Refractory mortar smearing tool for intermediate frequency furnace inductor

Abstract

The utility model provides an intermediate frequency furnace inductor refractory mortar daubing tooling, including inductor lower die, inductor upper die and scraping rod, inductor lower die includes lower die ring, connecting block and fixed bolt, the lower die ring is circular ring structure, connecting block is installed above lower die ring joint, and the fixed bolt is installed on the lower die ring joint. The connecting blocks and the lower die ring are fixed through fixing bolts; the sensor upper die comprises a jackscrew, an L-shaped fixing block, a cushion block, an upper die ring and a sawtooth ring, the sawtooth ring is welded to the inner diameter of the lower end face of the upper die ring, the L-shaped fixing block is welded to the upper die ring, a threaded hole is formed in the L-shaped fixing block, the jackscrew is installed in the threaded hole, and the cushion block is ejected by adjusting the jackscrew. And the scraping rod is arranged between the sensor lower mold and the sensor upper mold. The utility model aims to solve the problem that the safety performance of a frequency conversion furnace is reduced due to uneven thickness and unevenness of cement when refractory cement in an inductor is manually smeared only by a constructor.

Description

Technical Field

[0001] The utility model belongs to the field of refractory mortar smearing construction of an inductor, and particularly relates to a refractory mortar smearing tool for an intermediate frequency furnace inductor. Background Technique

[0002] A frequency conversion furnace is an important device for heating and melting metals by using the principle of electromagnetic induction through a frequency conversion device and an induction coil. The refractory mortar of the induction coil is very important for the operation of the frequency conversion furnace. It plays a very important role in protecting the induction coil, extending the service life of the equipment, improving the efficiency and performance of the furnace, and ensuring safe production. Therefore, correctly smearing refractory on the inductor is crucial for the use of the frequency conversion furnace. However, in the actual process of smearing refractory mortar on the inductor, due to solely relying on the experience of construction workers for mortar construction, it is greatly affected by uncontrollable factors of people, and it is extremely easy to cause uneven thickness and unevenness of the smeared mortar. Moreover, when there is local deformation of the inductor, it is difficult for construction workers to detect, and finally the smeared mortar will also be uneven. Therefore, in order to ensure that the refractory mortar is smeared evenly and smoothly on the inductor, it is very important to use a tool when smearing the refractory mortar of the intermediate frequency furnace inductor.

[0003] The original mortar smearing method for the inductor; in the original mortar smearing method, construction workers smear the inductor mortar by experience, and it is difficult to accurately control the thickness of the smeared mortar and it is uneven.

[0004] Problems existing in the original mortar smearing method for the inductor; it is difficult to control the thickness of the smeared mortar: when the thickness of the mortar is too thin, after the furnace lining is damaged, the mortar cannot effectively prevent the molten metal from corroding the inductor, affecting the safe use of the intermediate frequency furnace; when the thickness of the mortar is too thick, the thickness of the intermediate frequency furnace lining is correspondingly reduced, and the service life of the furnace lining will be greatly reduced. The thickness of the mortar is uneven and the surface is uneven: the uneven thickness of the mortar will cause the uneven thickness of the frequency conversion furnace lining. When in use, the weak direction of the furnace lining will be damaged first, and the furnace lining in other directions is intact, and the furnace must be rebuilt, resulting in a huge waste of furnace lining materials; for an intermediate frequency furnace with a bottom pushing device, the unevenness and non-smoothness of the mortar inside the inductor will greatly increase the friction between the furnace lining material and the refractory mortar, and it is difficult for the old furnace lining material to move smoothly. Content of the Utility Model

[0005] The utility model provides a refractory mortar smearing tool for an intermediate frequency furnace inductor, which solves the problems of uneven thickness of the mortar smeared inside the inductor and unevenness of the mortar surface.

[0006] The technical solution of the utility model is realized as follows: A refractory mortar coating tooling for an intermediate frequency furnace inductor, including an inductor lower mold, an inductor upper mold, and a scraping rod. The inductor lower mold includes a lower mold ring, a connecting block, and a fixing bolt. The lower mold ring is a circular ring structure, and a connecting block is installed above the connection of the lower mold ring. The connecting block and the lower mold ring are fixed by a fixing bolt. The inductor upper mold includes a set screw, an L-shaped fixing block, a cushion block, an upper mold ring, and a serrated ring. A serrated ring is welded to the inner diameter of the lower end face of the upper mold ring, an L-shaped fixing block is welded on the upper mold ring, a threaded hole is provided on the L-shaped fixing block, and a set screw is installed in the threaded hole. By adjusting the set screw to press against the cushion block, the scraping rod is arranged between the inductor lower mold and the inductor upper mold.

