CN202145270U

CN202145270U - Blast furnace molten iron transportation signal connection control circuit

Info

Publication number: CN202145270U
Application number: CN201120273641U
Authority: CN
Inventors: 黎志
Original assignee: Chongqing Iron and Steel Group Co Ltd
Current assignee: Chongqing Iron and Steel Co Ltd
Priority date: 2011-07-29
Filing date: 2011-07-29
Publication date: 2012-02-15
Anticipated expiration: 2021-07-29

Abstract

The utility model discloses a blast furnace molten iron transportation signal connection control circuit, comprising three parallelly connected parallel branches, wherein a normally open control button, a normally closed control button and a relay coil are serially connected with the first parallel branch, two ends of normally open control button are parallelly connected with normally open contacts of the relay, the second parallel branch is formed in such a manner that a molten iron vehicle no-starting indicating lamp is parallelly connected with a molten iron vehicle in place indicating lamp and then is serially connected with the normally open contacts of the relay, the third parallel branch is formed in such a manner that a molten iron vehicle starting-allowing indicating lamp is parallelly connected with the molten iron vehicle in place indicating lamp and then is serially connected with normally closed contacts of the relay, and the three parallelly connected parallel branches are serially connected with an air switch and then connected with a 220V AC power supply to form a control circuit. The circuit structure can guarantee that an operator in front of the furnace and an operator of the molten iron vehicle can simultaneously observe and use, thereby avoiding accidents caused by incomplete information and improving production safety.

Description

Blast-melted encoding transport signals contact control circuit

Technical field

The utility model relates to blast-melted canned transportation, the control circuit of especially blast-melted encoding transport signals contact.

Background technology

What in blast-melted transhipment, carry out usually is " one jar of system ", promptly smelts the molten iron that and is loaded and transported by the hot-metal bottle on the hot-metal car, in the actual shipment process; Many molten iron lines to be set usually work simultaneously, as shown in Figure 1, be the floor map of two molten iron lines; Hot-metal bottle is all in " receiving the iron position " position, be arranged on the swing of putting the iron mouth slip mouth 1 corresponding two molten iron fare A, B, when putting iron; After hot-metal bottle on the A line hot-metal car is filled molten iron; Need swing and slip mouth and put the B line and put iron, the hot-metal car of filling molten iron on the A line reaches the lifting position, and the hot-metal bottle that will fill molten iron hangs away by driving a vehicle; Another hot-metal car that slack tank is housed goes forward to fill up " receiving the iron position " of vacating simultaneously, and the B line also is like this.But when putting iron, the operative employee operative employee other with being positioned at hot-metal car who is positioned at the stokehold be not owing to have clear and definite liaison each other; If in case misoperation occurs, molten iron will come down in torrents in orbit, cause the major accident of device damage and casualties; Though also can be through some easy communication mode contacts; Like intercom, but because site environment is very noisy, the less stable of its work.Therefore for guaranteeing the security when putting iron; Make the operative employee of stokehold know clearly whether swing slide mouth below has hot-metal car; Can the other operative employee of hot-metal car clearly be driven away hot-metal car now, need the blast-melted encoding transport signals contact of design one cover control system.

The utility model content

To the above-mentioned deficiency that prior art exists, the purpose of the utility model is to provide a kind of simple, intuitive, blast-melted encoding transport signals easy to maintenance to get in touch with control circuit.

The technical scheme of the utility model: blast-melted encoding transport signals contact control circuit; It is characterized in that; Comprise three parallel branches that are connected in parallel; On first parallel branch, be connected in series with and often open control knob SB1, normally closed control knob SB2 and relay coil KA1, also be parallel with relay normally open contact K1 at said two ends of often opening control knob SB1, said relay normally open contact K1 is by often opening control knob SB1 and normally closed control knob SB2 control break-make; Said second parallel branch is to be put in place to connect with relay normally open contact K2 after the pilot lamp HG3 parallel connection by hot-metal car No starting pilot lamp HR1 and hot-metal car to constitute again, and said relay normally open contact K2 is closed when relay coil KA1 switches on; Said the 3rd parallel branch is allow to start pilot lamp HG1 and hot-metal car by hot-metal car not put in place to connect with relay normally closed contact K3 after the pilot lamp HR3 parallel connection again and constitute, and said relay normally closed contact K3 breaks off when relay coil KA1 switches on; Connect with air switch QF1 again after described three parallel branch parallel connections, be connected to form control loop with the 220V AC power then.

