A structure for distinguishing between the upper and lower surfaces of a shaped refractory article

Abstract

The utility model relates to the field of refractory products for cement kiln, concretely relates to a structure for distinguishing upper and lower pressing surfaces of shaped refractory products, comprising a refractory product body, the refractory product body has six surfaces, which are an upper pressing surface and a lower pressing surface oppositely distributed along the height direction, two first side surfaces oppositely distributed along the length direction, and two second side surfaces oppositely distributed along the width direction, at least one first side surface of the refractory product body is provided with a mark structure for distinguishing the upper and lower pressing surfaces, the mark structure is a through groove with a gradually changing size along the direction from the upper pressing surface to the lower pressing surface, the upper end surface of the through groove constitutes part of the upper pressing surface, the lower end surface constitutes part of the lower pressing surface, and the width of the lower end surface of the through groove is greater than that of the upper end surface. In the utility model, the mark structure is a trapezoidal groove gradually widening along the direction from the upper pressing surface to the lower pressing surface, and this design enables the operator to quickly and accurately determine the upper and lower pressing surfaces of the shaped refractory product by visually observing the width change of the mark structure.

Description

Technical Field

[0001] This utility model relates to the field of refractory products for cement kilns, specifically to a structure for distinguishing the upper and lower pressing surfaces of shaped refractory products. Background Technology

[0002] After years of development, China's cement industry has achieved a significant transformation from a survival-oriented model to a prosperity-oriented one. In this process, the industry has made remarkable achievements in several key areas: leapfrog progress in technological innovation, disruptive breakthroughs in energy conservation, environmental protection, and green development, and substantial changes in development methods and philosophies. In recent years, the cement industry has actively explored development from three dimensions: intelligent manufacturing, green development, and the entire industry chain. This strategic layout is of profound significance, not only being key to the industry's search for new growth points but also representing the main direction and inevitable trend of the cement and building materials industry's transformation and development. With the acceleration of the cement industry's transformation and upgrading, the industry continues to vigorously promote green development and intelligent manufacturing, and regards improving the energy conservation and emission reduction level of the entire industry chain as an important goal. To achieve this goal, the industry has taken a series of powerful measures: by establishing a circular economy production system closely linked to the discharge of various solid wastes and hazardous wastes, it has effectively improved comprehensive disposal capacity and utilization efficiency; by promoting the construction of green mines, it has reduced negative environmental impacts; and by comprehensively promoting the digital transformation of cement intelligent manufacturing, it has improved the level of intelligence in the production process. These measures work together to promote the high-quality development of the industry.

[0003] Against this backdrop, domestic cement companies are actively transforming themselves by relocating from urban areas to industrial parks, moving towards a green and low-energy development model. Adhering to internationally advanced "second-generation cement technology" standards, these companies emphasize the concepts of green and intelligent manufacturing, actively promoting co-processing in cement kilns and the use of alternative fuels. Cement kiln co-processing technology can convert various wastes into energy or raw materials, achieving resource recycling; the use of alternative fuels reduces dependence on traditional fossil fuels, lowering energy consumption and carbon emissions. These measures not only meet the requirements of sustainable development but also bring new development opportunities to the industry.

[0004] Cement kiln production relies heavily on refractory materials. As a key component of the cement kiln lining, the performance of refractory materials directly impacts the stability and quality of cement production. However, recent advancements in cement kiln co-processing technology, short-flame rapid combustion technology, and the increasing size of cement kilns have made kiln operations exceptionally complex. Increased secondary air temperature and faster kiln speeds have led to increasingly severe problems with high mechanical stress damage. Large-scale cement production lines, in particular, compared to ordinary cement kilns, are characterized by higher capacity, higher speed, and greater mechanical stress, placing even stricter requirements on the flatness of refractory materials. If the flatness of the refractory materials does not meet the requirements, gaps and deformation may occur during installation and use, affecting the thermal regime and airflow uniformity within the kiln, thereby impacting cement production quality and the kiln's service life.

