Rotary kiln cylinder gasket device

Abstract

The utility model relates to a rotary kiln barrel gasket device, relates to the technical field of rotary kiln equipment, and aims to solve the problem that gaskets are short in service life due to abrasion. The rotary kiln barrel gasket device comprises gasket bases arranged between a barrel and an outer rolling ring, the number of the gasket bases is multiple, and the multiple sets of gasket bases are arranged in an array mode in the circumferential direction of the outer rolling ring; each gasket base is detachably provided with a plurality of wear-resisting blocks, the wear-resisting blocks penetrate through the corresponding gasket bases, the outer surface of each wear-resisting block is provided with a graphite coating, and the distribution density of the wear-resisting blocks on the gasket bases is changed in a forward gradient mode in the axial direction of the barrel. Wherein the distribution density of the wear-resistant blocks in the discharge end area of the gasket base is greater than that in the feed end area of the gasket base. The gasket device has the effect of effectively prolonging the service life of the gasket device.

Description

Technical Field

[0001] This application relates to the field of rotary kiln equipment technology, and in particular to a rotary kiln shell gasket device. Background Technology

[0002] In the operation of lime kiln equipment, the kiln gasket plays a crucial role. Its core functions are mainly reflected in three aspects: sealing, pressure bearing, and heat insulation. The sealing function prevents the leakage of high-temperature gases and dust inside the kiln, ensuring the safety and stability of the production environment; the pressure bearing function ensures that the gasket can maintain its structural integrity under the high-pressure environment inside the kiln, maintaining the normal operation of the equipment; the heat insulation function effectively reduces the loss of heat from the kiln, improving energy utilization efficiency.

[0003] The operating conditions in lime kilns are extremely harsh, with high temperatures and corrosion being prominent characteristics. In such an environment, the mainstream gasket material is currently Q345. This metal gasket has good high-temperature resistance and chemical stability, making it suitable for high-temperature and corrosive conditions, and it can maintain its sealing performance in long-term high-temperature environments.

[0004] However, these materials also face many challenges in practical applications. For example, under long-term high temperature and corrosive environment, the wear problem of gaskets becomes increasingly prominent, affecting their service life and performance. Therefore, there is an urgent need to develop new wear-resistant lime kiln cylinder gaskets. Utility Model Content

[0005] To address the problem of short service life due to wear of gaskets, this application provides a rotary kiln cylinder gasket device.

[0006] The rotary kiln shell gasket device provided in this application adopts the following technical solution:

[0007] A rotary kiln cylinder gasket device includes gasket bases arranged between the cylinder and the outer rolling ring. Multiple sets of gasket bases are arranged in an array along the circumferential direction of the outer rolling ring. Several wear-resistant blocks can be detachably mounted on any of the gasket bases, and each wear-resistant block penetrates the corresponding gasket base. The outer surface of each wear-resistant block is coated with a graphite layer. The distribution density of the wear-resistant blocks on the gasket base exhibits a positive gradient along the axial direction of the cylinder. The distribution density of the wear-resistant blocks in the discharge end region of the gasket base is greater than that in the feed end region of the gasket base.

[0008] Due to the long-term high temperature and corrosive environment, the wear of the gaskets in the gasket device has become increasingly prominent, affecting its service life and performance. By adopting the above technical solution, including multiple sets of gasket bases, the gasket bases are installed between the cylinder and the outer rolling ring, and several wear-resistant blocks are detachably installed on the gasket bases. At the same time, the distribution density of wear-resistant blocks in the discharge end area of ​​the gasket base is greater than that in the feed end area of ​​the gasket base.

[0009] When the lime kiln is running, the cylinder begins to rotate, and the material undergoes high-temperature calcination and chemical reaction inside the kiln. At this time, the gasket base of the new gasket device is connected to the cylinder and the outer rolling ring. The wear-resistant blocks distributed on the gasket base directly bear the test of multiple harsh working conditions such as material friction, high temperature and corrosion. Because the new gasket device increases the density of wear-resistant blocks in severely worn areas such as the discharge end, these wear-resistant blocks made of high wear-resistant graphite material can effectively resist high temperature, corrosion and friction, greatly slowing down the wear rate. At the same time, the self-lubricating property of graphite material also reduces the coefficient of friction between the wear-resistant blocks and the cylinder and the outer rolling ring, further reducing wear. Even if some wear-resistant blocks reach the replacement standard due to long-term wear, the operator does not need to stop the machine to replace the entire gasket. They can simply remove the worn wear-resistant blocks from the gasket base and install new wear-resistant blocks.

