CN110657132A - Ladle lifting valve platform with high-pressure filter and using method thereof - Google Patents
Ladle lifting valve platform with high-pressure filter and using method thereof Download PDFInfo
- Publication number
- CN110657132A CN110657132A CN201810603181.5A CN201810603181A CN110657132A CN 110657132 A CN110657132 A CN 110657132A CN 201810603181 A CN201810603181 A CN 201810603181A CN 110657132 A CN110657132 A CN 110657132A
- Authority
- CN
- China
- Prior art keywords
- oil
- way
- main
- jacking
- hydraulic lock
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to the field of fluid pressure actuating mechanisms, in particular to a ladle lifting valve table with a high-pressure filter and a using method thereof. The utility model provides a ladle lift valve platform with high pressure filter, includes main pump (1) and jacking cylinder (2), characterized by: the hydraulic control system is characterized by further comprising a main oil way (3), a hydraulic lock (4), an oil pressure sensor (51), a high-pressure filter (52) and an electromagnetic directional valve (53), wherein an oil delivery end of the main pump (1) is respectively connected with a main oil way A (31) and a control oil way B (32) through the main oil way (3); the oil outlet end of the hydraulic lock (4) is connected with the jacking oil cylinder (2) through an oil outlet pipe (34). A use method of a ladle lifting valve platform with a high-pressure filter is characterized by comprising the following steps: the method is implemented in sequence according to the following steps: firstly, the oil cylinder rises; and the oil cylinder descends. The invention has short operation time, high production efficiency and long service life of parts.
Description
Technical Field
The invention relates to the field of fluid pressure actuating mechanisms, in particular to a ladle lifting valve table with a high-pressure filter and a using method thereof.
Background
In modern steel making, in order to produce more suitable molten steel for continuous casting, the composition of the molten steel discharged from a converter needs to be finely adjusted to meet the requirements of continuous casting on the composition and temperature of the molten steel, so that the relative adjustment of the composition of the molten steel needs to be completed through an RH furnace or an LF furnace.
Under the normal condition, when an RH hydraulic system is designed, a high-pressure filter is additionally arranged at the outlet of each main pump so as to ensure the cleanliness of oil in the system; however, sometimes the oil in the pipeline is polluted due to incomplete pipeline cleaning or other pollution, so that the hydraulic lock is blocked and abraded, the hydraulic lock cannot be smoothly opened when the ladle descends, and the whole refining process is blocked, so that the production rhythm is delayed.
Disclosure of Invention
In order to overcome the defects of the prior art and provide a ladle lifting valve table with a high-pressure filter and a using method thereof, the invention provides a ladle lifting valve table with a shortened operation time, improved production efficiency, prolonged service life of components and saved expenditure.
The invention achieves the purpose by the following technical scheme:
the utility model provides a ladle lift valve platform with high pressure filter, includes main pump and jacking cylinder, characterized by: also comprises a main oil path, a hydraulic lock, an oil pressure sensor, a high-pressure filter and an electromagnetic directional valve,
the oil delivery end of the main pump is respectively connected with one end of a main oil way A and one end of a control oil way B through a main oil way, the other end of the main oil way A and the other end of the control oil way are respectively connected with an oil inlet A and a control oil port X of a hydraulic lock, a pressure sensor and an electromagnetic directional valve are sequentially connected in series on the control oil way, two ends of a throttling oil way are respectively connected with the electromagnetic directional valve and the control oil port X of the hydraulic lock, and at least one throttling valve is connected in series on the throttling oil way;
the oil outlet end of the hydraulic lock is connected with the jacking oil cylinder through an oil outlet pipe, and the oil outlet pipe is connected with an oil pressure sensor in series.
The ladle lift valve platform with the high-pressure filter is characterized in that: the control oil circuit is also connected with a high-pressure filter in series; two throttle valves are connected in series on the throttle oil path.
