Blast furnace stokehole residual iron hole monitoring device

Abstract

The utility model discloses a blast furnace stokehole residual iron hole monitoring device which comprises a ditch body, a residual iron hole is formed in the side wall of the bottom of the ditch body, a blocking material is filled in the residual iron hole, a pipe body is embedded in the blocking material, a thermocouple is inserted into the pipe body, the top end of the thermocouple abuts against the blocking material, and the top end of the thermocouple abuts against the blocking material. The tail end of the thermocouple is located outside the residual iron hole and the pipe body, the thermocouple is electrically connected with a controller, and the controller is electrically connected with an alarm unit. According to the blast furnace stokehole residual iron hole monitoring device disclosed by the utility model, the thermocouple is arranged in the blocking material, and the temperature of the blocking material is detected in real time through the thermocouple, so that the corrosion degree of the blocking material in the residual iron hole can be judged according to the temperature of the blocking material, and furthermore, a worker can conveniently discharge residual iron in time for treatment; and safety accidents caused by the fact that molten iron is burnt out from the residual iron holes are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to blast furnace front residual iron eye monitoring devices technical field, especially to a kind of blast furnace front residual iron eye monitoring devices. BACKGROUND

[0002] Blast furnace front is provided with main ditch of molten iron, ridge ditch, slag ditch, residual iron ditch, each ditch is cast by refractory material. When tapping, to realize the separation of molten iron and slag, main ditch is provided with skimmer, skimmer is disclosed in Chinese patent No.201210281607.2, mainly by setting beam on ditch body, and then using the different density of slag and iron, the density of molten iron is large, the density of slag is small, the characteristics that slag floats above molten iron, so that when passing through skimmer, slag is blocked in front of beam, enters slag ditch, and molten iron passes through beam from the lower side of beam, enters the rear side of skimmer, and then flows into iron ditch, so that the separation of molten iron and slag is realized.

[0003] The bottom side wall of the ditch body behind the beam of skimmer is provided with residual iron eye, and residual iron eye is used as slag discharge channel. When the erosion of refractory material in ditch body reaches a certain degree, the refractory material in ditch body needs to be recast, residual iron eye needs to be opened, and slag and iron in ditch body are cleaned. After recasting refractory material in ditch body, residual iron eye needs to be blocked by casting material or ramming material, and then tapping can be resumed. Residual iron eye is located on skimmer, and is not integrally cast with main ditch, so it is the weakest part of the whole main ditch in front of furnace. During use, residual iron eye is easily burned through from residual iron eye with the erosion of molten iron, causing safety accidents. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of blast furnace front residual iron eye monitoring devices.

[0005] The technical scheme for realizing the utility model is as follows: a kind of blast furnace front residual iron eye monitoring devices, including ditch body, residual iron eye is opened in the bottom side wall of ditch body, and the residual iron eye is filled and blocked with blocking material, the pipe body is embedded in the blocking material, the length direction of pipe body is consistent with the length direction of blocking material, the pipe body is located at one end side of residual iron eye close to the outer wall of ditch body, the first end of pipe body is located in the blocking material, the second end of pipe body is located outside the blocking material, the thermocouple is inserted into the pipe body, the top end of thermocouple is in contact with the blocking material, and the tail end of thermocouple is located outside residual iron eye and pipe body, the thermocouple is electrically connected with a controller, and the controller is electrically connected with an alarm unit.

[0006] Further, the length of the pipe body is not less than 50 cm. To avoid the signal that the blocking material in the residual iron eye is burned through early being detected, time for opening the residual iron eye is reserved, preferably, the length of the pipe body is not less than 50 cm.

[0007] Further, a dowel is arranged in the second end of the pipe body, the dowel is located between the thermocouple and the pipe body, and the thermocouple, the dowel and the pipe body are fastened to each other. The arrangement of the dowel can fix the thermocouple and avoid loosening of the thermocouple.

[0008] Further, the blocking material is castable or ramming material.

[0009] Further, the controller is an MCU controller or a PLC controller.

[0010] Further, the alarm unit is an alarm bell or an alarm lamp.

[0011] The blast furnace forehearth residual iron hole monitoring device of the utility model, the thermocouple is arranged in the blocking material, the temperature of the blocking material is detected in real time through the thermocouple, so that according to the temperature of the blocking material, the corrosion degree of the blocking material in the residual iron hole can be judged, and then the staff can timely put residual iron for processing, and molten iron is prevented from being burned out from the residual iron hole and causing a safety accident. Moreover, after the thermocouple and the alarm unit are electrically connected with the controller, not only can the corrosion degree of the blocking material in the residual iron hole be automatically judged through the controller, but also when the corrosion degree of the blocking material in the residual iron hole is high, the controller can automatically control the alarm unit to issue an alarm, so that the staff can timely put residual iron for processing, the judgment of the corrosion degree in the blocking material and the limit alarm are fully automated, the intelligent degree is high, and manual labor is reduced.

