CN114932122A - Device for flushing hydraulic system and thin oil system of vertical mill and flushing method - Google Patents
Device for flushing hydraulic system and thin oil system of vertical mill and flushing method Download PDFInfo
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- CN114932122A CN114932122A CN202210607095.8A CN202210607095A CN114932122A CN 114932122 A CN114932122 A CN 114932122A CN 202210607095 A CN202210607095 A CN 202210607095A CN 114932122 A CN114932122 A CN 114932122A
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- Prior art keywords
- grinding roller
- thin oil
- pipe
- speed reducer
- oil supply
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- 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.)
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000003921 oil Substances 0.000 claims abstract description 233
- 238000000227 grinding Methods 0.000 claims abstract description 142
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 67
- 210000002445 nipple Anatomy 0.000 claims abstract description 25
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 22
- 238000004140 cleaning Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010729 system oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The invention discloses a device and a method for flushing a hydraulic system and a thin oil system of a vertical mill. A main speed reducer thin oil supply pipe of a main speed reducer thin oil station is communicated with a high-pressure thin oil supply temporary pipe, the high-pressure thin oil supply temporary pipe is communicated with a main speed reducer thin oil short connecting pipe through a grinding disc thrust tile high-pressure oil supply pipe, and two ends of the main speed reducer thin oil short connecting pipe are respectively communicated with the main speed reducer thin oil supply pipe and the main speed reducer thin oil return pipe at one end of a main speed reducer; a grinding roller oil supply temporary pipe is arranged at the outlet of an oil supply pump of the main speed reducer thin oil station and is communicated with a grinding roller hydraulic oil supply pipe of the grinding roller hydraulic station, and a grinding roller hydraulic oil supply pipe and a grinding roller hydraulic oil return pipe at one end of a grinding roller hydraulic cylinder are communicated through a grinding roller hydraulic nipple; and a grinding roller thin oil supply pipe of the grinding roller thin oil station is communicated with the grinding roller oil supply temporary pipe. The circulating flushing time of the vertical mill hydraulic system and the thin oil system is greatly shortened, the efficiency is greatly improved, and the flushing quality is ensured.
Description
Technical Field
The invention relates to a vertical mill, in particular to a device and a method for flushing a hydraulic system and a thin oil system of the vertical mill.
Background
In the installation engineering of the vertical mill, the vertical mill is generally designed into a main speed reducer thin oil system, a high-pressure thin oil system, a grinding roller loading hydraulic system and a grinding roller bearing thin oil system, and the main speed reducer thin oil system and the high-pressure thin oil system share a main speed reducer thin oil station. At present, 4 systems are respectively flushed, so that the consumption of temporary pipelines, filter elements and flushing oil is considerable, the flushing cost is increased, the time consumption of the flushing process is long, and the construction period is influenced. An external power source (a washing vehicle) is used for washing, so that the mechanical transportation and use cost, the material consumption, the labor cost and the prolonged construction period are further increased.
Disclosure of Invention
The invention aims to solve the technical problems, and provides a device for flushing a hydraulic system and a thin oil system of a vertical mill, which improves the management flushing efficiency.
The invention solves the technical problem, and adopts the technical scheme that:
a hydraulic system of a vertical mill and a device for flushing a thin oil system are disclosed, wherein the thin oil system comprises a main speed reducer thin oil station, a main speed reducer thin oil supply pipe, a main speed reducer thin oil return pipe, a grinding disc thrust tile high-pressure oil supply pipe, a grinding roller thin oil station, a grinding roller thin oil supply pipe, a grinding roller thin oil return pipe and a grinding roller bearing; a grinding roller oil supply temporary pipe is arranged at the outlet of an oil supply pump of the main speed reducer lubricating station and is communicated with a grinding roller hydraulic oil supply pipe of the grinding roller hydraulic station, and the grinding roller hydraulic oil supply pipe and a grinding roller hydraulic oil return pipe at one end of a grinding roller hydraulic cylinder are communicated through a grinding roller hydraulic nipple; a grinding roller thin oil supply pipe of the grinding roller thin oil station is communicated with the grinding roller oil supply temporary pipe, and a grinding roller thin oil supply pipe at the bearing end of the grinding roller is communicated with the grinding roller thin oil return pipe through a grinding roller thin oil nipple; the oil mirror hole of the thin oil tank of the thin oil station of the main speed reducer is communicated with the grinding roller oil return temporary pipe, and the grinding roller oil return temporary pipe is respectively communicated with the grinding roller hydraulic oil return pipe and the grinding roller thin oil return pipe.
