Burning loss prevention iron runner cover plate

Abstract

The utility model discloses an anti-burning-loss iron runner cover plate, and relates to the technical field of iron making, the anti-burning-loss iron runner cover plate comprises an iron runner cover plate body, at least one detection execution mechanism embedded in the iron runner cover plate body, and a temperature alarm electrically connected with the at least one detection execution mechanism; the detection execution mechanism comprises a protective sleeve and a temperature detection part, the protective sleeve is embedded in the iron runner cover plate body, the temperature detection part is arranged in the protective sleeve, the detection end of the temperature detection part is arranged close to the center of the iron runner cover plate body, and when the temperature detection part detects that the temperature in the iron runner cover plate body is larger than the preset temperature, the temperature detection part is started to detect the temperature in the iron runner cover plate body. The temperature alarm gives an alarm, and the preset temperature is the safe heat-resistant temperature of the iron runner cover plate body. The problems that the use state of an existing slag iron runner cover plate cannot be detected in real time, the manual inspection difficulty is large, and the accuracy is low are solved; meanwhile, the burning loss prevention iron runner cover plate is simple in structure and low in cost, the temperature detection piece is convenient to replace, burning loss of the iron runner cover plate body can be effectively avoided, and the stokehole labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ironmaking, and particularly relates to an iron runner cover plate for preventing burning damage. Background Art

[0002] The slag-iron runner is an important part of the blast furnace tapping. As a place for containing high-temperature slag and iron, the slag-iron runner also plays a role in the circulation of high-temperature slag and iron and the separation of slag and iron. During the ironmaking process, the high-temperature molten iron flows through the iron runner into the swing spout and finally enters the molten iron ladle through the swing spout. The high-temperature molten slag enters the slag treatment system through the slag runner and is finally quenched with water to form granulated slag.

[0003] During the process of blast furnace smelting and tapping, a large amount of dust is generated at various positions of the slag-iron runner in the tapping yard. If not treated, it will cause great environmental pollution to the site. At the same time, the open slag-iron runner has exposed molten iron with a high temperature, which also poses a great potential safety hazard. Therefore, for the requirements of safety and environmental protection and other aspects, each steel enterprise installs a cover plate on the slag-iron runner.

[0004] The commonly used iron runner cover plate body is welded by steel structure, and a refractory spraying material is arranged inside the cover plate to protect the steel structure cover plate. However, due to the extremely high temperature in the slag-iron runner, especially in the slag-iron runner near the main runner, the steel structure cover plate is in a state of long-term high-temperature baking, resulting in the phenomena of welding parts opening, deforming, and refractory material falling off during the use of the steel structure cover plate. Therefore, the steel structure cover plate needs to be frequently repaired or even replaced on the production site, which greatly increases the workload on the site.

[0005] Therefore, it is necessary to monitor the state of the iron runner cover plate body in order to timely repair the cover plate and avoid the waste caused by unnecessary burning damage of the cover plate. Summary of the Utility Model

[0006] The purpose of the utility model is to provide an iron runner cover plate for preventing burning damage, and solve the problem that the iron runner cover plate body is burned and damaged during use in the prior art due to the failure to repair it in time.

[0007] The above object of the utility model can be achieved by adopting the following technical solutions:

[0008] The utility model provides an anti-burning-out trough cover plate, which comprises a trough cover plate body, at least one detection and execution mechanism embedded in the trough cover plate body, and a temperature alarm electrically connected to at least one detection and execution mechanism; the detection and execution mechanism comprises a protective sleeve and a temperature detector, the protective sleeve is embedded in the trough cover plate body, the temperature detector is arranged in the protective sleeve, the detection end of the temperature detector is arranged near the center of the trough cover plate body, when the temperature detector detects that the temperature in the trough cover plate body is greater than a preset temperature, the temperature alarm gives an alarm, and the preset temperature is the safe heat-resistant temperature of the trough cover plate body.