Further technical scheme, the utility model also comprises four parallel branch parallelly connected with the 3rd parallel branch, said the 4th parallel branch is to be made up of bell push SB5 that is connected in series and electric bell DL1.

With respect to prior art, the utlity model has following beneficial effect:

The blast-melted transhipment control system that the simple circuit configuration of utilizing the utility model has realized supplying simultaneously flushing and casting worker and hot-metal car operative employee to observe, use; Avoided because the obstructed accident that causes of information; Improved the security when producing; And maintenance is also very convenient, has ensured workman's life security.

Description of drawings

Fig. 1 is the floor map of two molten iron lines in the prior art;

Fig. 2 is the circuit theory diagrams of embodiment 1 in the utility model;

Fig. 3 is the circuit theory diagrams of embodiment 2 in the utility model;

Fig. 4 is for being located at the synoptic diagram of the other guidance panel of hot-metal car among the embodiment 2;

Fig. 5 is for being located at the guidance panel synoptic diagram of stokehold among the embodiment 2.

Among the figure, 1-swing slide mouth, 2-A line hot-metal car, 3-B line hot-metal car.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Embodiment 1: as shown in Figure 2; Blast-melted encoding transport signals contact control circuit; Comprise three parallel branches that are connected in parallel; On first parallel branch, be connected in series with and often open control knob SB1, normally closed control knob SB2 and relay coil KA1, also be parallel with relay normally open contact K1 at said two ends of often opening control knob SB1, said relay normally open contact K1 is by often opening control knob SB1 and normally closed control knob SB2 control break-make; Said second parallel branch is to be put in place to connect with relay normally open contact K2 after the pilot lamp HG3 parallel connection by hot-metal car No starting pilot lamp HR1 and hot-metal car to constitute again, and the said relay normally open contact K2 that continues is closed when relay coil KA1 switches on; Said the 3rd parallel branch is allow to start pilot lamp HG1 and hot-metal car by hot-metal car not put in place to connect with relay normally closed contact K3 after the pilot lamp HR3 parallel connection again and constitute, and said relay normally closed contact K3 breaks off when relay coil KA1 switches on; Connect with air switch QF1 again after described three parallel branch parallel connections, be connected to form control loop with the 220V AC power then.The utility model also comprises four parallel branch parallelly connected with the 3rd parallel branch, and said the 4th parallel branch is to be made up of bell push SB5 that is connected in series and electric bell DL1.

Principle of work: after the energising, closed air switch QF1, because relay normally closed contact K3 is normally closed, therefore the 3rd parallel branch is communicated with, pilot lamp HG1, HR3 are lighted.

If press control knob SB1, it is electric to make that relay coil KA1 gets, and relay normally open contact K2 is closed; Relay normally closed contact K3 breaks off, and makes first parallel branch, second parallel branch keep continuing to be communicated with, and the 3rd parallel branch is broken off; Pilot lamp HR1, HG3 are bright, and pilot lamp HG1, HR3 go out.

Then, if press control knob SB2, will make relay coil KA1 dead electricity; Relay normally open contact K2 breaks off, and relay normally closed contact K3 is closed, makes the parallel branch of winning, second parallel connection disconnection; The 3rd parallel branch is closed, and pilot lamp HR1, HG3 go out, and pilot lamp HG1, HR3 light.

If press control knob SB5, electric bell DL1 connects bell ring.

Embodiment 2: as shown in Figure 3; Be on the basis of embodiment 1, be provided with A, two molten iron transhipments of B circuit, the i.e. circuit of parallelly connected again one group of same structure in the circuit structure of embodiment 1; Its principle of work is identical with embodiment 1; Can satisfy like this when the hot-metal car on the line does not put in place, the hot-metal car on another line can load, and makes shipment uninterrupted.Simultaneously; Also on each pilot lamp all parallel connection an identical pilot lamp; Can prevent like this when some pilot lamp damage and to learn concrete duty, avoid influencing the molten iron transhipment, and made things convenient for on-call maintenance owing to pilot lamp damages.

Referring to Fig. 4, HR1, HR2 are the hot-metal car No starting pilot lamp of A line; The hot-metal car that HG1, HG2 are the A line allows to start pilot lamp; SB1 is the hot-metal car of the A line control knob that puts in place; HR5, HR6 are the hot-metal car No starting pilot lamp of B line; HG5, HG6 are that the hot-metal car of B line allows to start pilot lamp; SB3 is the hot-metal car of the B line control knob that puts in place; SB5 is the electric bell control knob of the other operative employee's control panel of hot-metal car.

