TWM645054U - Device for measuring thermal weight loss of mud material - Google Patents

Abstract

A device for measuring thermal weight loss of mud material, including: a support frame with a first through hole; an electric heating box provided on the support frame, the electric heating box has a second through hole and a third through hole, the second through hole is The perforations and the first perforations are aligned with each other, and an air exhauster is arranged around the third perforations; a heat-insulating column is passed through the first through-hole and the second perforation, and the heat-insulating column is erected above a weight scale and Partially extends into the electric heating box; an atmosphere control box is located in the electric heating box and placed on the thermal insulation column. There is a sample box inside the atmosphere control box, and the sample box is configured to accommodate a mud material sample; a thermometer, adjacent to the atmosphere control box; and a data logger, electrically connected to the weight gauge and the thermometer.

Description

Mud material thermal weight loss measuring device

This application relates to a measurement technology, in particular to a device for measuring the thermal weight loss of mud materials.

In the ironmaking process, mud blocking material is an unshaped refractory material used in blast furnace tapping operations. For example, during the tapping process, molten iron and slag are discharged from the inside of the blast furnace into the flow channel through the taphole. At the end of tapping, in order to prevent the molten iron and slag from continuing to flow out, the taproom personnel will use a mud blocking machine to block the flow. The mud material is pushed into the blast furnace through the tap hole and seals the tap channel. Subsequently, according to the requirements of the blast furnace tapping operation, the mud blocking material located in the tapping channel is drilled through after a heating process for a period of time (such as several minutes to hours) to carry out the tapping operation of the next batch.

The mud blocking material will be rapidly heated after being pushed into the blast furnace from the tap hole (temperature distribution is about 400 to 1500 degrees Celsius). In the mud blocking material, the low boiling point substances in the binder will volatilize, causing the mud blocking material to lose its plasticity. , and prevent molten iron and slag from flowing out and further carbonizing.

If a large amount of low-boiling point substances volatilize in a short period of time, it will easily destroy the structure of the mud blocking material in the tap channel, causing the risk of iron seepage, affecting the condition of the blast furnace and the safety of personnel in the tap room; if the formula design of the mud blocking material or the selection of binding agent is improper, If the low-boiling point substances are not discharged before the opening of the next furnace, a large amount of smoke will be generated during the opening stage, and may be accompanied by sparks, which will affect the structure of the tap hole blocking material, reduce the tapping performance, pollute the environment and Endangering the safety of personnel in the tapping room; furthermore, the performance of the mud blocking material is closely related to the residual carbon content and carbothermal reduction reaction of the mud blocking material. Therefore, it is necessary to measure the change in the weight of the mud blocking material with temperature to understand the volatilization characteristics of the binder from the mud blocking material at different heating temperatures and heating rates, and to further analyze the reaction kinetics and carbothermal reduction reaction of the mud blocking material, and to improve the effect of the mud blocking material. The material formula development and application process is of great significance. Conventional techniques (such as the use of hanging scales or flat plates) can easily lead to contamination or damage to components, and the resulting weight data of the sample cannot be accurately obtained, which still needs to be improved.

In view of this, it is necessary to provide a technical solution that is different from the previous ones to solve the problems existing in the conventional technology.

The purpose of this application is to provide a device for measuring thermal weight loss of mud material to improve the detection accuracy of blast furnace mud material.

In order to achieve the above purpose, one aspect of the present application provides a mud material thermal weight loss measuring device, which includes: a support frame with a first through hole; an electric heating box disposed on the support frame, the electric heating box has a A second through hole and a third through hole. The second through hole and the first through hole are aligned with each other. An air exhauster is provided around the third through hole. A heat-insulating column is installed through the first through hole and the second through hole. , the thermal insulation column is erected above a weight scale and partially extends into the electric heating box; an atmosphere control box is located in the electric heating box and placed on the thermal insulation column, and a sample box is provided inside the atmosphere control box. The sample box is configured to accommodate a mud sample; a thermometer adjacent to the atmosphere control box; and a data logger electrically connected to the weight gauge and the thermometer.