[0007] This application document aims at the problems that when simply relying on construction workers to manually apply refractory mortar inside the inductor, it is easy to have uneven thickness and unevenness of the mortar, resulting in a reduction in the safety performance of the frequency conversion furnace, a significant shortening of the service life of the furnace lining, serious waste of furnace lining materials, a large friction force between the furnace lining materials and the refractory mortar, and the bottom pushing device cannot smoothly push out the old furnace materials. It provides a refractory mortar coating tooling for a frequency conversion furnace inductor. This tooling can effectively ensure the coating thickness of the mortar inside the frequency conversion furnace inductor, ensure that the surface of the applied mortar is smooth and flat, improve the coating quality of the mortar inside the frequency conversion furnace inductor, and thus ensure the normal use of the frequency conversion furnace.

[0008] The inductor lower mold in the application document is mainly composed of a lower mold ring, a connecting block, and a fixing bolt. Determine the inner and outer diameters of the lower mold ring according to the size of the inductor to be coated and the thickness of the mortar. Divide the lower mold ring into three equal parts, and use the connecting block to connect the mold rings into one body. Fill the space between the lower mold and the inner wall of the inductor with insulating blocks and adjust the concentricity of the lower mold and the inductor. The inductor upper mold is mainly composed of a set screw, an L-shaped fixing block, a cushion block, an upper mold ring, and a serrated ring. Determine the inner diameter of the upper mold ring according to the size of the inductor to be coated and the thickness of the mortar. Weld a serrated ring along the inner diameter of the upper mold ring. The serrated ring makes the upper opening of the applied mortar have an irregular interface, which is convenient for using mortar to correct the gap between the upper pressing ring and the coil after the inductor is installed. The set screw presses against the top block. After adjusting the concentricity of the upper mold and the inductor, tighten all the set screws around the mold ring to fix the upper mold ring. When using the tooling to apply refractory mortar to the inductor, select a scraping rod with neat and smooth edges. The scraping rod is straight and has sufficient strength, and it will not deform when constructing the surface of the mortar with the scraping rod.

[0009] As a preferred embodiment, the inductor lower mold and the inductor upper mold are sleeved on the induction coil and are concentric with the inductor.

[0010] As a preferred embodiment, the scraping rod adopts an edge scraping rod, the edges of the scraping rod are neat and smooth, and the flatness of the surface of the scraping rod in contact with the mud scraping is less than 1.5 mm.

[0011] As a preferred embodiment, the lower die of the inductor is arranged by annularly connecting three lower die rings, and connecting blocks are respectively arranged at the joints of the three lower die rings.

[0012] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: The lower die of the inductor and the upper die of the inductor are fixed by fixing bolts to ensure the stability and accuracy during the smearing process. The inner diameter of the upper die ring is welded with a serrated ring, and the serrated ring makes the upper opening of the smeared clay have an irregular interface, which is convenient for correcting the gap between the upper pressing ring and the coil with clay after the inductor is installed. The setting of the set screw, L-shaped fixing block and cushion block makes the fixing of the upper die more convenient. The setting of the scraping rod can effectively smear the clay and improve work efficiency. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description 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 based on these drawings.

[0014] Figure 1 Structural diagram of the lower die of the inductor of the present utility model;

[0015] Figure 2 Structural diagram of the upper die of the inductor of the present utility model;

[0016] Figure 3 Installation schematic diagram of the present utility model.