[0010] By ingeniously designing a gasket base, wear-resistant blocks, and graphite coating, along with the disassembled wear-resistant blocks and the graphite coating on their surface, the problem of severe wear on gaskets under long-term high-temperature and corrosive environments is cleverly solved. The high-density design of the wear-resistant blocks in the discharge end area allows the wear-resistant blocks, made of high-wear-resistant graphite material, to effectively resist harsh working conditions, greatly slowing down the wear rate. At the same time, the self-lubricating properties of graphite material further reduce the coefficient of friction and reduce wear. Even if some wear-resistant blocks need to be replaced due to long-term wear, operators do not need to stop the machine to replace the entire gasket; they only need to simply disassemble and install new wear-resistant blocks. This not only improves the continuity and stability of equipment operation but also reduces maintenance costs and time, effectively extending the service life of the gasket device, improving overall performance, and providing a strong guarantee for the efficient operation of rotary kiln equipment.

[0011] Optionally, the gasket base has a square plate structure, and the gasket base material is a wear-resistant metal plate.

[0012] By adopting the above technical solution, the gasket base has a square plate structure, and the gasket base material is a wear-resistant metal plate. Through the setting of the gasket base shape and material, the square plate structure has a regular geometric shape and uniform force on each side. When subjected to the pressure from the cylinder and the outer rolling ring and the force of material friction, it can maintain good structural stability and is not easy to deform or be damaged. At the same time, the wear-resistant metal plate has high strength, high hardness and good wear resistance, which can effectively resist the erosion of harsh working conditions such as high temperature, corrosion and friction, and reduce the replacement frequency due to wear.

[0013] Optionally, the gasket base is provided with two dovetail grooves, which are respectively provided on both sides of the width direction of the gasket base.

[0014] By adopting the above technical solution, the dovetail groove is opened on the gasket base; through the setting of the dovetail groove, the unique structural shape of the dovetail groove can provide a stable installation foundation for the mating parts, and its wedge structure can make the parts fit tightly after installation, effectively preventing the parts from loosening or falling off due to vibration, friction and other factors during equipment operation, and greatly enhancing the overall structural stability of the gasket device.

[0015] Optionally, each of the wear-resistant blocks is provided with a threaded section, and the gasket base is provided with a plurality of threaded holes adapted to the threaded section.

[0016] By adopting the above technical solution, the threaded section is integrally formed on the wear-resistant block, and the wear-resistant block is installed in the threaded hole of the gasket base through the threaded section. The installation firmness is greatly improved by the setting of the threaded section and the threaded hole. The threaded connection has a self-locking characteristic. During the operation of the equipment, even when subjected to multiple complex working conditions such as material friction, high temperature and vibration, the wear-resistant block can be tightly fixed on the gasket base, which is not easy to loosen or fall off. This effectively ensures the stability and reliability of the overall structure of the gasket device. At the same time, it is easy to disassemble and maintain. With the help of appropriate tools, such as wrenches, the worn wear-resistant block can be easily unscrewed from the threaded hole, and then the new wear-resistant block can be screwed into the threaded hole to complete the installation. There is no need to stop the machine for large-scale disassembly of the entire gasket device, which greatly shortens the maintenance time and improves the continuity of equipment operation.

[0017] Optionally, one end of any of the wear-resistant blocks is provided with a hexagonal boss, which presses against the surface of the gasket base.

[0018] By adopting the above technical solution, the hexagonal boss is integrally molded onto the wear-resistant block. The hexagonal boss structure allows operators to easily tighten or loosen the wear-resistant block using common tools such as hex wrenches, eliminating the need for custom-made special tools and simplifying the installation and maintenance process. Simultaneously, the pressing contact between the hexagonal boss and the gasket base increases the contact area and friction between the wear-resistant block and the gasket base, effectively preventing the wear-resistant block from loosening or shifting due to vibration, friction, or other factors during equipment operation, thus ensuring the stability of the wear-resistant block installation.

[0019] Optionally, the graphite coating is disposed on the outermost layer at both ends of the wear-resistant block.

[0020] By adopting the above technical solution, a graphite coating is wrapped around the outermost layer at both ends of the wear-resistant block. Through the setting of the graphite coating, the graphite coating has excellent self-lubricating properties. During the operation of the equipment, it can effectively reduce the coefficient of friction between the wear-resistant block and the cylinder, outer rolling ring and other adjacent components, reduce the heat and wear generated by friction, thereby extending the service life of the wear-resistant block and related components and reducing equipment maintenance costs.