In some embodiments, the atmosphere control box is a silicon carbide box. The atmosphere control box includes a box body and a box cover. The box body and the box cover are detachably combined.

In some embodiments, the sample box is placed inside the box and coated with coke.

In some embodiments, the coke fills the remaining space inside the box outside of which the sample box is placed.

In some embodiments, the sample box is a ceramic box. The sample box includes a box body and a box cover. The box body and the box cover are detachably combined.

In some embodiments, the sample box has a heat-resistant temperature greater than 500 degrees Celsius.

In some embodiments, the thermal insulation column has a heat-resistant temperature greater than 1600 degrees Celsius.

In some embodiments, there is a gap between the thermal insulation column, the electric heating box and the support frame respectively.

In some embodiments, the weight scale is equipped with a thermal insulation plate, and the thermal insulation plate is disposed between the weight scale and the thermal insulation column.

In some embodiments, a first projected area of the thermal insulation panel on a virtual plane is greater than a second projected area of the thermal insulation column on the virtual plane.

In some embodiments, the heat-insulating column has a base portion and a vertical portion. The base portion is disposed above the weight scale. The vertical portion extends from the base portion into the electric heating box.

In some embodiments, the base portion has a first diameter, the first through hole has a first aperture, the second through hole has a second aperture, and the first diameter is larger than the first aperture and the second aperture. At least 20 mm.

In some embodiments, a chamber inside the electric heating box has a depth, and a length of the vertical portion extending into the chamber is at least one-third of the depth.

In some embodiments, the weight scale is located below the electric heating box.

In some embodiments, the electric heating box is provided with at least one resistive heater.

In some embodiments, the resistive heater is a molybdenum disilicide-containing resistive heater.

In some embodiments, the resistive heater has a notch in its lateral cross-section.

In some embodiments, a distance between the sensing end and the atmosphere control box ranges from 8 to 12 millimeters.

In some embodiments, the air extractor is located above the electric heating box.

In some embodiments, the mud material sample is a blast furnace plugging mud material sample for ironmaking.

In the mud material thermal weight loss measuring device according to the embodiment of the present application, the support frame has the first through hole, the electric heating box is provided on the support frame, the electric heating box has the second through hole and the third through hole, the second through hole is The perforations and the first perforations are aligned with each other, the air extractor is arranged around the third perforations, the heat-insulating pillar is penetrated through the first perforation and the second perforation, and the heat-insulating pillar is erected above the weight scale and partially Stretching into the electric heating box, the atmosphere control box is located in the electric heating box and placed on the thermal insulation column. The sample box is provided inside the atmosphere control box. The sample box is configured to accommodate the mud material sample. The thermometer Adjacent to the atmosphere control box, the data logger is electrically connected to the weight scale and the thermometer. Thereby, during the heating process of the mud sample (such as a blast furnace mud sample for ironmaking), the data recorder can be configured to record changes in several weight values and several temperature values over time as an evaluation Basis for thermal weight loss of mud materials. Therefore, the mud material thermal weight loss measuring device according to the embodiment of the present application can be used to find mud blocking materials suitable for ironmaking needs, which is beneficial to improving product competitiveness.

In order to make the above and other objects, features, and advantages of the present application more obvious and understandable, preferred embodiments of the present invention will be described in detail below along with the accompanying drawings. Furthermore, the directional terms mentioned in this application include, for example, up, down, top, bottom, front, back, left, right, inside, outside, side, peripheral, central, horizontal, transverse, vertical, longitudinal, axial, Radial, uppermost or lowermost, etc., are only directions with reference to the attached drawings. Therefore, the directional terms used are used to explain and understand the present application, rather than to limit the present application.

