Novel converter masonry center brick positioning device

Abstract

The utility model discloses a novel converter masonry center brick positioning device, which relates to the technical field of refractory material masonry, and comprises an outer frame wrapping iron shell, a center brick is wrapped by the outer frame wrapping iron shell, the top of the outer frame wrapping iron shell is detachably connected with an upper fixed circular iron sheet, and the upper fixed circular iron sheet is detachably connected with a lower fixed circular iron sheet. According to the device disclosed by the utility model, the device moves through the pulleys at the bottom, and the four infrared range finders which are uniformly and symmetrically arranged at an angle of 90 degrees can accurately measure the distances from the central brick of the converter to the converter walls in four directions of the converter; meanwhile, the gradienter placed on the upper surface ensures horizontal positioning height, so that the center brick is positioned more accurately; the positioning and distance measuring tool is simpler and more convenient to operate, time-saving and labor-saving, and more accurate in data measurement; meanwhile, repeated moving of the converter center bricks is avoided, and the danger coefficient of construction is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of refractory material masonry, in particular to a novel converter masonry center brick positioning device. Background Art

[0002] The converter is a metallurgical equipment composed of a large-capacity rotating cylindrical furnace body, a furnace bottom, a furnace top cover and oxygen injection equipment. The converter is used to heat and smelt molten iron and other furnace materials through high-temperature combustion, so that the impurities and carbon in it react with the slag to form high-quality molten steel, so as to improve the quality and output of steel. The lining of the converter consists of an insulating layer, a permanent layer and a working layer. The insulating layer is generally built with polycrystalline refractory fibers, the permanent layer is mostly built with sintered magnesia bricks, and the working layer is all built with magnesia carbon bricks. The working layer magnesia carbon bricks are generally divided into several parts according to the position: furnace bottom, arc transition, molten pool, furnace body, ear shaft, steel outlet, furnace cap, gas supply bricks, etc. The center brick of the furnace bottom is used as the base point, and the bricks are built layer by layer to ensure the use of the converter working layer. Among them, the positioning of the center brick of the furnace bottom is very important. Only when the center brick is accurately positioned can the smooth construction of the working layer be guaranteed.

[0003] At present, in the operation of the center brick laying work of the converter bottom, after the center brick is lowered into the converter, a large amount of manpower is needed to measure the distance from the center brick to the four points of the double-sided ear axis and the double-sided furnace body. Each person's measurement method is different, and the measured data is also different. In order to ensure that the center brick position can be accurately positioned, the center brick needs to be repeatedly moved and adjusted according to the measurement data to make the distances between the four points the same. In the process of moving the center brick, the construction workers need to constantly push and lift the center brick, which increases the risk factor in the construction and aggravates the loss of the center brick. In addition, a large amount of manpower and material resources are required in the measurement process, which is time-consuming and labor-intensive. The final measured distance data cannot be guaranteed to be accurate. Utility Model Content

[0004] The main purpose of the utility model is to provide a novel converter masonry center brick positioning device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A novel converter masonry center brick positioning device comprises an outer frame wrapped iron shell, the outer frame wrapped iron shell wraps the center brick, the top of the outer frame wrapped iron shell is detachably connected with an upper fixed circular iron sheet, the bottom of the outer frame wrapped iron shell is detachably connected with a lower fixed circular iron sheet, the bottom four corners of the lower fixed circular iron sheet are equidistantly provided with pulley limiting mechanisms, the four corners of the side wall of the upper fixed circular iron sheet are equidistantly installed with infrared rangefinders, and a level is installed at the center position of the top of the upper fixed circular iron sheet;

[0007] The pulley limiting mechanism comprises an L-shaped plate, a connecting plate is fixed on the top of the L-shaped plate, and bolts are inserted through the bottom of the connecting plate at both ends of the L-shaped plate, and the top of the L-shaped plate is away from the L-shaped plate, and one end is respectively inserted through a screw 1 and a screw 2, wherein the screw 1 passes through the bottom of one end of the L-shaped plate to fix a pulley, and the screw 2 passes through the bottom of one end of the L-shaped plate to fix a limiting tooth plate, and the outer wall of the screw 1 away from the pulley is threadedly connected with a nut 1, and the outer wall of the screw 2 away from the limiting tooth plate is threadedly connected with two nuts 2, and the hole drilled in the L-shaped plate through the screw 1 is an exposed through hole.

[0008] Preferably, the upper fixed circular iron sheet, the lower fixed circular iron sheet, the outer frame wrapped iron shell and the level are all located on the same central plumb line.

[0009] Preferably, one end of the bolt passes through the connecting plate and is respectively inserted into the lower fixed circular iron sheet and then threadedly connected.

[0010] Preferably, the intervals between adjacent infrared rangefinders are the same, and the horizontal heights between the four infrared rangefinders match.

