Composite inner liner rotating focus tank and performance measurement method thereof

Abstract

This invention proposes a composite-lined rotating coke tank and its performance measurement method. The coke tank adopts a multi-level anchoring system consisting of an anchoring base, plug-in end posts, anchoring core posts, and anchoring end caps. Through threaded connections, welding fixation, and deflection angle adjustment, a stable connection between the heat-insulating inner liner and the tank shell is achieved, effectively improving the overall structural stability. The heat-insulating gasket and the heat-insulating inner liner work synergistically. The former uses a polymer-bonded heat-insulating fiber blanket, while the latter uses low-cement castable, significantly reducing heat transfer and thermal stress concentration, and improving temperature resistance. The heat-insulating inner liner features a comprehensive protective design, enhancing wear resistance and extending service life. The method arranges temperature and stress measuring points evenly along the circumferential and generatrix directions to ensure accurate test results. Temperature is measured using a combination of thermocouples and industrial temperature guns, and data is collected by dynamic signal equipment and a computer. Stress is measured using strain gauges, providing real-time dynamic data and a reliable basis for the safe operation of the coke tank.

Description

Technical Field

[0001] This invention relates to metallurgical coking equipment, and more particularly to a composite-lined rotary coke jar and its performance measurement method. Background Technology

[0002] Traditional dry-quenching coke cans are frame structures welded from steel plates and structural steel, lined with metal plates. When red-hot coke at ~1050℃ is loaded into the can, the surface temperature of the metal plate quickly rises to over 400℃ due to the high thermal conductivity of the metal plate. This high surface temperature results in significant heat loss during coke transport and causes the plate to fail quickly, with an average service life of about six months. Irregular deformation of the plate due to heat increases the gap between the plate and the can body, leading to air leakage, coke combustion, and further damage to the plate and can body. In more serious cases, the plate may detach and enter the dry-quenching furnace, causing the rotary discharge valve to jam and scratching the coke conveyor belt. These coke cans require more maintenance and repair during use, and frequent replacement of expensive metal plates, resulting in high operating costs. With the continuous intensification of production, the traditional coke can construction is no longer suitable for the current context of energy conservation, environmental protection, and increasingly fast-paced production, and urgently needs improvement. Summary of the Invention

[0003] The purpose of this invention is to provide a composite-lined rotary coke tank and a method for measuring its performance.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows:

[0005] A composite lined rotary coke tank includes a tank shell formed by assembling plates, the inner wall of which is covered with a heat-insulating gasket, and further includes:

[0006] An anchor body, which has multiple parts, each anchor body is installed on the inner wall of the tank shell and protrudes from the heat insulation gasket, and has a plug-in through hole inside.

[0007] The plug-in end post has multiple parts, the length of which is greater than the length of the anchor body. Each plug-in end post is inserted into the plug-in through hole, and the deflection angle can be adjusted within the plug-in through hole.

[0008] An anchoring core post, which has multiple parts, each anchoring core post is connected to the plug-in end post and bends outward towards the plug-in end post, and can adjust the deflection angle together with the plug-in end post;

[0009] An anchoring end cap, which has multiple parts, each of which is a frustum-shaped structure. Its small diameter end is screwed to the end of the anchoring core column through a threaded structure. The deflection angle can be adjusted together with the anchoring core column, and the installation position can be adjusted along the axial direction of the anchoring core column. The large diameter end of the anchoring end cap has a fitting notch. The fitting notch is frustum-shaped, and its axis coincides with the axis of the anchoring end cap. The end of the anchoring core column extends into the fitting notch. The large diameter end of the anchoring end cap is also provided with a fitting end ring. The fitting end ring extends along the circumference of the anchoring end cap and protrudes radially towards the inside and outside of the anchoring end cap.

[0010] Transition sleeve, which covers the outer wall of the anchor core post, is formed by winding ceramic fibers on the anchor core post;

[0011] The heat-insulating inner liner is attached to the inner wall of the heat-insulating liner and penetrates into the heat-insulating liner. Its outer diameter section covers the outside of the anchor body and the plug-in end post, and its middle part covers the outside of the plug-in core post and penetrates into the interior of the transition sleeve to reduce the phenomenon of thermal stress concentration. Its inner diameter section covers the outside of the anchor end cap and fills the fitting recess, abutting against the fitting end ring.