[0009] Preferably, the anti-burning-out trough cover plate comprises a plurality of detection and execution mechanisms, and the plurality of detection and execution mechanisms are arranged at intervals along the molten iron flow direction in the slag iron trough.

[0010] Preferably, the anti-burning-out trough cover plate comprises multiple rows of detection and execution mechanism groups, the multiple rows of detection and execution mechanism groups are arranged at intervals along the molten iron flow direction in the slag iron trough, and each row of detection and execution mechanism groups comprises two detection and execution mechanisms symmetrically arranged about the center line of the trough cover plate body.

[0011] Preferably, along the molten iron flow direction in the slag iron trough, the multiple rows of detection and execution mechanism groups are evenly arranged.

[0012] Preferably, there are a plurality of temperature alarms, and the plurality of temperature alarms are arranged in one-to-one correspondence with the respective detection and execution mechanisms.

[0013] Preferably, the protective sleeve has a transition part extending outward from the end of the trough cover plate body, and the length of the transition part is not less than 50 mm.

[0014] Preferably, the trough cover plate body comprises a shell and a refractory layer arranged in the shell.

[0015] Preferably, a plurality of Y-shaped welding studs are arranged at intervals in the refractory layer.

[0016] Preferably, a plurality of channel steels are arranged side by side at intervals in the shell, the height direction of the channel steels is consistent with the thickness direction of the shell, and the notch of each channel steel faces the inside of the shell.

[0017] Preferably, an anti-slip plate is arranged on the shell, and the anti-slip plate is arranged on the surface of the shell facing away from the slag iron trough.

[0018] The features and advantages of the present utility model are as follows: The anti-burning damage trough cover plate provided by the present utility model realizes real-time automatic temperature measurement of the temperature detection point by arranging a detection and execution mechanism with a protective sleeve and a temperature detection element in the trough cover plate body, and transmits the temperature signal detected by the temperature detection element to the temperature alarm to control the use state of the trough cover plate body. When the detection and execution mechanism detects that the temperature in the trough cover plate body exceeds the preset temperature, the temperature alarm issues an alarm so that the staff can timely repair the trough cover plate body, avoiding waste caused by unnecessary burning damage of the trough cover plate body, and solving the problems that the use state of the existing slag and iron trough cover plate cannot be detected in real time, the manual inspection is difficult and the accuracy is low. At the same time, the anti-burning damage trough cover plate provided by the present utility model has a simple structure, low cost, and the temperature detection element is convenient to replace, can effectively avoid the burning damage of the trough cover plate body, and reduce the labor intensity in front of the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0020] Figure 1 FIG. is a schematic plan view of the anti-burning damage trough cover plate provided in the embodiment of the present utility model;

[0021] Figure 2 is Figure 1 the A-A sectional view of.

[0022] Description of the reference numerals in the drawings:

[0023] 10, trough cover plate body; 11, housing; 12, refractory layer; 13, Y-shaped welding nail; 14, channel steel; 15, anti-slip plate;

[0024] 20, detection and execution mechanism; 21, protective sleeve; 211, transition part; 22, temperature detection element;

[0025] 30, temperature alarm;

[0026] F, molten iron flow direction. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] As Figure 1 and Figure 2 shown, the present utility model provides an anti-burning damage trough cover plate, which includes a trough cover plate body 10, at least one detection and execution mechanism 20 embedded in the trough cover plate body 10, and a temperature alarm 30 electrically connected to the at least one detection and execution mechanism 20; the detection and execution mechanism 20 includes a protective sleeve 21 and a temperature detection element 22. The protective sleeve 21 is embedded in the trough cover plate body 10, and the temperature detection element 22 is arranged inside the protective sleeve 21. The detection end of the temperature detection element 22 is arranged near the center of the trough cover plate body 10. When the temperature detection element 22 detects that the temperature inside the trough cover plate body 10 is greater than a preset temperature, the temperature alarm 30 gives an alarm, and the preset temperature is the safe heat-resistant temperature of the trough cover plate body 10. Specifically, as Figure 1 and Figure 2 shown, the anti-burning damage trough cover plate includes a trough cover plate body 10, a plurality of detection and execution mechanisms 20 spaced and embedded in the trough cover plate body 10, and a plurality of temperature alarms 30 electrically connected to each detection and execution mechanism 20. The detection and execution mechanism 20 includes a protective sleeve 21 embedded in the trough cover plate body 10 and a temperature detection element 22 passing through the protective sleeve 21. The detection end of the temperature detection element 22 is arranged near the center of the trough cover plate body 10, that is, the detection end of the temperature detection element 22 is arranged near the high-temperature area above the slag-iron trough to ensure timely and accurate temperature detection, and further ensure the overhaul and maintenance of the anti-burning damage trough cover plate within a better overhaul and maintenance time. In this embodiment, a thermocouple with better high-temperature resistance is preferably used as the temperature detection element 22.