[0011] Preferably, the nut 1 is located at an end of the L-shaped plate away from the pulley, and the bottom of the nut 1 is in contact with a side of the L-shaped plate away from the pulley.

[0012] Preferably, the two nuts are respectively located at the top and the bottom of the L-shaped plate, and the two nuts are respectively in contact with one end close to the infrared rangefinder.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, the pulley at the bottom is moved, and four infrared distance meters that are evenly symmetrical and angled with each other can accurately measure the distance between the center brick of the converter and the furnace wall in four directions of the converter. At the same time, the level meter placed on the upper surface ensures the positioning height level, so that the positioning of the center brick is more accurate.

[0015] After the center position is determined, the limiting tooth plate can be brought into contact with the ground through the use of screw rod 2, nut 2 and L-shaped plate, and then the pulley can be removed from the L-shaped plate, so that the device can be limited to the center position to avoid the center position shifting when it is subsequently disassembled;

[0016] The operation of the positioning and distance measuring tool is simpler, saving time and effort, and the data measurement is more accurate; at the same time, it eliminates the need for repeated movement of the converter center bricks, reducing the risk factor of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a top view structural schematic diagram of a novel converter masonry center brick positioning device of the utility model;

[0018] Figure 2 This is a structural schematic diagram of a pulley limiting mechanism of a novel converter masonry center brick positioning device of the utility model;

[0019] Figure 3 This is a structural schematic diagram of a novel converter masonry center brick positioning device when a limiting tooth plate falls.

[0020] In the figure: 1. Infrared rangefinder; 2. Upper fixed circular iron sheet; 3. Pulley limit mechanism; 4. Lower fixed circular iron sheet; 5. External iron shell; 6. Level;

[0021] 31. L-shaped plate; 32. Connecting plate; 33. Bolt; 34. Pulley; 35. Screw rod 1; 36. Screw rod 2; 37. Limiting tooth plate; 38. Nut 1; 39. Nut 2. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-3 As shown, a novel converter masonry center brick positioning device comprises an outer frame wrapped iron shell 5, the outer frame wrapped iron shell 5 wraps the center brick, the top of the outer frame wrapped iron shell 5 is detachably connected with an upper fixed circular iron sheet 2, the bottom of the outer frame wrapped iron shell 5 is detachably connected with a lower fixed circular iron sheet 4, the bottom four corners of the lower fixed circular iron sheet 4 are equidistantly provided with pulley limiting mechanisms 3, the four corners of the side wall of the upper fixed circular iron sheet 2 are equidistantly installed with infrared rangefinders 1, and the center position of the top of the upper fixed circular iron sheet 2 is installed with a level 6;

[0024] The pulley limiting mechanism 3 includes an L-shaped plate 31, a connecting plate 32 is fixed on the top of the L-shaped plate 31, bolts 33 are inserted through the bottom of the connecting plate 32 at both ends of the L-shaped plate 31, a screw 1 35 and a screw 2 36 are respectively inserted through the top of the L-shaped plate 31 away from the L-shaped plate 31, a pulley 34 is fixed to the bottom of the screw 1 35 through one end of the L-shaped plate 31, a limiting toothed plate 37 is fixed to the bottom of the screw 2 36 through one end of the L-shaped plate 31, a nut 1 38 is threadedly connected to the outer wall of the end of the screw 1 35 away from the pulley 34, and two nuts 2 39 are threadedly connected to the outer wall of the end of the screw 2 36 away from the limiting toothed plate 37, and the hole drilled by the screw 1 35 through the L-shaped plate 31 is an exposed through hole.

[0025] Specifically, the upper fixed circular iron sheet 2, the lower fixed circular iron sheet 4, the outer frame wrapped iron shell 5 and the level 6 are all located on the same central plumb line.

[0026] Specifically, one end of the bolt 33 passes through the connecting plate 32 and is respectively inserted into the lower fixed circular iron sheet 4 and then threadedly connected.

[0027] Specifically, the intervals between adjacent infrared rangefinders 1 are the same, and the horizontal heights between the four infrared rangefinders 1 match.

[0028] Specifically, the nut 1 38 is located at one end of the L-shaped plate 31 away from the pulley 34 , and the bottom of the nut 1 38 is in contact with the side of the L-shaped plate 31 away from the pulley 34 .

[0029] Specifically, the two second nuts 39 are respectively located at the top and the bottom of the L-shaped plate 31 , and the two second nuts 39 are respectively in contact with one end close to the infrared rangefinder 1 .