[0012] In one embodiment of the present invention, the thermal insulation liner is made of a polymer-bonded thermal insulation fiber blanket, which is bonded to the tank shell by a high-temperature adhesive. The bulk density of this polymer-bonded thermal insulation fiber blanket is 128 kg / m³. 3 Its thermal conductivity is ≤0.018 (W / m·K).

[0013] In one embodiment of the present invention, the heat-insulating inner liner is cast using a low-cement castable with high-alumina material, cordierite and mullite as the base materials, and its thickness is 80mm to 120mm.

[0014] In one embodiment of the present invention, the anchor body is a cylindrical structure, wherein the axis extends along the axial direction of the tank shell, the outer wall of the anchor body is fixed to the inner wall of the tank shell by welding, and the insertion through hole extends through both ends of the anchor body along the axial direction.

[0015] In one embodiment of the present invention, the plug-in end post is adjusted to a predetermined deflection angle and then welded and fixed to the anchoring base body, and the anchoring core post is joined to the top of the plug-in end post.

[0016] In one embodiment of the present invention, the tank shell includes a top feeding section, a middle storage section, a lower discharge section, and a discharge gate. The top feeding section, the middle storage section, and the lower discharge section are formed by rolling heat-resistant steel plates and welding them end to end. The resulting internal welds extend along the axial direction of the tank shell and are arranged sequentially along the circumference of the tank shell. The top feeding section, the middle storage section, and the lower discharge section are sequentially welded together, and the resulting external welds extend along the circumference of the tank shell and are arranged sequentially along the axial direction of the tank shell. There is a pair of discharge gates, each of which is hinged to the edge of the lower discharge section, allowing the opening or closing state of the lower discharge section to be switched.

[0017] In one embodiment of the present invention, the top feeding section is an inverted frustum shape, and its outer wall is provided with a set of top ribs. Each top rib extends along the generatrix direction of the top feeding section and is arranged sequentially along the circumference of the top feeding section. The top ribs strengthen the structure of the top feeding section.

[0018] The central storage section is cylindrical, and its outer wall is provided with a set of annular clamps. Each annular clamp extends along the circumference of the central storage section and is arranged sequentially along the axial direction of the central storage section. The annular clamps strengthen the structure of the central storage section.

[0019] The lower discharge section is an inverted frustum shape, and its outer wall is provided with a set of bottom ribs. Each bottom rib extends along the generatrix of the lower discharge section and is arranged sequentially along the circumference of the lower discharge section. The bottom ribs strengthen the structure of the lower discharge section.

[0020] The anchoring bases are installed on the inner walls of the middle storage section and the lower discharge section, and are evenly distributed along the circumference and axial direction of the middle storage section and the lower discharge section.

[0021] In one embodiment of the present invention, the circumferential spacing of the anchor body is 120 mm, and the axial spacing is 100 mm.

[0022] In one embodiment of the present invention, the opening edge of the top feeding section is rolled inward to form a limiting fold. The limiting fold extends circumferentially along the top feeding section and protrudes radially inward along the top feeding section. A limiting retaining ring is welded to the inner edge of the limiting fold. The limiting retaining ring extends circumferentially along the limiting fold and protrudes radially inward along the limiting fold. The top of the heat-insulating inner liner abuts against the limiting fold and the limiting retaining ring. A set of mating recesses are provided at the bottom of the limiting retaining ring. Each mating recess extends circumferentially along the limiting retaining ring and is arranged sequentially radially along the limiting retaining ring. The top of the heat-insulating inner liner is embedded in the mating recess. The mating recesses provide auxiliary positioning for the top of the heat-insulating inner liner, and the limiting fold and the limiting retaining ring protect the top of the heat-insulating inner liner.

