CN2321784Y - Furnace top material flow regulator for blast furnace without bell - Google Patents
Furnace top material flow regulator for blast furnace without bell Download PDFInfo
- Publication number
- CN2321784Y CN2321784Y CN 98228373 CN98228373U CN2321784Y CN 2321784 Y CN2321784 Y CN 2321784Y CN 98228373 CN98228373 CN 98228373 CN 98228373 U CN98228373 U CN 98228373U CN 2321784 Y CN2321784 Y CN 2321784Y
- Authority
- CN
- China
- Prior art keywords
- valve
- signal relay
- plc controller
- solenoid operated
- operated directional
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a material flow regulator for a blast furnace bellless furnace roof. Control signals are sent out by a PLC controller (1) and an opening signal relay (2), or the PLC controller (1) and a closing signal relay (3). The control signals are changed into operation signals at the position of a hydraulic cylinder (8) via a magnetic exchange valve (6), a variable pump with constant pressure (4), an overflow valve (4), and a one-way throttle valve. The utility model uses common instruments and general equipment, so the utility model has the advantages of simple equipment, stable operation of the device, low failure rates, simple maintenance, low investment, and low requirements of a hydraulic system and an external condition.
Description
The utility model belongs to high furnace apparatus, particularly a kind of blast furnace bell-less furnace roof materials flow setting device.
The control of blast furnace bell-less furnace roof materials flow at present adopts the no bell furnace roof stream of control to expect variable valve usually, and the control of its variable valve has two kinds of pulse valve and hydraulicvalves.The Controlling System complexity of these two kinds of valves, investment is big, requires high to hydraulic efficiency system and external conditions.
The purpose of this utility model provides a kind of blast furnace bell-less furnace roof materials flow setting device, and it utilizes conventional hydraulic efficiency plant, and equipment is simple, and is less demanding to hydraulic efficiency system and external conditions, and can control the positional precision of material flow gate.
For reaching above-mentioned purpose, the utility model is driven signal relay by the PLC controller, closes signal relay, constant pressure variable displacement pump, and surplus valve, solenoid operated directional valve, one-way throttle valve, hydro-cylinder is formed.The PLC controller that it is characterized in that this device with drive signal relay and close signal relay and be connected, the signal of PLC controller enters out the switch of signal relay with pilot circuit, driving signal relay is connected with an end of solenoid operated directional valve, closing signal relay is connected with the other end of solenoid operated directional valve, solenoid operated directional valve is connected with constant pressure variable displacement pump, constant pressure variable displacement pump is connected with surplus valve, solenoid operated directional valve and one-way throttle valve, one-way throttle valve is connected with hydro-cylinder, makes the signal of PLC controller pass through solenoid operated directional valve, constant pressure variable displacement pump, surplus valve and one-way throttle valve convert the actuating signal of hydro-cylinder to.
The utility model is owing to adopt common equipment to add common instrument, so control device equipment is simple, installs stablely, and failure rate is low, easy maintenance, and reduced investment, and less demanding to hydraulic efficiency system and external conditions.
Fig. 1 is the structural representation of the utility model device.
1 is the PLC controller among the figure, and 2 for driving signal relay, and 3 for closing signal relay, and 4 is constant pressure variable displacement pump, and 5 is surplus valve, and 6 is solenoid operated directional valve, and 7 is one-way throttle valve, and 8 is hydro-cylinder, and 9 is bearing, and 10 are the materials flow valve plate, and 11 is photoelectric code disk.
Below by embodiment the utility model is described further.
Set the position of the need control material flow gate of this device in PLC controller 1, PLC controller 1 sends signal, enter out signal relay 2, drive signal relay 2 and obtain instructing the back to switch on, electric current is outputed to solenoid operated directional valve 6, solenoid operated directional valve 6 energising commutations.Cause the left chamber that the pressure oil of this constant pressure variable displacement pump 4 in oil circuit imports solenoid operated directional valve 6 into flows to hydro-cylinder 8, the piston of hydro-cylinder 8 moves right under the effect of left cavity pressure oil, make materials flow valve plate 10 clockwise rotate and open around bearing 9, simultaneously the pointer of connected photoelectric code disk 11 will rotate and the position of material valve will be converted to the pulse signal feedback line and pass PLC controller 1 back, PLC controller 1 compares the position of the need control material flow gate of this signal and former this device of setting, when received signal is consistent with the signal of former setting, PLC controller 1 sends stop signal, driving signal relay 2, to receive stop signal promptly disconnected, solenoid operated directional valve 6 outages, solenoid operated directional valve 6 is resetted, cut off the pressure oil circuit in hydro-cylinder 8 left chambeies, hydro-cylinder 8 stop motions, make materials flow valve plate 10 location, promptly the position of materials flow valve plate 10 is controlled.