[0005] Therefore, distinguishing the upper and lower pressing surfaces of shaped refractory products is crucial in cement kiln production. If this distinction is not accurate, incorrect orientation during installation may affect the product's performance, thus impacting normal cement kiln production. Currently, in actual production and usage scenarios, there is a lack of an effective and intuitive structure or method for distinguishing the upper and lower pressing surfaces of shaped refractory products. Common practices mainly rely on manual experience for judgment, such as observing subtle differences on the product's surface or adding additional markings. However, these methods have significant limitations. When relying on manual experience, different operators may have different experience and judgment standards, leading to inaccurate and inconsistent results. For some shaped refractory products with indistinct surface features, manual observation is difficult to accurately distinguish the upper and lower pressing surfaces, potentially resulting in misjudgments. Furthermore, markings may wear off or disappear during product use, affecting subsequent distinction. For example, during the handling, installation, and use of refractory products, the markings may wear off due to friction with surrounding objects, making it impossible to accurately identify the upper and lower pressing surfaces. In conclusion, developing a structure for distinguishing the upper and lower pressing surfaces of shaped refractory products has significant practical implications. This structure can improve the efficiency of cement kiln production, ensure product quality and safety, and meet the cement industry's urgent need to accurately distinguish the upper and lower pressing surfaces of shaped refractory products. Summary of the Invention

[0006] To address the issues of relying on manual experience to distinguish the upper and lower pressing surfaces of shaped refractory products, which leads to inaccurate and inconsistent judgments by different operators, misjudgment of products with indistinct surface features, and the wear and disappearance of markings during use, thus affecting subsequent differentiation, this invention proposes a structure for distinguishing the upper and lower pressing surfaces of shaped refractory products. This structure avoids the problems of inaccurate and inconsistent judgments caused by differences in the experience and judgment standards of different operators when relying on manual experience. It also prevents the markings from wearing or disappearing during use, thus affecting subsequent differentiation. This structure can improve the efficiency of cement kiln production, ensure product quality and safety, and meet the urgent need of the cement industry for accurate differentiation of the upper and lower pressing surfaces of shaped refractory products.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows: A structure for distinguishing the upper and lower pressing surfaces of a shaped refractory product includes a refractory product body having six surfaces: an upper pressing surface and a lower pressing surface opposite to each other along the height direction, two first side surfaces opposite to each other along the length direction, and two second side surfaces opposite to each other along the width direction. At least one first side surface of the refractory product body is provided with a marking structure for distinguishing the upper and lower pressing surfaces. The marking structure is a through groove with a gradually changing dimension from the upper pressing surface to the lower pressing surface. The upper end face of the through groove forms part of the upper pressing surface, and the lower end face forms part of the lower pressing surface. The width of the lower end face of the through groove is greater than the width of the upper end face. By providing a marking structure for distinguishing the upper and lower pressing surfaces on one of the first side surfaces of the refractory product, this design allows operators to quickly and accurately determine the upper and lower pressing surfaces of the shaped refractory product by visually observing the width change of the marking structure.

[0008] Furthermore, one of the first sides of the refractory product body is a working surface, and the marking structure is centrally located along the working surface. By setting a marking structure on one of the first sides of the refractory product to distinguish the upper and lower pressing surfaces, this design allows operators to quickly and accurately determine the upper and lower pressing surfaces of the shaped refractory product by visually observing the width change of the marking structure.

[0009] Furthermore, the marking structure is a trapezoidal groove. The trapezoidal groove has obvious dimensional variation characteristics, and its structure, which is narrower at the top and wider at the bottom, makes it easy to visually distinguish the upper and lower directions, thereby accurately determining the upper and lower pressing surfaces of the shaped refractory product.

[0010] Furthermore, the trapezoidal groove has an isosceles trapezoidal cross-section, with its two hypotenuses symmetrically distributed on both sides of the central axis. The trapezoidal groove exhibits a distinct dimensional variation, and its narrower top and wider bottom structure makes it visually easy to distinguish the upper and lower directions, thereby accurately determining the upper and lower pressing surfaces of the shaped refractory product.

[0011] Furthermore, the width of the upper surface of the trapezoidal groove ranges from 2-10mm, and the width of the lower surface ranges from 3-16mm. By reasonably setting the width range, the overall quality and reliability of the refractory products are ensured while meeting the differentiation function.

[0012] Furthermore, the trapezoidal groove is integrally formed using a mold during the manufacturing of shaped refractory products, ensuring structural integrity and service life.

