CN204665887U - Rotary kiln hermetically-sealed construction - Google Patents
Rotary kiln hermetically-sealed construction Download PDFInfo
- Publication number
- CN204665887U CN204665887U CN201520363022.4U CN201520363022U CN204665887U CN 204665887 U CN204665887 U CN 204665887U CN 201520363022 U CN201520363022 U CN 201520363022U CN 204665887 U CN204665887 U CN 204665887U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- rotary kiln
- sealed construction
- copper pipe
- hermetically
- 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.)
- Expired - Fee Related
Links
- 238000010276 construction Methods 0.000 title claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- 239000010949 copper Substances 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
A kind of rotary kiln hermetically-sealed construction, comprise pneumatic triple piece, pneumatic triple piece is connected with gas main entrance, the outlet of gas main is connected with the entrance of the mobile link copper pipe of U-shaped, and the outlet of mobile link copper pipe is connected to the cylinder solenoid valve of each cylinder, and the utility model can prevent kiln tail high temperature, leak the scaling loss of expecting cylinder and tracheae, thus reduce that high temperature damages tracheae and cylinder part, the possibility of service life reduction, there is structure simple, easy for installation, feature with low cost.
Description
Technical field
The utility model belongs to rotary kiln technical field, particularly a kind of rotary kiln hermetically-sealed construction.
Background technology
Cylinder of rotary kiln and fixing Thermal Equipment junction, certainly exist gap, and rotary kiln is negative-pressure operation, in order to the stability preventing cold wind from infiltrating, ensureing system temperature, eliminate kiln hood malleation, stablize thermal technology's operating mode and safeguards system in kiln, sealing device need be set at rotary kiln and Thermal Equipment junction.This sealing mainly keeps in touch to realize by two large diameter drag rings (one dynamic one quiet) end face.In order to make stationary seal ring can do small floating, to adapt to the axial displacement of cylindrical shell, also carry out stuffing box type sealing with the asbestos cord wound with one circuit.Ensure the tight laminating of two drag rings, adopts one week uniform several cylinder to pressurize, cylinder pressure was at one week effect balancing, and be convenient to adjust as required, make the contact surface of two drag rings under any circumstance can contact well, laminating is tight, avoids too early or uneven wear.
But, air-cylinder type sealing often can exist stuck, crack, leak the phenomenons such as grey, when particularly kiln tail pipe temperature is too high, cause the key factor of poor sealing especially, two brake pad cyclizations obtained not tight.After malleation spray ash appears in kiln tail, environment temperature sharply raises, and causes cylinder or tracheae to burn out, the seal failure of kiln tail.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of rotary kiln hermetically-sealed construction, kiln tail high temperature can be prevented, leak the scaling loss of expecting cylinder and tracheae, thus reduce that high temperature damages tracheae and cylinder part, the possibility of service life reduction, there is structure simple, easy for installation, feature with low cost.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of rotary kiln hermetically-sealed construction, comprise pneumatic triple piece 1, pneumatic triple piece 1 is connected with gas main 2 entrance, and the outlet of gas main 2 is connected with the entrance of the mobile link copper pipe 3 of U-shaped, and the outlet of mobile link copper pipe 3 is connected to the cylinder solenoid valve 4 of each cylinder 6.
Between the U-shaped structure of described mobile link copper pipe 3, spacing is not less than 3 times of the upper and lower stroke distances of rotary kiln.
Between the casing wall 7 of described cylinder 6 and piston 8, metallic piston circle 9 is set.
The sidewall of described metallic piston circle 9 there is the otch 10 of broken line shape.
Compared with prior art, the utility model achieves good sealing effectiveness, thus greatly improve the service life of cylinder and tracheae, delayed temperature too high time or kiln tail occur malleation spray ash after, environment temperature sharply raises, cause cylinder or tracheae to burn out, cause the bad seal of rotary kiln caused of cylinder seal to lose efficacy.The utility model effectively can extend the service life of cylinder seal part and tracheae, and have structure simple, it is convenient to install, feature with low cost.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the sectional view of the utility model cylinder interior hermetically-sealed construction.
Fig. 3 is the top view of the utility model cylinder interior hermetically-sealed construction.
Fig. 4 is the side view of the utility model metallic piston circle.