A flushing method of a device for flushing a hydraulic system and a thin oil system of a vertical mill comprises the following steps:
a, cleaning a thin oil tank of a thin oil station of a main speed reducer, wherein the thin oil tank is used as a cleaning oil tank, and hydraulic oil is filled in the thin oil tank;
step B, replacing the filter of the thin oil station of the main speed reducer with a filter for flushing;
c, manufacturing a high-pressure thin oil supply temporary pipe, a grinding roller oil return temporary pipe, a grinding roller thin oil nipple, a grinding roller hydraulic nipple and a main speed reducer thin oil nipple;
step D, installing a first temporary control valve, a high-pressure thin oil supply temporary pipe and a thin oil short connecting pipe of the main speed reducer;
e, mounting a grinding roller oil supply temporary pipe, a second temporary control valve and a grinding roller oil return temporary pipe;
step F, installing a grinding roller hydraulic nipple and a grinding roller thin oil nipple;
and G, opening the first temporary control valve and the second temporary control valve, and starting the oil supply pump to clean the pipeline.
Compared with the prior art, the invention adopting the technical scheme has the beneficial effects that:
the structure is simple, the circulating flushing time of a vertical mill hydraulic system and a thin oil system is greatly shortened, the efficiency is greatly improved, and the flushing quality is ensured; meanwhile, the material consumption, the input and the removal workload of temporary pipelines, filter elements and flushing oil are reduced, the transportation and use cost of a flushing vehicle is completely saved, the construction cost is greatly reduced, and the construction period is shortened.
Further, the optimization scheme of the invention is as follows:
and a flushing filter is arranged at the outlet of the oil supply pump.
And a first temporary control valve is arranged on a thin oil supply pipe at the outlet end of the flushing filter.
And the grinding roller oil supply temporary pipe is provided with a second temporary control valve.
Drawings
FIG. 1 is a schematic diagram of the connection of the flushing pipelines of a main speed reducer thin oil station, a grinding roller thin oil station and a grinding roller hydraulic station in the embodiment of the invention;
FIG. 2 is a schematic piping diagram of a main reducer of the thin oil system according to the embodiment of the invention;
FIG. 3 is a schematic piping diagram of a grinding roller bearing of a thin oil system in accordance with an embodiment of the present invention;
FIG. 4 is a schematic illustration of a hydraulic cylinder circuit of the hydraulic system of an embodiment of the present invention.
In the figure: an oil supply pump 1; a washing filter 2; a first temporary control valve 3; a thin oil tank 4; 4-1 of oil lens holes; a main speed reducer thin oil supply pipe 5; a high-pressure thin oil supply temporary pipe 6; a high-pressure oil supply pipe 7 of the grinding disc thrust pad; a main speed reducer thin oil return pipe 8; a grinding roller thin oil return pipe 9; a grinding roller thin oil supply pipe 10; a hydraulic oil return pipe 11 of the grinding roller; a grinding roller hydraulic oil supply pipe 12; a grinding roller oil return temporary pipe 13; a grinding roller oil supply temporary pipe 14; a second temporary control valve 15; a grinding roller thin oil nipple 16; a grinding roller hydraulic nipple 17; a main reducer 18; a hydraulic cylinder 19; a grinding roller bearing 20; a main reducer thin oil station 21; a grinding roll thin oil station 22; a grinding roller hydraulic station 23; main reducer thin oil nipple 24.
Detailed Description
The invention is further described in detail below with reference to the figures and examples.