The using method of the ladle lifting valve platform with the high-pressure filter is characterized by comprising the following steps: the method is implemented in sequence according to the following steps:
raising an oil cylinder: the main pump operates, and oil output by the main pump is injected into the jacking oil cylinder through the main oil way, the main oil way A, the oil inlet A of the hydraulic lock, the oil outlet B of the hydraulic lock and the oil outlet pipe in sequence; at the moment, the electromagnetic directional valve is switched off and closed, the pressure sensor connected in series with the oil outlet pipe displays the working pressure of the oil when the jacking oil cylinder rises, the jacking oil cylinder drives the steel ladle to rise through the piston jacking frame, so that the steel ladle rises to a molten steel treatment position, and then the molten steel in the steel ladle is subjected to component treatment;
secondly, descending the oil cylinder: the electromagnetic directional valve is powered on and opened, oil output by the main pump is injected into a control oil port X of the hydraulic lock sequentially through the main oil way and the control oil way B to open an oil inlet A and an oil outlet B of the hydraulic lock, the oil flows out of the jacking oil cylinder under the action of gravity, flows to the oil inlet A through the oil outlet B of the hydraulic lock, and flows back to an oil tank through the main oil way and the main oil way in a motor state when the main pump descends; the control oil is filtered through the high-pressure filter when flowing through the control oil way B, so that the hydraulic lock control oil port X can be prevented from being blocked; the oil pressure sensor connected in series on the outlet control oil way B displays the control pressure when the jacking oil cylinder descends, whether the jacking oil cylinder is in a working state or not can be observed in the control room, the piston of the jacking oil cylinder descends to the bottom under the action of gravity, and the descending speed of the piston of the jacking oil cylinder is controlled by controlling the opening of the throttle valve to control the opening of the hydraulic lock.
The invention adopts a mode of additionally arranging the high-pressure filter before the hydraulic lock, thereby solving the problem of oil liquid pollution. The invention cancels 4 high-pressure filters at the outlet of the main pump, and adds a high-pressure filter on the main control valve table, thereby not only reducing the equipment investment, but also ensuring that the hydraulic lock can be smoothly opened, ensuring that the oil cylinder safely and smoothly descends, and further ensuring the smooth completion of the RH refining process.
The invention fundamentally solves the problem that the hydraulic lock can not be opened in the descending process of the oil cylinder, saves the time for the vacuum refining process and improves the production efficiency; the service life of the hydraulic lock is prolonged, and the expenditure is saved.
The invention has the following beneficial effects: simple structure, safe and reliable, be convenient for adjust, it is convenient to maintain.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
The utility model provides a ladle lift valve platform with high pressure filter, includes main pump 1, jacking cylinder 2, main oil circuit 3, hydraulic pressure lock 4, oil pressure sensor 51, high pressure filter 52 and solenoid directional valve 53, as shown in figure 1, the concrete structure is:
the oil delivery end of the main pump 1 is respectively connected with one end of a main oil way A31 and one end of a control oil way B32 through a main oil way 3, the other end of the main oil way A31 and the other end of the control oil way 32 are respectively connected with an oil inlet A and a control oil port X of a hydraulic lock 4, a pressure sensor 51, a high-pressure filter 52 and an electromagnetic directional valve 53 are sequentially connected on the control oil way 32 in series, two ends of a throttling oil way 33 are respectively connected with the electromagnetic directional valve 53 and the control oil port X of the hydraulic lock 4, and two throttling valves 54 are connected on the throttling oil way 33 in;
the oil outlet end of the hydraulic lock 4 is connected with the jacking oil cylinder 2 through an oil outlet pipe 34, and an oil pressure sensor 51 is connected on the oil outlet pipe 34 in series.
When the method is used, the steps are implemented in sequence as follows:
raising an oil cylinder: when the main pump 1 operates, oil output by the main pump 1 is injected into the jacking oil cylinder 2 through the main oil way 3, the main oil way A31, the oil inlet A of the hydraulic lock 4, the oil outlet B of the hydraulic lock 4 and the oil outlet pipe 34 in sequence; at the moment, the electromagnetic directional valve 53 is powered off and closed, the pressure sensor 51 connected in series with the oil outlet pipe 34 displays the working pressure of the oil when the jacking oil cylinder 2 rises, the jacking oil cylinder 2 drives the steel ladle to rise through the piston jacking frame, so that the steel ladle rises to a molten steel treatment position, and then the molten steel in the steel ladle is subjected to component treatment;
secondly, descending the oil cylinder: the electromagnetic directional valve 53 is powered on to be opened, oil output by the main pump 1 is injected into a control oil port X of the hydraulic lock 4 sequentially through the main oil way 3 and the control oil way B32 to open an oil inlet A and an oil outlet B of the hydraulic lock 4, the oil flows out from the jacking oil cylinder 2 under the action of gravity, flows to the oil inlet A through the oil outlet B of the hydraulic lock 4, and flows back to an oil tank through the main oil way 31 and the main oil way 3 in a motor state when the main pump descends; the control oil is filtered by the high-pressure filter 52 when flowing through the control oil way B32, so that the control oil port X of the hydraulic lock 4 can be prevented from being blocked; the oil pressure sensor 51 connected in series on the outlet control oil path B32 displays the control pressure when the jacking oil cylinder 2 descends, whether the jacking oil cylinder 2 is in a working state or not can be observed in a control room, the piston of the jacking oil cylinder 2 descends to the bottom under the action of gravity, and the descending speed of the piston of the jacking oil cylinder 2 is controlled by controlling the opening of the hydraulic lock 4 through controlling the opening of the throttle valve 54.