[0023] A method for measuring the performance of a composite-lined rotary coke tank, comprising measuring the aforementioned coke tank, including:

[0024] Temperature measuring points are arranged in four groups within the tank shell. Each group is evenly distributed along the circumference of the tank shell, and each group contains four temperature measuring points arranged sequentially along the generatrix of the tank shell. Three temperature measuring points are set in the middle storage section, and one temperature measuring point is set in the lower discharge section. The interval between the temperature measuring points in the middle storage section is 740 mm. The uppermost temperature measuring point is 1200 mm from the opening of the top feeding section, and the temperature measuring point in the lower discharge section is 840 mm from the intersection of the middle storage section and the lower discharge section.

[0025] The temperature measuring points inside the tank shell were sequentially polished using an angle grinder, file, and sandpaper. Then, the measuring points were wiped clean with alcohol-soaked cotton wool. After meeting the requirements, thermocouples were attached to the temperature measuring points using high-temperature strain gauge adhesive. The coke tank was then put into operation, and the thermocouples measured the temperature at each measuring point inside the tank shell. During the measurement process, the tank shell rotated. Temperature data was acquired using a mobile dynamic signal device compatible with the thermocouples and a computer. An industrial temperature gun was used to measure the temperature at each measuring point. The measurement data from the industrial temperature gun and the thermocouples were combined to conduct a comprehensive analysis of the temperature field inside the tank shell.

[0026] The above methods also include:

[0027] Four sets of stress measuring points are set up in the tank shell. Each set of stress measuring points is evenly distributed along the circumference of the tank shell. Each set of stress measuring points includes four stress measuring points, which are arranged sequentially along the generatrix of the tank shell. Three stress measuring points are set in the middle storage section and one stress measuring point is set in the lower discharge section. The interval between the stress measuring points in the middle storage section is 740 mm. The uppermost stress measuring point is 1200 mm away from the opening of the top feeding section. The stress measuring point in the lower discharge section is 840 mm away from the intersection of the middle storage section and the lower discharge section.

[0028] The stress measuring points in the tank shell were polished sequentially using an angle grinder, file, and sandpaper. Then, the stress measuring points were wiped clean with degreased cotton soaked in alcohol. After meeting the requirements, high-temperature resistant strain gauge adhesive was used to attach the strain gauges to the stress measuring points. After attachment, the tank was sealed and allowed to cure for 24 hours. Then, the coke tank was put into operation, and the output signals of the strain gauges were collected to obtain the real-time dynamic stress values ​​at the stress measuring points.

[0029] The advantages of this invention are:

[0030] This coke can employs a multi-stage anchoring structure consisting of an anchoring base, plug-in end posts, anchoring core posts, and anchoring end caps. Through threaded connections, welding fixation, and an adjustable deflection angle design, a robust support system is formed, ensuring a tight bond between the insulated inner liner and the can shell, thus enhancing overall structural stability. The insulation liner uses a high-polymer bonded thermal insulation fiber blanket, while the insulated inner liner uses low-cement castable. The two work synergistically to effectively reduce heat transfer, minimize thermal stress concentration, and improve the coke can's temperature resistance. The insulated inner liner provides all-around protection through the infiltration of the insulation liner, the covering of the anchoring components, and the filling of interlocking recesses, significantly improving wear resistance and extending service life.

[0031] This measurement method arranges temperature and stress measurement points evenly along the circumferential and generatrix directions, covering key areas to ensure comprehensive and accurate test results. It uses thermocouples and industrial temperature guns to measure temperature, dynamic signal equipment and computers to collect data, and strain gauges to measure stress, providing real-time dynamic data and a reliable basis for safe operation. Attached Figure Description

[0032] Figure 1 This is a schematic cross-sectional view of the composite-lined rotary coke tank proposed in this invention.

