CN207729585U - A kind of wear-resisting steady flame tooth reamer of vortex burner discrete type - Google Patents
A kind of wear-resisting steady flame tooth reamer of vortex burner discrete type Download PDFInfo
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- CN207729585U CN207729585U CN201721782965.6U CN201721782965U CN207729585U CN 207729585 U CN207729585 U CN 207729585U CN 201721782965 U CN201721782965 U CN 201721782965U CN 207729585 U CN207729585 U CN 207729585U
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- China
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- wear
- steady flame
- reamer
- fanning strip
- flame tooth
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Abstract
The utility model discloses a kind of wear-resisting steady flame tooth reamers of vortex burner discrete type, which is characterized in that is mutually put together by multiple fanning strips, has gap between adjacent fanning strip, shape, the size of each fanning strip are consistent；Each fanning strip include reamer portion and with the integrally formed steady flame tooth in reamer portion；The material of the fanning strip is silicon carbide.The wear-resisting steady flame tooth reamer of this practicality vortex burner discrete type, steady flame tooth and reamer portion pour into an integrated entity to form fanning strip, it ensure that steady flame tooth reamer fine quality, wear-resisting, corrosion-resistant, high temperature resistant, thermal shock resistance are strong, it is simple and reasonable, it is easy to install, extend service life, there is gap between every, solves the thermal expansion problem of boiler in normal operation；Temperature more high intensity is bigger in a certain range, and normal table can work under 1200 DEG C of hot environment, has stronger wear-resistant strength, improves the stability of boiler combustion.
Description
Technical field
The utility model is related to fields such as boiler casting, specially a kind of wear-resisting steady flame tooth of vortex burner discrete type expands
Cone.
Background technology
The steady flame tooth reamer of traditional vortex burner is the structure using cast steel, and reamer and steady flame tooth manufacture respectively.Expand
Bore main function：It is First air diffusion, recirculating zone is promoted to generate.The steady flame tooth reamer of traditional vortex burner there are as follows
Defect.
1. the reamer of cast steel and steady flame tooth it is not wear-resisting, intolerant to burn into non-refractory, service life is short, and blowing out is needed to replace, and makes
At prodigious economic loss.
2. cast steel reamer and steady flame tooth are fragile in boiler running process, reamer and steady flame tooth fall off frequent occurrence, shadow
The normal operation for ringing hearth combustion, leads to the stability of coal dust jet stream and the efficiency of burning.
3. all there are ovality problem, reamer and steady flame teeth to coincide well for cast steel reamer and steady flame tooth, so that
Size is unable to reach matching requirements after shop assembled.
4. since First air reamer material is steel-casting, though there is higher elevated temperature strength and inoxidizability, to sulfur-bearing
Element is sensitive, has brittle tendency at 600-800 DEG C, the toughness of material and plasticity is made drastically to decline, influence its service life.
5. since center reamer is located at burner outlet end, working environment is complicated, it is severe, by radiation of burner hearth, convection current
Etc. heat transfers, while continuously being impacted by the high speed of breeze airflow (20-30m/s) again, not only burnt but also ground not only.Especially
When burner throws oil drop fire, reamer temperature may be at 900 DEG C or more.Center reamer works at high operating temperatures, and surface generates
Oxidation film is formed on surface while plastic deformation, coal dust high speed is continuous to hit, and spalling of oxide film makes the metal watch newly spilt
Face is reoxidized, is removed, and forms oxidative wear.Oxidative wear degree depends on the property and oxidation film and metal of deoxidation film
The binding ability of matrix, while it being also dependent upon metal surface plastic deformation resistance, these depend on the property of metal material at all again
Can, refer mainly to its degree of brittleness, if metal surface formed oxidation film densification without crisp, the metal High-temperature-resandant andant wear-resistant energy
Power can be very strong.
Utility model content
The purpose of this utility model is：A kind of wear-resisting steady flame tooth reamer of vortex burner discrete type is provided, has been solved existing
There is at least one of technology technological deficiency.
Realizing the technical solution of above-mentioned purpose is：A kind of wear-resisting steady flame tooth reamer of vortex burner discrete type, by multiple
Fanning strip is mutually put together, and has gap between adjacent fanning strip, and shape, the size of each fanning strip are consistent；Each fan
Shape piece include reamer portion and with the integrally formed steady flame tooth in reamer portion.
In one preferred embodiment of the utility model, the interstice coverage is in 2mm-5mm.
In one preferred embodiment of the utility model, the fanning strip is equipped with 4, and the covering of the fan radian of the fanning strip is
90°。
In one preferred embodiment of the utility model, the fanning strip is equipped with 6, and the covering of the fan radian of the fanning strip is
60°。
In one preferred embodiment of the utility model, the fanning strip is equipped with 12, the covering of the fan radian of the fanning strip
It is 30 °.
The utility model has the advantages that：The wear-resisting steady flame tooth reamer of this practicality vortex burner discrete type, steady flame tooth and expansion
Tapering pours into an integrated entity to form fanning strip, the heat treatment of the wear-resisting steady combustion tooth reamer of discrete type, the control of heating rate, when room temperature liter
It should be slowly heated to 850 DEG C, the crystallization water for keeping it internal excludes to come, and recrystallizes, so wear-resisting steady flame tooth reamer of silicon carbide is not
It can crack, ensure that steady flame tooth reamer fine quality, wear-resisting, corrosion-resistant, high temperature resistant, thermal shock resistance are strong, simple and reasonable, easily
Installation, extends service life, has gap between every, solve the thermal expansion problem of boiler in normal operation；One
It is bigger to determine temperature more high intensity in range, and normal table can work under 1200 DEG C of hot environment, has stronger wear-resisting
Intensity improves the stability of boiler combustion.