Referring to fig. 1 to 4, the embodiment is a device and a method for flushing a hydraulic system and a thin oil system of a vertical mill, the thin oil system of the vertical mill is composed of a main speed reducer thin oil system, a high-pressure thin oil system and a grinding roller thin oil system, the main speed reducer thin oil system is mainly composed of an oil supply pump 1, a main speed reducer 18, a main speed reducer thin oil supply pipe 5 and a main speed reducer thin oil return pipe 8, the high-pressure thin oil system is mainly composed of a high-pressure pump (not shown in the figures), a grinding disc thrust tile high-pressure oil supply pipe 7 and a grinding disc thrust tile (not shown in the figures), and the main speed reducer thin oil system and the high-pressure thin oil system share a main speed reducer thin oil station 21.
The main speed reducer thin oil station 21 mainly comprises an oil supply pump 1, a thin oil tank 4 and a high pressure pump (not shown in the figure), wherein the oil supply pump 1 is a low pressure pump, a flushing filter 2 is installed at the outlet of the oil supply pump 1, a first temporary control valve 4 is installed at the outlet end of the flushing filter 2, the outlet of the first temporary control valve 4 is communicated with the inlet of a thin oil supply pipe 5 of the main speed reducer, one end of a high-pressure thin oil supply temporary pipe 6 is communicated with the thin oil supply pipe 5 of the main speed reducer at one end of the thin oil station 21 of the main speed reducer, the pipe body of the high-pressure thin oil supply temporary pipe 6 is communicated with the inlet of a grinding disc thrust tile high-pressure oil supply pipe 7, the other end of the high-pressure thin oil supply temporary pipe 6 is sealed, the number of the grinding disc thrust tile high-pressure oil supply pipes 7 is 16, the outlet of the grinding disc thrust tile high-pressure oil supply pipe 7 is communicated with a thin oil short connecting pipe 24 of the main speed reducer, two ends of the short thin oil supply pipe 24 are respectively communicated with the thin oil supply pipe 5 and the main thin oil return pipe 8 at one end of the main speed reducer 18, the other end of the main speed reducer thin oil return pipe 8 is communicated with an oil return opening of the thin oil tank 4.
The grinding roller thin oil system mainly comprises a grinding roller thin oil station 22, a grinding roller thin oil return pipe 9, a grinding roller thin oil supply pipe 10 and three grinding roller bearings 20 which are connected in parallel. The outlet end of the filter 2 for washing is provided with a grinding roller oil supply temporary pipe 14, the grinding roller oil supply temporary pipe 14 is provided with a second temporary control valve 15, the grinding roller oil supply temporary pipe 14 is communicated with a grinding roller thin oil supply pipe 10 of a grinding roller thin oil station 22, a grinding roller thin oil return pipe 9 at one end of each grinding roller bearing 20 is communicated with the grinding roller thin oil supply pipe 10 through a grinding roller thin oil nipple 16, the grinding roller thin oil return pipe 9 at one end of the grinding roller thin oil station 22 is communicated with one end of a grinding roller oil return temporary pipe 13, and the other end of the grinding roller oil return temporary pipe 13 is communicated with an oil mirror hole 4-1 of a thin oil tank 4.
The grinding roller hydraulic system mainly comprises a grinding roller hydraulic station 23, a grinding roller hydraulic oil return pipe 11, a grinding roller hydraulic oil supply pipe 12 and six hydraulic cylinders 19 which are connected in parallel, wherein one group of two hydraulic cylinders are provided. The grinding roller oil supply temporary pipe 14 is communicated with a grinding roller hydraulic oil supply pipe 12 at one end of a grinding roller hydraulic station 23, a grinding roller hydraulic oil return pipe 11 at one end of each hydraulic cylinder 19 is communicated with the grinding roller hydraulic oil supply pipe 12 through a grinding roller hydraulic nipple 17, and the grinding roller hydraulic oil return pipe 11 at one end of the grinding roller hydraulic station 23 is communicated with a grinding roller oil return temporary pipe 13.
