CN204574778U - A kind of monoblock type rotary kiln tertiary-air pipe - Google Patents
A kind of monoblock type rotary kiln tertiary-air pipe Download PDFInfo
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- CN204574778U CN204574778U CN201520259100.6U CN201520259100U CN204574778U CN 204574778 U CN204574778 U CN 204574778U CN 201520259100 U CN201520259100 U CN 201520259100U CN 204574778 U CN204574778 U CN 204574778U
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- castable
- air pipe
- rotary kiln
- tertiary
- reinforcing bar
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Abstract
A kind of monoblock type rotary kiln tertiary-air pipe, include the tertiary-air pipe metal tube (2) connected with rotary kiln body inwall (1), be laid in the castable (3) outside metal tube, be arranged at the metal anchorage (4) in castable, be wound in the adhesive tape (5) on anchoring piece, the profile of described castable (3) is set to circular platform type, described metal anchorage (4) adopts the cage type reinforcing bar of circular platform type, tertiary-air pipe metal tube (2) outside and cage type reinforcing bar are all wound with adhesive tape (5), the bottom of the radial reinforcing bar of cage type reinforcing bar and rotary kiln body inwall (1) are by being welded to connect.The utility model stabilized structure, castable difficult drop-off, long service life, effectively can reduce rotary kiln overhaul number of times.
Description
Technical field
The utility model belongs to the third wind duct structure technical field of calcining petroleum coke system rotary kiln.
Background technology
Calcining petroleum coke system need experience long heating, cooling process when starting and shut down, to guarantee calcining petroleum coke system rotary kiln and afterburner refractory material thereof not because violent variations in temperature cracking damage.Minimizing calcining petroleum coke system overhaul and stop frequency are the keys promoting calcining petroleum coke energy saving of system consumption reduction.And in calcining petroleum coke system, the loss of tertiary-air pipe causes rotary kiln overhaul and start and stop equipment one of the main reasons frequently thereof.In actual operation process, the one of the main reasons causing tertiary-air pipe to be damaged is that the triple air duct high temperature castable life-span is too short, and tertiary-air pipe directly faces high temperature and material thereof in kiln and washes away after castable comes off.Finding when research observation tertiary-air pipe castable comes off rule, is that tertiary-air pipe castable comes off the high-incidence season when start and stop and change inventory thereof.Can judge thus, tertiary-air pipe castable the most easily comes off when kiln temperature changes.
As shown in Figure 1 and Figure 2, castable A is cylindrical shape to existing tertiary-air pipe, and the thickness of castable is 12cm, and it, therefore more easily comes off owing to being subject to having the greatest impact of high temperature and variations in temperature near the place of rotary kiln body inwall B.In addition existing metal anchorage C adopts Y shape Rebar anchor, Y shape Rebar anchor only with between tertiary-air pipe metal tube D welds, although each anchoring piece is each other without connection, cause attachment between castable and metal anchorage built on the sand, castable easily comes off.
Summary of the invention
The purpose of this utility model is to solve prior art Problems existing, provides a kind of stabilized structure, castable difficult drop-off, long service life, effectively can reduce the monoblock type rotary kiln tertiary-air pipe of rotary kiln overhaul number of times.
The purpose of this utility model is achieved through the following technical solutions.
A kind of monoblock type rotary kiln tertiary-air pipe, includes the tertiary-air pipe metal tube, the castable be laid in outside metal tube, the metal anchorage be arranged in castable, the adhesive tape be wound on anchoring piece that connect with rotary kiln body inwall; The profile of described castable is set to circular platform type, described metal anchorage adopts the cage type reinforcing bar of circular platform type, tertiary-air pipe metal tube outside and cage type reinforcing bar are all wound with adhesive tape, and the bottom of the radial reinforcing bar of cage type reinforcing bar and rotary kiln body inwall are by being welded to connect.
The top thickness of castable described in the utility model is 12cm, and bottom thickness is 36cm.
