SU1312526A1 - Programmed control device for mechanisms of charging system of blast furnaces - Google Patents

Abstract

The invention relates to ferrous metallurgy, namely to domain production, and can be used in other industries where a counting unit or program switch to a new fixed position is necessary. The invention allows to increase reliability, simplify maintenance, reduce cycle time. The device comprises a program switching node, a program position node, a program switching control node, and a program set node. The transition of programs to a new position is performed sequentially in a closed loop from 1 to n, then again to the first position, etc. 1 sludge. (L with to from GhE Oi

Description

The invention relates to ferrous metallurgy, namely, to the domain production, and can be used in software systems controlling the mechanisms of the blast furnace loading system.

The purpose of the invention is to increase reliability, simplify maintenance, reduce cycle time.

The drawing shows a diagram of the device.

The device contains a relay 1 pulses with contacts 11 ... 1h; two-position relay 2 command with on 2 and off 2 windings and contacts 2i ... 25; two-position relay 3 blocking with 3 included and 3 breaking windings and with contacts 3 | and 32; two-position relays 4 ... 4 program positions according to the number of program positions with inclusive (4) ... (4) and disconnecting (4 ...) ... (4) windings and contacts 4 ... 4, ... program switch control relay 5 with contacts 5 | ... 5; control element 6; the first device input 7, the second device input 8; a program switch node 9, a program position node 10, a program switch control node 11 and a program set node 12.

The program switching unit 9 includes an Ei se relay of pulses 1, a two-position command relay 2 and a lock relay 3. The program position node 10 includes on-off relays 4, .., 4 program positions and control element 6.

The program switch control node 11 includes a program switch control relay 5.

The transition of programs to a new position is performed sequentially in a closed loop from the first to the n, then again to the first, and so on.

The device works in the following way.

The first input 7 of the device is given a signal at the end of a certain technological cycle of the program and the beginning of the transition to a new fixed position.

From the second input 8 of the device, the signal is removed at the beginning of a new technological cycle.

In the initial position, all relays are de-energized. In order to bring the device into the operating position, the control element 6 is pressed, after which the relay of the 1st position of the program 4 is activated, which with its contact 49 prepares to turn on the winding of the relay of the second position (4).

When a signal is applied to the first input, a pulse 1 relay is turned on, the Iv contact of which turns on the relay 2 (the closing winding circuit 2 closes) and the 2d contact, the switching winding circuit (4) of the 2nd program position relay closes. Relay 4 is turned on. In the relay control circuit 5, a reverse switch; for example, if the phonogram, contact 4+, contact 4 is closed, | also closed for now. Two-position pprs 2, 3, 4, ..., 4 are turned on when applying an impul1) Sno1; signal in the chain including j: .MOTKu and () a flock 1 with closed to those

1312526

five

0

five

0

five

then, until a pulse signal is applied to the circuit of the tripping winding.

Relay 5 trips, closes its contacts

five

0

five

You are 5g and 5 ,, and opens contact 5. The disconnecting winding {4) of the 1st position relay closes and the relay 4 is turned off. The output circuit of the 2nd program position is included in the program set node, consisting of the closing contact 4b of the relay of the 2nd position, the disconnecting contact of the previous relay 4 of the 1st program position and the opening contact 4 | the subsequent relay of the 3rd program position, i.e. this circuit issues a command when all the switchings are completed and the command of the 2nd in this case program position will be issued.

At the same time, the relay 1 of the pulses is turned off, as contact 5z opens. Contact 1z opens, the circuit of the closing winding 3 is closed, the relay 3 is turned on, preparing the circuit of the tripping winding 2 to disconnect the relay 2.

After the start of the new technical cycle and the removal of the signal from the input 8 of the device, the control relay 5 is turned off and prepares the relay circuit 1 for switching on.

When a signal is applied to the input 7 of the device, the program starts moving to the 3rd position. Relay 1 is activated, contact 12 is closed, but since contact 32 is closed and 3i is open, tripping winding 2 turns on and off relay 2. Contacts 22 and 2.1 close. Since the relay 4i is closed, the relay 4 is turned on (the circuit of the turn-on relay of the 3rd program position closes). By appreciating the closed contacts 4 and 4.t, the relay 5 is turned on, the circuit of the tripping winding (4) closes, the relay

the output circuit of the relay the pitch of the contacts 4 |, 4 and

4z is disabled. The deposit is closed. 4.5 3rd position of the program. Relay 1 turns off again after opening contact 5z. Under the action of the disconnecting winding 3, the relay 3 is switched off, preparing the circuit of the switching winding 2 for the subsequent switching on of the relay 2 when switching to the 4th position of the program. Subsequent switchings of the relay at the transition to each subsequent programming are performed similarly to that described. In this case, the closing contact If connects the even-numbered program position relays, and the opening contact 2.1 is connected to the odd-numbered program position relays. After the n-i O position, the program goes back to the 1st position.