[0013] The beneficial effects of this utility model through the above technical solution are as follows: This invention utilizes a marking structure on shaped refractory products to distinguish between the upper and lower pressing surfaces. This marking structure is a through-groove with a gradually changing dimension from the upper to the lower pressing surface. This design allows operators to quickly and accurately identify the upper and lower pressing surfaces of the shaped refractory product by visually observing the width change of the marking structure. Compared to traditional methods that rely on manual experience to observe subtle differences on the product surface or to add additional markings, this invention avoids the problem of inaccurate and inconsistent judgments caused by differences in the experience and judgment standards of different operators. In traditional methods, different operators may have different experience and judgment standards. For some shaped refractory products with indistinct surface features, it is difficult to accurately distinguish between the upper and lower pressing surfaces by manual observation, which may lead to misjudgments. Furthermore, markings may wear off or disappear during product use, affecting subsequent differentiation. The marking structure of this invention is unaffected by these factors, greatly improving the accuracy and consistency of judgment and reducing the possibility of misjudgment.

[0014] In this invention, the marking structure employs a trapezoidal groove, which is integrally molded during the manufacturing of refractory products, ensuring structural integrity. The trapezoidal groove exhibits a distinct dimensional variation; its narrower top and wider bottom structure makes the upper and lower directions easily distinguishable visually, thus accurately identifying the upper and lower pressing surfaces of the shaped refractory product. Compared to ordinary through grooves, the trapezoidal groove is more regular and clearly defined. Even with wear or contamination during production and use, its trapezoidal characteristics remain clearly visible, guaranteeing the reliability and durability of the marking structure. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structure for distinguishing the upper and lower pressing surfaces of shaped refractory products. Figure 1 ; Figure 2 This utility model provides a three-dimensional structure for distinguishing the upper and lower pressing surfaces of shaped refractory products. Figure 2 ; Figure 3 This is a schematic diagram of the application of this utility model in a cement kiln.

[0016] The numbers in the attached diagram are: 1. Refractory product body; 2. Upper pressure surface; 3. Lower pressure surface; 4. Working surface; 5. Trapezoidal groove. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-3 As shown, this embodiment provides a structure for distinguishing the upper and lower pressing surfaces of a shaped refractory product, including a refractory product body 1. The refractory product body 1 has six surfaces, namely an upper pressing surface 2 and a lower pressing surface 3 that are relatively distributed along the height direction, two first side surfaces that are relatively distributed along the length direction, and two second side surfaces that are relatively distributed along the width direction. At least one first side surface of the refractory product body 1 is provided with an identification structure for distinguishing the upper and lower pressing surfaces. The identification structure is a through groove whose size gradually changes along the direction from the upper pressing surface 2 to the lower pressing surface 3. The upper end surface of the through groove constitutes part of the upper pressing surface 2, and the lower end surface constitutes part of the lower pressing surface 3. The width of the lower end surface of the through groove is greater than the width of the upper end surface.

[0018] This invention features a marking structure on one of the first sides of a refractory product to distinguish between the upper and lower pressing surfaces. This design allows operators to quickly and accurately identify the upper and lower pressing surfaces of the shaped refractory product by visually observing the width changes of the marking structure. Compared to traditional methods that rely on manual experience to observe subtle differences on the product surface or make additional markings, this significantly improves the accuracy and consistency of judgment, reduces the possibility of misjudgment, and ensures the correct installation of refractory materials in cement kilns. It effectively solves the problem of lacking an effective and intuitive structure or method for distinguishing the upper and lower pressing surfaces of shaped refractory products in actual production and use scenarios.

[0019] One of the first sides of the refractory product body 1 is the working surface 4, and the marking structure is centrally located along the working surface 4. The working surface 4 is usually the surface where the refractory product plays its main function in the cement kiln. The central location of the marking structure here does not affect the normal use of the working surface 4, and also ensures that the marking structure is more visually prominent, further improving the efficiency and accuracy of distinguishing between the upper and lower pressing surfaces.

[0020] In this example, the marking structure is a trapezoidal groove 5. The trapezoidal groove 5 has a distinct dimensional variation; its narrower top and wider bottom structure makes it visually easy to distinguish the upper and lower directions, thus accurately identifying the upper and lower pressing surfaces of the shaped refractory product. Compared to ordinary through grooves, the trapezoidal groove 5 has a more regular and obvious shape. Even with some wear or contamination during production and use, its trapezoidal features remain clearly visible, ensuring the reliability and durability of the marking structure.

