Coke thermal property detection reactor and detection system

Abstract

The utility model provides a kind of coke thermal performance detection reactor and detection system, comprising: reactor main body, porosity support piece and detection piece.Reactor main body has outer shell and temperature-resistant bushing, the temperature-resistant bushing is nested in the gas outlet end of the outer shell, the temperature-resistant bushing is enclosed and carries out the reaction chamber of coke heat reaction;Porosity support piece blocks the opening of the reaction chamber away from the gas outlet end, for supporting the coke to be detected and allowing gas to pass through;Detection piece is penetrated in the porosity support piece, from the outer shell outside into the reaction chamber, for monitoring relevant parameter in coke thermal reaction process.The utility model's structure design is simple, convenient to operate, low in cost, significantly improve the heat insulation performance, service life and detection precision of coke thermal performance detection reactor.

Description

Technical Field

[0001] This utility model relates to the field of coal analysis and testing technology, and in particular to a coke thermal performance testing reactor and testing system. Background Technology

[0002] Coke is one of the essential raw materials for blast furnace ironmaking, serving as fuel, structural support, and reducing agent within the blast furnace. Its thermal properties (such as reactivity and post-reaction strength) are crucial to blast furnace operation. As coke's role as the structural support in the blast furnace burden is further strengthened, its hot-state properties are receiving increasing attention. Coke reactivity and post-reaction strength are important indicators characterizing its hot-state properties, reflecting its ability to resist breakage and abrasion under thermal stress and mechanical forces within the blast furnace under the given temperature and atmosphere. A coke thermal performance testing reactor is a device used to test the reactivity and post-reaction strength of coke. During coke thermal performance testing, the acquisition of real-time temperature directly affects the accuracy of the test results. However, in actual tests, the reactor walls filled with coke may bulge and crack during heating, affecting the accuracy of the experimental results, reducing the reactor's lifespan, and increasing testing costs and equipment maintenance frequency. Utility Model Content

[0003] The main purpose of this invention is to provide a reactor and testing system for testing the thermal properties of coke, which solves the technical problems of sidewall bulging, cracking, and increased testing costs during the heating process of the reactor.

[0004] To achieve the above objectives, this utility model provides a coke thermal performance testing reactor, comprising: a reactor body, a pore support, and a testing component.

[0005] The reactor body has an outer shell and a heat-resistant liner. The heat-resistant liner is nested in the gas outlet of the outer shell and forms a reaction chamber for the coke to undergo thermal reaction.

[0006] A pore support seals the opening of the reaction chamber away from the gas outlet, supporting the coke to be tested while allowing gas to pass through.

[0007] The detection element penetrates the porous support and extends from outside the outer shell into the reaction chamber to monitor relevant parameters during the coke thermal reaction process.

[0008] In some embodiments, the outer shell is made of metal, and the heat-resistant bushing is made of corundum.

[0009] In some embodiments, the outer casing and the heat-resistant bushing are coaxially arranged and clearance-fitted.

[0010] In some embodiments, the outlet end of the outer casing is further provided with a removable reactor cover to provide an installation channel for the heat-resistant bushing, and the reactor cover is provided with an outlet pipe.

[0011] In some embodiments, a limiting baffle is provided between the outer shell and the heat-resistant bushing. The limiting baffle is located at the end where the pore support is located and is used to limit the heat-resistant bushing.

[0012] In some embodiments, the thickness of the outer casing is 1.0 to 2.0 mm, and the thickness of the heat-resistant bushing is 4 to 6 mm.

[0013] The outer shell has a length of 50-60cm, and the heat-resistant bushing has a length of 20-30cm.

[0014] In some embodiments, the working surface of the pore support is provided with a plurality of through holes with the same spacing.

[0015] The interval between two adjacent through holes is 4 to 6 mm.

[0016] In some embodiments, the end of the outer casing opposite to the air outlet is the air inlet, and the air inlet has an air inlet.

[0017] The outlet end is provided with the outlet pipe.

