CN104976486A - Wear-resisting ceramic external member for coal powder injection pipe - Google Patents
Wear-resisting ceramic external member for coal powder injection pipe Download PDFInfo
- Publication number
- CN104976486A CN104976486A CN201510365053.8A CN201510365053A CN104976486A CN 104976486 A CN104976486 A CN 104976486A CN 201510365053 A CN201510365053 A CN 201510365053A CN 104976486 A CN104976486 A CN 104976486A
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- CN
- China
- Prior art keywords
- injection pipe
- external member
- locking slot
- guide rail
- coal injection
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a wear-resisting ceramic external member for a coal powder injection pipe. The wear-resisting ceramic external member comprises a pipe body, a fireproof material casing pipe fitting is arranged on the inner wall of the pipe body and defined by a plurality of arc casing pieces, the arc casing pieces are provided with locking grooves, the pipe body is provided with guide rails clamped in the locking grooves, the guide rails extend in the axial direction of the pipe body, and the arc casing pieces can slide along the guide rails.
Description
Technical field
The present invention relates to a kind of coal injection pipe wear-resistant ceramic external member.
Background technique
Modern New dry cement production line, system equipment continues to increase, and the output of clinker is multiplied, and the load that the refractory material that internal system uses bears is also increasing, service condition is more and more harsher, only has the normal operation of high performance refractory material guarantee manufacturing mechanism.The castable at coal injection pipe position subjects the violent scour of high temperature dust air-flow, and the change of this spot temperature is violent, and in gas, alkali vapour concentration is comparatively large, and castable very easily produces the phenomenons such as cracking peels off, and causes degradation in working life.The coal injection pipe castable fluctuation in working life that domestic main cement production enterprise uses, at 6-8 month, cannot accomplish the overhaul time synchronization annual with cement production enterprise.
Summary of the invention
Technical problem to be solved by this invention is to provide one to change coal injection pipe wear-resistant ceramic external member easily.
For solving above-mentioned existing technical problem, the present invention adopts following scheme: coal injection pipe wear-resistant ceramic external member, comprise body, described inboard wall of tube body is provided with refractory sleeve part, described refractory sleeve part is surrounded by some arc nest plates, and described arc nest plate is provided with locking slot, and described body is provided with the guide rail be stuck in locking slot, described guide rail and extending along the axis of body, described arc nest plate can along slide.
As preferably, described locking slot is dovetail groove, and described guide rail is swallow-tail way.
As preferably, described arc nest plate inside is provided with heat-preservation cotton.
Coal injection pipe wear-resistant ceramic external member, comprise body, described inboard wall of tube body is provided with refractory sleeve part, it is characterized in that: described refractory sleeve part is surrounded by some arc nest plates, described arc nest plate is provided with guide rail, described body is provided with the locking slot be stuck on guide rail, and described locking slot extends along the axis of body, and described arc nest plate can slide along locking slot.
As preferably, described locking slot is dovetail groove, and described guide rail is swallow-tail way.
Beneficial effect:
After the present invention adopts technique scheme, this coal injection pipe working condition of wear-resistant ceramic external member for coal injection pipe place, make the replacing of coal injection pipe refractory material from integral demounting, again weldering nail cast become extract out corrode damage nest plate change at once, not only extend also reduce working life because of coal injection pipe maintenance cause stop kiln maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is the structural representation of the embodiment of the present invention two.
Embodiment
Embodiment one:
As shown in Figure 1, coal injection pipe wear-resistant ceramic external member, comprise body 1, body 1 inwall is provided with refractory sleeve part, refractory sleeve part is surrounded by some arc nest plates 2, and arc nest plate 2 is provided with locking slot 3, and body 1 is provided with the guide rail 4 be stuck in locking slot 3, guide rail 4 and extending along the axis of body 1, arc nest plate 2 can along slide.Locking slot 3 is dovetail groove, and described guide rail 4 is swallow-tail way.
In this embodiment, sleeve part volume is comparatively large, is therefore divided into several groups of arc nest plates, locking groove on arc nest plate, not only meets need of work but also be convenient to dismounting, uses heat-preservation cotton, play heat insulation and buffer function in arc nest plate inside.And, after adopting sleeve structure, the use of refractory material can be saved, need not local damage will all change again.Arc nest plate adopts with corundum, zirconium oxide, mullite for matrix, and its leading indicator is as follows: AL2O3>=70%, ρ>=2.7g/cm
3, normal temperature wear extent≤6cm
3, cold crushing strength>=100MPa, apparent porosity≤19%, use anti-corrosion, alkaline-resisting material on the one hand, what more can adapt to that hot blast carries material secretly washes away erosion, improve the material of coal injection pipe, the working life of remarkable lifting coal injection pipe, modified node method on the other hand, make the replacing of coal injection pipe refractory material from integral demounting, again weldering nail cast become extract out corrode damage sleeve part or part nest plate change at once, not only extend also reduce working life because of coal injection pipe maintenance cause stop kiln maintenance.
Embodiment two:
As shown in Figure 2, coal injection pipe wear-resistant ceramic external member, comprise body 1, body 1 inwall is provided with refractory sleeve part, refractory sleeve part is surrounded by some arc nest plates 2, and arc nest plate 2 is provided with guide rail 4, and body 1 is provided with the locking slot 3 be stuck on guide rail 4, locking slot 3 extends along the axis of body 1, and arc nest plate 2 can slide along locking slot 3.Locking slot 3 is dovetail groove, and described guide rail 4 is swallow-tail way, and other structures are identical with embodiment one.