[0021] Optionally, the thickness of the graphite coating ranges from 3mm to 5mm.

[0022] By adopting the above technical solution, the thickness of the graphite coating ranges from 3mm to 5mm. With the thickness range set, the graphite coating within this range has sufficient density and thickness, which can effectively block corrosive substances in the material and external environmental factors from eroding the wear-resistant block, enhance the wear-resistant block's corrosion resistance under harsh working conditions, and ensure the long-term stable operation of the equipment.

[0023] Optionally, the thickness of any of the wear-resistant blocks includes a basic working layer and a redundant compensation layer, wherein the thickness of the redundant compensation layer of the wear-resistant block accounts for 20%-35% of the total thickness.

[0024] By adopting the above technical solution, the thickness of the wear-resistant block includes a basic working layer and a redundant compensation layer. The basic working layer, as the core working part of the wear-resistant block, provides reliable wear-resistant support for equipment operation, ensuring effective resistance to material friction, high temperatures, and corrosion under normal operating conditions, thus guaranteeing stable equipment operation. Meanwhile, the redundant compensation layer is of significant strategic importance. During long-term equipment operation, the basic working layer will inevitably experience some degree of wear, while the redundant compensation layer, accounting for 20%-35% of the total thickness, provides additional thickness reserves for the wear-resistant block.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. By ingeniously solving the problem of severe wear of gaskets under long-term high temperature and corrosive environment through the setting of gasket base, wear-resistant blocks, graphite coating, etc., the disassembled wear-resistant blocks and the graphite coating on the surface of the wear-resistant blocks, the high-density design of the wear-resistant blocks in the discharge end area enables the wear-resistant blocks made of high wear-resistant graphite material to effectively resist harsh working conditions and greatly slow down the wear rate. At the same time, the self-lubricating property of graphite material further reduces the coefficient of friction and reduces wear. Even if some wear-resistant blocks need to be replaced due to long-term wear, the operator does not need to stop the machine to replace the entire gasket. It only needs to be simply disassembled and new wear-resistant blocks installed. This not only improves the continuity and stability of equipment operation, but also reduces maintenance costs and time, effectively extends the service life of the gasket device, improves the overall performance, and provides a strong guarantee for the efficient operation of rotary kiln equipment.

[0027] 2. Through the setting of the dovetail groove, the unique structural shape of the dovetail groove can provide a stable installation foundation for the mating parts. Its wedge structure allows the parts to fit tightly after installation, effectively preventing the parts from loosening or falling off due to vibration, friction and other factors during equipment operation, and greatly enhancing the overall structural stability of the gasket device.

[0028] 3. The hexagonal boss design allows operators to easily tighten or loosen the wear-resistant block using common tools such as hex wrenches, eliminating the need for custom-made tools and simplifying the installation and maintenance process. Simultaneously, the pressure contact between the hexagonal boss and the gasket base increases the contact area and friction between the wear-resistant block and the gasket base, effectively preventing the wear-resistant block from loosening or shifting due to vibration and friction during equipment operation, thus ensuring the stability of the wear-resistant block installation. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a rotary kiln cylinder gasket device in an embodiment of this application.

[0030] Figure 2 This is a structural schematic diagram illustrating the function of the gasket in the embodiments of this application.

[0031] Figure 3 This is a schematic diagram illustrating the structure of the gasket base in the embodiments of this application.

[0032] Figure 4 This is a structural schematic diagram illustrating the installation relationship of the wear-resistant blocks in the embodiments of this application.

[0033] Figure 5 This is a schematic diagram illustrating the structure of the wear-resistant block in the embodiments of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Cylinder body; 2. Outer rolling ring; 3. Gasket base; 4. Wear-resistant block; 5. Dovetail groove; 6. Threaded section; 7. Threaded hole; 8. Hexagonal boss; 9. Graphite coating. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0036] This application discloses a rotary kiln cylinder gasket device. (Refer to...) Figure 1 and Figure 2 The rotary kiln cylinder gasket device includes a gasket base 3. In this embodiment, the gasket base 3 is located in the gap between the cylinder 1 and the outer rolling ring 2. There are multiple sets of gasket bases 3, and the multiple sets of gasket bases 3 are arranged in an array along the circumferential direction of the outer rolling ring 2.

