CN214920321U

CN214920321U - Automatic cutting and marking device for continuous casting intermediate billet

Info

Publication number: CN214920321U
Application number: CN202120324962.8U
Authority: CN
Inventors: 曹振兴; 李小勇; 张耿
Original assignee: Shanxi Jinnan Iron and Steel Group Co Ltd
Current assignee: Shanxi Jinnan Iron and Steel Group Co Ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-11-30
Anticipated expiration: 2031-02-04

Abstract

The utility model provides an automatic cutting and marking device for continuous casting intermediate billets, which comprises a programmable logic controller, a spraying and marking unit, a flame cutting unit, an input switch and an LED lamp; the device realizes the collection of the casing tube replacement time through the input switch; the programmable logic controller calculates the initial and end positions of the billet when the sleeve is replaced by the sleeve replacing time, controls the spraying marking unit to accurately mark the billet, and controls the flame cutting unit to cut the inferior billet in the two spraying marks; in addition, the programmable logic controller controls the LED lamp to prompt the replacement state, reminds a producer that the sleeve needs to be replaced when the LED lamp is normally on, reminds the producer that the sleeve is being replaced when the LED lamp flickers, and therefore the problem that the quality of the steel billet is difficult to guarantee due to the fact that the length of the continuous casting machine is estimated accurately when the sleeve is replaced by the continuous casting machine can be solved.

Description

Automatic cutting and marking device for continuous casting intermediate billet

Technical Field

The utility model relates to a continuous casting equipment technical field especially relates to an automatic mark device of tailorring of base in middle of continuous casting.

Background

With the increasing production scale and demand of the steel industry in China, the adoption of the continuous casting process is becoming more and more extensive. The production process comprises the following steps: continuously pouring high-temperature molten steel into a water-cooled copper crystallizer, gradually solidifying the molten steel along the periphery of the crystallizer to form a steel billet, drawing out the steel billet through a withdrawal and straightening machine after the steel billet is solidified to a certain thickness, cooling the steel billet through a secondary cooling area to completely cool and solidify the steel billet, and cutting the steel billet through cutting equipment according to the required standard steel billet length. The production process simplifies the production process of the steel billet, effectively improves the production efficiency, reduces the waste of molten steel, solves the energy consumption and greatly reduces the production cost. The equipment capable of realizing the continuous casting process is called a continuous casting machine, a molten steel inlet of the continuous casting machine is communicated with a copper crystallizer through a sleeve, and meanwhile, the joint of the sleeve and the copper crystallizer is covered by covering slag. The sleeve is made of quartz, aluminum zirconium carbon or full-zirconium materials, the service life is only 4-6 hours due to the fact that high-temperature molten steel is in contact with the sleeve, and the sleeve needs to be replaced when the service life reaches the limit; in the replacement process, the high-temperature molten steel is still normally poured into the copper crystallizer. In the production process, the control of the service life of the sleeve by production personnel completely depends on manual monitoring, so that the phenomenon that the service life of the sleeve is over-prolonged due to personnel shift or other human factors is easily caused, and the purity of a steel billet is influenced; meanwhile, when the sleeve is replaced, the casting powder at the molten steel inlet of the copper crystallizer is easy to fall into the molten steel to introduce impurities into the steel billet, the poor-quality steel billet section needs to be cut off at the later stage to ensure the quality of the steel billet, but the cutting length is completely estimated manually, the accuracy is extremely low, and the quality of the steel billet cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

For solving the defects and shortcomings of the prior art, the automatic cutting and marking device for the continuous casting intermediate billet is provided, so that the problem that the quality of the billet is difficult to guarantee due to the fact that the continuous casting machine is long in sleeve replacement and the length prediction is inaccurate can be solved.

For realizing the utility model aims at providing a pair of automatic mark device of tailorring of base in middle of continuous casting, including programmable logic controller, spraying mark unit, flame cutting unit, input switch and LED lamp, programmable logic controller's input interface and input switch are connected, realize the collection of signal, and output interface is connected with spraying mark unit, flame cutting unit respectively, realizes programmable logic controller to spraying mark unit, flame cutting unit's control, and the external equipment interface is connected with the LED lamp.

As a further improvement of the scheme, the LED lamp can realize two states of constant lighting or flickering.

As a further improvement of the proposal, the spraying marking unit comprises a track, a sliding shell, a motor, a pulley, a nozzle, a circuit arc-shaped protection tube, a spraying pigment conveying pipe and a limiting block, the track is in an I-shaped structure and has the same upper and lower width, the middle shaft of the pulley is contacted with the upper and lower outer surfaces of the track, the limiting wheels at the two ends of the middle shaft of the pulley are matched with the inner wall of the sliding shell through shaft holes to realize fixation, the motors are fixed on the outer surface of the upper part of the sliding shell, the nozzle is fixed on the outer surface of the lower part of the sliding shell, a circuit arc-shaped protection pipe is arranged between the two motors, a power supply circuit is arranged in the circuit arc-shaped protection pipe, a spraying pigment conveying pipe is arranged between the two nozzles, the spraying pigment conveying pipe is communicated with an external spraying pigment pool, and two limiting blocks are symmetrically arranged on the lower portion of the track.

As a further improvement of the scheme, the fireproof cloth is wound on the outer wall of the circuit arc-shaped protection pipe so as to avoid damage of high temperature to a power supply line.

The utility model has the advantages that:

compared with the prior art, the utility model provides an automatic cutting and marking device for continuous casting intermediate billets, which realizes the collection of the casing pipe replacement time through the input switch, thereby obtaining the average value of the casing pipe replacement time; the programmable logic controller calculates the initial and end positions of the billet when the sleeve is replaced by the sleeve replacing time, controls the spraying marking unit to accurately mark the billet, and controls the flame cutting unit to cut the inferior billet in the two spraying marks; in addition, the programmable logic controller controls the LED lamp to prompt the replacement state, reminds a producer that the sleeve needs to be replaced when the LED lamp is normally on, reminds the producer that the sleeve is being replaced when the LED lamp flickers, and therefore the problem that the quality of the steel billet is difficult to guarantee due to the fact that the length of the continuous casting machine is estimated accurately when the sleeve is replaced by the continuous casting machine can be solved.

Drawings

FIG. 1 is a schematic view of the apparatus of the present invention;

FIG. 2 is a schematic view of the apparatus of the present invention;

FIG. 3 is a schematic view of the connection between a copper crystallizer and a casing in the prior art;

FIG. 4 is a schematic view of a spray marking unit according to the present invention;

fig. 5 is a cross-sectional view of a spray marking unit according to the present invention;

fig. 6 is a sectional view a-a of the painting mark unit of the present invention.

Wherein: 1-programmable logic controller, 2-spraying marking unit, 3-flame cutting unit, 4-input switch, 5-LED lamp, 6-immersion nozzle, 7-sleeve, 8-casting powder, 9-copper crystallizer, 10-billet, 11-withdrawal straightening machine, 201-track, 202-sliding shell, 203-motor, 204-pulley, 205-nozzle, 206-circuit arc protection tube, 207-spraying pigment conveying tube, 208-limiting block.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings,

as shown in fig. 1 to 6, an automatic cutting and marking device for a continuous casting intermediate billet comprises a programmable logic controller 1, a spraying marking unit 2, a flame cutting unit 3, an input switch 4 and an LED lamp 5, wherein an input interface of the programmable logic controller 1 is connected with the input switch 4 to realize signal acquisition, an output interface is respectively connected with the spraying marking unit 2 and the flame cutting unit 3 to realize control of the spraying marking unit 2 and the flame cutting unit 3 by the programmable logic controller 1, an external device interface is connected with the LED lamp, wherein the spraying marking unit 2) comprises a rail 201, a sliding housing 202, a motor 203, a pulley 204, a nozzle 205, a circuit arc protection tube 206, a spraying pigment delivery tube 207 and a limiting block 208, the rail 201 is of an i-shaped structure and has the same vertical width, and a central axis of the pulley 204 is connected with an upper part, a lower part, and an upper part of the rail 201, The contact of outer surface down, the spacing wheel at pulley 204 axis both ends passes through the shaft hole cooperation with the inner wall of slip casing 202 and realizes fixing, motor 203 is fixed in the upper portion surface of slip casing 202, nozzle 205 is fixed in the lower part surface of slip casing 202, two be provided with circuit arc protection tube 206 between the motor 203, the power supply line has been arranged in the circuit arc protection tube 206, the outer wall winding fire prevention cloth of circuit arc protection tube 206 to avoid the destruction of high temperature to the power supply line, two be provided with spraying pigment conveyer pipe 207 between the nozzle 205, spraying pigment conveyer pipe 207 communicates with external spraying pigment pond, the lower part symmetry of track 201 is provided with two stopper 208, in order to realize restricting the extreme position of slip casing 202 and pulley 204.

The utility model provides a pair of automatic mark device of tailorring of base in middle of continuous casting, its principle as follows:

1. collecting the replacement time t of the sleeve 7, pressing the input switch 4 at the beginning and the end of the replacement, confirming the replacement time by counting the action interval time of the input switch 4, collecting the replacement time more than 30 times, and calculating the average value t of the replacement time₀。

2. When the programmable logic controller 1 recognizes that the service life of the sleeve 7 reaches 5h, the speed of the tension leveler 11 is upsilon₀The total length of the billet 10

L＝υ·3600·5

When the required length of the standard billet is L_mNumber of standard billets

When n is an integer, the programmable logic controller 1 controls the LED lamp 5 to be normally on, and production personnel are reminded to replace the sleeve 7; when n is a non-integer, the programmable logic controller 1 does not act, and when n is an integer, the LED lamp 5 is controlled to be normally on to remind a producer to replace the sleeve 7; in addition, in the process of replacing the sleeve 7, the programmable logic controller 1 controls the LED lamp 5 to flicker to remind production personnel that the sleeve 7 is being replaced.

3. When the sleeve 7 begins to be replaced, the speed of the withdrawal and straightening unit 11 is adjusted to be upsilon₁The length of the billet between the billet outlet of the copper crystallizer 9 and the spraying marking unit 2 is L_pDelay of the spraying time of the spraying marking unit 2

Namely: the programmable logic controller 1 delays the spraying time t₁Then controls the spraying marking unit 2 to perform the first spraying action and then passes through the time t₀Then, a second spraying action is carried out, and the steel billet between the two spraying actions is the inferior steel billet generated by the replacement of the sleeve 7;

the length of the steel billet between the copper crystallizer 9 and the flame cutting unit 3 is L₁The delay cutting time of the flame cutting unit 3

That is, the programmable logic controller 1 passes the delay cutting time t₂Then controlling the flame cutting unit 3 to perform the first cutting action and then performing the first cutting action for a time t₀And then, carrying out a second cutting action, wherein the billet between the two times of cutting is the inferior billet generated by replacing the sleeve 7.

The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other into a new embodiment. The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. The utility model provides an automatic mark device of tailorring of continuous casting intermediate billet which characterized in that: the LED lamp is characterized by comprising a programmable logic controller (1), a spraying marking unit (2), a flame cutting unit (3), an input switch (4) and an LED lamp (5), wherein an input interface of the programmable logic controller (1) is connected with the input switch (4) to realize signal acquisition, an output interface is respectively connected with the spraying marking unit (2) and the flame cutting unit (3) to realize the control of the programmable logic controller (1) on the spraying marking unit (2) and the flame cutting unit (3), and an external equipment interface is connected with the LED lamp.

2. The automatic cutting and marking device for the continuous casting intermediate billet according to the claim 1 is characterized in that: the LED lamp (5) can realize two states of normal lighting or flickering.

3. The automatic cutting and marking device for the continuous casting intermediate billet according to the claim 1 is characterized in that: the spraying marking unit (2) comprises a rail (201), a sliding shell (202), a motor (203), a pulley (204), nozzles (205), a circuit arc-shaped protection pipe (206), a spraying pigment conveying pipe (207) and a limiting block (208), wherein the rail (201) is of an I-shaped structure, the upper width and the lower width of the rail are consistent, a middle shaft of the pulley (204) is in contact with the upper outer surface and the lower outer surface of the rail (201), the limiting wheels at the two ends of the middle shaft of the pulley (204) are matched with the inner wall of the sliding shell (202) through shaft holes to realize fixation, the motor (203) is fixed on the upper outer surface of the sliding shell (202), the nozzles (205) are fixed on the lower outer surface of the sliding shell (202), the circuit arc-shaped protection pipe (206) is arranged between the two motors (203), a power supply line is arranged in the circuit arc-shaped protection pipe (206), and the spraying pigment conveying pipe (207) is arranged between the two nozzles (205), the spraying pigment conveying pipe (207) is communicated with an external spraying pigment pool, and two limiting blocks (208) are symmetrically arranged on the lower portion of the track (201).

4. The automatic cutting and marking device for the continuous casting intermediate billet according to the claim 3 is characterized in that: the outer wall of the circuit arc-shaped protection tube (206) is wound with fireproof cloth so as to avoid damage of high temperature to a power supply line.