Referring to Fig. 5, the hot-metal car that HR3, HR4 are the A line pilot lamp that do not put in place; The hot-metal car that HG3, HG4 are the A line pilot lamp that puts in place; SB2 is that the hot-metal car of A line allows the start-up control button; HR7, HR7 are the hot-metal car of the B line pilot lamp that do not put in place; HG7, HG8 are the hot-metal car of the B line pilot lamp that puts in place; SB4 is that the hot-metal car of B line allows the start-up control button; SB6 is the electric bell control knob of the control panel in face of the flushing and casting worker.

Circuit in Fig. 3 is connected, and sky is opened QF1 when closed, and hot-metal car allows to start do not put in place pilot lamp HR3, HR4, HR7, HR8 of pilot lamp HG1, HG2, HG5, HG6 and hot-metal car and all lights.After if hot-metal car arrives the water receiving position of A line; The hot-metal car operative employee can press the button SB1, and this moment, put in place pilot lamp HG3, HG4 of hot-metal car No starting pilot lamp HR1, HR2 and hot-metal car all lighted, and expression can be packed molten iron in the hot-metal bottle of A line hot-metal car into; Even this moment, the hot-metal car operative employee pressed the button SB1 once more; Because the power failure state that gets of relay coil does not change, relay normally open, normally closed contact do not change the open and close state, and signal will can not change; Must wait until that the flushing and casting worker sends signal, the indication of circuit signal just can change.After the hot-metal car on the A line was filled molten iron, the flushing and casting worker can press the button SB2, and hot-metal car allow to start do not put in place pilot lamp HR3, HR4 of pilot lamp HG1, HG2 and hot-metal car and lighted once more this moment; The hot-metal car of expression A line can transport molten iron; Even this moment, the flushing and casting worker pressed the button SB2 once more, the signal of demonstration can not change, must wait until that the hot-metal car operative employee sends signal after; The signal indication just can change, and can avoid producing maloperation like this.When next hot-metal car prepares slack tank, and hot-metal car is left after " receiving the iron position ", the hot-metal car operative employee can press the button SB1 once more, gets back to abovementioned steps, realizes cycling.In the whole operation process, if maloperation, the operative employee can grow the SB5 that touches the button, and sends warning through electric bell, prevents that mishap from taking place.

When operation B line, method is identical with aforesaid operations.

The control circuit simple, intuitive of the utility model, easy to maintenance can provide safeguard for the safety transhipment of molten iron.

Need to prove at last; Above embodiment is only in order to technical scheme but not the restriction technologies scheme of explanation the utility model; Although the applicant specifies the utility model with reference to preferred embodiment, those of ordinary skill in the art should be appreciated that those modifications that technical scheme of the utility model is carried out perhaps are equal to replacement; And do not break away from the aim and the scope of present technique scheme, all should be encompassed in the middle of the claim scope of the utility model.

Claims

1. blast-melted encoding transport signals contact control circuit; It is characterized in that; Comprise three parallel branches that are connected in parallel; On first parallel branch, be connected in series with and often open control knob SB1, normally closed control knob SB2 and relay coil KA1, also be parallel with relay normally open contact K1 at said two ends of often opening control knob SB1, said relay normally open contact K1 is by often opening control knob SB1 and normally closed control knob SB2 control break-make; Said second parallel branch is to be put in place to connect with relay normally open contact K2 after the pilot lamp HG3 parallel connection by hot-metal car No starting pilot lamp HR1 and hot-metal car to constitute again, and said relay normally open contact K2 is closed when relay coil KA1 switches on; Said the 3rd parallel branch is allow to start pilot lamp HG1 and hot-metal car by hot-metal car not put in place to connect with relay normally closed contact K3 after the pilot lamp HR3 parallel connection again and constitute, and said relay normally closed contact K3 breaks off when relay coil KA1 switches on; Connect with air switch QF1 again after described three parallel branch parallel connections, be connected to form control loop with the 220V AC power then.

2. blast-melted encoding transport signals contact control circuit according to claim 1 is characterized in that also comprise four parallel branch parallelly connected with the 3rd parallel branch, said the 4th parallel branch is to be made up of bell push SB5 that is connected in series and electric bell DL1.