Relay 5 control monitors the transition of the program to a new position, connects the tripping windings (4), ... (4) of the position relay and drops the signal from the relay. The circuit from the closing contacts of the relay of positions 41, ... 4.1 in the circuit of relay 5 is constructed in such a way that at the moment of the transfer of the 1-frame to the new position of the switch, only the contacts of the previous and the subsequent positioning relays. This signal is enough.

so that relay 5 triggers and self locks this circuit.

The device differs from the known ones in that it contains simple and reliable in operation relays instead of controllers with direct current electric motors, it meets the task of sequentially switching the program to a new fixed position with issuing the necessary signals to the system of loading mechanisms of the blast furnace.

The device can be used in software devices in other areas of the industry where an account node or a program switch to a new fixed position is necessary.

Claims (1)

The invention of the software control device The first command bus, the power supply bus, is connected via the disconnecting contact of the pulse relay to the combined first terminals of the first closing and first disconnecting contacts of the two-position relay 5 commands, the second terminals of which are connected respectively to the first terminals of the on-and-off two-position interlock, the first terminals of the enabling windings of the odd two-position program position relays are connected to the first output of the second break contact of the two-position command relay via the second closing contacts of the two-position relay; which is connected to the first power bar, the first terminals of the switching windings of the even two-position relays of the prog positions The frames through the second closing contacts of the two-position relay of the previous position are connected by the mechanisms of the domain loading system jn of the program to the first output of the furnaces, which contains the switching unit of the second closing of the two-position contact, the node of program positions and the node relay of the command, the second output of which is different in order to increase reliability, simplify the first output of the two-service turn-on winding, shorten the time of the cycling position relay of the program position, a switch control node is inserted through sequentially connected programs, containing a relay, the second disconnecting contacts of a two-way program switch, the program positioning node of the program, the third program switch with an interrupting contact of the two-position pulse generator command relay and an element of the control of connections, two-position relay of the command and is not connected with the first power supply; This turns the winding-off The program position relays are connected to the first terminal of the first closing contact of the program switching control relay through the third closing contacts of the two-position relay of the subsequent program position, the second output of which is connected to the first power bus, the first output of the program control switch ouMOTKif is connected to the two-position program position relays and a control element, the chains containing the first make contact serially connected are entered into the program set node two-position relay of the given position of the program and the first opening contacts of the two-position relays of the previous and previous positions ||;) (1 | ;; п: ч v; b ;,: ;;;,: tsl; 1zhod device35 to the second terminal of the second closing contact .T (5ii ii (v; iK.: i.4cii unc i noriRf.iki.;,;,;; akktsni 40 that program switching control relay contact pe; ie, coiggl / .ch) ek, 1k; cheni program to the first output of the winding of the relay M.viiy.ibcoii, and through rk-ry closeout.in Konkarg pe: ic imp.chsov - to the nerve tyne nutrition, connected through the second closure contact of the relay with the combined 45 hours of the even two-position relays filled with the first seed signals of the seals (;; for the interlocking and the first disconnecting contacts of the Piltionioinop; jie. ie, ikokiro, and the second terminals of which are connected correspondingly to the first conclusions of the program that includes the program and the program, i.gorye 11OD |,: | Yucieni to the second} the output of the contact pe, je of the switch and to the second input the second terminals of the windings of all The coil winding xp x1 o: 1Idiochnogo re- 50 nony with the second mud power. The first command bus, the power supply bus, is connected via the disconnecting contact of the pulse relay to the combined first terminals of the first closing and first disconnecting contacts of the two-position relay commands, the second terminals of which are connected respectively to the first terminals of the on-off and on-off two-position interlock, the first terminals of the enabling windings of the odd two-position program position relays are connected to the first output of the second disconnecting contact of the two-position command relay via the second closing contacts of the two-position relay; connected to the first power supply terminal, the first terminals of the switching windings of even two-position relays of program positions mms via the second closing contacts of the two output of the second closing contact to the first terminals of the fourth closing contacts of the nonprogrammed two-position relays of the program, the second terminals of which are combined and connected to the first terminals of the fourth closing shunt of the 1st program, whose i.odes are 11OD |,: | } to the output of the second closing contact pe, je counter, 1 switch and to the second input of the device, the second leads of the windings of all the relays are connected to the second power supply. , tJ GTyT