A flushing method of a device for flushing a hydraulic system and a thin oil system of a vertical mill comprises the following steps:
a, cleaning a thin oil tank 4 of a thin oil station 21 of a main speed reducer, wherein the thin oil tank 4 is used as a cleaning oil tank, and No. 46 hydraulic oil is filled in the thin oil tank 4;
step B, replacing the filter of the main speed reducer thin oil station 21 with a flushing filter 2, and replacing a filter element in the main speed reducer thin oil filter according to the required precision corresponding to the cleanliness grade required by the hydraulic system to serve as the flushing filter 2;
c, manufacturing a high-pressure thin oil supply temporary pipe 6, a grinding disc thrust tile high-pressure oil supply pipe 7, a grinding roller oil return temporary pipe 13, a grinding roller oil supply temporary pipe 14, a grinding roller thin oil nipple 16, a grinding roller hydraulic nipple 17 and a main speed reducer thin oil nipple 24;
step D, installing a first temporary control valve 3, a high-pressure thin oil supply temporary pipe 6, a grinding disc thrust bush high-pressure oil supply pipe 7 and a main speed reducer thin oil short connecting pipe 24;
e, installing a grinding roller oil supply temporary pipe 14, a second temporary control valve 15 and a grinding roller oil return temporary pipe 13;
step F, mounting grinding roller hydraulic nipple 17 at one end of six hydraulic cylinders 19, and mounting grinding roller thin oil nipple 16 at one end of three grinding roller bearings 20;
and G, opening the first temporary control valve 3 and the second temporary control valve 15, starting the oil supply pump 1, and cleaning the pipeline.
The invention takes a main speed reducer thin oil station, a thin oil tank and a pipeline system as cores, a grinding roller thin oil system oil supply and return pipe and a grinding roller hydraulic system oil supply and return pipe are respectively communicated with the main speed reducer thin oil system, a low-pressure oil supply pump of the main speed reducer thin oil station is taken as a flushing pump, an oil supply pump is taken as a power source, a filter for flushing the main speed reducer thin oil station performs a filtering function, and oil circulation flushing of 4 systems is synchronously completed at one time. The oil circulation flushing time of a hydraulic system and a thin oil system of the vertical mill is obviously shortened, the efficiency is greatly improved, and the flushing quality is ensured. Meanwhile, the material consumption, the input and the removal workload of the temporary pipeline, the filter element and the flushing oil are reduced, the transportation and use cost of the flushing vehicle is completely saved, and the construction cost is greatly reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.
Claims (5)
1. The utility model provides a device that hydraulic system and thin oil system of standing mill washed, the thin oil system includes that main speed reducer thin oil station, main speed reducer thin oil supply pipe, main speed reducer thin oil return pipe, mill thrust tile high pressure supply pipe, grinding roller thin oil station, grinding roller thin oil supply pipe, grinding roller thin oil return pipe and grinding roller bearing, hydraulic system includes grinding roller pneumatic cylinder and grinding roller hydraulic pressure station, its characterized in that:
the main speed reducer thin oil supply pipe of the main speed reducer thin oil station is communicated with a high-pressure thin oil supply temporary pipe, the high-pressure thin oil supply temporary pipe is communicated with a main speed reducer thin oil short connecting pipe through a grinding disc thrust tile high-pressure oil supply pipe, and two ends of the main speed reducer thin oil short connecting pipe are respectively communicated with the main speed reducer thin oil supply pipe and the main speed reducer thin oil return pipe at one end of the main speed reducer;
a grinding roller oil supply temporary pipe is arranged at the outlet of an oil supply pump of the main speed reducer lubricating station and is communicated with a grinding roller hydraulic oil supply pipe of the grinding roller hydraulic station, and the grinding roller hydraulic oil supply pipe and a grinding roller hydraulic oil return pipe at one end of a grinding roller hydraulic cylinder are communicated through a grinding roller hydraulic nipple;
a grinding roller thin oil supply pipe of the grinding roller thin oil station is communicated with the grinding roller oil supply temporary pipe, and a grinding roller thin oil supply pipe and a grinding roller thin oil return pipe at the bearing end of the grinding roller are communicated through a grinding roller thin oil nipple;
the oil mirror hole of the thin oil tank of the thin oil station of the main speed reducer is communicated with the grinding roller oil return temporary pipe, and the grinding roller oil return temporary pipe is respectively communicated with the grinding roller hydraulic oil return pipe and the grinding roller thin oil return pipe.