Description of the drawings
The utility model is further explained with reference to the accompanying drawings and examples.
Fig. 1 is the wear-resisting steady flame tooth reamer structure chart of the vortex burner discrete type of the utility model embodiment 1.
Fig. 2 is the wear-resisting steady flame tooth reamer structure chart of the vortex burner discrete type of the utility model embodiment 2.
Fig. 3 is the wear-resisting steady flame tooth reamer structure chart of the vortex burner discrete type of the utility model embodiment 3.
Wherein,
1 fanning strip；11 reamer portions；
12 steady flame teeth；2 gaps.
Specific implementation mode
Embodiment 1：As shown in Figure 1, a kind of wear-resisting steady flame tooth reamer of vortex burner discrete type, by 41 phases of fanning strip
It is mutually put together, has gap 2 between adjacent fanning strip 1, in the present embodiment, gap 2 is 5mm.The shape of each fanning strip 1
Shape, size are consistent；The covering of the fan radian of the fanning strip 1 is 90 °.Each fanning strip 1 include reamer portion 11 and with reamer portion 11 1
Body formed steady flame tooth 12.
Embodiment 2, as shown in Fig. 2, the present embodiment is with embodiment 1, difference lies in vortex burner discrete type is wear-resisting
Steady flame tooth reamer, is mutually put together by 6 fanning strips 1, has gap 2 between adjacent fanning strip 1, in the present embodiment,
Gap 2 is 3mm.The covering of the fan radian of the fanning strip 1 is 60 °.
Embodiment 3：As shown in figure 3, the present embodiment is with embodiment 1, difference lies in vortex burner discrete type is wear-resisting
Steady flame tooth reamer, is mutually put together by 12 fanning strips 1, has gap 2 between adjacent fanning strip 1, in the present embodiment,
Gap 2 is 2mm.The covering of the fan radian of the fanning strip 1 is 30 °.
Its production method is as follows：
Mold Making, structure fabrication mold, core model according to fanning strip 1.
Mold is assembled, after the completion of Mold Making, mold is assembled and is fixed.
Fanning strip 1 is poured into a mould, a certain proportion of water, which is added, in ready silicon carbide castable is stirred, by certain
Mixing time and the flow condition for observing slurry, and the wear-resisting steady combustion tooth reamer of discrete type is proceeded by large-scale shock platforms
Cast is carried out by the way of being shaken in cast, the bubble in casting process is made more to overflow as early as possible, until fanning strip 1
Upper surface have slurries appearance, surfacing is smooth, stop vibrations.
Demoulding after the completion of pouring into a mould fanning strip 1, carries out maintenance in 48 hours, after being fully cured, form removal obtains fanning strip 1.
Fanning strip 1 is heat-treated, and will be poured the silicon carbide fanning strip 1 being poured in and is put into high-temperature heater, according to heating curve, is delayed
Slow heating, until being raised to 850 DEG C, then slow cooling is until room temperature.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
All any modification, equivalent and improvement etc., should be included in the guarantor of the utility model made by within novel spirit and principle
Within the scope of shield.
Claims (5)
1. a kind of wear-resisting steady flame tooth reamer of vortex burner discrete type, which is characterized in that by the mutual split of multiple fanning strips
At having gap between adjacent fanning strip, shape, the size of each fanning strip are consistent；Each fanning strip include reamer portion and
With the integrally formed steady flame tooth in reamer portion；The material of the fanning strip is silicon carbide.
2. the wear-resisting steady flame tooth reamer of vortex burner discrete type according to claim 1, which is characterized in that the gap
Range is in 2mm-5mm.
3. the wear-resisting steady flame tooth reamer of vortex burner discrete type according to claim 1, which is characterized in that the sector
Piece is equipped with 4, and the covering of the fan radian of the fanning strip is 90 °.
4. the wear-resisting steady flame tooth reamer of vortex burner discrete type according to claim 1, which is characterized in that the sector
Piece is equipped with 6, and the covering of the fan radian of the fanning strip is 60 °.
5. the wear-resisting steady flame tooth reamer of vortex burner discrete type according to claim 1, which is characterized in that the sector
Piece is equipped with 12, and the covering of the fan radian of the fanning strip is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721782965.6U CN207729585U (en) | 2017-12-19 | 2017-12-19 | A kind of wear-resisting steady flame tooth reamer of vortex burner discrete type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721782965.6U CN207729585U (en) | 2017-12-19 | 2017-12-19 | A kind of wear-resisting steady flame tooth reamer of vortex burner discrete type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207729585U true CN207729585U (en) | 2018-08-14 |
Family
ID=63097655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721782965.6U Active CN207729585U (en) | 2017-12-19 | 2017-12-19 | A kind of wear-resisting steady flame tooth reamer of vortex burner discrete type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207729585U (en) |
-
2017
- 2017-12-19 CN CN201721782965.6U patent/CN207729585U/en active Active
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