Because castable have employed the comparatively thick large circular platform type in bottom, enhance its intensity near rotary kiln body inwall place, can the impact that brings of withstand high temperatures and variations in temperature better.Metal anchorage adopts the cage type reinforcing bar of circular platform type, and cage type reinforcing bar bottom is welded with rotary kiln body inwall in addition, and castable more firmly can be adhered to and is enclosed on anchoring piece, difficult drop-off.Tertiary-air pipe metal tube outside and cage type reinforcing bar are all wound around adhesive tape, the space between castable and metal parts is formed after adhesive tape burning in production process, effectively can reduce metal structure dilation that alternating temperature in kiln causes to the destruction of castable, avoiding the metal heated expansion rate of airduct to be greater than, castable expanded by heating rate produces being split up.
Adopt the utility model, the mechanical strength of Integral lifting calcining petroleum coke system tertiary-air pipe castable and stability, improve petroleum coke shock resistance in the anti-kiln of castable.The utility model extends the service life of tertiary-air pipe, can effectively reduce costs, and promotes calcining petroleum coke energy saving of system emission-reduction technology level.
Accompanying drawing explanation
Fig. 1 is the structural representation that existing tertiary-air pipe is connected with rotary kiln body inwall;
Fig. 2 is the top view of tertiary-air pipe in Fig. 1;
Fig. 3 is the structural representation that the utility model is connected with rotary kiln body inwall;
Fig. 4 is the structural representation of cage reinforcing bar.
Detailed description of the invention
As shown in Figure 3, the utility model includes the tertiary-air pipe metal tube 2 connected with rotary kiln body inwall 1, the castable 3 be laid in outside metal tube, the metal anchorage 4 be arranged in castable; The profile of castable 3 is set to circular platform type, the cage type reinforcing bar of the corresponding employing of metal anchorage 4 circular platform type as shown in Figure 4.The top thickness of castable is 12cm, and bottom thickness is 36cm.At tertiary-air pipe metal tube 2, outside and cage type reinforcing bar is all wound around adhesive tape 5, pad 6 is preset and with rotary kiln body inwall 1 by being welded to connect in the bottom of the radial reinforcing bar of cage type reinforcing bar.
When making the utility model, make cage type reinforcing bar and taper die 7 in advance, first by cage type reinforcing bar bottom welding in rotary kiln body inwall, on tertiary-air pipe metal tube and cage type reinforcing bar, be wound around adhesive tape again destroy castable structure to avoid thermal expansion metal, at the upper conical mould of cage type reinforcing bar outer cover, carry out castable on this basis and lay, castable is laid between taper die and tertiary-air pipe metal tube, material feeding to be poured dry and hard stable after dismantle mould, complete castable and install.
Claims (2)
1. a monoblock type rotary kiln tertiary-air pipe, include the tertiary-air pipe metal tube (2) connected with rotary kiln body inwall (1), be laid in the castable (3) outside metal tube, be arranged at the metal anchorage (4) in castable, be wound in the adhesive tape (5) on anchoring piece, it is characterized in that, the profile of described castable (3) is set to circular platform type, described metal anchorage (4) adopts the cage type reinforcing bar of circular platform type, tertiary-air pipe metal tube (2) outside and cage type reinforcing bar are all wound with adhesive tape (5), the bottom of the radial reinforcing bar of cage type reinforcing bar and rotary kiln body inwall (1) are by being welded to connect.
2. a kind of monoblock type rotary kiln tertiary-air pipe according to claim 1, is characterized in that, the top thickness of described castable is 12cm, and bottom thickness is 36cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520259100.6U CN204574778U (en) | 2015-04-27 | 2015-04-27 | A kind of monoblock type rotary kiln tertiary-air pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520259100.6U CN204574778U (en) | 2015-04-27 | 2015-04-27 | A kind of monoblock type rotary kiln tertiary-air pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204574778U true CN204574778U (en) | 2015-08-19 |
Family
ID=53867401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520259100.6U Active CN204574778U (en) | 2015-04-27 | 2015-04-27 | A kind of monoblock type rotary kiln tertiary-air pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204574778U (en) |
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2015
- 2015-04-27 CN CN201520259100.6U patent/CN204574778U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |