CN201342483Y

CN201342483Y - Hot continuous casting slab tracking device

Info

Publication number: CN201342483Y
Application number: CNU2008202318019U
Authority: CN
Inventors: 于纪勇; 王伟; 黄金霞
Original assignee: AUTOMATION Co OF ANGANG GROUP
Current assignee: Anshan Iron and Steel Group Automation Co., Ltd.
Priority date: 2008-12-18
Filing date: 2008-12-18
Publication date: 2009-11-11
Anticipated expiration: 2018-12-18

Abstract

The utility model relates to a hot continuous casting slab tracking device, comprising a PLC programmable controller, a detecting probe, an insulating base and a relay set, wherein the PLC programmable controller is connected with the relay set; the relay set comprises a 1# relay and a 2# relay, wherein the 1# relay is connected with the detecting probe, and the detecting probe is connected with the insulating base; and the 2# relay is connected with the 1# relay; the detecting probe is also connected with a power supply. The device is applied to an external-cooling roll table of a solid conveying roller for hot slab tracking. The utility model reduces the labor intensity of site working staff, lowers the operation and maintenance costs, improves the practicability, the running stability and the expansibility of a system, truly realizes the automatic control of the slab conveying, and can detect the object location in wetting condition below 1,000 DEG C.

Description

Continuous casting hot slab tracking means

Technical field

The utility model relates to a kind of continuous casting hot slab tracking means.

Background technology

In continuous casting is produced, need follow the tracks of processing at present to the hot base that casting machine is pulled out.But the detecting element polytype of following the tracks of according to the difference of rollgang is as earthed switch, photoelectric tube, metal detector etc.So can adopt any one tracer element in inside owing to its cooling water for hollow rollgang.But hollow rollgang reduces its service life, so will use solid conveying roller sometimes because uneven can the generation of being heated is out of shape.When using solid roll, it cool off by the interior cold external cooling that become, and has produced aqueous vapor around having caused roller, and makes photoelectric tube etc. by the element that light detects, and produces error or can't use at all, and be used to have water to cause short circuit also can't use on the earthed switch of using always.

Summary of the invention

The purpose of this utility model provides that a kind of cost is low, stability and security is good, be difficult for producing the continuous casting hot slab tracking means of signal disturbance.

For achieving the above object, the utility model is achieved through the following technical solutions:

Continuous casting hot slab tracking means, this device comprises PLC Programmable Logic Controller, detection probe, insulator foot, relay group, and the PLC Programmable Logic Controller connects the relay group, and the relay group comprises 1# relay and 2# relay, the 1# relay connects detection probe, and detection probe connects insulator foot; The 2# relay connects the 1# relay, and detection probe also connects power supply.

The advantage of the utility model continuous casting hot slab tracking means is: operation expense is low, does not need frequent maintain and replace equipment, can be in humidity, carry out the detection of slab under the hot conditions, can not reduce maintenance workload, improve production operational availability owing to aqueous vapor produces signal disturbance.

Description of drawings

Fig. 1 is a structured flowchart of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in detail:

See Fig. 1, continuous casting hot slab tracking means, this device comprises PLC Programmable Logic Controller, detection probe, insulator foot, relay group, device serves as the control core with the PLC Programmable Logic Controller, the PLC Programmable Logic Controller connects the relay group, the relay group comprises 1# relay and 2# relay, and the 1# relay connects detection probe, and detection probe connects insulator foot; The 2# relay connects the 1# relay, and detection probe also connects power supply.

The utility model continuous casting hot slab tracking means is installed in detection probe two conveying rollers centres and passes to the 24V dc source, when hot base is pressed onto detection probe, make detection probe ground connection produce a pressure reduction activation 1# relay and make its closure, a level signal of PLC Programmable Logic Controller is sent in generation, activating the 2# relay then cuts off the 1# relay and carries out signal by an electric current and keep, when slab leaves detection probe, keeping electric current is reduced to when being not enough to keep the 2# relay, the 2# relay disconnects the level signal that is sent to the PLC Programmable Logic Controller and disappears, and finishes a testing process.

Claims

1, continuous casting hot slab tracking means, it is characterized in that, this device comprises PLC Programmable Logic Controller, detection probe, insulator foot, relay group, the PLC Programmable Logic Controller connects the relay group, the relay group comprises 1# relay and 2# relay, the 1# relay connects detection probe, and detection probe connects insulator foot; The 2# relay connects the 1# relay, and detection probe also connects power supply.