In the ironmaking process, the quality of the mud blocking material directly affects the smoothness of the iron tapping and is crucial to the quality of the steel. In order to find a suitable mud-blocking material, the requirements for mud-blocking material testing include, for example: (1) The mud-blocking material is a heterogeneous material, and the exhaust characteristics are affected by the sample preparation method. Is the sampling amount representative and the sample preparation method? It is crucial to be consistent and close to the on-site usage conditions; (2) In order to ensure that the test process is close to the on-site operating environment, the mud blocking material experiment requires a reducing atmosphere of up to 1500 degrees Celsius (°C); (3) The mud blocking material is exposed to high temperatures , the binding agent will evaporate quickly, emitting a large amount of odorous and highly polluting gases. Therefore, factors such as the sampling volume of the mud blocking material, sample preparation method, detection temperature, detection atmosphere, and exhaust gas treatment all pose challenges to the real-time measurement process of the thermal weight loss of the mud blocking material.

Please refer to Figure 1. One aspect of the present application provides a device for measuring thermal weight loss of mud material, wherein the mud material is such as but not limited to blast furnace plugging mud material for ironmaking. The device for measuring thermal weight loss of mud material, such as but not limited to It is limited to include: a support frame 1, an electric heating box 2, a thermal insulation column 3, a weight scale 4, an atmosphere control box 5, a sample box 6, a thermometer 7, a data recorder 8 and an air extractor 9 . Examples are given below, but are not limited thereto.

For example, as shown in Figure 1, the support frame 1 can be a support frame made of metal or alloy materials. For example, the support frame 1 can be composed of a platform (such as a plate body or a mesh body) 1a and several pillars 1b. Several pillars 1b are connected to the platform 1a, so that the electric heating box 2 can be placed above the platform 1a, and the heat insulation column 3 and the weight scale 4 can be placed below the platform 1a; the support frame 1 has a first through hole 11, For example, the platform 1a may be provided with the first through hole 11 to allow the thermal insulation column 3 to pass through the platform 1a.

For example, as shown in Figure 1, the electric heating box 2 is an electric heating box that can be used for iron-making or steel-making related supplies, for example, it can provide a thermal environment above 1600 degrees Celsius; the electric heating box 2 is arranged on the support frame 1 , the electric heating box 2 has a second through hole 21 and a third through hole 22. For example, the electric heating box 2 has a housing 2a, and the housing 2a can be provided with the second through hole 21 and the third through hole 22 along a longitudinal direction. For example, the third through hole 22 is located above and the second through hole 21 is located below. The second through hole 21 and the first through hole 11 are aligned with each other to penetrate the heat insulation column 3. The third through hole 22 can be provided around An air extractor 9, such as an axial flow air extractor or a blower type air extractor. For example, the air extractor 9 is located above the electric heating box 2 to accelerate the extraction of the electric heating box 2. Internal gases (such as irritating and polluting gases released by mud blocking materials at high temperatures), for example, the inside of the electric heating box 2 can be surrounded by the shell 2a to form a chamber 2b for accommodating items to be baked. It is understood that the housing 2a can also be appropriately configured to provide an article entry and exit structure (not shown, such as a door or window, etc.) for articles to enter and exit the chamber 2b.

For example, as shown in Figure 1, the electric heating box 2 can be equipped with various electric heating elements to provide heat for the items inside it; in one example, the shell 2a of the electric heating box 2 can be equipped with at least one resistive heating element. Device A, but is not limited to this. For example, the resistive heater A can be a resistive heater containing molybdenum disilicide (MoSi ₂ ). For example, the resistive heater A has a notch in its lateral cross-section, such as the resistive heater A. The lateral cross-section of the resistive heater A can be configured to form a "U"-shaped or "U"-shaped cross-section so as to be disposed around the article entry and exit structure of the housing 2a, but is not limited to this. The resistive heater A Can be configured in other forms to provide the appropriate amount of heat energy.

For example, as shown in Figure 1, the heat-insulating column 3 can be made of refractory materials for iron or steel making, such as alumina, etc. The heat-resistant column 3 has a heat-resistant temperature greater than 1600 degrees Celsius, so that the heat-insulating column 3 can The thermal insulation column 3 can be used for a long time in an environment of 1600 degrees Celsius; the thermal insulation column 3 is erected above the weight scale 4. For example, the weight scale 4 is located below the electric heating box 2. The weight scale 4 can be an electronic The weighing system is used to convert the weight value into an electronic signal to facilitate the collection and statistics of weight change information; the heat-insulating column 3 is installed in the first through hole 11 and the second through-hole 21, so that the heat insulating column 3 is partially extended. into the electric heating box 2, and the heat-insulating column 3 is partially located outside the electric heating box 2; for example, the longitudinal section of the heat-insulating column 3 is slightly in a "convex" shape to effectively reduce heat transfer and heat radiation, such as the The thermal insulation column 3 has a base portion 31 and a vertical portion 32, and the base portion 31 is placed above the weight scale 4; for example, the base portion 31 has a first diameter, and the first through hole 11 has a first diameter. An aperture, the second through hole 21 has a second aperture, the first diameter is at least 20 mm larger than the first aperture and the second aperture; the base part 31 is connected to one end of the vertical part 32, the vertical part The part 32 extends from the base part 31 into the electric heating box 2, and the other end of the vertical part 32 is located in the electric heating box 2. For example, the cavity 2b inside the electric heating box 2 has a depth d, such as the vertical part 32. The part 32 has an upper section and a lower section connected to each other. The vertical part 32 (such as the upper section) extends into the chamber 2b by a length g that is at least one-third of the depth d, but is not limited to this. The upper section of the thermal insulation column 3 is located in the electric heating box 2. It should be understood that a free end of the thermal insulation column 3 (for example, located at the upper section of the vertical portion 32) can be formed into a suitable shape to carry the load. The atmosphere control box 5; it should also be noted that the thermal insulation column 3 and the lining of the electric heating box 2 need to avoid contact, so as not to affect the weighing result. In one example, for example, the thermal insulation column 3 and the electric heating box 2 There is a gap between the heat-insulating column 3 and the support frame 1 respectively. For example, the diameter of the vertical portion 32 of the heat-insulating column 3 is slightly smaller than the diameter of the first through hole 11 and the diameter of the second through hole 21, so as to reduce the pressure from the electric heating box 2. The internal heat is directly conducted to the support frame 1 .

Optionally, as shown in Figure 1, the weight scale 4 can also be equipped with a heat-insulating plate B, such as a circular heat-insulating plate made of refractory material for iron or steelmaking, but is not limited to this. It can also be in other shapes. The heat-insulating plate B is arranged between the weight scale 4 and the heat-insulating column 3 to enhance the heat-insulating effect. For example, the heat-insulating plate B is on a virtual plane (not shown in the figure, for example A first projected area of the virtual plane (located on the ground) is larger than a second projected area of the heat-insulating column 3 on the virtual plane to prevent the heat energy from the electric heating box 2 from being directly transmitted to the weight through the heat-insulating column 3 Gauge 4 to ensure that the weight Gauge 4 has a protective effect against damage caused by high temperatures.

For example, as shown in Figure 1, the atmosphere control box 5 is made of high temperature resistant material. For example, the atmosphere control box 5 is a silicon carbide box, such as a silicon carbide box with an upper cover, which has good thermal shock resistance and can It is not easy to produce cracks after repeated use in the required test temperature range, which can prevent mud samples (such as blast furnace mud samples for ironmaking) from exploding during rapid temperature rise and damaging the electric heating box 2; as shown in Figure 2 As shown, for example, the atmosphere control box 5 includes a box body 51 and a box cover 52. The box body 51 and the box cover 52 are configured to be detachably combined to jointly accommodate the sample box 6, such as the sample box 6 It is placed inside the box 51 and covered with coke. For example, the coke fills the remaining space inside the box 51 outside the sample box 6 . In this way, the sample box containing the mud sample is installed in the atmosphere control box, which can prevent the mud sample from being oxidized during the heating process and affect the measurement accuracy, and can also prevent the mud sample from exploding due to rapid temperature rise. Damage to the electric heating box.

For example, as shown in Figure 1, the ceramic box 6 is made of high-temperature-resistant material. For example, the heat-resistant temperature of the sample box 6 is greater than 500 degrees Celsius, so that the sample box 6 can be used in an environment of 500 degrees Celsius for a long time. For example, the sample box 6 is a ceramic box, such as a ceramic crucible with an upper cover. For example, the sample box 6 includes a box body and a box cover. The box body and the box cover are configured to be detachably combined to accommodate a Mud material samples, such as blast furnace plugging mud samples for ironmaking, but are not limited to this.

For example, as shown in Figure 3, the mud sample can be formed by molding from a sample preparation component C. For example, the sample preparation component C has a mold C1 and a pressing rod C2, and the mold C1 has a mold cavity. C11, for example, the mold cavity C11 and the pressure rod C2 have corresponding shapes (such as cylindrical shape, etc.), and the radial cross-sectional area of the pressure rod C2 is slightly smaller than the radial cross-sectional area of the mold cavity C11 in order to apply pressure to press the sample. Molding, for example, the mold cavity C11 can be filled with the mud material sample, such as a blast furnace mud material sample for ironmaking, which is made of aggregate, powder and binder (such as water, coal tar and resin, etc.) Homogeneous phase material, therefore, the pressing rod C2 can be used to press and form the blast furnace mud sample for ironmaking.

For example, as shown in Figure 1, the thermometer 7 can be an electronic thermometer in order to convert temperature data into electronic signals. For example, the thermometer 7 can be installed at an appropriate position on the shell 2a of the electric heating box 2. The thermometer 7 can be an electronic thermometer. 7 may have a sensing end 71 adjacent to the atmosphere control box 5. For example, a distance between the sensing end 71 and the atmosphere control box 5 ranges from 8 to 12 mm, such as 8, 9 , 10, 11 or 12 mm, but not limited to this.

For example, as shown in Figure 1, the data logger 8 can be an electronic device with a data storage function. Optionally, the data logger 8 can also have a signal processing function to perform functions such as data format conversion or calculation. , such as electronic devices with data processing functions, such as digital signal processors or industrial computers; the data logger 8 is electrically connected to the weight gauge 4 and the thermometer 7, and the data logger 8 can be configured to record several weight values Changes over time and changes in several temperature values over time.

It should be understood that during the use of the mud material thermal weight loss measuring device in the above embodiment of the present application, some components of the mud material thermal weight loss measuring device will be supplied with appropriate power, such as power supply to an electric heating box, Weight gauge, thermometer, data recorder and air extractor, etc. The electric heating box, the data recorder and the air extractor can also be coupled to a control platform to facilitate them to provide appropriate functions.

For example, in an operation example, as shown in Figures 1 to 3, an appropriate amount (for example, 200 grams) of mud blocking material sample is first weighed and put into the mold cavity C11 of the mold C1. C2 applies pressure (for example, 70 kilograms (Kg)/square centimeters (cm ² )), and continues to press for a sample preparation time (for example, 1 minute). After demoulding, the mud sample can be obtained (for example, blast furnace plugging for ironmaking mud sample). Subsequently, the mud material sample is weighed and recorded as an initial weight m ₁ ; subsequently, the mud material sample is put into the sample box 6 , and the sample box 6 is sealed and put into the atmosphere control box 5 to Coke fills the atmosphere control box 5 so that the sample box 6 is completely covered with coke. Subsequently, the weight gauge 4 is turned on and reset to zero, the atmosphere control box 5 is placed on the heat insulation column 3, a test temperature (for example, 1500 degrees Celsius) is set, the air extractor 9 is turned on, and the electric heating box 2 is Preparatory work before heating (such as closing the furnace door); subsequently, start the test operation. The data recorder 8 can record the weight from the weight scale 4 and the temperature change from the thermometer 7 over time, for example, once every minute; Subsequently, the data recorder 8 can also calculate the difference relationship curve between the weight change and the initial weight m ₁ in response to temperature changes, so as to facilitate observation of the thermal weight loss characteristics of the mud material and serve as a basis for evaluating or adjusting the mud material.

In the mud material thermal weight loss measuring device according to the embodiment of the present application, the support frame has the first through hole, the electric heating box is provided on the support frame, the electric heating box has the second through hole and the third through hole, the second through hole is The perforations and the first perforations are aligned with each other, the air extractor is arranged around the third perforations, the heat-insulating pillar is penetrated through the first perforation and the second perforation, and the heat-insulating pillar is erected above the weight scale and partially Stretching into the electric heating box, the atmosphere control box is located in the electric heating box and placed on the thermal insulation column. There is a sample box inside the atmosphere control box. The sample box is configured to accommodate a mud sample. The thermometer is adjacent The atmosphere control box and the data recorder are electrically connected to the weight gauge and the thermometer. Thereby, during the heating process of the mud sample (such as a blast furnace mud sample for ironmaking), the data recorder can be configured to record changes in several weight values and several temperature values over time as an evaluation Basis for thermal weight loss of mud materials.

The device for measuring the thermal weight loss of mud materials in the above embodiments of the present application is particularly suitable for measuring blast furnace mud materials for ironmaking using water, coal tar and resin as binders, and can instantly measure the weight loss and temperature of the mud materials. The changing relationship, and the relevant data are not interfered by sampling and sample preparation, and can be used to study data such as the volatilization curve, solidification rate and reaction kinetics of the cement plugging material binder.

Compared with conventional technologies (such as hanging scales), the weight scale of the clay material thermal weight loss measuring device in the embodiment of the present application is not suspended (for example, located below the electric heating box) and has a double thermal insulation structure (such as Thermal insulation column and thermal insulation plate) can avoid the situation where the measured temperature is limited by the support device and is easily corroded; compared with the conventional technology (such as hanging scales or flat plates), the mud material in the embodiment of the present application The thermal insulation column of the thermal weight loss measurement device has a columnar structure (such as a convex structure), which can effectively reduce heat conduction and radiation, help maintain temperature and protect weighing components (such as weight gauges); compared with conventional Using known technology (such as a flat plate support), the mud material thermal weight loss measurement device in the embodiment of the present application adopts a double-layer protection structure (such as the atmosphere control box and the sample box), which can prevent the mud material from being oxidized during the heating process and affecting the experiment. The accuracy can also prevent the mud sample from bursting due to rapid temperature rise and damaging the electric heating box; it can also instantly remove the irritating and polluting gases released by the mud material at high temperatures. Therefore, the mud material thermal weight loss measuring device according to the embodiment of the present application can be used to find mud blocking materials suitable for ironmaking needs, which is beneficial to improving product competitiveness.

Although the present application has disclosed preferred embodiments, they are not intended to limit the present application. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the present application The scope of protection shall be subject to the scope of the patent application attached.

1: Support frame 11: First piercing 1a:Platform 1b: Pillar 2: Electric heating box 21: Second piercing 22:Third piercing 2a: Shell 2b: Chamber 3: Thermal insulation column 31: Base part 32: Vertical part 4: Weight meter 5: Atmosphere control box 51: Cabinet 52: Box cover 6:Sample box 7: Thermometer 71: Sensing end 8:Data logger 9: Air extractor A: Resistive heater B:Heat break plate C: Sample preparation components C1: Mold C11:Mold cavity C2: pressure rod d: depth g: length

[Figure 1]: A schematic diagram of the combination of the mud material thermal weight loss measuring device according to the embodiment of the present application. [Figure 2]: A three-dimensional schematic diagram of the atmosphere control box according to the embodiment of the present application. [Figure 3]: A three-dimensional schematic diagram of the sample preparation assembly according to the embodiment of the present application.

1: Support frame

11: First piercing

1a:Platform

1b: Pillar

2: Electric heating box

21: Second piercing

22:Third piercing

2a: Shell

2b: Chamber

3: Thermal insulation column

31: Base part

32: Vertical part

4: Weight meter

5: Atmosphere control box

6:Sample box

7: Thermometer

71: Sensing end

8:Data logger

9: Air extractor

A: Resistive heater

B:Heat break plate

d: depth

g: length

Claims (20)

A device for measuring thermal weight loss of mud material, including: a support frame having a first through hole; An electric heating box is installed on the support frame. The electric heating box has a second through hole and a third through hole. The second through hole and the first through hole are aligned with each other. An air extractor is provided around the third through hole; A heat-insulating column is provided through the first through-hole and the second through-hole. The heat-insulating column is erected above a weight scale and partially extends into the electric heating box; An atmosphere control box is located in the electric heating box and placed on the thermal insulation column. There is a sample box inside the atmosphere control box, and the sample box is configured to accommodate a mud sample; a thermometer adjacent to the atmosphere control box; and A data logger is electrically connected to the weight scale and the thermometer. The device for measuring the thermal weight loss of clay materials as described in claim 1, wherein the atmosphere control box is a silicon carbide box, and the atmosphere control box includes a box body and a box cover, and the box body and the box cover are detachably combine. The device for measuring the thermal weight loss of mud material according to claim 2, wherein the sample box is placed inside the box and is covered with coke. The device for measuring the thermal weight loss of mud material as described in claim 3, wherein the coke fills the remaining space inside the box outside of which the sample box is placed. The device for measuring the thermal weight loss of mud material according to claim 1, wherein the sample box is a ceramic box, and the sample box includes a box body and a box cover, and the box body and the box cover are detachably combined. The device for measuring thermal weight loss of mud material as described in claim 1, wherein the heat-resistant temperature of the sample box is greater than 500 degrees Celsius. The thermal weight loss measuring device of mud material as described in claim 1, wherein the heat-resistant temperature of the thermal insulation column is greater than 1600 degrees Celsius. The device for measuring the thermal weight loss of mud material as described in claim 1, wherein there is a gap between the thermal insulation column, the electric heating box and the support frame respectively. The device for measuring the thermal weight loss of mud material as described in claim 1, wherein the weight gauge is equipped with a heat-insulating plate, and the heat-insulating plate is disposed between the weight scale and the heat-insulating column. The device for measuring the thermal weight loss of clay materials as claimed in claim 9, wherein a first projected area of the thermal insulation plate on a virtual plane is greater than a second projected area of the thermal insulation column on the virtual plane. The thermal weight loss measuring device of mud material according to claim 1, wherein the thermal insulation column has a base part and a vertical part, the base part is arranged above the weight scale, and the vertical part is formed by the base part. The seat extends into the electric heating box. The mud material thermal weight loss measuring device as claimed in claim 11, wherein the base part has a first diameter, the first through hole has a first aperture, the second through hole has a second aperture, and the first The diameter is at least 20 mm larger than the first hole diameter and the second hole diameter. The thermal weight loss measuring device of mud material as claimed in claim 11, wherein a chamber inside the electric heating box has a depth, and a length of the vertical portion extending into the chamber is at least one-third of the depth. . The device for measuring the thermal weight loss of mud material as described in claim 1, wherein the weight gauge is located below the electric heating box. The device for measuring the thermal weight loss of mud material according to claim 1, wherein the electric heating box is provided with at least one resistive heater. The device for measuring the thermal weight loss of mud material as described in claim 15, wherein the resistive heater is a resistive heater containing molybdenum disilicide. The device for measuring the thermal weight loss of mud material according to claim 15, wherein the resistive heater has a notch in its lateral cross-section. The thermal weight loss measuring device of mud material as claimed in claim 1, wherein the thermometer has a sensing end, and a distance between the sensing end and the atmosphere control box ranges from 8 to 12 mm. The mud material thermal weight loss measuring device as claimed in claim 1, wherein the air extractor is located above the electric heating box. The device for measuring thermal weight loss of mud material as described in claim 1, wherein the mud material sample is a blast furnace plugging mud material sample for ironmaking.

Images