A device and method for measuring the temperature of material in a furnace

Abstract

The application belongs to the technical field of furnace material temperature measurement, and provides a furnace material temperature measurement device and method, which comprises: a body with a closed inner cavity, the body being adapted to extend into the furnace through the outer wall, heating interlayer and inner wall of the furnace body at least in part, and the part of the body in the furnace serving as a temperature sensing part; a baffle adapted to be arranged on the inner wall of the furnace body and located on one side of the temperature sensing part, the baffle being adapted to intercept the material in the furnace when the furnace body rotates so that the intercepted material contacts the temperature sensing part; and a thermocouple extending into the inner cavity and contacting the temperature sensing part, adapted to obtain the temperature of the material in the furnace by measuring the temperature of the temperature sensing part. The furnace material temperature measurement device intercepts the material in the furnace by the baffle, so that the material can contact the temperature sensing part, and the temperature of the material is measured by the thermocouple contacting the temperature sensing part, so that the temperature of the material in the furnace can be intuitively understood, the temperature can be accurately adjusted, and the consistency of the fired material is improved.

Description

Technical Field

[0001] This invention relates to the field of furnace material temperature measurement technology, specifically to a furnace material temperature measurement device and method. Background Technology

[0002] In industrial production, measuring the temperature of materials inside large or enclosed rotary reactors (such as rakes, rotary kilns, and double-cone reactors) is often difficult. The main reason is that monitoring probes cannot ensure direct contact with the material; the measured values ​​are often the temperature of the furnace wall, furnace cavity, or heating jacket. When the furnace wall temperature exceeds 800℃, the temperature difference between the furnace wall, material, and internal air can often reach over 50℃. Operators cannot directly understand the temperature of the material inside the furnace through thermometer readings and must adjust the temperature based on experience, ultimately leading to poor consistency in the fired materials or even failing to obtain the desired product. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is that in the prior art, operators cannot intuitively understand the temperature of the material in the furnace through thermometer readings, and can only adjust the temperature based on experience, which ultimately leads to poor consistency of the fired material or even failure to obtain the target product. Therefore, the present invention provides a furnace material temperature measuring device and method.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0005] A furnace material temperature measuring device includes: a body having a closed inner cavity, the body being at least partially adapted to extend into the furnace through the outer wall, heating jacket, and inner wall of the furnace body, the portion of the body located inside the furnace serving as a temperature sensing element; a baffle adapted to be disposed on the inner wall of the furnace body, the baffle being located on one side of the temperature sensing element, the baffle being adapted to intercept the material inside the furnace when the furnace body rotates, so that the intercepted material comes into contact with the temperature sensing element; and a thermocouple extending into the inner cavity and in contact with the temperature sensing element, adapted to obtain the temperature of the material inside the furnace by measuring the temperature of the temperature sensing element.

[0006] Furthermore, the temperature sensing element is flush with the inner wall of the furnace body.

[0007] Furthermore, the temperature sensing element is made of an insulating and thermally conductive material.

[0008] Furthermore, the rest of the body, except for the temperature sensing part, is made of a high-temperature resistant thermally conductive material.

[0009] Furthermore, the main body is a rectangular box.

[0010] Furthermore, the inner cavity is a vacuum cavity.

[0011] Furthermore, the end face shape of the baffle includes one or more of the following: triangle, circle, and trapezoid.

[0012] Furthermore, the hot end of the thermocouple extends into the inner cavity and contacts the temperature sensing part, while the cold end of the thermocouple is located outside the inner cavity.

[0013] A method for measuring the temperature of materials inside a furnace, comprising the furnace material temperature measuring device described in any one of the above claims, further comprising the following steps: extending the temperature sensing part of the main body into the furnace; setting a baffle on the inner wall of the furnace body, with the baffle located on one side of the temperature sensing part, so that when the furnace body rotates, the baffle can intercept the material inside the furnace, so that the intercepted material comes into contact with the temperature sensing part; extending a thermocouple into the inner cavity of the main body and contacting the temperature sensing part, so that when the material comes into contact with the temperature sensing part, the temperature of the material inside the furnace is indirectly obtained by measuring the temperature of the temperature sensing part.

[0014] Furthermore, the method for measuring the temperature of materials inside the furnace also includes the following steps: continuing to rotate the furnace body to allow the material intercepted by the baffle to slide down, so that the temperature sensing part comes into contact with the air inside the furnace; indirectly obtaining the temperature of the air inside the furnace by measuring the temperature of the temperature sensing part through a thermocouple; and adjusting the heating temperature according to the temperature range formed by the temperature of the material inside the furnace and the temperature of the air inside the furnace.

