching middle layer between base body and cutting body |
| EP1135536A1 (en) * | 1998-11-10 | 2001-09-26 | Danieli & C. Officine Meccaniche SpA | Integrated device to inject technological gases and powdered material and method to use the device for the processing of baths of molten metal |
| CN203068504U (en) * | 2013-01-16 | 2013-07-17 | 江苏日升电力机械有限公司 | Durable nozzle of pulverized coal burner |
| CN205227307U (en) * | 2015-12-15 | 2016-05-11 | 包头市神邦新材料有限公司 | High temperature resistant, anti -oxidant buggy spout |
| CN205579551U (en) * | 2016-04-07 | 2016-09-14 | 江苏日升电力机械有限公司 | Be applied to combustion system's of thermal power factory pulverized coal burner nozzle |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180330 |