When need are closed material valve, PLC controller 1 will check whether time delayed signal exists, whether the positional value of setting is consistent with actual position value, after affirmation meets the demands, PLC controller 1 sends current signal and gives pass signal relay 3, close signal relay 3 electric current is outputed to solenoid operated directional valve 6, solenoid operated directional valve 6 commutations, the pressure oil that constant pressure variable displacement pump 4 is provided flows to hydro-cylinder 8 right chambeies through solenoid operated directional valve 6, hydro-cylinder 8 pistons are done materials flow valve plate 10 to rotate counterclockwise and are closed under the effect of right cavity pressure oil.Close when materials flow valve plate 10 and to put in place, photoelectric code disk 11 sends zero signal, after PLC controller 1 obtains feedback signal, sends shutdown signal, closes signal relay 3 outages, makes solenoid operated directional valve 6 power-off restorations close oil circuit, and material valve is then closed.
In the opening process of material valve, if operating pressure increases suddenly, and constant pressure variable displacement pump 4 is when having little time variable, and surplus valve 5 will be opened, and unnecessary oil mass is got rid of, and make pressure normal.
Claims (1)
1. one kind by PLC controller (1), drive signal relay (2), close signal relay (3), constant pressure variable displacement pump (4), surplus valve (5), solenoid operated directional valve (6), one-way throttle valve (7), the blast furnace bell-less furnace roof materials flow setting device that hydro-cylinder (8) is formed, the PLC controller (1) that it is characterized in that this device with drive signal relay (2) and close signal relay (3) and be connected, the signal of PLC controller (1) enters out the switch of signal relay (2) with pilot circuit, driving signal relay (2) is connected with an end of solenoid operated directional valve (6), closing signal relay (3) is connected with the other end of solenoid operated directional valve (6), solenoid operated directional valve (6) is connected with constant pressure variable displacement pump (4), constant pressure variable displacement pump (4) is connected with surplus valve (5), solenoid operated directional valve (6) and one-way throttle valve (7), one-way throttle valve (7) is connected with hydro-cylinder (8), and the signal that makes PLC controller (1) is by solenoid operated directional valve (6), constant pressure variable displacement pump (4), surplus valve (5) and one-way throttle valve (7) convert the actuating signal of hydro-cylinder (8) to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228373 CN2321784Y (en) | 1998-02-27 | 1998-02-27 | Furnace top material flow regulator for blast furnace without bell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228373 CN2321784Y (en) | 1998-02-27 | 1998-02-27 | Furnace top material flow regulator for blast furnace without bell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2321784Y true CN2321784Y (en) | 1999-06-02 |
Family
ID=33978494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98228373 Expired - Fee Related CN2321784Y (en) | 1998-02-27 | 1998-02-27 | Furnace top material flow regulator for blast furnace without bell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2321784Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244500A (en) * | 2013-04-25 | 2013-08-14 | 无锡艾森保自动化装备有限公司 | Multifunctional hydraulic device |
| CN104694685A (en) * | 2015-02-28 | 2015-06-10 | 北京首钢自动化信息技术有限公司 | System and method for controlling angle of blast furnace throttle valve through redundancy detection |
-
1998
- 1998-02-27 CN CN 98228373 patent/CN2321784Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244500A (en) * | 2013-04-25 | 2013-08-14 | 无锡艾森保自动化装备有限公司 | Multifunctional hydraulic device |
| CN104694685A (en) * | 2015-02-28 | 2015-06-10 | 北京首钢自动化信息技术有限公司 | System and method for controlling angle of blast furnace throttle valve through redundancy detection |
| CN104694685B (en) * | 2015-02-28 | 2017-05-31 | 北京首钢自动化信息技术有限公司 | The redundancy detection control system and its method of a kind of blast furnace throttle valve control angle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |