A tool for assisting in the casting of a smelting furnace

Abstract

The utility model relates to aluminum electrolysis field especially relates to a kind of smelting furnace casting auxiliary tools, including the bottom plate of horizontal arrangement, vertical fixed guide slide vertical pole is on the bottom plate, the top of guide slide vertical pole is provided with display, two sliding seats are slidably connected on guide slide vertical pole, sensor mounting seat is fixed on the sliding seat, linear displacement sensor is provided on the sensor mounting seat.The utility model has the advantages of simple operation, high data accuracy, intuitive display, etc., solves the problem of inaccurate thickness measurement of smelting furnace lining during casting process, uneven thickness of furnace lining, and prolongs the service life of smelting furnace.

Description

Technical Field

[0001] This utility model relates to the field of aluminum electrolysis, and in particular to an auxiliary tool for smelting furnaces and casting furnaces. Background Technology

[0002] In the aluminum electrolysis production process, the molten iron used for casting anode carbon blocks and guide rods is prepared by a smelting furnace. The smelting furnace is used frequently, and the casting furnace is used even more frequently. Therefore, improving the quality of the smelting and casting furnaces can extend their service life, thereby reducing the frequency of casting. Simultaneously, it can significantly reduce casting-related costs and improve the stability and safety of production activities, which is of great significance.

[0003] like Figure 1 The diagram shows the structure of an existing smelting furnace. During the casting process, the thickness of the working lining 11 between the crucible 12 and the coil mortar layer 8 is measured visually or with a tape measure. However, this method lacks the required accuracy and fails to guarantee the verticality of the crucible placement. The uniformity of the working lining thickness is also insufficient. As the smelting process progresses, under the same scouring action of molten iron, the wear on the working lining is roughly the same, but the thinner side will result in a non-compliant lining, shortening its service life and potentially leading to furnace leakage and other equipment accidents. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide an auxiliary tool for smelting furnaces and casting furnaces, so as to improve the uniformity of the working furnace lining thickness, extend the service life of the working furnace lining, reduce the risk of equipment accidents, and reduce the cost of smelting furnaces and casting furnaces.

[0005] The present invention adopts the following technical solution:

[0006] This utility model provides an auxiliary tool for smelting furnaces and casting furnaces, including a horizontally arranged base plate, a guide rod vertically fixed on the base plate, a display at the top of the guide rod, two sliding seats slidably connected on the guide rod, a sensor mounting base fixed on the sliding seat, and a linear displacement sensor mounted on the sensor mounting base, with the two linear displacement sensors located on the same longitudinal plane.

[0007] Preferably, the slide block includes a guide sleeve, which is sleeved on the guide rod. A tightening bolt is threaded onto the guide sleeve. A guide groove is provided on the outer wall of the guide rod along its length, and the tightening bolt abuts against the guide groove.

[0008] Preferably, the sensor mounting base includes a sensor housing sleeve, the linear displacement sensor is fixed inside the sensor housing sleeve, the sensor housing sleeve is disposed on a connecting seat, and the connecting seat is fixed on the guide sleeve.

[0009] Preferably, the bottom of both sides of the sensor housing is provided with a bottom edge, and two U-shaped clips are provided on the bottom edge. The U-shaped clips are provided with fastening bolts, and the fastening bolts are threadedly connected to the connecting seat.

[0010] Preferably, the base plate is arc-shaped.

[0011] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0012] This invention has the advantages of simple operation, high data accuracy, and intuitive display. It solves the problems of inaccurate thickness measurement and uneven furnace lining thickness during the casting process, and extends the service life of the melting furnace. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a structural schematic diagram of an existing smelting furnace.

[0015] Figure 2 This is a schematic diagram of the structure of the auxiliary tools for smelting and casting furnaces of this utility model;

[0016] Figure 3 This is a schematic diagram of the sensor mounting base and slide of this utility model;

[0017] Figure 4 This is a top view of the present invention in its use state.

[0018] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Guide rod; 201. Guide groove; 3. Display; 4. Slide seat; 401. Guide sleeve; 402. Tightening bolt; 5. Sensor mounting base; 501. Sensor housing; 502. Connecting seat; 503. Bottom edge; 504. U-shaped clip; 505. Fastening bolt; 6. Linear displacement sensor; 7. Furnace nozzle; 8. Coil putty layer; 9. Sliding surface; 10. Lower structure prefabricated component; 11. Working furnace lining; 12. Crucible; 13. Upper structure prefabricated component; 14. Sealing material. Detailed Implementation

[0019] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figure 2 and 3As shown, this embodiment discloses an auxiliary tool for a smelting furnace or casting furnace, including a horizontally arranged base plate 1, a guide rod 2 vertically fixed on the base plate 1, a display 3 at the top of the guide rod 2, two slide seats 4 slidably connected on the guide rod 2, the slide seats 4 can slide up and down along the guide rod 2, a sensor mounting base 5 is fixed on the slide seat 4, and a linear displacement sensor 6 is provided on the sensor mounting base 5, with the two linear displacement sensors 6 located on the same longitudinal plane.