[0017] In the figure, 1 - lower die of the inductor; 11 - lower die ring, 12 - connecting block, 13 - fixing bolt, 2 - upper die of the inductor; 21 - set screw, 22 - L-shaped fixing block, 23 - cushion block, 24 - upper die ring, 25 - serrated ring, 3 - scraping rod. Detailed Embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0019] Embodiment:

[0020] As Figures 1 to 3As shown in the figure, a refractory mortar coating tooling for an intermediate frequency furnace inductor includes an inductor lower mold 1, an inductor upper mold 2, and a scraping rod 3. The inductor lower mold 1 includes a lower mold ring 11, a connecting block 12, and fixing bolts 13. The lower mold ring 11 is a circular ring structure. Above the connection of the lower mold ring 11, a connecting block 12 is installed, and the connecting block 12 and the lower mold ring 11 are fixed by fixing bolts 13. The inductor upper mold 2 includes a set screw 21, an L-shaped fixing block 22, a cushion block 23, an upper mold ring 24, and a serrated ring 25. The inner diameter of the lower end face of the upper mold ring 24 is welded with a serrated ring 25. An L-shaped fixing block 22 is welded on the upper mold ring 24. A threaded hole is provided on the L-shaped fixing block 22, and a set screw 21 is installed in the threaded hole. By adjusting the set screw 21 to press against the cushion block 23, the scraping rod 3 is arranged between the inductor lower mold 1 and the inductor upper mold 2.

[0021] The working principle and working process of this refractory mortar coating tooling for the intermediate frequency furnace inductor are as follows: Install the inductor lower mold at the bottom of the inductor and fix it on the inductor through the connecting block and fixing bolts. Install the inductor upper mold on the top of the inductor. The inner diameter of the lower end of the upper mold ring is welded with a serrated ring. An L-shaped fixing block is welded on the upper mold ring, and a threaded hole is provided on the L-shaped fixing block. A set screw is installed in the threaded hole, and a cushion block is installed on one side of the set screw. During the coating process, place the scraping rod between the inductor lower mold and the inductor upper mold to coat the refractory mortar. The coating thickness is determined by the inner diameters of the upper and lower molds. During the coating process, the mold rings are locked and the set screws cannot be adjusted to move. After the coating is completed, remove the scraping rod, remove the inductor upper mold and the inductor lower mold, and complete the entire coating work. The serrated ring makes the upper opening of the smeared mortar have an irregular interface, which is convenient for using mortar to correct between the upper pressing ring and the coil after the inductor is installed. The setting of the set screw and the L-shaped fixing block makes the fixing of the upper mold more convenient. The design of the scraping rod is used to coat the mortar, improving work efficiency and coating quality.

[0022] The lower mold 1 and the upper mold 2 of the inductor are sleeved on the induction coil and are concentric with the inductor. Compared with the prior art, the difference of the refractory mortar coating tooling for the intermediate frequency furnace inductor mainly lies in the sleeving and concentric design of the lower mold and the upper mold of the inductor. The specific differences are as follows: The lower mold and the upper mold of the inductor are sleeved on the induction coil, that is, the shapes of the two molds are adapted to the shape of the induction coil, so that during the coating process, they can better fit the surface of the induction coil, ensuring the uniformity and accuracy of the coating. While the traditional coating tooling usually simply fixes the mold on the inductor without the sleeving design. The lower mold and the upper mold of the inductor are concentric with the inductor, that is, the central axes of the two molds coincide with the central axis of the inductor. Such a design can ensure that the gap between the two molds is uniform during the coating process, avoiding the occurrence of uneven coating or missed coating. While the traditional coating tooling generally does not have a concentric design, which easily leads to the problem of uneven coating. Through the sleeving and concentric design, the refractory mortar coating tooling for the intermediate frequency furnace inductor can better adapt to the shape and size of the inductor, improve the accuracy and stability of the coating, and avoid the problems that may occur during the coating process of the traditional tooling. This design can effectively improve the coating quality, reduce the waste of refractory mortar, and improve the work efficiency.

[0023] The lower mold 1 and the upper mold 2 of the inductor are sleeved on the induction coil and are concentric with the inductor. Compared with the prior art, the difference of the refractory mortar coating tooling for the intermediate frequency furnace inductor mainly lies in the sleeving and concentric design of the lower mold and the upper mold of the inductor.

[0024] The specific differences between them are as follows: The lower mold and the upper mold of the inductor are sleeved on the induction coil, that is, the shapes of the two molds are adapted to the shape of the induction coil, so that during the coating process, they can better fit the surface of the induction coil, ensuring the uniformity and accuracy of the coating. Some basic coating tooling usually simply fixes the mold on the inductor without the sleeving design. The lower mold and the upper mold of the inductor are concentric with the inductor, that is, the central axes of the two molds coincide with the central axis of the inductor. Such a design can ensure that the gap between the two molds is uniform during the coating process, avoiding the occurrence of uneven coating or missed coating. While the existing coating tooling generally does not adopt a concentric design, which easily leads to the problem of uneven coating. Through the sleeving and concentric design, the refractory mortar coating tooling for the intermediate frequency furnace inductor can better adapt to the shape and size of the inductor, improve the accuracy and stability of the coating, and avoid the problems that may occur during the coating process of the basic tooling. This design can effectively improve the coating quality, reduce the waste of refractory mortar, and improve the work efficiency.