Detailed description of the invention
Embodiment of the present utility model is described in detail below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of rotary kiln hermetically-sealed construction, comprise pneumatic triple piece 1, pneumatic triple piece 1 is connected with gas main 2 entrance, the outlet of gas main 2 is connected with the entrance of the mobile link copper pipe 3 of U-shaped, the outlet of mobile link copper pipe 3 is connected to the cylinder solenoid valve 4 of each cylinder 6, and between the U-shaped structure of mobile link copper pipe 3, spacing is not less than 3 times of the upper and lower stroke distances of rotary kiln.
Pressure is that the source of the gas of about 0.8Mpa enters gas main 2 by pneumatic triple piece 1, from gas main 2 compressed air out, each cylinder solenoid valve 4 is entered by mobile link copper pipe 3, finally enter cylinder 6, the cylinder flexible pipe 5 of cylinder 6 also substitutes with copper pipe, interface shape changes collar joint into by original spigot-and-socket joint, because cylinder 6 approximately often moves up and down a stroke (± 10 ~ 15mm) for 6-8 hour, copper mobile link copper pipe 3 and cylinder flexible pipe 5 effectively can avoid the boiling hot damage phenomenon caused of generating heat.
As shown in Figure 2, Figure 3 and Figure 4, between the casing wall 7 of cylinder 6 and piston 8, metallic piston circle 9 is set, comes the gap of packed-piston 8 and casing wall 7 with metallic piston circle 9.Only have about 200 DEG C because high temperature-resistant cylinder serviceability temperature is the highest, therefore substitute original rubber seal with metallic piston circle 9, and chromium plating process can be carried out at casing wall 7 and metallic piston circle 9 surface.The sidewall of metallic piston circle 9 there is the otch 10 of broken line shape, metallic piston circle 9 forms pre-sealed by himself elasticity and casing wall 7, under the ordering about of gas, lubricating oil and active force, outer ring and the casing wall 7 of metallic piston circle 9 are adjacent to further, reveal gas flow by metallic piston circle otch in theory and be less than 0.5%, and practical service environment is far superior to engine operating environments, normally can use under the operating mode below 500 DEG C.
The utility model processing and fabricating and install time note also following some:
1, pneumatic triple piece 1 normal operation must be guaranteed, in cylinder 6, have enough lubricating oil, reduce the wearing and tearing of metallic piston circle 9;
2, for reducing quantity of gas leakage, during making to cylinder 6 and metallic piston circle 9 machining accuracy and roughness requirements higher, metallic piston circle 9 can arrange multiple tracks, but must guarantee that 10 points, otch is staggeredly arranged.
Claims (4)
1. a rotary kiln hermetically-sealed construction, comprise pneumatic triple piece (1), pneumatic triple piece (1) is connected with gas main (2) entrance, it is characterized in that, the outlet of gas main (2) is connected with the entrance of the mobile link copper pipe (3) of U-shaped, and the outlet of mobile link copper pipe (3) is connected to the cylinder solenoid valve (4) of each cylinder (6).
2. rotary kiln hermetically-sealed construction according to claim 1, it is characterized in that, between the U-shaped structure of described mobile link copper pipe (3), spacing is not less than 3 times of the upper and lower stroke distances of rotary kiln.
3. rotary kiln hermetically-sealed construction according to claim 1, is characterized in that, arrange metallic piston circle (9) between the casing wall (7) of described cylinder (6) and piston (8).
4. rotary kiln hermetically-sealed construction according to claim 3, is characterized in that the sidewall of described metallic piston circle (9) there is the otch (10) of broken line shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520363022.4U CN204665887U (en) | 2015-05-29 | 2015-05-29 | Rotary kiln hermetically-sealed construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520363022.4U CN204665887U (en) | 2015-05-29 | 2015-05-29 | Rotary kiln hermetically-sealed construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204665887U true CN204665887U (en) | 2015-09-23 |
Family
ID=54136264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520363022.4U Expired - Fee Related CN204665887U (en) | 2015-05-29 | 2015-05-29 | Rotary kiln hermetically-sealed construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204665887U (en) |
-
2015
- 2015-05-29 CN CN201520363022.4U patent/CN204665887U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 |