[0033] Figure 2 It is a schematic diagram of the assembly state of the anchor body, the plug-in end post, the anchor core post and the anchor end cap;

[0034] Figure 3 This is a schematic diagram of the assembly state of the limit retaining ring on the limit folded edge. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] like Figures 1-3As shown, the composite-lined rotary coke tank proposed in this invention includes a tank shell 100, anchoring bases 200, insert end posts 300, anchoring core posts 400, anchoring end caps 500, transition sleeves 600, and an insulated inner liner 700. The tank shell is formed by assembling plates, and its inner wall is covered with an insulated gasket. The anchoring bases are provided with multiple parts, each anchoring base being installed on the inner wall of the tank shell and protruding from the insulated gasket. Insertion points are provided inside the anchoring bases. The system includes a through-hole and multiple insertion end posts, each longer than the anchor body. Each insertion end post is inserted into the through-hole, allowing adjustment of the deflection angle. Multiple anchor core posts are also included, each engaging with a insertion end post and bending outwards. Their deflection angle can be adjusted along with the insertion end post. Multiple anchor end caps are provided, each frustum-shaped, with its small-diameter end screwed onto the anchor body via a threaded connection. The end of the anchor core can be adjusted in deflection angle along with the anchor core, and its installation position can be adjusted along its axial direction on the anchor core. The large-diameter end of the anchor end cap has a fitting recess 510, which is frustoconical in shape, with its axis coinciding with the axis of the anchor end cap. The end of the anchor core extends into the fitting recess. The large-diameter end of the anchor end cap is also provided with a fitting end ring 520, which extends circumferentially along the anchor end cap and radially into the anchor end cap. The outer side protrudes, and the transition sleeve covers the outer wall of the anchor core column. It is formed by winding ceramic fiber on the anchor core column. The heat insulation liner is attached to the inner wall of the heat insulation liner and penetrates into the heat insulation liner. Its outer diameter section covers the outside of the anchor body and the plug-in end column, and its middle part covers the outside of the plug-in core column and penetrates into the interior of the transition sleeve to reduce the phenomenon of thermal stress concentration. Its inner diameter section covers the outside of the anchor end cap and fills the fitting notch, abutting against the fitting end ring.

[0037] In this embodiment, the thermal insulation liner is made of polymer-bonded insulating fiber blanket, which is bonded to the tank shell by a high-temperature adhesive. The bulk density of this polymer-bonded insulating fiber blanket is 128 kg / m³. 3 Its thermal conductivity is ≤0.018 (W / m·K).

[0038] In this embodiment, the heat-insulating inner liner is cast using a low-cement castable with high-alumina material, cordierite and mullite as the base materials, and its thickness is 80mm to 120mm.

[0039] In this embodiment, the anchor body is a cylindrical structure, with its axis extending axially along the tank shell. Its outer wall is fixed to the inner wall of the tank shell by welding, and the insertion through hole extends axially through both ends of the anchor body.

[0040] In this embodiment, the plug-in end post is adjusted to a predetermined deflection angle and then welded and fixed to the anchoring base body, and the anchoring core post is joined to the top of the plug-in end post.

[0041] In this embodiment, the tank shell includes a top feeding section 110, a middle storage section 120, a lower discharge section 130, and a discharge gate 140. The top feeding section, the middle storage section, and the lower discharge section are formed by rolling heat-resistant steel plates and welding them end to end. The resulting internal welds extend along the axial direction of the tank shell and are arranged sequentially along the circumference of the tank shell. The top feeding section, the middle storage section, and the lower discharge section are sequentially welded together, and the resulting external welds extend along the circumference of the tank shell and are arranged sequentially along the axial direction of the tank shell. There is a pair of discharge gates, each of which is hinged to the edge of the lower discharge section, allowing the opening or closing state of the lower discharge section to be switched.

[0042] In this embodiment, the top feeding section is an inverted frustum shape, and its outer wall is provided with a set of top ribs 111. Each top rib extends along the generatrix of the top feeding section and is arranged sequentially along the circumference of the top feeding section. The top ribs strengthen the structure of the top feeding section.

[0043] The central storage section is cylindrical, and its outer wall is provided with a set of annular clamps 121. Each annular clamp extends along the circumference of the central storage section and is arranged sequentially along the axial direction of the central storage section. The annular clamps reinforce the structure of the central storage section.

[0044] The lower discharge section is an inverted frustum shape, and its outer wall is provided with a set of bottom wing ribs 131. Each bottom wing rib extends along the generatrix of the lower discharge section and is arranged sequentially along the circumference of the lower discharge section. The bottom wing ribs strengthen the structure of the lower discharge section.

[0045] The anchoring bases are installed on the inner walls of the middle storage section and the lower discharge section, and are evenly distributed along the circumference and axial direction of the middle storage section and the lower discharge section.

[0046] In this embodiment, the circumferential spacing of the anchorage body is 120mm, and its axial spacing is 100mm.

[0047] In this embodiment, the opening edge of the top feeding section is rolled inward to form a limiting fold 112. The limiting fold extends circumferentially along the top feeding section and protrudes radially inward along the top feeding section. A limiting retaining ring 113 is welded to the inner edge of the limiting fold. The limiting retaining ring extends circumferentially along the limiting fold and protrudes radially inward along the limiting fold. The top of the heat-insulating inner liner abuts against the limiting fold and the limiting retaining ring. A set of mating recesses 114 are provided at the bottom of the limiting retaining ring. Each mating recess extends circumferentially along the limiting retaining ring and is arranged sequentially radially along the limiting retaining ring. The top of the heat-insulating inner liner is embedded in the mating recess. The mating recess provides auxiliary positioning for the top of the heat-insulating inner liner, and the limiting fold and the limiting retaining ring protect the top of the heat-insulating inner liner.

[0048] The temperature field measurement methods for the above-mentioned composite-lined rotary coke tanks include:

[0049] Temperature measuring points are arranged in four groups within the tank shell. Each group is evenly distributed along the circumference of the tank shell, and each group contains four temperature measuring points arranged sequentially along the generatrix of the tank shell. Three temperature measuring points are set in the middle storage section, and one temperature measuring point is set in the lower discharge section. The interval between the temperature measuring points in the middle storage section is 740 mm. The uppermost temperature measuring point is 1200 mm from the opening of the top feeding section, and the temperature measuring point in the lower discharge section is 840 mm from the intersection of the middle storage section and the lower discharge section.

[0050] The temperature measuring points inside the tank shell were sequentially polished using an angle grinder, file, and sandpaper. Then, the measuring points were wiped clean with alcohol-soaked cotton wool. After meeting the requirements, thermocouples were attached to the temperature measuring points using high-temperature strain gauge adhesive. The coke tank was then put into operation, and the thermocouples measured the temperature at each measuring point inside the tank shell. During the measurement process, the tank shell rotated. Temperature data was acquired using a mobile dynamic signal device compatible with the thermocouples and a computer. An industrial temperature gun was used to measure the temperature at each measuring point. The measurement data from the industrial temperature gun and the thermocouples were combined to conduct a comprehensive analysis of the temperature field inside the tank shell.

[0051] After 300 minutes of coking, the test results of the thermocouple and temperature gun are as follows:

[0052]

[0053] The stress field measurement method for the aforementioned composite-lined rotary coke tank also includes:

[0054] Four sets of stress measuring points are set up in the tank shell. Each set of stress measuring points is evenly distributed along the circumference of the tank shell. Each set of stress measuring points includes four stress measuring points, which are arranged sequentially along the generatrix of the tank shell. Three stress measuring points are set in the middle storage section and one stress measuring point is set in the lower discharge section. The interval between the stress measuring points in the middle storage section is 740 mm. The uppermost stress measuring point is 1200 mm away from the opening of the top feeding section. The stress measuring point in the lower discharge section is 840 mm away from the intersection of the middle storage section and the lower discharge section.

[0055] The stress measuring points in the tank shell were polished sequentially using an angle grinder, file, and sandpaper. Then, the stress measuring points were wiped clean with degreased cotton soaked in alcohol. After meeting the requirements, high-temperature resistant strain gauge adhesive was used to attach the strain gauges to the stress measuring points. After attachment, the tank was sealed and allowed to cure for 24 hours. Then, the coke tank was put into operation, and the output signals of the strain gauges were collected to obtain the real-time dynamic stress values ​​at the stress measuring points.

