CN204958833U - High strength awl of ventilating - Google Patents
High strength awl of ventilating Download PDFInfo
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- CN204958833U CN204958833U CN201520753363.2U CN201520753363U CN204958833U CN 204958833 U CN204958833 U CN 204958833U CN 201520753363 U CN201520753363 U CN 201520753363U CN 204958833 U CN204958833 U CN 204958833U
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Abstract
The utility model provides a strengthening rib, a whole is formed through the high temperature direct fire to the close section of last micropore section of this sintered metal powder and upper and lower matter behind cold isostatic pressing, and the close conic section of matter welds with external metallic structure spare more as required that high strength awl of ventilating, whole appearance is the round platform form, inside cavity, upper and lower both ends opening, homogenizing wall thickness goes up in, three conic section angle is unanimous down, middle one section be sintered metal powder end cellular material, the outer wall have with sintered metal powder end micropore section an organic whole sinter molding. Still can this sintered metal powder end micropore section inner wall with one deck woven wire, stress that this high strength awl of ventilating had avoided the beading of the close section of sintered metal powder end micropore duan yuzhi to result in is uneven to be weakened with intensity, has improved the pressure -bearing of awl and resistant fatigue load's the ability of ventilating greatly, in case sintered metal powder end micropore section is damaged, its piece then can not get into inside pipeline and the nozzle of blocking of awl of ventilating, and then improves production efficiency, reduction in production cost has improved the operating stability who installs.
Description
Technical field
The utility model relates to a kind of high strength ventilation cone, and in gasification industry, carrying out pressurizeing and fluidisation to coal dust in the bottom for taper pulverized coal conveying device, prevents from blocking runner.
Background technology
At present, the ventilation cone that gasification industry adopts, its sintering metal powder micropore Duan Yuqi both sides close cone section of matter directly welds together, and there is no overall stiffening web and inner wire cloth, gas enters cone inside from ventilation cone outside by the capillary micropore of sintering metal poromerics inside, and when air filling cone replaces the inflation of change, deflation course, break because unbalanced stress will produce in welding bead position between micropore part and matter confidential paper, thus smash ventilation cone, broken sintering metal powder poromerics fragment falls into runner inside will make coal dust pipeline and spray nozzle clogging, plant failure is caused to run.
Summary of the invention
The utility model its special production technique and internal structure, improve the bearing capacity of the ventilation cone that coal gasification apparatus adopts and the ability of antifatigue load, reduce its breakage rate, and once after the breakage of sintering metal powder poromerics, its fragment also can not enter ventilation cone internal blocking pipeline and nozzle, and then enhance productivity, reduce production cost.
For achieving the above object, solution of the present utility model is:
A kind of high strength ventilation cone, it is characterized in that monnolithic case is round table-like, inner hollow, upper and lower both ends open, uniform wall thickness, on, in, lower three cone section angles are consistent, middle one section is sintering metal powder poromerics, it can be stainless steel, Hastelloy, Monel metal, Ni-based ultrafine powder, titanium or titanium alloy is powder sintered to be formed, outer wall has the stiffening web with sintering metal powder micropore section one sinter molding, wherein stiffening web is sintering metal powder poromerics, this sintering metal powder micropore section and upper, the close cone section of lower matter is after cold isostatic compaction, an entirety is sintered directly into by high temperature, the external hardware welding of matter close cone Duan Zaiyu as required.
In another embodiment, can also be designed on the basis of the above at this sintering metal powder micropore section inwall with layer of metal silk screen, wire cloth welds with close section of upper and lower matter, again with sintering metal powder micropore section after cold isostatic compaction, be sintered directly into an entirety by high temperature.
Accompanying drawing explanation
Fig. 1 is existing ventilation cone structure iron.
Fig. 2 is the utility model first embodiment;
Fig. 3 is the utility model second embodiment;
Fig. 4 is the stiffening web of the straight strip shape body of the utility model;
Fig. 5 is the stiffening web of the utility model ring strip shape body;
Fig. 6 is the stiffening web of the straight strip shape body of the utility model and ring strip shape body combined crosswise;
In fig 2,2-1 is the close cone section of top matter, and 2-2 is sintering metal powder micropore section and stiffening web, and 2-3 is the close cone section of bottom matter;
In fig. 3,3-1 is the close cone section of top matter, and 3-2 is sintering metal powder micropore section, and 3-3 is wire cloth, and 3-4 is the close cone section of bottom matter.
Embodiment
Below in conjunction with two kinds of embodiments and accompanying drawing, the utility model is described in further detail, can implements according to this with reference to specification sheets word to make those skilled in the art.