Claims (5)
1. coal injection pipe wear-resistant ceramic external member, comprise body (1), described body (1) inwall is provided with refractory sleeve part, it is characterized in that: described refractory sleeve part is surrounded by some arc nest plates (2), described arc nest plate (2) is provided with locking slot (3), described body (1) is provided with the guide rail (4) be stuck in locking slot (3), described guide rail (4) and extending along the axis of body (1), described arc nest plate (2) can along slide.
2. coal injection pipe wear-resistant ceramic external member according to claim 1, it is characterized in that: described locking slot (3) is dovetail groove, described guide rail (4) is swallow-tail way.
3. coal injection pipe wear-resistant ceramic external member according to claim 1, is characterized in that: described arc nest plate (2) inside is provided with heat-preservation cotton.
4. coal injection pipe wear-resistant ceramic external member, comprise body (1), described body (1) inwall is provided with refractory sleeve part, it is characterized in that: described refractory sleeve part is surrounded by some arc nest plates (2), described arc nest plate (2) is provided with guide rail (4), described body (1) is provided with and is stuck in the upper interior locking slot (3) of guide rail (4), described locking slot (3) extends along the axis of body (1), and described arc nest plate (2) can be slided along locking slot (3).
5. coal injection pipe wear-resistant ceramic external member according to claim 4, it is characterized in that: described locking slot (3) is dovetail groove, described guide rail (4) is swallow-tail way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510365053.8A CN104976486A (en) | 2015-06-25 | 2015-06-25 | Wear-resisting ceramic external member for coal powder injection pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510365053.8A CN104976486A (en) | 2015-06-25 | 2015-06-25 | Wear-resisting ceramic external member for coal powder injection pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104976486A true CN104976486A (en) | 2015-10-14 |
Family
ID=54273276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510365053.8A Pending CN104976486A (en) | 2015-06-25 | 2015-06-25 | Wear-resisting ceramic external member for coal powder injection pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104976486A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1264138A (en) * | 1916-08-28 | 1918-04-30 | Clede Christy Clay Products Co | Interlocking sewer-tile. |
| CN2861697Y (en) * | 2005-12-15 | 2007-01-24 | 襄樊瑞福特电力设备有限公司 | Ceramic lining wearable pipe with special structure |
| CN201778002U (en) * | 2010-04-06 | 2011-03-30 | 东台市节能耐火材料厂 | Efficient gas collection pipe of cleaning type heat recovery coke oven |
| CN202039072U (en) * | 2011-04-18 | 2011-11-16 | 山东聚亿管业有限公司 | Coal injection pipe |
| CN202647068U (en) * | 2012-05-25 | 2013-01-02 | 北京中电联众电力技术有限公司 | Splicing-type self-arching abrasion resistant ceramic component |
| CN203437165U (en) * | 2013-06-26 | 2014-02-19 | 武汉钢铁(集团)公司 | Abrasion-resistant composite lining plates for ball grinder |
| CN203517854U (en) * | 2013-11-08 | 2014-04-02 | 长兴盛华耐火材料有限公司 | Coal-injection duct prefabricated part |
| CN204041737U (en) * | 2014-09-01 | 2014-12-24 | 江苏罡阳股份有限公司 | Abrasion-proof bearing bush |
| CN204139351U (en) * | 2014-08-21 | 2015-02-04 | 北京德勤节能环保科技有限公司 | A kind of fireproof anti-cracking type organic heat-insulating composite plate for building |
| CN204692907U (en) * | 2015-06-25 | 2015-10-07 | 浙江瑞泰耐火材料科技有限公司 | Coal injection pipe wear-resistant ceramic external member |
-
2015
- 2015-06-25 CN CN201510365053.8A patent/CN104976486A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1264138A (en) * | 1916-08-28 | 1918-04-30 | Clede Christy Clay Products Co | Interlocking sewer-tile. |
| CN2861697Y (en) * | 2005-12-15 | 2007-01-24 | 襄樊瑞福特电力设备有限公司 | Ceramic lining wearable pipe with special structure |
| CN201778002U (en) * | 2010-04-06 | 2011-03-30 | 东台市节能耐火材料厂 | Efficient gas collection pipe of cleaning type heat recovery coke oven |
| CN202039072U (en) * | 2011-04-18 | 2011-11-16 | 山东聚亿管业有限公司 | Coal injection pipe |
| CN202647068U (en) * | 2012-05-25 | 2013-01-02 | 北京中电联众电力技术有限公司 | Splicing-type self-arching abrasion resistant ceramic component |
| CN203437165U (en) * | 2013-06-26 | 2014-02-19 | 武汉钢铁(集团)公司 | Abrasion-resistant composite lining plates for ball grinder |
| CN203517854U (en) * | 2013-11-08 | 2014-04-02 | 长兴盛华耐火材料有限公司 | Coal-injection duct prefabricated part |
| CN204139351U (en) * | 2014-08-21 | 2015-02-04 | 北京德勤节能环保科技有限公司 | A kind of fireproof anti-cracking type organic heat-insulating composite plate for building |
| CN204041737U (en) * | 2014-09-01 | 2014-12-24 | 江苏罡阳股份有限公司 | Abrasion-proof bearing bush |
| CN204692907U (en) * | 2015-06-25 | 2015-10-07 | 浙江瑞泰耐火材料科技有限公司 | Coal injection pipe wear-resistant ceramic external member |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151014 |
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| RJ01 | Rejection of invention patent application after publication |