CN102476275B - Segmental installation method for end cover of autogenous mill barrel - Google Patents
Segmental installation method for end cover of autogenous mill barrel Download PDFInfo
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- CN102476275B CN102476275B CN2010105549430A CN201010554943A CN102476275B CN 102476275 B CN102476275 B CN 102476275B CN 2010105549430 A CN2010105549430 A CN 2010105549430A CN 201010554943 A CN201010554943 A CN 201010554943A CN 102476275 B CN102476275 B CN 102476275B
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- quill shaft
- end cover
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Abstract
The invention relates to an installation method for an end cover of an autogenous mill. A segmental installation method for an end cover of an autogenous mill barrel comprises a barrel installation step, a hollow shaft installation step and an end cover installation step, wherein the end cover is uniformly divided into six segments; and the hollow shaft installation and end cover installation steps comprise the following specific steps of: installing an autogenous mill half barrel, and installing three lower segments of the end cover from middle to both sides; arranging a hollow shaft on the installed lower end cover, and arranging a hollow shaft support frame; installing two segments of the end cover on both sides of the upper part of the end cover; coating a lubricating agent on a junction surface between the segment of the end cover in the middle of the upper part and the two segments of the end cover on both sides of the upper part, jointing the end cover with the hollow shaft under the actions of the dead weights of the end cover segments and placing impact force, screwing a bolt on the hollow shaft by using a hydraulic wrench to realize joint of the hollow shaft and the end cover, and fastening comprehensively; and detaching a hollow shaft support frame. According to the invention, installation difficulty is lowered; and a large-sized crane is not required to be used, so that installation cost is saved.
Description
Technical field
The present invention relates to the installation method of preparation equipment, relate in particular to a kind of autogenous tumbling mill end cap installation method.
Background technology
The hundreds and thousands of tons of autogenous tumbling mill cylindrical shell weight, be comprised of quill shaft, 12 1/6 end caps and 6 half cylindrical shells.The maximum difficulty of autogenous tumbling mill assembling is the assembling between quill shaft and end cap and end cap and cylindrical shell.To be 0 interference coordinate to the slight interference of the 0.05mm magnitude of interference for quill shaft and end cap, and end cap and cylindrical shell are 0.1 to 0.2mm seam matched in clearance, the axiality requirement≤0.5mm of two ends quill shaft.
In the world the installation method of large-size autogenous mill quill shaft and end cap adopted: 6 1/6 end caps are assembled into integral body on ground, then are mounted on cylindrical shell, then carry out the installation of quill shaft and end cap.This scheme, install complexity, needs a large amount of human and material resources and financial resources, and the time of cost is long, once certain link is made mistakes, end cap or quill shaft need to be pulled down, and reinstall, so installation risk are large.
Summary of the invention
The present invention is intended to address the above problem, and a kind of segmental installation method for end cover of autogenous mill barrel is provided.Installation difficulty of the present invention reduces; Without using large-scale crane, save installation cost.
The present invention is achieved in that a kind of segmental installation method for end cover of autogenous mill barrel, and it comprises, and cylindrical shell is installed, quill shaft is installed and end cap is installed, and described end cap is divided into six lobes, and described quill shaft is installed and the end cap installation comprises:
Step 1, after autogenous tumbling mill half cylindrical shell is in place, install bottom three lobe end caps according to the order of both sides after in the middle of first, between end cap between bolt, end cap and cylindrical shell bolt carry out pretension;
Step 2, be seated to quill shaft on good and sound lower end cap, and the quill shaft bracing frame is set;
Step 3, installation end covers two lobe end caps of section both sides, between end cap between bolt, end cap and cylindrical shell bolt carry out pretension;
Step 4, the faying face of that lobe end cap in the middle of top and two lobe end caps of both sides, top is coated with lubricant, by the deadweight of end cap lobe and the impulsive force while transferring realize end cap and quill shaft laminating, the bolt that uses hydraulic spanner to tighten connection end cap and cylindrical shell is realized the laminating of end cap and cylindrical shell;
Step 5, under the cooperation of crane, used hydraulic spanner to be tightened bolt on quill shaft, realizes the laminating of quill shaft and end cap, then carries out comprehensively fastening;
Step 6, remove the quill shaft bracing frame, completes the installation of quill shaft, end cap.
Described segmental installation method for end cover of autogenous mill barrel, described step 2, adopt two cranes front and back to lift, in order to adjust the axiality of quill shaft and end cap while lifting when quill shaft is laid; Hoisting rope is joined jack, when quill shaft is in place, by jack, adjusts quill shaft, and the quill shaft bolt hole is alignd with the bolt of cover hole.
End cap distinguish of the present invention is installed, and installation difficulty reduces; Without using large-scale crane, save installation cost.Pre-install quill shaft after installing three of bottoms, 1/6 end cap, than whole end cap, install rear installation quill shaft, installation difficulty is low, and the set-up time is short.The mistake porosity of the concentricity of quill shaft and bolt hole easily is guaranteed.Adopt this installation method, can reduce installation difficulty, shorten the set-up time, there is result of use and economic benefit preferably, and equipment precision can be guaranteed.
The specific embodiment
A kind of segmental installation method for end cover of autogenous mill barrel, it comprises, and cylindrical shell is installed, quill shaft is installed and end cap is installed, and described end cap is divided into six lobes, and described quill shaft is installed and the end cap installation comprises:
Step 1, after autogenous tumbling mill half cylindrical shell is in place, install bottom three lobe end caps according to the order of both sides after in the middle of first, between end cap between bolt, end cap and cylindrical shell bolt carry out pretension;
Step 2, be seated to quill shaft on good and sound lower end cap, and the quill shaft bracing frame is set; Before and after adopting two cranes while lifting when quill shaft is laid, lift, in order to adjust the axiality of quill shaft and end cap; Hoisting rope is joined jack, when quill shaft is in place, by jack, adjusts quill shaft, and the quill shaft bolt hole is alignd with the bolt of cover hole, can adopt in case of necessity the method for pacing amount quill shaft levelness, end cap levelness to carry out approximate processing;
Step 3, installation end covers two lobe end caps of section both sides, between end cap between bolt, end cap and cylindrical shell bolt carry out pretension;
Step 4, the faying face of that lobe end cap in the middle of top and two lobe end caps of both sides, top is coated with lubricant, by the deadweight of end cap lobe and the impulsive force while transferring realize end cap and quill shaft laminating, the bolt that uses hydraulic spanner to tighten connection end cap and cylindrical shell is realized the laminating of end cap and cylindrical shell; If find that installing space is too small, can use hydraulic jack to be finely tuned end cap and quill shaft;
Step 5, under the cooperation of crane, used hydraulic spanner to be tightened bolt on quill shaft, realizes the laminating of quill shaft and end cap, then carries out comprehensively fastening;
Step 6, remove the quill shaft bracing frame, completes the installation of quill shaft, end cap.
Claims (1)
1. a segmental installation method for end cover of autogenous mill barrel, it comprises, and cylindrical shell is installed, quill shaft is installed and end cap is installed, and described end cap is divided into six lobes, it is characterized in that, and described quill shaft is installed and the end cap installation comprises:
Step 1, after the autogenous tumbling mill cylindrical shell is in place, install bottom three lobe end caps according to the order of both sides after in the middle of first, between end cap between bolt, end cap and cylindrical shell bolt carry out pretension;
Step 2, be seated to quill shaft on good and sound lower end cap, and the quill shaft bracing frame is set, and while lifting when quill shaft is laid, adopts two cranes front and back to lift, in order to adjust the axiality of quill shaft and end cap; Hoisting rope is joined jack, when quill shaft is in place, by jack, adjusts quill shaft, and the quill shaft bolt hole is alignd with the bolt of cover hole;
Step 3, installation end covers two lobe end caps of section both sides, between end cap between bolt, end cap and cylindrical shell bolt carry out pretension;
Step 4, the faying face of that lobe end cap in the middle of top and two lobe end caps of both sides, top is coated with lubricant, by the deadweight of end cap lobe and the impulsive force while transferring realize end cap and quill shaft laminating, the bolt that uses hydraulic spanner to tighten connection end cap and cylindrical shell is realized the laminating of end cap and cylindrical shell;
Step 5, under the cooperation of crane, used hydraulic spanner to be tightened bolt on quill shaft, realizes the laminating of quill shaft and end cap, then carries out comprehensively fastening;
Step 6, remove the quill shaft bracing frame, completes the installation of quill shaft, end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105549430A CN102476275B (en) | 2010-11-23 | 2010-11-23 | Segmental installation method for end cover of autogenous mill barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105549430A CN102476275B (en) | 2010-11-23 | 2010-11-23 | Segmental installation method for end cover of autogenous mill barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102476275A CN102476275A (en) | 2012-05-30 |
| CN102476275B true CN102476275B (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105549430A Active CN102476275B (en) | 2010-11-23 | 2010-11-23 | Segmental installation method for end cover of autogenous mill barrel |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759836B (en) * | 2019-02-01 | 2020-08-18 | 七冶建设集团有限责任公司 | Installation method of feeding and discharging end cover of ultra-large toothless mill |
| CN110666510B (en) * | 2019-10-10 | 2020-09-29 | 中国计量大学 | Water heater inner container bottom cover press based on PLC control and assembling method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0652110A2 (en) * | 1993-11-10 | 1995-05-10 | Brother Kogyo Kabushiki Kaisha | Tape printing apparatus having manual tape cutting device |
| CN1603732A (en) * | 2003-09-29 | 2005-04-06 | 中国石油化工股份有限公司 | Valvular electrically heated furnace and application in catalyst carrier decomposition thereof |
| CN201246134Y (en) * | 2008-09-09 | 2009-05-27 | 中国石化股份胜利油田分公司胜利采油厂 | Split type pumping rod self seal |
| CN101666316A (en) * | 2008-09-03 | 2010-03-10 | 上海阿波罗机械制造有限公司 | Auxiliary water supply electric pump in nuclear power plant |
-
2010
- 2010-11-23 CN CN2010105549430A patent/CN102476275B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0652110A2 (en) * | 1993-11-10 | 1995-05-10 | Brother Kogyo Kabushiki Kaisha | Tape printing apparatus having manual tape cutting device |
| CN1603732A (en) * | 2003-09-29 | 2005-04-06 | 中国石油化工股份有限公司 | Valvular electrically heated furnace and application in catalyst carrier decomposition thereof |
| CN101666316A (en) * | 2008-09-03 | 2010-03-10 | 上海阿波罗机械制造有限公司 | Auxiliary water supply electric pump in nuclear power plant |
| CN201246134Y (en) * | 2008-09-09 | 2009-05-27 | 中国石化股份胜利油田分公司胜利采油厂 | Split type pumping rod self seal |
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|---|---|
| CN102476275A (en) | 2012-05-30 |
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