[0018] In some embodiments, the detection element includes a thermocouple sheath and a thermocouple.

[0019] The thermocouple sheath extends axially from the outer shell along the reaction chamber, with its end located at the center of the coke inside the reaction chamber.

[0020] The thermocouple is installed inside the thermocouple sheath.

[0021] This utility model also provides a coke thermal performance testing system, including a heating mechanism, a gas supply mechanism, a data acquisition mechanism, and the aforementioned coke thermal performance testing reactor.

[0022] The data acquisition mechanism is electrically connected to the detection element of the reactor and is used to record reaction parameters in real time.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] The aforementioned utility model provides a reactor and system for testing the thermal properties of coke, comprising: a reactor body, a pore support, and a testing element. The reactor body adopts a dual structure of an outer shell and a heat-resistant bushing. The heat-resistant bushing is nested within the gas outlet of the outer shell, effectively withstanding high-temperature environments and ensuring the stability and safety of the reactor under high-temperature conditions. The reaction chamber enclosed by the heat-resistant bushing effectively insulates against heat, reducing heat loss and improving the reactor's energy efficiency. Simultaneously, it reduces the thermal stress on the reactor shell caused by high temperatures, extending the reactor's service life. This dual-structure design effectively prevents high-temperature carburization, oxidation, and sulfidation corrosion caused by direct contact between the outer shell and the coke, further improving the reactor's durability. The pore support seals the opening of the reaction chamber away from the gas outlet, supporting the coke to be tested while allowing gas passage. The testing element penetrates the pore support, extending from outside the outer shell into the reaction chamber, and is used to monitor relevant parameters during the coke's thermal reaction process. Direct contact with the coke by the testing element provides accurate real-time data, improving testing precision.

[0025] This invention features a simple structural design, convenient operation, and low cost, significantly improving the insulation performance, service life, and testing accuracy of the coke thermal performance testing reactor. It solves the technical problems of sidewall bulging and cracking during reactor heating, which increases testing costs. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the coke thermal performance testing reactor of this utility model.

[0028] The attached figures are labeled as follows: 1. Outlet end of the outer shell; 2. Heat-resistant bushing; 3. Outer shell; 4. Detector; 5. Pore support; 6. Inlet end; 7. Inlet port; 8. Limiting baffle; 10. Reactor body; 11. Reaction chamber; 12. Reactor cover; 13. Outlet pipe; 14. Thermocouple sheath.

[0029] The implementation, functional features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0032] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] The present invention provides a reactor and testing system for testing the thermal properties of coke, which solves the technical problems of sidewall bulging, cracking, and increased testing costs during the heating process of the reactor.

[0034] See Figure 1 , Figure 1 This is a schematic diagram of the coke thermal performance testing reactor of this utility model. This utility model provides a coke thermal performance testing reactor, comprising: a reactor body 10, a pore support 5, and a testing element 4.

[0035] To ensure the stability and safety of the reactor under high-temperature conditions, see [reference needed]. Figure 1 The reactor body 10 has an outer shell 3 and a heat-resistant bushing 2. The heat-resistant bushing 2 is nested in the gas outlet 1 of the outer shell 3, and the heat-resistant bushing 2 forms a reaction chamber 11 for the thermal reaction of coke. The reaction chamber formed by the heat-resistant bushing can effectively insulate against heat, reduce heat loss, improve the energy efficiency of the reactor, and at the same time reduce the thermal stress on the reactor shell caused by high temperature, thus extending the service life of the reactor.

[0036] To mitigate the effects of thermal expansion and contraction and facilitate disassembly, in some embodiments, a heat-resistant bushing is nested within the outlet end of the outer shell, allowing for easy individual removal of the heat-resistant bushing and reducing the cost of replacing the reactor. Simultaneously, a gap is left between the heat-resistant bushing and the outer shell to accommodate the effects of thermal expansion and contraction.