[0037] Reference Figure 1 and Figure 2Each gasket base 3 has a square plate structure, and the gasket base 3 is made of wear-resistant metal plate. The square plate structure has a regular geometric shape and the force on each side is uniform. When subjected to the pressure from the cylinder 1 and the outer rolling ring 2 as well as the force of material friction, it can maintain good structural stability and is not easy to deform or be damaged. At the same time, the wear-resistant metal plate has high strength, high hardness and good wear resistance, which can effectively resist the erosion of harsh working conditions such as high temperature, corrosion and friction, and reduce the replacement frequency due to wear.

[0038] Reference Figure 2 and Figure 3 The gasket base 3 is provided with dovetail grooves 5. In this embodiment, there are two dovetail grooves 5, which are respectively opened on both sides of the width direction of the gasket base 3. In this embodiment, the dovetail grooves 5 of the gasket base 3 can cooperate with the interface of the outer rolling ring 2 to ensure installation accuracy. The unique structural shape of the dovetail groove 5 can provide a stable installation foundation for the component that it cooperates with. Its wedge structure allows the component to be tightly locked after installation, effectively preventing the component from loosening or falling off due to vibration, friction and other factors during equipment operation, and greatly enhancing the overall structural stability of the gasket device.

[0039] Reference Figure 3 and Figure 4 Each gasket base 3 is equipped with several wear-resistant blocks 4, and the wear-resistant blocks 4 penetrate the corresponding gasket base 3. In this embodiment, the thickness of the wear-resistant block 4 includes a basic working layer and a redundant compensation layer, wherein the thickness of the redundant compensation layer of the wear-resistant block 4 accounts for 20%-35% of the total thickness. The basic working layer, as the core working part of the wear-resistant block 4, provides reliable wear-resistant support for equipment operation, ensuring that it can effectively resist the effects of material friction, high temperature and corrosion under normal working conditions, and ensuring stable operation of the equipment. At the same time, the setting of the redundant compensation layer has important strategic significance. During the long-term operation of the equipment, the basic working layer will inevitably experience a certain degree of wear, while the redundant compensation layer, which accounts for 20%-35% of the total thickness, provides additional thickness reserves for the wear-resistant block 4.

[0040] Reference Figure 3 In this embodiment, the distribution density of wear-resistant blocks 4 on the gasket base 3 varies in a positive gradient along the axial direction of the cylinder 1. The distribution density of wear-resistant blocks 4 in the discharge end area of ​​the gasket base 3 is greater than that in the feed end area of ​​the gasket base 3. Since the new gasket device increases the density of wear-resistant blocks 4 in severely worn areas such as the discharge end, these wear-resistant blocks 4 made of high wear-resistant graphite material can effectively resist high temperature, corrosion and friction, and greatly slow down the wear rate.

[0041] Reference Figure 3 and Figure 5The wear-resistant block 4 has an integrally formed threaded section 6, and the gasket base 3 has several threaded holes 7 through it. The number of threaded holes 7 is the same as the number of wear-resistant blocks 4. The wear-resistant block 4 engages with the threaded holes 7 of the gasket base 3 through the threaded section 6. The threaded connection has a self-locking characteristic. During equipment operation, even when subjected to multiple complex working conditions such as material friction, high temperature and vibration, the wear-resistant block 4 can be tightly fixed on the gasket base 3, and it is not easy to loosen or fall off. This effectively ensures the stability and reliability of the overall structure of the gasket device, and at the same time, it is easy to disassemble and maintain. With the help of appropriate tools, such as wrenches, the worn wear-resistant block 4 can be easily unscrewed from the threaded hole 7, and then the new wear-resistant block 4 can be screwed into the threaded hole 7 to complete the installation. There is no need to stop the machine to disassemble the entire gasket device on a large scale, which greatly shortens the maintenance time and improves the continuity of equipment operation.

[0042] Reference Figure 5 One end of the wear-resistant block 4 is integrally formed with a hexagonal boss 8, which presses against the surface of the gasket base 3. The structure of the hexagonal boss 8 allows operators to easily tighten or loosen the wear-resistant block 4 using common tools such as hexagonal wrenches, without the need for additional custom-made special tools, simplifying the installation and maintenance process. At the same time, the pressing contact between the hexagonal boss 8 and the surface of the gasket base 3 increases the contact area and friction between the wear-resistant block 4 and the gasket base 3, effectively preventing the wear-resistant block 4 from loosening or shifting due to vibration, friction and other factors during equipment operation, ensuring the stability of the wear-resistant block 4 installation.