[0025] The scraping rod 3 is an edge scraping rod with a neat and smooth edge. The flatness of the surface of the scraping rod 3 in contact with the mud scraping is less than 1.5 mm. The basic scraping rod usually has a circular or flat plate shape, while this scraping rod adopts an edge design. The edge of the edge scraping rod has a neat and smooth edge, which helps to better control the coating thickness during the coating process and can reduce the waste of refractory mortar. The flatness of the surface of the scraping rod 3 in contact with the mud scraping is less than 1.5 mm. This means that the flatness of the scraping rod surface is very high, which can ensure uniform contact between the scraping rod and the refractory mortar during the coating process and avoid uneven coating. In contrast, the scraping rods in the prior art may not have such high surface flatness requirements, which may lead to poor coating effects. Through the edge design and highly flat surface, the scraping rod 3 can improve the stability and accuracy of the coating process, thereby improving the coating quality. In addition, this design can also reduce the usage amount of refractory mortar, improve work efficiency, and reduce potential problems during the coating process.

[0026] The lower mold 1 of the inductor is arranged by circularly connecting three lower mold rings 11, and connection blocks 12 are respectively arranged at the connection parts of the three lower mold rings 11. The basic lower mold of the inductor usually consists of a single circular mold, while this design adopts the circular connection of three lower mold rings 11. This multi-ring structure helps to improve the stability and rigidity of the mold, enabling it to better maintain its shape and position during the coating of refractory mortar, reducing deformation and displacement. At the connection part of each lower mold ring 11, a connection block 12 is arranged. These connection blocks 12 help to strengthen the connection between various parts of the mold and further improve the overall stability and reliability of the mold. In contrast, the molds in the prior art may not adopt a similar connection block design, which may lead to loosening or instability at the connection parts of the mold during the coating process. By adopting the multi-ring structure and connection block arrangement, the lower mold 1 of the inductor can better adapt to the shape and size of the inductor, providing higher stability and accuracy. This design helps to improve the quality and efficiency of the coating process, while reducing problems such as uneven coating or missed coating caused by mold instability.

[0027] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A refractory mortar coating tool for medium frequency furnace inductors, characterized in that: The invention comprises a sensor lower mold (1), a sensor upper mold (2) and a scraper rod (3), wherein the sensor lower mold (1) comprises a lower mold ring (11), a connecting block (12) and a fixing bolt (13), wherein the lower mold ring (11) is a circular ring structure, a connecting block (12) is installed above the connection of the lower mold ring (11), and the connecting block (12) and the lower mold ring (11) are fixed by the fixing bolt (13); the sensor upper mold (2) comprises a top screw (21), a L A fixing block (22), a cushion block (23), an upper mold ring (24) and a serrated ring (25); the serrated ring (25) is welded to the inner diameter of the lower end surface of the upper mold ring (24); an L fixing block (22) is welded to the upper mold ring (24); a threaded hole is provided on the L fixing block (22); a top screw (21) is installed in the threaded hole; the cushion block (23) is supported by adjusting the top screw (21); and the scraper rod (3) is arranged between the sensor lower mold (1) and the sensor upper mold (2).

2. A refractory cement coating tool for medium frequency furnace inductor according to claim 1, characterized in that: The inductor lower mold (1) and the inductor upper mold (2) are sleeved on the induction coil and are concentric with the inductor.

3. A refractory cement coating tool for medium frequency furnace inductor according to claim 1, characterized in that: The scraper rod (3) is an edged scraper rod, the edges of the scraper rod are neat and smooth, and the flatness of the contact surface between the scraper rod (3) and the scraped mud is less than 1.5 mm.

4. A refractory cement coating tool for medium frequency furnace inductor according to claim 1, characterized in that: The inductor lower mold (1) is arranged in a ring-shaped manner by connecting three lower mold rings (11), and connecting blocks (12) are respectively arranged at the connection points of the three lower mold rings (11).

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