[0030] Working process:

[0031] Take the case of a steel plant A laying a converter and positioning the center brick as an example:

[0032] The inner diameters of the converter are 4566mm in the east-west direction and 4520mm in the north-south direction. To locate the center brick, first use a crane to lift the center brick into the converter furnace. The outer frame wraps the iron shell 5 to firmly wrap the center brick. Assemble the upper fixed circular iron sheet 2 and the lower fixed circular iron sheet 4 respectively. Gently lift and install the pulley limit mechanism 3 at the bottom. The four infrared rangefinders 1 are 90° to each other and are evenly and symmetrically installed at the four points of the upper fixed circular iron sheet 2. Finally, install the level 6 on the upper fixed circular iron sheet 2. After all components are installed, open the four lower fixed circular iron sheets 4, gently push the pulley 34, and observe the infrared rangefinders. The value on the distance meter 1 changes. After confirming that the infrared distance meter 1 is not damaged, the positioning device begins to be slowly moved. The infrared distance meter 1 on the east side shows a distance of 2282.6; the infrared distance meter 1 on the west side shows a distance of 2283.4; the level 6 shows that the height of the upper surface of the center brick is horizontal and the deviation is within the range, that is, the positioning is completed in the east and west directions. At this time, the positioning device begins to be slowly moved in the northwest direction. The infrared distance meter 1 on the south side shows a distance of 2259.7; the infrared distance meter 1 on the north side shows a distance of 2260.3; the level 6 shows that the height of the upper surface of the center brick is horizontal and the deviation is within the range, that is, the positioning is completed in the south and north directions;

[0033] At this time, when the positioning on all four sides is completed, the nut 2 39 above the outer wall of the screw 2 36 is rotated to make it rise on the outer wall of the screw 2 36, and the limiting tooth plate 37 is in contact with the bottom of the furnace, and then the two nuts 2 39 are rotated to make them close to and tighten the L-shaped plate 31. The iron sheet firmly limits the center brick and the device here. After lowering the limiting tooth plate 37, the nut 1 38 is removed, and then the screw 1 35 is moved horizontally from the through hole, and the pulley 34 is driven to be pulled out from the bottom of the L-shaped plate 31; then the outer frame wrapped iron shell 5 and the upper fixed circular iron sheet 2 are removed respectively, and finally the four infrared rangefinders 1 and the level 6 on the upper fixed circular iron sheet 2 are removed, and the positioning work of the center brick is completely completed. In the entire positioning work, the positioning device is simple to operate, saves manpower and material resources, avoids repeated manual movement of the center brick, and reduces the safety risks in construction.

[0034] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel converter masonry center brick positioning device, comprising an outer frame wrapped with an iron shell (5), characterized in that: The outer frame wrapped iron shell (5) wraps the central brick, the top of the outer frame wrapped iron shell (5) is detachably connected to an upper fixed circular iron sheet (2), the bottom of the outer frame wrapped iron shell (5) is detachably connected to a lower fixed circular iron sheet (4), the four corners of the bottom of the lower fixed circular iron sheet (4) are equidistantly provided with pulley limiting mechanisms (3), the four corners of the side wall of the upper fixed circular iron sheet (2) are equidistantly installed with infrared rangefinders (1), and a level (6) is installed at the center position of the top of the upper fixed circular iron sheet (2); The pulley limiting mechanism (3) comprises an L-shaped plate (31), a connecting plate (32) is fixed on the top of the L-shaped plate (31), bolts (33) are inserted through the bottom of the connecting plate (32) at both ends of the L-shaped plate (31), a screw rod (35) and a screw rod (36) are inserted through the top of the L-shaped plate (31) away from the L-shaped plate (31), and the screw rod (35) passes through the end of the L-shaped plate (31). A pulley (34) is fixed at the bottom, the second screw rod (36) passes through the bottom of one end of the L-shaped plate (31) to fix a limiting tooth plate (37), the outer wall of the first screw rod (35) away from the pulley (34) is threadedly connected with a nut first (38), the outer wall of the second screw rod (36) away from the limiting tooth plate (37) is threadedly connected with two second nuts (39), and the hole drilled by the L-shaped plate (31) passing through the first screw rod (35) is an exposed through hole.

2. A novel converter masonry center brick positioning device according to claim 1, characterized in that: The upper fixed circular iron sheet (2), the lower fixed circular iron sheet (4), the outer frame wrapped iron shell (5) and the level (6) are all located on the same central plumb line.

3. A novel converter masonry center brick positioning device according to claim 1, characterized in that: One end of the bolt (33) passes through the connecting plate (32) and is respectively inserted into the lower fixed circular iron sheet (4) and then threadedly connected.

4. A novel converter masonry center brick positioning device according to claim 1, characterized in that: The spacings between adjacent infrared rangefinders (1) are the same, and the horizontal heights between the four infrared rangefinders (1) match.

5. A novel converter masonry center brick positioning device according to claim 1, characterized in that: The nut 1 (38) is located at one end of the L-shaped plate (31) away from the pulley (34), and the bottom of the nut 1 (38) is in contact with the side of the L-shaped plate (31) away from the pulley (34).

6. A novel converter masonry center brick positioning device according to claim 1, characterized in that: The two second nuts (39) are respectively located at the top and the bottom of the L-shaped plate (31), and the two second nuts (39) are respectively in contact with one end close to the infrared rangefinder (1).

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