[0037] To ensure proper reaction of the coke in the reactor, in some embodiments, a porous support 5 seals the opening of the reaction chamber 11 away from the gas outlet 1, supporting the coke to be tested while allowing gas to pass through. This design ensures good permeability of the coke during the reaction, preventing gas flow obstruction due to coke accumulation, thereby improving reaction efficiency and accuracy. Furthermore, it prevents coke particles from clogging the gas outlet during the reaction, ensuring smooth airflow inside the reactor and further optimizing the reaction process.

[0038] In some implementations, the combination of heat-resistant bushings and porous supports can reduce the compression deformation of the reactor sidewalls caused by the thermal expansion of coke, further improving the stability and repeatability of the test and reducing test failures due to improper operation.

[0039] To obtain more accurate real-time data, in some embodiments, the detection element 4 penetrates through the pore support 5, extending from outside the outer shell 3 into the reaction chamber 11, for monitoring relevant parameters during the coke thermal reaction process. This design ensures that the detection element is in direct contact with the coke, improving detection accuracy, and also avoids damage caused by hard contact between the thermocouple and coke particles, thereby improving the reliability and stability of the detection system.

[0040] The aforementioned coke thermal performance testing reactor includes: a reactor body, a pore support, and a testing element. The reactor body employs a dual structure of an outer shell and a heat-resistant bushing. The heat-resistant bushing is nested within the gas outlet of the outer shell, effectively withstanding high-temperature environments and ensuring the reactor's stability and safety under high-temperature conditions. The reaction chamber enclosed by the heat-resistant bushing effectively insulates against heat, reducing heat loss and improving reactor energy efficiency. Simultaneously, it reduces thermal stress on the reactor shell due to high temperatures, extending the reactor's service life. This dual-structure design effectively prevents high-temperature carburization, oxidation, and sulfidation corrosion caused by direct contact between the outer shell and coke, further enhancing the reactor's durability. The pore support seals the opening of the reaction chamber away from the gas outlet, supporting the coke to be tested while allowing gas passage. The testing element penetrates the pore support, extending from outside the outer shell into the reaction chamber, and is used to monitor relevant parameters during the coke thermal reaction process. Direct contact with the coke by the testing element provides accurate real-time data, improving testing precision.

[0041] This invention features a simple structural design, convenient operation, and low cost, significantly improving the insulation performance, service life, and testing accuracy of the coke thermal performance testing reactor. It solves the technical problems of sidewall bulging and cracking during reactor heating, which increases testing costs.

[0042] To improve testing efficiency and reduce costs, in some embodiments, the outer shell 3 is made of metal, and the heat-resistant bushing 2 is made of corundum. By placing coke into the reaction chamber enclosed by the heat-resistant bushing, which does not directly contact the outer shell, the effects of high-temperature carburizing and sulfidation corrosion on the outer shell are reduced, thus extending the reactor's service life. If the heat-resistant bushing is damaged during the test, the metal outer shell isolates it from the air, ensuring the test results are unaffected and improving the success rate. Furthermore, the corundum heat-resistant bushing can be replaced separately, reducing the reactor's cost.

[0043] To ensure the structural symmetry of the reactor body and reduce thermal stress concentration, in some embodiments, the outer shell 3 and the heat-resistant bushing 2 are coaxially arranged with a clearance fit. This ensures uniform heating of the reactor under high-temperature conditions, avoids localized overheating or undercooling, and improves the reactor's thermal stability. The coaxial arrangement reduces thermal stress concentration caused by asymmetrical heating, extending the reactor's service life. The clearance fit provides space for the thermal expansion of the outer shell and the heat-resistant bushing, reducing heat transfer from the reaction chamber to the outside, improving the reactor's insulation performance, preventing structural deformation or damage due to thermal expansion, and enhancing the reactor's reliability. Furthermore, the clearance fit makes the heat-resistant bushing easier to install and replace, facilitating maintenance and repair, and reducing downtime.

[0044] To facilitate the installation of the heat-resistant bushing, in some embodiments, the outlet end 1 of the outer shell 3 is also provided with a removable reactor cover 12 to provide an installation channel for the heat-resistant bushing 2. The reactor cover 12 is provided with an outlet pipe 13. When it is necessary to replace or maintain the heat-resistant bushing, only the reactor cover needs to be removed for operation, allowing the heat-resistant bushing to be easily installed and fixed inside the reactor body, greatly improving maintenance convenience and reducing downtime. Furthermore, the size of the removable reactor cover is adjusted according to the size of the reactor body to ensure the airtightness of the reactor during operation, preventing gas leakage and ensuring the accuracy and safety of the experiment. The outlet pipe on the reactor cover can effectively discharge the gas generated during the reaction, ensuring smooth airflow inside the reactor and avoiding excessive pressure due to gas accumulation.

[0045] The stability of the heat-resistant bushing ensures the stable operation of the reactor. (See [link]) Figure 1In some embodiments, a limiting baffle 8 is provided between the outer shell 3 and the heat-resistant bushing 2. The limiting baffle 8 is located at the end where the pore support 5 is located, and is used to limit the heat-resistant bushing 2. The limiting baffle can effectively prevent the heat-resistant bushing from shifting or deforming under high temperature and thermal expansion, ensuring that the heat-resistant bushing is fixed in position within the reactor, enabling it to better withstand high temperature and thermal stress, and improving the overall structural stability of the reactor. Moreover, the limiting baffle can ensure that the gap between the heat-resistant bushing and the outer shell is uniform, thereby ensuring that the reactor is heated uniformly under high temperature conditions and avoiding local overheating or undercooling. It can also reduce thermal stress concentration caused by thermal expansion, extend the service life of the heat-resistant bushing and the outer shell, and improve the safety of the reactor.

[0046] A suitable length and thickness of the reactor body can ensure normal reaction and reduce production costs. In some embodiments, the thickness of the outer shell 3 is 1.0–2.0 mm, and the thickness of the heat-resistant bushing 2 is 4–6 mm.

[0047] The outer shell 3 has a length of 50-60cm, and the heat-resistant bushing 2 has a length of 20-30cm.

[0048] By rationally designing the thickness of the outer shell and the heat-resistant bushing, the reactor body can withstand high-temperature environments, ensuring the reactor's stability and safety under high-temperature conditions. A thicker heat-resistant bushing reduces thermal erosion and mechanical wear, extending its service life. It also effectively insulates against heat, reducing heat transfer from the reaction chamber to the outside and improving the reactor's energy efficiency.

[0049] In some implementations, the length and thickness of the outer shell and heat-resistant bushing are designed appropriately according to the needs of the experiment to ensure the versatility of the reactor.

[0050] To allow gas to flow, in some embodiments, the working surface of the pore support 5 is provided with a plurality of through holes with the same spacing.

[0051] The interval between two adjacent through holes is 4 to 6 mm.

[0052] In some implementations, uniformly distributed through holes can prevent local gas accumulation or uneven distribution, which helps to improve the efficiency of coke thermal reaction and ensures sufficient contact between gas and coke during the reaction process.

[0053] The uniform distribution of through holes ensures even distribution of coke on the pore support, reducing stress concentration caused by coke weight and preventing coke accumulation or deformation due to insufficient local support, thus extending the service life of the pore support. The evenly spaced through holes ensure gas flow while preventing coke particles from clogging the pores, ensuring good air permeability of the pore support, reducing gas flow obstruction caused by blockage, and avoiding localized overheating due to gas accumulation, thereby extending the reactor's service life. Furthermore, the design of this pore support facilitates cleaning and maintenance.

[0054] To ensure the smooth entry of reactant gases into the reactor body and provide the necessary gaseous environment for the coke reaction, see [reference needed]. Figure 1 In some embodiments, the end of the outer shell 3 opposite to the air outlet 1 is the air inlet 6, and the air inlet 6 has an air inlet 7.

[0055] The air outlet 1 is provided with the air outlet pipe 13.

[0056] In some implementations, the inlet at the inlet end ensures that the reactant gases smoothly enter the reactor, providing the necessary gaseous environment for the coke thermal reaction. The outlet at the outlet end effectively guides the gases generated during the reaction out of the reactor, ensuring smooth airflow inside the reactor and preventing excessive pressure due to gas accumulation. The design of the inlet and outlet provides a gas flow path, ensuring airtightness during the experiment and reducing resistance to gas flow in and out of the reactor, ensuring smooth gas flow and further improving reaction efficiency. The outlet effectively releases the pressure generated during the reaction, preventing reactor rupture or explosion due to excessive pressure and improving experimental safety.

[0057] To accurately measure temperature changes during the coke reaction process, in some embodiments, the detection element 4 includes a thermocouple sheath 14 and a thermocouple.

[0058] The thermocouple sheath 14 extends axially from the outer shell 3 along the reaction chamber 11, with its end located at the center of the coke inside the reaction chamber 11.

[0059] The thermocouple is inserted inside the thermocouple sheath 14.

[0060] By positioning the end of the thermocouple sheath at the center of the coke within the reaction chamber, the thermocouple can directly measure the temperature at the coke center, reducing measurement errors caused by positional deviations, ensuring the accuracy and reliability of test data, and preventing damage to the thermocouple during installation and use due to mechanical impacts or coke particle impacts. Inserting the thermocouple into the sheath effectively protects it from direct corrosion by high temperatures and corrosive gases, extending its service life.

[0061] This utility model also provides a coke thermal performance testing system, including a heating mechanism, a gas supply mechanism, a data acquisition mechanism, and the aforementioned coke thermal performance testing reactor.

[0062] The data acquisition mechanism is connected to the detection element 4 of the reactor and is used to record reaction parameters in real time.

[0063] In some implementations, the heating mechanism provides the high-temperature environment required for the coke reaction. The gas supply mechanism supplies the gases needed for the reaction. The data acquisition mechanism records parameters during the coke reaction process in real time. By integrating the heating mechanism, gas supply mechanism, data acquisition mechanism, and coke thermal performance testing reactor into a single unit, a complete testing system is formed, improving the efficiency and accuracy of the experiment. The data acquisition mechanism is electrically connected to the reactor's detection components, enabling real-time recording of parameters (such as temperature and pressure) during the reaction process, ensuring the integrity and accuracy of the experimental data. The heating mechanism and gas supply mechanism can precisely control the reaction conditions, ensuring the stability of the experiment.

[0064] To clearly describe the testing method of the coke thermal performance testing reactor, in some embodiments, (200±2)g of dry sample coke, accurate to 0.1g, is weighed and its mass is recorded. The reactor cover is opened, and the sample coke is loaded into the reactor body (i.e., the reaction chamber surrounded by the heat-resistant bushing) and spread evenly. The thermocouple sheath extends axially from the outer shell along the reaction chamber, with its end located inside the reaction chamber and at the center of the coke. The thermocouple is inserted through the thermocouple sheath, ensuring that the measuring end of the thermocouple is located at the center of the coke to accurately measure the temperature change during the reaction process. The reactor inlet is then connected to the output end of the gas supply mechanism, ensuring a secure and sealed connection. The entire gas path is checked to ensure the airtightness of the coke thermal performance testing system. The reactor cover is then closed, and the coke thermal performance testing reactor is fixed to the test equipment for testing. The heating, weighing, and drum test operations are performed sequentially according to the requirements of national standard GB / T 4000-2017. During the experiment, parameters such as temperature and gas flow rate inside the coke thermal performance testing reactor were monitored in real time.