[0012] In addition, the blast furnace forehearth residual iron hole monitoring device of the utility model, the pipe body is embedded in the blocking material, and then the thermocouple is inserted into the pipe body to detect the temperature of the blocking material. Compared with directly burying the thermocouple in the blocking material, after the thermocouple is inserted into the pipe body embedded in the blocking material, on the one hand, the thermocouple does not need to be filled and pressed into the residual iron hole together with the blocking material, and the thermocouple will not be easily damaged by extrusion of the blocking material whether in the filling and pressing process or after the filling and pressing are completed; on the other hand, the thermocouple inserted into the pipe body is convenient to install and remove, especially when the corrosion degree of the blocking material in the residual iron hole is high, the staff can take out the thermocouple from the pipe body, and then open the residual iron hole when putting residual iron for processing, so as to avoid damage to the thermocouple during the opening process of the residual iron hole, so that the thermocouple can be reused, the service life of the thermocouple can be greatly prolonged, and the utilization rate of the thermocouple can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the blast furnace forehearth residual iron hole monitoring device of the utility model;

[0014] Figure 2 Figure 1 is a partial structure schematic view of the blast furnace foreman residual iron eye monitoring device of the present application;

[0015] Figure 3 Figure 4 is a control structure view of the blast furnace foreman residual iron eye monitoring device of the present application. DETAILED DESCRIPTION

[0016] The preferred embodiment of the blast furnace foreman residual iron eye monitoring device of the present application will be described in detail below with reference to the accompanying drawings:

[0017] As shown in Figure 1 to Figure 3 A blast furnace foreman residual iron eye monitoring device, comprising a ditch body 1, a residual iron eye 2 is formed on the side wall of the bottom of the ditch body 1, a blocking material 3 is filled in the residual iron eye 2, a pipe body 4 is embedded in the blocking material 3, the length direction of the pipe body 4 is consistent with the length direction of the blocking material 3, the pipe body 4 is located at one end of the residual iron eye 2 close to the outer wall of the ditch body 1, the first end 41 of the pipe body 4 is located in the blocking material 3, the second end 42 of the pipe body 4 is located outside the blocking material 3, a thermocouple 5 is inserted into the pipe body 4, the top end 51 of the thermocouple 5 is in contact with the blocking material 3, the tail end 52 of the thermocouple 5 is located outside the residual iron eye 2 and the pipe body 4, the thermocouple 5 is electrically connected with a controller 6, and the controller 6 is electrically connected with an alarm unit 7.

[0018] The blast furnace foreman residual iron eye monitoring device of the present application, the ditch body 1 is part of the main ditch and is used for tapping; the residual iron eye 2 is arranged on the side wall of the bottom of the ditch body 1, and when the erosion of the refractory material in the ditch body 1 reaches a certain degree, the residual iron eye is used to open the eye to clean the slag iron in the ditch body; the blocking material 3 blocks the residual iron eye 2, so that the ditch body 1 can normally tap; the pipe body 4 is used to form an insertion channel of the thermocouple 5; and the thermocouple 5 is used to monitor the temperature in the residual iron eye 2.

[0019] The blast furnace foreman residual iron eye monitoring device of the present application, the molten iron is tapped from the ditch body 1; during the tapping process, when the erosion of the refractory material in the ditch body 1 reaches a certain degree, the blocking material 3 is poked to open the residual iron eye, and after the residual slag iron in the ditch body 1 is discharged, the refractory material of the ditch body 1 is repaired by recasting; after the refractory material in the ditch body 1 is recast, the blocking material 3 is filled again to block the opened residual iron eye.

[0020] The utility model discloses a blast furnace residual iron eye monitoring device before furnace, in the process of the ditch body 1 tapping, thermocouple 5 real -time detection the temperature of the blockage 3 to send the temperature of the blockage 3 of detection to the controller 6, the controller 6 judges the corrosion degree of the blockage 3 in residual iron eye 2 according to the temperature of the blockage 3 of detection, and control alarm unit 7, as with the continuous tapping, the corrosion degree of the blockage 3 in residual iron eye 2 gradually increases, and the temperature of the blockage 3 of real -time detection thermocouple 5 also gradually rises, when the temperature of the blockage 3 is higher than the set value of controller 6, the corrosion degree of the blockage 3 in residual iron eye 2 is higher, and the controller 6 controls alarm unit 7 and sends out the alarm, so that the staff can handle residual iron in time, prevent the molten iron and burn out.