[0021] Specifically, the trapezoidal groove 5 has an isosceles trapezoidal cross-section, with its two hypotenuses symmetrically distributed on both sides of the central axis. The symmetrical structure of the isosceles trapezoid makes the marking structure visually more regular and aesthetically pleasing, while also facilitating observation and judgment by operators. The symmetrically distributed hypotenuses allow for quick identification of the top-narrow, bottom-wide characteristic of the trapezoidal groove 5 from any direction, further improving the accuracy and efficiency of distinguishing between the upper and lower pressing surfaces. Furthermore, this symmetrical structure makes it easier to ensure precision during manufacturing, improving product quality consistency.

[0022] In this embodiment, the width of the upper surface of the trapezoidal groove 5 ranges from 2-10 mm, and the width of the lower surface ranges from 3-16 mm. This design ensures that the marking structure has sufficient dimensional variation to accurately distinguish the upper and lower pressing surfaces, while avoiding problems caused by excessively large or small dimensions. If the size is too small, it may be difficult to observe and identify during production and use; if the size is too large, it may affect the strength and performance of the refractory product body 1. By reasonably setting the width range, the overall quality and reliability of the refractory product are guaranteed while satisfying the distinguishing function.

[0023] It is worth mentioning that the trapezoidal groove 5 is integrally formed by mold during the production of shaped refractory products, ensuring structural integrity and service life.

[0024] The applicant aims to explain that, in the process of detecting the distortion of the upper pressing surface 2 of shaped refractory products, since the upper and lower pressing surfaces have been accurately distinguished through the aforementioned marking structure, operators can directly use tools such as a ruler or feeler gauge to inspect the upper pressing surface 2, eliminating the need for further time spent distinguishing between the upper and lower pressing surfaces. This process greatly simplifies the inspection procedure, reduces unnecessary steps, and thus significantly improves inspection efficiency. For example, in the traditional method, operators need to spend several minutes or even longer to distinguish between the upper and lower pressing surfaces before inspecting for distortion of the upper pressing surface 2; however, with the structure of this utility model, the inspection time is significantly shortened. Furthermore, this intuitive distinction method reduces the experience requirements for operators; even inexperienced personnel can quickly grasp the method of distinguishing between the upper and lower pressing surfaces through simple observation, thereby completing the inspection work more efficiently.

[0025] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A structure for distinguishing the upper and lower pressing surfaces of a shaped refractory product, comprising a refractory product body (1), the refractory product body (1) having six surfaces, namely an upper pressing surface (2) and a lower pressing surface (3) distributed opposite to each other along the height direction, two first side surfaces distributed opposite to each other along the length direction, and two second side surfaces distributed opposite to each other along the width direction, characterized in that, At least one first side of the refractory product body (1) is provided with an identification structure for distinguishing the upper and lower pressure surfaces. The identification structure is a through groove whose size gradually changes along the direction from the upper pressure surface (2) to the lower pressure surface (3). The upper end face of the through groove constitutes part of the upper pressure surface (2), and the lower end face constitutes part of the lower pressure surface (3). The width of the lower end face of the through groove is greater than the width of the upper end face.

2. The structure for distinguishing the upper and lower pressing surfaces of a shaped refractory product according to claim 1, characterized in that, One of the first sides of the refractory product body (1) is the working surface (4), and the marking structure is centrally located along the working surface (4).

3. A structure for distinguishing the upper and lower pressing surfaces of a shaped refractory product according to claim 1, characterized in that, The marking structure is a trapezoidal groove (5).

4. A structure for distinguishing the upper and lower pressing surfaces of a shaped refractory product according to claim 3, characterized in that, The trapezoidal groove (5) has an isosceles trapezoidal cross-section, with its two hypotenuses symmetrically distributed on both sides of the central axis.

5. A structure for distinguishing the upper and lower pressing surfaces of a shaped refractory product according to claim 3, characterized in that, The width of the upper top surface of the trapezoidal groove (5) ranges from 2 to 10 mm, and the width of the lower bottom surface ranges from 3 to 16 mm.

6. A structure for distinguishing the upper and lower pressing surfaces of a shaped refractory product according to claim 3, characterized in that, The trapezoidal groove (5) is integrally formed by mold during the production of shaped refractory products.

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