[0065] The aforementioned coke thermal performance testing reactor and system includes: a reactor body, a pore support, and a testing element. The reactor body employs a dual structure of an outer shell and a heat-resistant bushing. The heat-resistant bushing is nested within the gas outlet of the outer shell, effectively withstanding high-temperature environments and ensuring the reactor's stability and safety under high-temperature conditions. The reaction chamber enclosed by the heat-resistant bushing effectively insulates against heat, reducing heat loss and improving reactor efficiency. Simultaneously, it reduces thermal stress on the reactor shell due to high temperatures, extending the reactor's service life. This dual-structure design effectively prevents high-temperature carburization, oxidation, and sulfidation corrosion caused by direct contact between the outer shell and coke, further enhancing the reactor's durability. The pore support seals the opening of the reaction chamber away from the gas outlet, supporting the coke to be tested while allowing gas passage. The testing element penetrates the pore support, extending from outside the outer shell into the reaction chamber, and is used to monitor relevant parameters during the coke thermal reaction process. Direct contact with the coke by the testing element provides accurate real-time data, improving testing precision.

[0066] Moreover, this invention features a simple structural design, convenient operation, and low cost, significantly improving the insulation performance, service life, and testing accuracy of the coke thermal performance testing reactor. It solves the technical problems of sidewall bulging and cracking during reactor heating, which increases testing costs.

[0067] The above technical solutions of this utility model are merely preferred embodiments and do not limit the patent scope of this utility model. All equivalent structural transformations made under the technical concept of this utility model using the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this utility model.

Claims

1. A reactor for testing the thermal properties of coke, characterized in that, include: The reactor body (10) has an outer shell (3) and a heat-resistant bushing (2). The heat-resistant bushing (2) is nested in the gas outlet (1) of the outer shell (3). The heat-resistant bushing (2) forms a reaction chamber (11) for the coke to undergo thermal reaction. A pore support (5) blocks the opening of the reaction chamber (11) away from the gas outlet (1) to support the coke to be tested and allow gas to pass through; The detection element (4) penetrates the pore support (5) and extends from outside the outer shell (3) into the reaction chamber (11) to monitor relevant parameters during the coke thermal reaction process.

2. The coke thermal performance testing reactor according to claim 1, characterized in that, The outer shell (3) is made of metal, and the heat-resistant bushing (2) is made of corundum.

3. The coke thermal performance testing reactor according to claim 1, characterized in that, The outer shell (3) and the heat-resistant bushing (2) are coaxially arranged and fitted with clearance.

4. The coke thermal performance testing reactor according to claim 1, characterized in that, The outer casing (3) is also provided with a removable reactor cover (12) at the outlet end (1) to provide an installation channel for the heat-resistant bushing (2), and the reactor cover (12) is provided with an outlet pipe (13).

5. The coke thermal performance testing reactor according to claim 4, characterized in that, A limiting baffle (8) is provided between the outer shell (3) and the heat-resistant bushing (2). The limiting baffle (8) is located at the end where the pore support (5) is located, and is used to limit the heat-resistant bushing (2).

6. The coke thermal performance testing reactor according to claim 1, characterized in that, The thickness of the outer shell (3) is 1.0~2.0 mm, and the thickness of the heat-resistant bushing (2) is 4~6 mm; The outer shell (3) has a length of 50-60 cm, and the heat-resistant bushing (2) has a length of 20-30 cm.

7. The coke thermal performance testing reactor according to claim 1, characterized in that, The working surface of the pore support (5) is provided with multiple through holes with the same spacing; The interval between two adjacent through holes is 4 to 6 mm.

8. The coke thermal performance testing reactor according to claim 4, characterized in that, The end of the outer shell (3) opposite to the air outlet (1) is the air inlet (6), and the air inlet (6) is provided with an air inlet (7); The air outlet (1) is provided with the air outlet pipe (13).

9. The coke thermal performance testing reactor according to claim 1, characterized in that, The detection component (4) includes a thermocouple sheath (14) and a thermocouple; The thermocouple sheath (14) extends axially from the outer shell (3) along the reaction chamber (11), with its end located at the center of the coke inside the reaction chamber (11). The thermocouple is inserted inside the thermocouple sheath (14).

10. A coke thermal performance testing system, characterized in that, Includes a heating mechanism, a gas supply mechanism, a data acquisition mechanism, and a coke thermal performance testing reactor as described in any one of claims 1 to 9; The data acquisition mechanism is connected to the detection element (4) of the reactor and is used to record reaction parameters in real time.

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