[0015] The technical solution of this invention has the following advantages:

[0016] The furnace material temperature measuring device provided by the present invention uses a baffle to intercept the material in the furnace, so that the material can come into contact with the sensing part, and then the temperature of the material is measured by a thermocouple in contact with the sensing part. This allows for a direct understanding of the temperature of the material in the furnace, which facilitates precise temperature adjustment and helps improve the consistency of the fired material. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the furnace material temperature measuring device in use according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the temperature sensing part in the middle;

[0020] Figure 3 This is a flowchart of the furnace material temperature measurement method in an embodiment of the present invention.

[0021] 1. Body; 2. Inner cavity; 3. Thermocouple;

[0022] 4. Baffle; 5. Temperature sensing element; 6. Material inside the furnace;

[0023] 7. Inner wall; 8. Outer wall; 9. Heating interlayer. Detailed Implementation

[0024] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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.

[0025] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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 element 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, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] Figure 1 This is a schematic diagram of the furnace material temperature measuring device in use according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the temperature sensing part in the middle; as shown Figure 1 and Figure 2As shown, this embodiment provides a furnace material temperature measuring device, including: a body 1 having a closed inner cavity 2, the body 1 being at least partially adapted to extend into the furnace through the outer wall 8, heating jacket 9, and inner wall 7 of the furnace body, the portion of the body 1 located inside the furnace serving as a temperature sensing part 5. For example, the body 1 can have a cylindrical or cuboid structure. For example, a mounting hole can be provided on the furnace body, and the body 1 can be inserted into the mounting hole, with the body 1 bonded and sealed to the wall of the mounting hole. For example, when the temperature sensing part 5 is flush with the inner wall 7 of the furnace body, the temperature sensing part 5 is a temperature sensing surface of the body 1 facing into the furnace, and this temperature sensing surface can be a plane or a curved surface adapted to the curvature of the inner wall 7. For example, the length of the body 1 can be greater than the depth of the mounting hole, in which case a portion of the body 1 remains outside the furnace body.

[0029] A baffle 4 is suitable for being installed on the inner wall 7 of the furnace body, and the baffle 4 is located on one side of the temperature sensing part 5. The baffle 4 is suitable for intercepting the material in the furnace when the furnace body rotates, so that the intercepted material comes into contact with the temperature sensing part 5. For example, the baffle 4 can be welded to the inner wall 7 of the furnace body. The baffle 4 extends along the axial direction of the furnace body, and the length of the baffle 4 is greater than the length of the temperature sensing part 5 in the axial direction of the furnace body, so as to ensure that a sufficient amount of material is intercepted and comes into contact with the temperature sensing part 5.

[0030] Thermocouple 3 extends into the inner cavity 2 and contacts the temperature sensing part 5, and is suitable for obtaining the temperature of the material 6 in the furnace by measuring the temperature of the temperature sensing part 5.

[0031] To improve the measurement effect, the temperature measurement device for the material inside the furnace can be installed at different locations in the furnace body.

[0032] The furnace material temperature measuring device provided in this embodiment uses a baffle 4 to intercept the material in the furnace, allowing the material to come into contact with the sensing part. The temperature of the material is then measured by the thermocouple 3 that is in contact with the sensing part. This allows for a direct understanding of the temperature of the material 6 in the furnace, facilitating precise temperature adjustment and improving the consistency of the fired material.

[0033] Preferably, the temperature sensing part 5 is flush with the inner wall 7 of the furnace body, so that the intercepted material can be smoothly piled up above the temperature sensing part 5. Preferably, the main body 1 is a cuboid-shaped box, in which case the temperature sensing part 5 is a rectangular plane.

[0034] The temperature sensing part 5 is made of an insulating and thermally conductive material, such as ceramic. The rest of the body 1, except for the temperature sensing part 5, is made of a high-temperature resistant and thermally conductive material. Preferably, the inner cavity 2 is a vacuum cavity. This arrangement avoids the common contact leakage phenomenon of the thermocouple 3, and also avoids interference from high-temperature objects such as the furnace exterior, inner wall 7, and heating jacket 9 on the thermocouple 3, which is beneficial to improving the accuracy of temperature measurement of the material 6 inside the high-temperature furnace.

[0035] The end face shape of the baffle 4 includes one or more of the following: triangle, circle, and trapezoid. For example, the end face shape of the baffle 4 can be triangular, and during installation, the tip of the baffle 4 is positioned facing the center of the furnace body.

[0036] In this configuration, the hot end of the thermocouple 3 extends into the inner cavity 2 and contacts the temperature sensing part 5, while the cold end of the thermocouple 3 is located outside the inner cavity 2. This arrangement facilitates readings from outside the furnace body.

[0037] Another embodiment also provides a method for measuring the temperature of materials inside a furnace, including the furnace material temperature measuring device of any of the above claims, and further including the following steps: extending the temperature sensing part 5 of the main body 1 into the furnace; setting a baffle 4 on the inner wall 7 of the furnace body, and the baffle 4 being located on one side of the temperature sensing part 5, so that when the furnace body rotates, the baffle 4 can intercept the material inside the furnace, so that the intercepted material comes into contact with the temperature sensing part 5; extending a thermocouple 3 into the inner cavity 2 of the main body 1 and contacting the temperature sensing part 5, so that when the material comes into contact with the temperature sensing part 5, the temperature of the material 6 inside the furnace is indirectly obtained by measuring the temperature of the temperature sensing part 5.

[0038] The method for measuring the temperature of the material inside the furnace also includes the following steps: Continuing to rotate the furnace body, causing the material intercepted by the baffle 4 to slide down, allowing the temperature sensing part 5 to contact the air inside the furnace; indirectly obtaining the temperature of the air inside the furnace by measuring the temperature of the temperature sensing part 5 through the thermocouple 3; adjusting the heating temperature according to the temperature range formed by the temperature of the material 6 inside the furnace and the temperature of the air inside the furnace. Since the temperature of the air inside the furnace is generally lower than the temperature of the material, when the rotary heating reactor reaches its operating temperature and begins to stabilize, the temperature measured by the thermocouple 3 should continuously change within a certain temperature range. The lower edge of this temperature range represents the temperature of the air inside the furnace at the location of the thermocouple 3. At this time, the baffle 4 rotates with the furnace body to a higher position. When the baffle 4 reaches its highest point, all the intercepted material slides down, exposing the temperature sensing part 5 to contact the air inside the furnace. The upper edge of this temperature range represents the temperature of the material 6 inside the furnace at the location of the thermocouple 3. At this time, the baffle 4 rotates with the furnace body to a lower position. When the baffle 4 reaches its lowest point, the intercepted material completely covers the temperature sensing part 5, and the temperature sensing part 5 contacts the material 6 inside the furnace.

[0039] In summary, the furnace material temperature measuring device and method of this application can accurately measure the material temperature and furnace air temperature at a certain location inside the furnace.

[0040] The furnace material temperature measuring device and method in this application, combined with the conventionally measured temperature in the heating jacket, can more accurately adjust the temperature of the material being fired in different areas of the rotary reactor, thereby better controlling the state of the material throughout the furnace and ensuring that the material reacts at the designed temperature.

[0041] The furnace material temperature measuring device and method in this application, through the introduction of insulating materials and a vacuum chamber, not only avoids the common contact leakage phenomenon of thermocouples, but also avoids the interference of high-temperature objects such as furnace walls and heating jackets on thermocouples, thus completely solving the problem of inaccurate temperature measurement of high-temperature furnace materials.

[0042] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A furnace material temperature measuring device, characterized in that, include: The body has a closed inner cavity, and the body is at least partially adapted to extend into the furnace through the outer wall, heating jacket and inner wall of the furnace body, and the portion of the body located in the furnace serves as a temperature sensing part; A baffle is adapted to be installed on the inner wall of the furnace body, and the baffle is located on one side of the temperature sensing part. The baffle is adapted to intercept the material in the furnace when the furnace body rotates, so that the intercepted material comes into contact with the temperature sensing part. A thermocouple extends into the inner cavity and contacts the temperature sensing part, and is suitable for obtaining the temperature of the material inside the furnace by measuring the temperature of the temperature sensing part; The temperature sensing element is flush with the inner wall of the furnace body; The temperature sensing element is made of insulating and thermally conductive material; The body, except for the temperature sensing part, is made of a high-temperature resistant thermally conductive material. The main body is a rectangular box; The inner cavity is a vacuum cavity; The hot end of the thermocouple extends into the inner cavity and is in contact with the temperature sensing part, while the cold end of the thermocouple is located outside the inner cavity.

2. The furnace material temperature measuring device according to claim 1, characterized in that, The end face shape of the baffle includes one or more of the following: triangle, circle, and trapezoid.

3. A method for measuring the temperature of materials inside a furnace, characterized in that, The furnace material temperature measuring device according to any one of claims 1-2 further includes the following steps: The temperature-sensing part of the main body extends into the furnace; The baffle is installed on the inner wall of the furnace body and is located on one side of the temperature sensing part so that when the furnace body rotates, the baffle can intercept the material in the furnace so that the intercepted material comes into contact with the temperature sensing part. The thermocouple is inserted into the inner cavity of the body and comes into contact with the temperature sensing part, so that the temperature of the material in the furnace can be indirectly obtained by measuring the temperature of the temperature sensing part when the material comes into contact with the temperature sensing part.

4. The method for measuring the temperature of materials inside the furnace according to claim 3, characterized in that, It also includes the following steps: Continue rotating the furnace body to allow the material blocked by the baffle to slide down, so that the temperature sensing part can come into contact with the air inside the furnace; The temperature of the air inside the furnace is indirectly obtained by measuring the temperature of the sensing element using a thermocouple. The heating temperature is adjusted according to the temperature range formed by the temperature of the material inside the furnace and the temperature of the air inside the furnace.

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