2. The apparatus for flushing the hydraulic system and the thin oil system of the vertical mill according to claim 1, characterized in that: and a flushing filter is arranged at the outlet of the oil supply pump.
3. The apparatus for flushing the hydraulic system and the thin oil system of the vertical mill according to claim 2, characterized in that: and a first temporary control valve is arranged on a thin oil supply pipe of the main speed reducer at the outlet end of the flushing filter.
4. The apparatus for flushing the hydraulic system and the thin oil system of the vertical mill according to claim 1, characterized in that: and the grinding roller oil supply temporary pipe is provided with a second temporary control valve.
5. A method for flushing the hydraulic system and thin oil system of a vertical mill according to any one of claims 1-4, comprising the steps of:
a, cleaning a thin oil tank of a thin oil station of a main speed reducer, wherein the thin oil tank is used as a cleaning oil tank, and hydraulic oil is filled in the thin oil tank;
step B, replacing the filter of the thin oil station of the main speed reducer with a filter for flushing;
c, manufacturing a high-pressure thin oil supply temporary pipe, a grinding roller oil return temporary pipe, a grinding roller thin oil nipple, a grinding roller hydraulic nipple and a main speed reducer thin oil nipple;
step D, installing a first temporary control valve, a high-pressure thin oil supply temporary pipe and a thin oil short connecting pipe of the main speed reducer;
e, installing a grinding roller oil supply temporary pipe, a second temporary control valve and a grinding roller oil return temporary pipe;
step F, installing a grinding roller hydraulic nipple and a grinding roller thin oil nipple;
and G, opening the first temporary control valve and the second temporary control valve, and starting the oil supply pump to clean the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210607095.8A CN114932122B (en) | 2022-05-31 | 2022-05-31 | Flushing device and flushing method for hydraulic system and thin oil system of vertical mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210607095.8A CN114932122B (en) | 2022-05-31 | 2022-05-31 | Flushing device and flushing method for hydraulic system and thin oil system of vertical mill |
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| Publication Number | Publication Date |
|---|---|
| CN114932122A true CN114932122A (en) | 2022-08-23 |
| CN114932122B CN114932122B (en) | 2024-09-20 |
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|---|---|---|---|
| CN202210607095.8A Active CN114932122B (en) | 2022-05-31 | 2022-05-31 | Flushing device and flushing method for hydraulic system and thin oil system of vertical mill |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988508A (en) * | 1995-09-22 | 1997-03-31 | Toshiba Corp | Turbine oil flushing device |
| CN201216941Y (en) * | 2008-07-18 | 2009-04-08 | 赵冬 | Thin oil lubricating device for vertical grinder cylinder bearing |
| CN101543825A (en) * | 2009-03-30 | 2009-09-30 | 中国第一冶金建设有限责任公司 | Closed self-circulation hydraulic pipeline flusher |
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| CN201431986Y (en) * | 2009-03-30 | 2010-03-31 | 中国第一冶金建设有限责任公司 | Flushing device for closed self-circulating hydraulic pipeline |
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| CN202893752U (en) * | 2012-11-15 | 2013-04-24 | 南通海狮船舶机械有限公司 | Hydraulic cleaning device for pipelines |
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| CN109365432A (en) * | 2018-12-08 | 2019-02-22 | 中国二十二冶集团有限公司 | The circulation oil flushing equipment and its flushing construction method of hydraulic system pipeline |
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2022
- 2022-05-31 CN CN202210607095.8A patent/CN114932122B/en active Active
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| Publication number | Publication date |
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| CN114932122B (en) | 2024-09-20 |
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