Claims (3)
1. The utility model provides a ladle lift valve platform with high pressure filter, includes main pump (1) and jacking cylinder (2), characterized by: also comprises a main oil path (3), a hydraulic lock (4), an oil pressure sensor (51), a high-pressure filter (52) and an electromagnetic directional valve (53),
the oil delivery end of the main pump (1) is respectively connected with one end of a main oil way A (31) and one end of a control oil way B (32) through a main oil way (3), the other end of the main oil way A (31) and the other end of the control oil way (32) are respectively connected with an oil inlet A and a control oil port X of a hydraulic lock (4), a pressure sensor (51) and an electromagnetic directional valve (53) are sequentially connected in series on the control oil way (32), two ends of a throttling oil way (33) are respectively connected with the electromagnetic directional valve (53) and the control oil port X of the hydraulic lock (4), and at least one throttling valve (54) is connected in series on the throttling oil way (33);
the oil outlet end of the hydraulic lock (4) is connected with the jacking oil cylinder (2) through an oil outlet pipe (34), and an oil pressure sensor (51) is connected in series on the oil outlet pipe (34).
2. The ladle lift valve station with a high pressure filter as recited in claim 1, wherein: a high-pressure filter (52) is also connected in series on the control oil path (32); two throttle valves (54) are connected in series on the throttle oil path (33).
3. The use method of the ladle lifting valve platform with the high-pressure filter as claimed in claim 1 or 2, is characterized in that: the method is implemented in sequence according to the following steps:
raising an oil cylinder: the main pump (1) operates, and oil output by the main pump (1) is injected into the jacking oil cylinder (2) through the main oil way (3), the main oil way A (31), the oil inlet A of the hydraulic lock (4), the oil outlet B of the hydraulic lock (4) and the oil outlet pipe (34) in sequence; at the moment, the electromagnetic directional valve (53) is switched off and closed, the pressure sensor (51) connected in series with the oil outlet pipe (34) displays the working pressure of the oil when the jacking oil cylinder (2) rises, the jacking oil cylinder (2) drives the steel ladle to rise through the piston jacking frame, so that the steel ladle rises to a molten steel treatment position, and then the molten steel in the steel ladle is subjected to component treatment;
secondly, descending the oil cylinder: the electromagnetic directional valve (53) is powered on to be opened, oil output by the main pump (1) is injected into a control oil port X of the hydraulic lock (4) sequentially through the main oil way (3) and the control oil way B (32), an oil inlet A and an oil outlet B of the hydraulic lock (4) are opened, under the action of gravity, the oil flows out of the jacking oil cylinder (2), flows to the oil inlet A through the oil outlet B of the hydraulic lock (4), and flows back to an oil tank through the main oil way (31) and the main oil way (3) in a motor state when the main pump descends; the control oil is filtered through a high-pressure filter (52) when flowing through a control oil way B (32); an oil pressure sensor (51) connected in series with the outlet control oil way B (32) displays the control pressure when the jacking oil cylinder (2) descends, the piston of the jacking oil cylinder (2) descends to the bottom under the action of gravity, and the descending speed of the piston of the jacking oil cylinder (2) is controlled by controlling the opening of the throttle valve (54) to control the opening of the hydraulic lock (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810603181.5A CN110657132A (en) | 2018-06-12 | 2018-06-12 | Ladle lifting valve platform with high-pressure filter and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810603181.5A CN110657132A (en) | 2018-06-12 | 2018-06-12 | Ladle lifting valve platform with high-pressure filter and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110657132A true CN110657132A (en) | 2020-01-07 |
