Measuring rod for measuring thickness of slag layer of iron-making hot-metal bottle

Abstract

The utility model discloses a measuring rod used for measuring the thickness of a slag layer of an iron-making hot-metal bottle, which comprises an operating rod used for being held by hand, the operating rod is hinged with a measuring rod used for measuring the thickness of slag through a rotary joint, the tip end of the measuring rod is provided with a conical slag breaking head, and one section of the measuring rod close to the slag breaking head is provided with scale marks; the scale marks are a plurality of convex columns which are arranged on the measuring rod in parallel; wherein the rotary joint comprises two supporting frames which are arranged at an interval, and the two supporting frames are fixedly connected to the measuring rod; the rotating end is arranged at the end part of the operating rod and is positioned between the two supporting frames; the two supporting frames are connected with the rotating end through bolts. The rotating end is used for rotating around the bolt, so that the angle of the operating rod relative to the measuring rod is adjustable. The problems that an existing slag thickness measuring means is inaccurate in measuring result and safety risks exist in the personnel operation process are solved.

Description

[Technical field]

[0001] The utility model belongs to the technical field of slag thickness measurement of a molten iron tank, and in particular relates to a measuring rod used for measuring the thickness of a slag layer of a molten iron tank for ironmaking. [Background technology]

[0002] When it is difficult to separate slag from iron-making blast furnaces, during the iron-tapping process, the iron content in the slag is too high, which will cause iron to accumulate in the slag ditch in front of the blast furnace, damaging the slag ditch and reducing its service life, while causing great damage to the slag treatment system equipment. When it is difficult to separate slag from iron-making blast furnaces, the amount of slag in molten iron will increase, which will in turn increase the consumption of steelmaking flux, make it difficult to measure the temperature of the molten iron tank, and make it difficult to control the end point of the steelmaking converter.

[0003] In order to improve the slagging phenomenon at the mouth of the molten iron tank, the "one tank system" molten iron transportation and production mode is adopted. The blast furnace molten iron acceptance, transportation, buffer storage, converter iron addition and other processes are completed through the same molten iron tank, which changes the traditional production connection method. Only by opening the molten iron tank cover during the iron release at the bottom of the blast furnace and the steelmaking tank pouring process, the slagging phenomenon at the mouth of the molten iron tank can be greatly reduced, shortening the steelmaking process time, and playing a good role in heat preservation, energy saving and environmental protection.

[0004] The molten iron tank has a lid. The commonly used method for measuring slag thickness is to use a steel bar. After the lid of the molten iron tank is opened, it is inserted into the molten iron tank. Since the lid of the molten iron tank is not fully opened, it can only be inserted into the molten iron tank obliquely, and then the length of the steel bar sticking to the slag is measured with a tape measure to obtain the thickness of the slag layer. Therefore, the existing slag thickness measurement method has problems such as cumbersome data reading steps, inaccurate measurement results, safety risks in the operation process, and the steel bar cannot be inserted and cannot be measured when the slag layer is thick. [Contents of the utility model]

[0005] The utility model aims to provide a measuring rod for measuring the thickness of the slag layer of an ironmaking molten iron tank, so as to solve the problems of inaccurate measurement results of existing slag thickness measurement means and safety risks in the operation process of personnel.

[0006] The utility model adopts the following technical scheme: a measuring rod for measuring the thickness of the slag layer of an ironmaking molten iron tank comprises a hand-held operating rod, the operating rod is hinged to a measuring rod for measuring the slag thickness through a rotating joint, a conical slag-breaking head is arranged at the tip of the measuring rod, and a section of the measuring rod close to the slag-breaking head is provided with a scale mark; the scale mark is a plurality of convex columns arranged in parallel on the measuring rod;

[0007] Among them, the rotating joint includes two support frames arranged at intervals, and the two support frames are fixedly connected to the measuring rod; it also includes a rotating end arranged at the end of the operating rod, and the rotating end is located between the two support frames; the two support frames and the rotating end are connected by bolts; the rotating end is used to rotate around the bolts to realize the adjustable angle of the operating rod relative to the measuring rod.

[0008] Furthermore, the distance between the two bosses at the two ends of the scale mark is 300 mm, and the bosses are spaced 50 mm apart.

[0009] Furthermore, an anti-collision block is provided on one side of the measuring rod close to the operating rod.

[0010] Furthermore, a handle is provided at the end of the operating rod.

[0011] The beneficial effects of the utility model are as follows: by setting scale marks, the depth of the measuring rod extending downward into the molten iron tank can be controlled, generally 200-300 mm downward; the slag thickness can also be directly read out according to the length of the iron slag attached to the measuring rod through the difference of the scale marks, the operation is simple, and the reading is more accurate.

[0012] The angle between the operating rod and the measuring rod is adjusted by the rotating joint, so that the operator can hold the operating rod while keeping a certain safe distance from the molten iron tank, avoiding the safety risk of high-temperature molten iron to the operator. The angle between the operating rod and the measuring rod is formed to ensure the safe operation of the personnel, and the measuring rod can always be inserted vertically into the molten iron to ensure the accuracy of the slag thickness measurement results.

[0013] In addition, a conical slag breaking head is used at the measuring end of the measuring rod, so that the slag layer can still be broken when the slag layer is thick, so that the measuring rod can be extended into the slag layer to achieve measurement.