[0021] When measuring relevant data, the measuring part of the linear displacement sensor 6 contracts, causing a change in the current signal, thereby achieving data measurement. The electrical connection between the displacement sensor and the display is primarily for transmitting the displacement signal (analog / digital) output by the sensor to an intermediate control unit. After signal processing, it is displayed visually on the screen. The display has a built-in signal processing module. The electrical connection between the linear displacement sensor 6 and the display 3 is prior art; those skilled in the art can purchase existing modules for assembly.

[0022] like Figure 3 As shown, the slide block 4 includes a guide sleeve 401, which is fitted onto the guide rod 2. The guide sleeve 401 can slide up and down along the guide rod 2. A tightening bolt 402 is threaded onto the guide sleeve 401. A guide groove 201 is provided along the length of the outer wall of the guide rod 2, and the tightening bolt 402 abuts against the guide groove 201. The tightening bolt 402 is used to position and fix the guide sleeve 401, while the guide groove 201 can prevent the slide block 4 from rotating circumferentially, ensuring that the two linear displacement sensors 6 are on the same longitudinal plane.

[0023] The sensor mounting base 5 includes a sensor housing 501, a linear displacement sensor 6 is mounted and fixed inside the sensor housing 501, the sensor housing 501 is mounted on a connecting base 502, and the connecting base 502 is fixed on a guide sleeve 401.

[0024] In this embodiment, both sides of the sensor housing 501 have bottom edges 503. Two U-shaped clips 504 are provided on the bottom edges 503, with their openings clamping onto the bottom edges 503. Each U-shaped clip 504 has a through hole into which a fastening bolt 505 is threaded onto the connecting seat 502. By rotating the fastening bolt 505, the U-shaped clips 504 can clamp and fix the sensor housing 501, thereby securing the sensor housing 501 to the connecting seat 502.

[0025] like Figure 4 As shown, the usage process of this utility model is as follows:

[0026] Before constructing the smelting furnace, a working furnace lining 11 needs to be built using furnace-building material within the cavity formed by the sliding surface 9, crucible 12, and lower structural prefabricated component 13. During furnace lining construction, crucible 12 is not placed in the furnace. A fixed amount of furnace-building material is filled in and compacted with tools until the furnace-building material reaches the predetermined thickness. Crucible 12 is then placed in the furnace, and data at four positions with a radial angle of 90° between the sliding surface 9 and crucible 12 are measured. The measurement error of the two displacement sensors does not exceed the allowable value, and the error of the data at the four measuring points also does not exceed the allowable value. The crucible 12 is then properly supported to prevent displacement or shaking. A certain amount of furnace-building material is added into the furnace chamber and compacted with tools. The device is used again for measurement and adjustment to ensure that the distance between crucible 12 and sliding surface 9 does not exceed the allowable value, thereby ensuring a uniform thickness of the working furnace lining 11. The above operations are repeated until the upper displacement sensor exceeds the height of the crucible. At this point, the fixing screws of the sensor mounting bracket need to be loosened, and the position of the sensor needs to be adjusted so that it can make effective measurements. Finally, the upper space is filled and compacted with furnace lining material, and the casting of the working furnace lining of the smelting furnace is completed.

[0027] In this embodiment, to better suit measurements during the casting process of the working furnace lining in the smelting furnace and to ensure the accuracy of the measurement data, the base plate 1 is arc-shaped. The sliding surface 9 and the crucible 12 are coaxial. During measurement, the outer arc of the base plate 1 coincides with the sliding surface 9, and at the same time, the outer circle of the slide block 4 is tangent to the sliding surface 9, which can achieve a unified measurement reference and thus ensure the accuracy of the measurement data.

[0028] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An auxiliary tool for smelting furnaces and casting furnaces, characterized in that: The system includes a horizontally arranged base plate (1), on which a guide rod (2) is vertically fixed. A display (3) is installed at the top of the guide rod (2). Two slide seats (4) are slidably connected to the guide rod (2). A sensor mounting seat (5) is fixed on the slide seat (4). A linear displacement sensor (6) is installed on the sensor mounting seat (5). The two linear displacement sensors (6) are located on the same longitudinal plane.

2. The auxiliary tool for smelting furnaces and casting furnaces according to claim 1, characterized in that: The slide block (4) includes a guide sleeve (401), which is sleeved on the guide rod (2). A tightening bolt (402) is threaded onto the guide sleeve (401). A guide groove (201) is provided on the outer wall of the guide rod (2) along the length direction. The tightening bolt (402) abuts against the guide groove (201).

3. The auxiliary tool for smelting furnaces and casting furnaces according to claim 2, characterized in that: The sensor mounting base (5) includes a sensor housing (501), the linear displacement sensor (6) is fixed inside the sensor housing (501), the sensor housing (501) is disposed on the connecting seat (502), and the connecting seat (502) is fixed on the guide sleeve (401).

4. The auxiliary tool for smelting furnaces and casting furnaces according to claim 3, characterized in that: The sensor housing (501) has bottom edges (503) on both sides, and two U-shaped clips (504) are provided on the bottom edges (503). Fastening bolts (505) are provided on the U-shaped clips (504), and the fastening bolts (505) are threaded onto the connecting seat (502).

5. The auxiliary tool for smelting furnaces and casting furnaces according to claim 1, characterized in that: The base plate (1) is arc-shaped.

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