[0056] During stress signal acquisition, the acquisition frequency was 500Hz, the bridge voltage was 2V, the resistance of the strain gauge was 120Ω, the sensitivity coefficient was 2.08, the elastic modulus was 206Gpa, and the Poisson's ratio was 0.28.

[0057] In this embodiment, the stress test results after 300 minutes of coking are as follows:

[0058]

[0059]

[0060] In summary, under steady-state equilibrium, the highest temperature of the outer layer of the coke can during service is about 170℃, and the maximum stress is less than 9MPa, which is far below the yield limit of the material. Therefore, the safety factor of the coke can during service is relatively high.

[0061] In the description of this invention, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this invention is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

Claims

1. A composite-lined rotary coke tank, comprising a tank shell formed by assembling plates, the inner wall of which is covered with a heat-insulating gasket, characterized in that, Also includes: An anchor body, which has multiple parts, each anchor body is installed on the inner wall of the tank shell and protrudes from the heat insulation gasket, and has a plug-in through hole inside. The plug-in end post has multiple parts, the length of which is greater than the length of the anchor body. Each plug-in end post is inserted into the plug-in through hole, and the deflection angle can be adjusted within the plug-in through hole. An anchoring core post, which has multiple parts, each anchoring core post is connected to the plug-in end post and bends outward towards the plug-in end post, and can adjust the deflection angle together with the plug-in end post; An anchoring end cap, which has multiple parts, each of which is a frustum-shaped structure. Its small diameter end is screwed to the end of the anchoring core column through a threaded structure. The deflection angle can be adjusted together with the anchoring core column, and the installation position can be adjusted along the axial direction of the anchoring core column. The large diameter end of the anchoring end cap has a fitting notch. The fitting notch is frustum-shaped, and its axis coincides with the axis of the anchoring end cap. The end of the anchoring core column extends into the fitting notch. The large diameter end of the anchoring end cap is also provided with a fitting end ring. The fitting end ring extends along the circumference of the anchoring end cap and protrudes radially towards the inside and outside of the anchoring end cap. Transition sleeve, which covers the outer wall of the anchor core post, is formed by winding ceramic fibers on the anchor core post; The heat-insulating inner liner is attached to the inner wall of the heat-insulating liner and penetrates into the heat-insulating liner. Its outer diameter section covers the outside of the anchor body and the plug-in end post, and its middle part covers the outside of the plug-in core post and penetrates into the interior of the transition sleeve to reduce the phenomenon of thermal stress concentration. Its inner diameter section covers the outside of the anchor end cap and fills the fitting recess, abutting against the fitting end ring.

2. The composite-lined rotary coke tank according to claim 1, characterized in that: The anchoring base is a cylindrical structure with its axis extending axially along the tank shell. Its outer wall is fixed to the inner wall of the tank shell by welding, and the insertion through hole extends axially through both ends of the anchoring base.

3. A composite-lined rotary coke tank according to claim 2, characterized in that: After the plug-in end post is adjusted to the predetermined deflection angle, it is welded and fixed to the anchoring base. The anchoring core post is joined to the top of the plug-in end post.

4. The composite-lined rotary coke tank according to claim 1, characterized in that: The tank shell includes a top feeding section, a middle storage section, a lower discharge section, and a discharge gate. The top feeding section, the middle storage section, and the lower discharge section are formed by rolling heat-resistant steel plates and welding them end to end. The resulting internal welds extend along the axial direction of the tank shell and are arranged sequentially along the circumference of the tank shell. The top feeding section, the middle storage section, and the lower discharge section are sequentially welded together, and the resulting external welds extend along the circumference of the tank shell and are arranged sequentially along the axial direction of the tank shell. There is a pair of discharge gates, each of which is hinged to the edge of the lower discharge section, allowing the opening or closing state of the lower discharge section to be switched.