[0029] The anti-burning ladle cover provided by the present utility model realizes real-time automatic temperature measurement of the temperature detection points by arranging a detection and execution mechanism 20 with a protective sleeve 21 and a temperature detection element 22 inside the ladle cover body 10, and transmits the temperature signal detected by the temperature detection element 22 to the temperature alarm 30 to control the use state of the ladle cover body 10. When the detection and execution mechanism 20 detects that the temperature inside the ladle cover body 10 exceeds the preset temperature, the temperature alarm 30 issues an alarm, so that the staff can timely repair the ladle cover body 10, avoiding waste caused by unnecessary burning of the ladle cover body 10, and solving the problems of the existing slag and iron ladle cover that the use state cannot be detected in real time, the manual inspection is difficult, and the accuracy is low. At the same time, the anti-burning ladle cover provided by the present utility model has a simple structure, low cost, and the temperature detection element 22 is convenient to replace, which can effectively avoid the burning of the ladle cover body 10 and reduce the labor intensity in front of the furnace.

[0030] According to a preferred embodiment of the present utility model, as Figure 1 shown, the anti-burning ladle cover includes a plurality of detection and execution mechanisms 20, and the plurality of detection and execution mechanisms 20 are arranged at intervals along the molten iron flow direction F in the slag and iron ladle. In this way, multi-point detection is carried out on the high-temperature area of the anti-burning ladle cover directly above the slag and iron ladle, so as to prevent the anti-burning ladle cover from being burned due to missing detection of a certain place in the high-temperature area.

[0031] According to a preferred embodiment of the present utility model, as Figure 1 shown, the anti-burning ladle cover includes multiple rows of detection and execution mechanism groups 20, and the multiple rows of detection and execution mechanism groups 20 are arranged at intervals along the molten iron flow direction F in the slag and iron ladle. Each row of detection and execution mechanism groups 20 includes two detection and execution mechanisms 20 symmetrically arranged about the center line of the ladle cover body 10. In this way, detection is carried out on the high-temperature areas on both sides of the center of the slag and iron ladle of the anti-burning ladle cover, so as to prevent the anti-burning ladle cover from being burned when the molten iron and slag flow non-uniformly and no detection and execution mechanism 20 is arranged on the side with more molten iron and slag flow.

[0032] According to an embodiment of the present utility model, as Figure 1 shown, along the molten iron flow direction F in the slag and iron ladle, the multiple rows of detection and execution mechanism groups 20 are evenly arranged. In this way, the multiple rows of detection and execution mechanism groups 20 perform multi-point detection on the central area with a higher temperature on the anti-burning ladle cover (the part of the anti-burning ladle cover directly above the slag and iron ladle), so as to avoid the anti-burning ladle cover from being burned due to missing detection of a certain place in the central area.

[0033] According to a preferred embodiment of the present utility model, as Figure 1As shown, there are multiple temperature alarms 30, and the multiple temperature alarms 30 are arranged in one-to-one correspondence with each detection and execution mechanism 20. In this way, it can avoid the time waste caused by misjudgment in the case of at least two detection points alarming simultaneously when multiple detection points correspond to one temperature alarm 30, and it can also eliminate the cable protection process when the cable connecting the temperature detection element 22 and the temperature alarm 30 passes through the slag and iron trough.