The first embodiment
Be illustrated in figure 2 a specific embodiment of the present utility model, ventilation cone is the close cone section of top matter by 2-1, 2-2 is sintering metal powder micropore section, 2-3 is the close cone section composition of bottom matter, three cone section uniform wall thickness, angle is consistent, this sintering metal powder micropore section 2-2 and the close cone section 2-1 of matter, 2-3 is after cold isostatic compaction, an entirety is sintered directly into by high temperature, thus avoid sintering metal powder micropore section 2-2 and the close cone section 2-1 of matter, 2-3 directly welds unbalanced stress and the strength reduction of generation, outer wall has and sintering metal powder micropore section one sinter molding stiffening web, the present embodiment stiffening web is the vertical bar shape along generatrix direction, several are evenly distributed on outer wall circumference radial direction, improve the overall bearing capacity of ventilation cone and the ability of antifatigue load.
The second embodiment
Be illustrated in figure 3 another specific embodiment of the present utility model, ventilation cone by 3-1 be the close cone section of top matter, 3-2 is sintering metal powder micropore section, 3-3 is wire cloth, 3-4 is the close cone section composition of bottom matter.First wire cloth 3-3 is welded on the inwall of top matter close cone section 3-1 and the close cone section 3-4 of bottom matter, close cone section 3-1,3-4 and wire cloth 3-3, after cold isostatic compaction, are sintered directly into an entirety by high temperature to sintering metal powder micropore section 3-2 with matter again.This kind of scheme is on the basis of the first embodiment, add wire cloth 3-3, the ability of the bulk strength of ventilation cone, bearing capacity and antifatigue load is turn improved, and under the operating mode that some is severe, if once sintering metal powder micropore section 3-2 is damaged, its fragment has the interception of wire cloth 3-3 then can not enter ventilation cone internal blocking pipeline and nozzle, and then enhances productivity, reduce production cost, greatly improve the stability of plant running.
Claims (7)
1. a high strength ventilation cone, it is characterized in that monnolithic case is round table-like, inner hollow, upper/lower terminal opening, uniform wall thickness, three, upper, middle and lower cone section angle is consistent, middle one section is sintering metal powder poromerics, outer wall has the stiffening web with sintering metal powder micropore section one sinter molding, and wherein stiffening web is sintering metal powder poromerics, and sintering metal powder micropore section inwall can also have layer of metal silk screen.
2. high strength ventilation cone according to claim 1, is characterized in that stiffening web is straight strip shape body along generatrix direction and is uniformly distributed along sintering metal powder micropore section outer wall circumference radial direction.
3. high strength ventilation cone according to claim 1, is characterized in that stiffening web is ring strip shape body and is axially uniformly distributed along sintering metal powder micropore section outer wall circumference.
4. high strength ventilation cone according to claim 1, is characterized in that stiffening web is straight strip shape body along generatrix direction and ring strip shape body in axial direction, is uniformly distributed respectively along the radial and axial intersection of sintering metal powder micropore section outer wall circumference.
5. high strength ventilation cone according to claim 1, is characterized in that sintering metal powder micropore section and close section of upper and lower matter are after cold isostatic compaction, are sintered directly into an entirety by high temperature.
6. high strength ventilation cone according to claim 1, its characteristic metal silk screen welds with close section of upper and lower matter, then with sintering metal powder micropore section after cold isostatic compaction, is sintered directly into an entirety by high temperature.
7. high strength ventilation cone according to claim 1, is characterized in that wire cloth is single-layer metal silk screen or multi-layer sintering wire cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753363.2U CN204958833U (en) | 2015-09-25 | 2015-09-25 | High strength awl of ventilating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753363.2U CN204958833U (en) | 2015-09-25 | 2015-09-25 | High strength awl of ventilating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204958833U true CN204958833U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520753363.2U Active CN204958833U (en) | 2015-09-25 | 2015-09-25 | High strength awl of ventilating |
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| CN (1) | CN204958833U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107176464A (en) * | 2017-05-27 | 2017-09-19 | 鲁西化工集团股份有限公司 | A kind of fine coal pressurization fluidization conveying device |
-
2015
- 2015-09-25 CN CN201520753363.2U patent/CN204958833U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107176464A (en) * | 2017-05-27 | 2017-09-19 | 鲁西化工集团股份有限公司 | A kind of fine coal pressurization fluidization conveying device |
| CN107176464B (en) * | 2017-05-27 | 2018-10-26 | 鲁西化工集团股份有限公司 | A kind of fine coal pressurization fluidization conveying device |
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| GR01 | Patent grant |