Brief Description of the Drawings

[0014] Figure 1 This is a schematic structural diagram of a measuring rod used for measuring the thickness of a slag layer in an ironmaking molten iron tank according to the utility model;

[0015] Figure 2 for Figure 1 A cross-sectional schematic diagram in the direction of center A;

[0016] Figure 3 The utility model is a diagram showing the use status of a measuring rod for measuring the thickness of a slag layer in an ironmaking molten iron tank.

[0017] Among them, 1. handle, 2. operating rod, 3. rotating joint, 31. support frame, 32. rotating end, 33. bolt, 4. measuring rod, 5. slag breaking head, 6. anti-collision block, 7. molten iron tank, 71. molten iron, 72. slag layer. [Specific implementation method]

[0018] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0019] The utility model provides a measuring rod for measuring the thickness of the slag layer of the iron molten iron tank. Figure 1As shown, it comprises an operating rod 2 for hand-holding, and the operating rod 2 is hinged to a measuring rod 4 for measuring slag thickness through a rotating joint 3. The angle between the operating rod 2 and the measuring rod 4 can be rotated according to the use requirements.

[0020] The tip of the measuring rod 4 is provided with a conical slag breaking head 5 , and a section of the measuring rod 4 close to the slag breaking head 5 is provided with scale marks; the scale marks are a plurality of convex columns arranged in parallel on the measuring rod 4 .

[0021] Among them, Figure 2 As shown, the rotary joint 3 includes two support frames 31 arranged at intervals, and the two support frames 31 are fixedly connected to the measuring rod 4; it also includes a rotating end 32 arranged at the end of the operating rod 2, and the rotating end 32 is located between the two support frames 31; the two support frames 31 and the rotating end 32 are hingedly connected by bolts 33. The rotating end 32 is used to rotate around the bolts 33 to achieve an adjustable angle of the operating rod 2 relative to the measuring rod 4.

[0022] In some embodiments, the thickness of the iron slag is usually 100-200 mm, so the distance between the two protrusions at the two ends of the scale mark is set to 300 mm. In this way, the distance that the measuring rod 4 extends into the molten iron tank 7 can be controlled by the scale mark to ensure that the slag breaking head 5 can reach or pass through the slag layer. According to the need for measurement accuracy, the interval between the two protrusions can be set to 50 mm.

[0023] In some embodiments, an anti-collision block 6 is provided on one side of the measuring rod 4 close to the operating rod 2 to prevent collision when adjusting the angle between the measuring rod 4 and the operating rod 2 .

[0024] In some embodiments, a handle 1 is provided at the end of the operating rod 2 to facilitate hand-held measurement.

[0025] like Figure 3 As shown, the method of using the measuring rod for measuring the thickness of the slag layer in the ironmaking molten iron tank of the utility model is as follows:

[0026] Rotate the measuring rod 4 and the operating rod 2 to form a certain angle;

[0027] Place the outer wall of the measuring rod 4 close to the inner wall of the molten iron tank 7 so that the measuring rod 4 is in a vertical downward position;

[0028] The measuring rod 4 is translated to separate the measuring rod 4 from the inner wall of the molten iron ladle, and then the measuring rod 4 is moved vertically downward and kept still for 2-10 seconds; at the same time, the reading of the scale mark ensures that the downward movement distance of the measuring rod 4 is 200-300 mm;

[0029] Then the measuring rod 4 is lifted upward, and the iron slag will adhere to the measuring rod 4. The length of the iron slag is the slag thickness. The slag thickness can be calculated by measuring or by the difference of the scale marks.

[0030] After the measurement is completed, the iron slag can be directly knocked off the measuring rod 4 and then the next measurement can be carried out.

Claims

1. A measuring rod for measuring the thickness of the slag layer in an ironmaking molten iron tank, characterized in that: The invention comprises a hand-held operating rod (2), the operating rod (2) being hingedly connected to a measuring rod (4) for measuring slag thickness via a rotating joint (3), the tip of the measuring rod (4) being provided with a conical slag-breaking head (5), and a section of the measuring rod (4) close to the slag-breaking head (5) being provided with scale marks; the scale marks being a plurality of convex columns arranged in parallel on the measuring rod (4); The rotary joint (3) comprises two support frames (31) arranged at intervals, the two support frames (31) being fixedly connected to the measuring rod (4); and a rotating end (32) arranged at the end of the operating rod (2), the rotating end (32) being located between the two support frames (31); the two support frames (31) and the rotating end (32) being connected by a bolt (33); the rotating end (32) being used to rotate around the bolt (33) to achieve an adjustable angle of the operating rod (2) relative to the measuring rod (4).

2. The measuring rod for measuring the thickness of the slag layer in the ironmaking molten iron ladle according to claim 1, characterized in that: The distance between the two protruding columns at the two ends of the scale mark is 300 mm, and the protruding columns are spaced 50 mm apart.

3. The measuring rod for measuring the thickness of the slag layer in the ironmaking molten iron ladle according to claim 1 or 2, characterized in that: An anti-collision block (6) is provided on one side of the measuring rod (4) close to the operating rod (2).

4. The measuring rod for measuring the thickness of the slag layer in the ironmaking molten iron ladle according to claim 1 or 2, characterized in that: A handle (1) is provided at the end of the operating rod (2).

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