Family
ID=69026187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810603181.5A Pending CN110657132A (en) | 2018-06-12 | 2018-06-12 | Ladle lifting valve platform with high-pressure filter and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110657132A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363508A (en) * | 2001-12-12 | 2002-08-14 | 浙江大学 | Hydraulic system with flow calculation and feedback control for elevator |
| CN101586584A (en) * | 2008-05-20 | 2009-11-25 | 上海建工股份有限公司 | A kind of high level, tall and slender structure construction creeping formwork hydraulic synchronous control system |
| CN201461604U (en) * | 2009-08-12 | 2010-05-12 | 中冶京诚工程技术有限公司 | Double-station RH ladle jacking hydraulic system |
| CN105351276A (en) * | 2015-12-03 | 2016-02-24 | 徐州重型机械有限公司 | Rotation hydraulic control system and method and crane |
| CN205779966U (en) * | 2016-05-27 | 2016-12-07 | 中冶南方工程技术有限公司 | RH steel ladle jacking hydraulic system |
-
2018
- 2018-06-12 CN CN201810603181.5A patent/CN110657132A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363508A (en) * | 2001-12-12 | 2002-08-14 | 浙江大学 | Hydraulic system with flow calculation and feedback control for elevator |
| CN101586584A (en) * | 2008-05-20 | 2009-11-25 | 上海建工股份有限公司 | A kind of high level, tall and slender structure construction creeping formwork hydraulic synchronous control system |
| CN201461604U (en) * | 2009-08-12 | 2010-05-12 | 中冶京诚工程技术有限公司 | Double-station RH ladle jacking hydraulic system |
| CN105351276A (en) * | 2015-12-03 | 2016-02-24 | 徐州重型机械有限公司 | Rotation hydraulic control system and method and crane |
| CN205779966U (en) * | 2016-05-27 | 2016-12-07 | 中冶南方工程技术有限公司 | RH steel ladle jacking hydraulic system |
Non-Patent Citations (1)
| Title |
|---|
| 李岚萍: "RH钢包顶升液压系统的设计与应用", 《液压与气动》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203954844U (en) | Automatically move filtering and purifying | |
| CN105697475A (en) | Potential energy recycling system and method of higher-position extractor | |
| CN206874583U (en) | A kind of aerial work platform hydraulic energy-saving system | |
| CN203845759U (en) | Automatic-leveling hydraulic device of scissor lift | |
| CN106996400A (en) | A kind of RH steel ladle jacking hydraulic systems of proportioning pump and proportional valve control | |
| CN207212799U (en) | A kind of soft oil route controller of shearing type lifter | |
| CN110657132A (en) | Ladle lifting valve platform with high-pressure filter and using method thereof | |
| CN105020192A (en) | Novel steel ladle lifting synchronous control system | |
| CN106435561B (en) | A kind of blunting component for metal casting surface treatment | |
| CN118561210A (en) | Full-free portal hydraulic system of forklift | |
| CN207715450U (en) | Lower-moving type bender hydraulic system | |
| CN207961100U (en) | A kind of hydraulic control system of flap valve device | |
| CN205331103U (en) | A hydraulic system for controlling paver aircraft bonnet and ceiling lift | |
| CN102304933B (en) | Loader movable arm pilot pressure control system | |
| CN105545832B (en) | A kind of movable gas hood lifting hydraulic control system and method | |
| CN212838663U (en) | Steel ladle lifting control device | |
| CN209083722U (en) | A kind of hydraulic power unit of bolt-type ocean lifting platform | |
| CN206478051U (en) | Bomb truck with load stepping device | |
| CN212669104U (en) | Hydraulic system of full-hydraulic steel coil voltage transformation lifting platform | |
| CN204985135U (en) | Novel ladle lift synchro control device | |
| CN205956100U (en) | Vehicular road surface operation equipment lift cylinder control device | |
| CN202012095U (en) | Movable arm hydraulic energy saving control device for loading machine | |
| CN206360939U (en) | single-layer hot press hydraulic system | |
| CN212616655U (en) | Automatic drain of two vacuum pneumatic valve | |
| CN110862047A (en) | Hydraulic control device and method for explosion-proof synchronous circuit for elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200107 |