[0034] According to a preferred embodiment of the present invention, as Figure 2 shown, the protective sleeve 21 has a transition portion 211 extending outward from the end of the trough cover body 10, and the length of the transition portion 211 is not less than 50 mm. By providing the transition portion 211, the cable connected between the temperature detection element 22 and the temperature alarm 30 is protected to prevent the cable from being damaged and affecting the electrical signal transmission, thereby missing the best maintenance opportunity for preventing the burning of the trough cover, and further causing the burning or even burning through of the trough cover for preventing burning.

[0035] According to an embodiment of the present invention, as Figure 2 shown, the trough cover body 10 includes a shell 11 and a refractory layer 12 provided in the shell 11. By providing the refractory layer 12, the overall heat resistance of the trough cover body 10 is improved. Preferably, the refractory layer 12 can be made of CMC-LW1100 or CMC-LW1600 refractory with better heat resistance. The maximum service temperature of CMC-LW1100 is 1100 °C, the density at 110 °C is 0.85 g / cm3 to 1.1 g / cm3, the Al2O3 content is not less than 28%, the SiO2 content does not exceed 52%, and at an average temperature of 800 ± 25 °C, the thermal conductivity does not exceed 0.27 W / m·K; the maximum service temperature of CMC-LW1600 is 1600 °C, the density at 110 °C is greater than 2.1 g / cm3, the Al2O3 content is not less than 52%, the SiO2 content does not exceed 42%, and at an average temperature of 1000 °C, the thermal conductivity does not exceed 0.95 W / m·K.

[0036] According to a preferred embodiment of the present invention, as Figure 2 shown, a plurality of Y-shaped studs 13 are arranged at intervals in the refractory layer 12. By implanting a plurality of Y-shaped studs 13 at intervals in the refractory layer 12, the tensile bearing capacity and shear bearing capacity of the trough cover for preventing burning are improved.

[0037] According to a preferred embodiment of the present invention, a plurality of channel steels 14 are arranged side by side and at intervals in the shell 11, the height direction of the channel steels 14 is consistent with the thickness direction of the shell 11, and the openings of the channel steels 14 face the inside of the shell 11. Specifically, as Figure 2As shown in the figure, to improve the structural strength of the anti-burning ladle cover plate, along the width direction of the slag-iron trench, a plurality of channel steels 14 are evenly distributed inside the housing 11. The longitudinal extension direction of each channel steel 14 is consistent with the molten iron flow direction F in the slag-iron trench, and the notch of each channel steel 14 faces the inside of the housing 11, which can not only maintain good support but also facilitate construction and installation.

[0038] According to a preferred embodiment of the present utility model, as Figure 1 and Figure 2 shown in the figure, an anti-slip plate 15 is provided on the housing 11, and the anti-slip plate 15 is arranged on the surface of the housing 11 facing away from the slag-iron trench. By providing the anti-slip plate 15 on the surface of the housing 11 facing away from the slag-iron trench, the roughness of the surface of the housing 11 is increased to prevent the staff from slipping when passing through the anti-burning ladle cover plate.

[0039] Based on the above structural description, the anti-burning ladle cover plate provided by the embodiment of the present application has the following beneficial effects:

[0040] The anti-burning ladle cover plate provided by the embodiment of the present application realizes real-time automatic temperature measurement of the temperature detection point by arranging a detection and execution mechanism 20 with a protective sleeve 21 and a temperature detection element 22 inside the ladle cover plate body 10, and transmits the temperature signal detected by the temperature detection element 22 to the temperature alarm 30 to control the use state of the ladle cover plate body 10. When the detection and execution mechanism 20 detects that the temperature inside the ladle cover plate body 10 exceeds the preset temperature, the temperature alarm 30 gives an alarm, so that the staff can timely repair the ladle cover plate body 10, avoiding the waste caused by unnecessary burning of the ladle cover plate body 10, and solving the problems of the existing slag-iron trench cover plate that the use state cannot be detected in real time, the manual inspection is difficult, and the accuracy is low; at the same time, the anti-burning ladle cover plate provided by the present utility model has a simple structure, low cost, and the temperature detection element 22 is convenient to replace, which can effectively avoid the burning of the ladle cover plate body 10 and reduce the labor intensity in front of the furnace; and by arranging a plurality of detection and execution mechanisms 20 in the high-temperature area, multi-point detection of the central area with a higher temperature on the anti-burning ladle cover plate is realized, so as to avoid the burning of the anti-burning ladle cover plate caused by missing a certain point in the central area; in addition, by extending the protective sleeve 21 from the end of the ladle cover plate body 10 to form a transition part 211, the cable connected between the temperature detection element 22 and the temperature alarm 30 is protected to prevent the cable from being damaged and affecting the transmission of the electrical signal, thereby missing the best maintenance opportunity of the anti-burning ladle cover plate, and then leading to the burning or even burning through of the anti-burning ladle cover plate.

[0041] The above are only several embodiments of the present utility model, and those skilled in the art can make various changes or modifications to the embodiments of the present utility model without departing from the spirit and scope of the present utility model according to the content disclosed in the application documents.

Claims

1. A burn-proof iron ditch cover, characterized in that: It comprises an iron trench cover plate body, at least one detection actuator embedded in the iron trench cover plate body, and a temperature alarm electrically connected to at least one of the detection actuators; The detection actuator includes a protective sleeve and a temperature detection component. The protective sleeve is embedded in the iron trench cover body. The temperature detection component is arranged in the protective sleeve. The detection end of the temperature detection component is arranged near the center of the iron trench cover body. When the temperature detection component detects that the temperature inside the iron trench cover body is greater than a preset temperature, the temperature alarm sounds an alarm. The preset temperature is the safe heat-resistant temperature of the iron trench cover body.

2. The anti-burning iron trench cover according to claim 1 is characterized in that: The anti-burning iron ditch cover plate includes a plurality of the detection actuators, and the plurality of the detection actuators are arranged at intervals along the flow direction of molten iron in the slag iron ditch.

3. The anti-burning iron ditch cover according to claim 1 is characterized in that: The anti-burning iron ditch cover includes multiple rows of detection actuator groups, which are arranged at intervals along the flow direction of molten iron in the slag ditch, and each row of the detection actuator groups includes two detection actuators symmetrically arranged about the center line of the iron ditch cover body.

4. The anti-burning iron ditch cover according to claim 3 is characterized in that: Along the flow direction of the molten iron in the slag-iron ditch, multiple rows of the detection actuator groups are evenly arranged.

5. The anti-burning iron ditch cover according to claim 2 or 3, characterized in that: There are multiple temperature alarms, and the multiple temperature alarms are arranged in one-to-one correspondence with each of the detection execution mechanisms.

6. The anti-burn iron ditch cover according to claim 1, characterized in that: The protective sleeve has a transition portion extending outward from the end of the iron trench cover plate body, and the length of the transition portion is not less than 50 mm.

7. The anti-burning iron trench cover according to claim 1 is characterized in that: The iron trench cover plate body comprises a shell and a refractory layer arranged in the shell.

8. The anti-burning iron ditch cover plate according to claim 7 is characterized in that: A plurality of Y-shaped welding pins are arranged at intervals in the refractory layer.

9. The anti-burn iron ditch cover according to claim 7, characterized in that: A plurality of channel steels are arranged side by side and at intervals in the shell, the height direction of the channel steels is consistent with the thickness direction of the shell, and the notch of each channel steel is arranged toward the inside of the shell.

10. The anti-burn iron ditch cover according to claim 7, characterized in that: The shell is provided with an anti-skid plate, and the anti-skid plate is arranged on the surface of the shell away from the slag and iron groove.

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