[0021] The utility model discloses a blast furnace residual iron eye monitoring device before furnace, in the process of the ditch body 1 tapping, thermocouple 5 real -time detection the temperature of the blockage 3 to send the temperature of the blockage 3 of detection to the controller 6, the controller 6 judges the corrosion degree of the blockage 3 in residual iron eye 2 according to the temperature of the blockage 3 of detection, and control alarm unit 7, as with the continuous tapping, the corrosion degree of the blockage 3 in residual iron eye 2 gradually increases, and the temperature of the blockage 3 of real -time detection thermocouple 5 also gradually rises, when the temperature of the blockage 3 is higher than the set value of controller 6, the corrosion degree of the blockage 3 in residual iron eye 2 is higher, and the controller 6 controls alarm unit 7 and sends out the alarm, so that the staff can handle residual iron in time, prevent the molten iron and burn out.

[0022] In addition, the blast furnace residual iron hole monitoring device has the advantages that the pipe body 4 is embedded in the blocking material 3, and then the thermocouple 5 is inserted into the pipe body 4, so that the temperature of the blocking material 3 can be detected. Compared with directly burying the thermocouple 5 in the blocking material 3, the thermocouple 5 is inserted into the pipe body 4 embedded in the blocking material 3, on the one hand, the thermocouple 5 does not need to be filled and pressed into the residual iron hole 2 together with the blocking material 3, and no matter in the filling and pressing process or after the filling and pressing is completed, the thermocouple 5 will not be easily damaged due to extrusion of the blocking material 3; on the other hand, the thermocouple 5 inserted into the pipe body 4 is convenient to install and take out, especially when the corrosion degree of the blocking material 3 in the residual iron hole 2 is high, the thermocouple 5 can be taken out from the pipe body 4, and then the residual iron hole 2 is opened, so that the thermocouple 5 is not damaged during the opening process of the residual iron hole 2, so that the thermocouple 5 can be reused, the service life of the thermocouple 5 can be greatly prolonged, and the utilization rate of the thermocouple 5 is improved.

[0023] Preferably, the length of the pipe body 4 is not less than 50 cm. In order to avoid the signal that the blocking material 3 in the residual iron hole 2 is quickly burned through being detected in advance, time for opening the residual iron hole 2 is reserved, and preferably, the length of the pipe body 4 is not less than 50 cm.

[0024] Preferably, the second end 42 of the pipe body 4 is provided with a tenon 8, the tenon 8 is located between the pipe body 4 and the thermocouple 5, and the thermocouple 5, the tenon 8 and the pipe body 4 are mutually fastened. The tenon 8 can fix the thermocouple 5 and avoid loosening of the thermocouple 5.

[0025] Preferably, the blocking material 3 is castable or ramming material.

[0026] The blast furnace residual iron hole monitoring device has the advantages that the controller 6 is an MCU controller or a PLC controller.

[0027] The blast furnace residual iron hole monitoring device has the advantages that the alarm unit 7 is an alarm bell or an alarm lamp.

[0028] The blast furnace residual iron hole monitoring device has the advantages that the controller 6 is an MCU controller or a PLC controller.

Claims

1. A blast furnace forehearth cinder eye monitoring device, comprising a ditch body, a cinder eye is formed on the sidewall of the bottom of the ditch body, and the cinder eye is filled with a blocking material, characterized in that: The plug-in embedded pipe body is consistent with the length direction of the plug, the pipe body is located at one end of the residual eye close to the outer wall of the groove body, the first end of the pipe body is located in the plug, the second end of the pipe body is located outside the plug, a thermocouple is inserted into the pipe body, the top end of the thermocouple is in contact with the plug, the tail end of the thermocouple is located outside the residual eye and the pipe body, the thermocouple is electrically connected with a controller, and the controller is electrically connected with an alarm unit.

2. The blast furnace hearth iron eyes monitoring device according to claim 1, characterized in that: The length of the pipe body is not less than 50 cm.

3. The blast furnace hearth iron eyes monitoring device according to claim 1, characterized in that: A tenon is arranged in the second end of the pipe body, the tenon is located between the pipe body and the thermocouple, and the thermocouple, the tenon and the pipe body are tightly fastened with each other.

4. The blast furnace hearth iron eyes monitoring device according to claim 1, characterized in that: The plug is castable or ramming material.

5. The blast furnace hearth iron eyes monitoring device according to claim 1, characterized in that: The controller is an MCU controller or a PLC controller.

6. The blast furnace forehearth iron eyes monitoring device according to claim 1, characterized in that: The alarm unit is an alarm bell or an alarm lamp.

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