[0043] Reference Figure 5 The outer surface of the wear-resistant block 4 is covered with a graphite coating 9, which is arranged at the outermost ends of the wear-resistant block 4. The thickness of the graphite coating 9 ranges from 3mm to 5mm. The graphite coating 9 within this thickness range has sufficient density and thickness to effectively block corrosive substances in the material and external environmental factors from eroding the wear-resistant block 4, enhance the corrosion resistance of the wear-resistant block 4 under harsh working conditions, and ensure the long-term stable operation of the equipment.

[0044] The implementation principle of the rotary kiln cylinder 1 gasket device in this application embodiment is as follows: When the lime kiln equipment is running, the cylinder 1 starts to rotate, and the material undergoes high-temperature calcination and chemical reaction in the kiln. At this time, the gasket base 3 of the new gasket device is connected to the cylinder 1 and the outer rolling ring 2. The wear-resistant blocks 4 distributed on the gasket base 3 directly bear the test of multiple harsh working conditions such as material friction, high temperature and corrosion. Since the new gasket device increases the density of the wear-resistant blocks 4 in severely worn areas such as the discharge end, these wear-resistant blocks 4 made of high wear-resistant graphite material can effectively resist high temperature, corrosion and friction, greatly slowing down the wear rate. At the same time, the self-lubricating property of graphite material also reduces the friction coefficient between the wear-resistant blocks 4 and the cylinder 1 and the outer rolling ring 2, further reducing wear. Even if some wear-resistant blocks 4 reach the replacement standard due to long-term wear, the operator does not need to stop the machine to replace the entire gasket. It is only necessary to simply remove the worn wear-resistant blocks 4 from the gasket base 3 and install new wear-resistant blocks 4.

[0045] By ingeniously designing the gasket base 3, wear-resistant blocks 4, and graphite coating 9, along with the disassembled wear-resistant blocks 4 and the graphite coating 9 on their surface, the problem of severe wear of the gasket under long-term high-temperature and corrosive environments is cleverly solved. The high-density design of the wear-resistant blocks 4 in the discharge end area allows the wear-resistant blocks 4, made of high-wear-resistant graphite material, to effectively resist harsh working conditions and greatly slow down the wear rate. At the same time, the self-lubricating properties of graphite material further reduce the coefficient of friction and reduce wear. Even if some wear-resistant blocks 4 need to be replaced due to long-term wear, operators do not need to stop the machine to replace the entire gasket; they only need to simply disassemble and install new wear-resistant blocks 4. This not only improves the continuity and stability of equipment operation but also reduces maintenance costs and time, effectively extends the service life of the gasket device, improves overall performance, and provides a strong guarantee for the efficient operation of rotary kiln equipment.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotary kiln cylinder gasket device, characterized in that: The device includes a gasket base arranged between the cylinder and the outer rolling ring. The number of gasket bases is multiple sets, and the multiple sets of gasket bases are arranged in an array along the circumferential direction of the outer rolling ring. Several wear-resistant blocks can be detachably installed on any of the gasket bases. The wear-resistant blocks penetrate the corresponding gasket bases. The outer surface of each wear-resistant block is provided with a graphite coating. The distribution density of the wear-resistant blocks on the gasket bases varies in a positive gradient along the axial direction of the cylinder. The distribution density of the wear-resistant blocks in the discharge end region of the gasket bases is greater than that in the feed end region of the gasket bases.

2. The rotary kiln cylinder gasket device according to claim 1, characterized in that: The gasket base has a square plate-like structure, and the gasket base material is a wear-resistant metal plate.

3. The rotary kiln cylinder gasket device according to claim 2, characterized in that: The gasket base is provided with two dovetail grooves, which are respectively located on both sides of the width direction of the gasket base.

4. The rotary kiln cylinder gasket device according to claim 1, characterized in that: Each of the wear-resistant blocks is provided with a threaded section, and the gasket base is provided with a plurality of threaded holes adapted to the threaded section.

5. A rotary kiln cylinder gasket device according to claim 4, characterized in that: One end of any of the wear-resistant blocks is provided with a hexagonal boss, which presses against the surface of the gasket base.

6. The rotary kiln shell gasket device according to claim 1, characterized in that: The graphite coating is arranged on the outermost layer at both ends of the wear-resistant block.

7. A rotary kiln cylinder gasket device according to claim 6, characterized in that: The thickness of the graphite coating ranges from 3mm to 5mm.

8. A rotary kiln cylinder gasket device according to claim 1, characterized in that: The thickness of any of the wear-resistant blocks includes a basic working layer and a redundant compensation layer, wherein the thickness of the redundant compensation layer of the wear-resistant block accounts for 20%-35% of the total thickness.

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