5. A composite-lined rotary coke tank according to claim 4, characterized in that: The top feeding section is an inverted frustum shape, and its outer wall is provided with a set of top ribs. Each top rib extends along the generatrix of the top feeding section and is arranged sequentially along the circumference of the top feeding section. The top ribs strengthen the structure of the top feeding section. The central storage section is cylindrical, and its outer wall is provided with a set of annular clamps. Each annular clamp extends along the circumference of the central storage section and is arranged sequentially along the axial direction of the central storage section. The annular clamps strengthen the structure of the central storage section. The lower discharge section is an inverted frustum shape, and its outer wall is provided with a set of bottom ribs. Each bottom rib extends along the generatrix of the lower discharge section and is arranged sequentially along the circumference of the lower discharge section. The bottom ribs strengthen the structure of the lower discharge section. The anchoring bases are installed on the inner walls of the middle storage section and the lower discharge section, and are evenly distributed along the circumference and axial direction of the middle storage section and the lower discharge section.

6. A composite-lined rotary coke tank according to claim 4, characterized in that: The opening edge of the top feeding section is rolled inward to form a limiting fold. This limiting fold extends circumferentially along the top feeding section and protrudes radially inward along the top feeding section. A limiting retaining ring is welded to the inner edge of the limiting fold. This limiting retaining ring extends circumferentially along the limiting fold and protrudes radially inward along the limiting fold. The top of the heat-insulating inner liner abuts against the limiting fold and the limiting retaining ring. A set of mating notches is provided at the bottom of the limiting retaining ring. Each mating notch extends circumferentially along the limiting retaining ring and is arranged sequentially radially along the limiting retaining ring. The top of the heat-insulating inner liner is embedded in the mating notch. The mating notch provides auxiliary positioning for the top of the heat-insulating inner liner, and the limiting fold and the limiting retaining ring protect the top of the heat-insulating inner liner.

7. A method for measuring the performance of a composite-lined rotary coke tank, comprising measuring the coke tank according to any one of claims 1 to 6, characterized in that, include: Temperature measuring points are arranged in four groups within the tank shell. Each group is evenly distributed along the circumference of the tank shell, and each group contains four temperature measuring points arranged sequentially along the generatrix of the tank shell. Three temperature measuring points are set in the middle storage section, and one temperature measuring point is set in the lower discharge section. The interval between the temperature measuring points in the middle storage section is 740 mm. The uppermost temperature measuring point is 1200 mm from the opening of the top feeding section, and the temperature measuring point in the lower discharge section is 840 mm from the intersection of the middle storage section and the lower discharge section. The temperature measuring points inside the tank shell were sequentially polished using an angle grinder, file, and sandpaper. Then, the measuring points were wiped clean with alcohol-soaked cotton wool. After meeting the requirements, thermocouples were attached to the temperature measuring points using high-temperature strain gauge adhesive. The coke tank was then put into operation, and the thermocouples measured the temperature at each measuring point inside the tank shell. During the measurement process, the tank shell rotated. Temperature data was acquired using a mobile dynamic signal device compatible with the thermocouples and a computer. An industrial temperature gun was used to measure the temperature at each measuring point. The measurement data from the industrial temperature gun and the thermocouples were combined to conduct a comprehensive analysis of the temperature field inside the tank shell.

8. The performance measurement method for a composite-lined rotary coke tank according to claim 7, characterized in that, Also includes: Four sets of stress measuring points are set up in the tank shell. Each set of stress measuring points is evenly distributed along the circumference of the tank shell. Each set of stress measuring points includes four stress measuring points, which are arranged sequentially along the generatrix of the tank shell. Three stress measuring points are set in the middle storage section and one stress measuring point is set in the lower discharge section. The interval between the stress measuring points in the middle storage section is 740 mm. The uppermost stress measuring point is 1200 mm away from the opening of the top feeding section. The stress measuring point in the lower discharge section is 840 mm away from the intersection of the middle storage section and the lower discharge section. The stress measuring points in the tank shell were polished sequentially using an angle grinder, file, and sandpaper. Then, the stress measuring points were wiped clean with degreased cotton soaked in alcohol. After meeting the requirements, high-temperature resistant strain gauge adhesive was used to attach the strain gauges to the stress measuring points. After attachment, the tank was sealed and allowed to cure for 24 hours. Then, the coke tank was put into operation, and the output signals of the strain gauges were collected to obtain the real-time dynamic stress values ​​at the stress measuring points.

Images