A device for rapid determination of volatile substances

Abstract

The utility model discloses a kind of volatile matter rapid determination devices, belong to detection equipment technical field.The utility model solves the problem of low detection efficiency and accuracy in the prior art using oven method to detect 105 ℃ volatile matter content.The utility model includes: cabinet, temperature detection mechanism, weighing mechanism and halogen lamp are arranged in the cabinet, the halogen lamp is towards weighing mechanism arrangement;Sample disc, the sample disc can be placed on weighing mechanism;The top of the cabinet is provided with gas outlet, and the cabinet is provided with the anti-pollution mechanism matched with gas outlet.The utility model can complete the determination of titanium dioxide 105 ℃ volatile matter within 4-5 minutes, greatly shorten test cycle, improve detection efficiency, can provide quality data support for production process in time, meet the needs of fast production of enterprise.

Description

Technical Field

[0001] This utility model belongs to the field of detection equipment technology, specifically relating to a rapid volatile matter determination device. Background Technology

[0002] In the production and quality control of titanium dioxide, the volatile matter content at 105℃ is a key quality indicator, reflecting the content of moisture and other volatile substances in the titanium dioxide. The traditional method for determining the volatile matter content at 105℃ in titanium dioxide is the oven method (GB 5211.3-85). The required instruments include: a weighing bottle, a balance, an oven, and a desiccator. The steps include: opening the weighing bottle lid, heating it in an oven at 105±2℃ for 2 hours, then removing it and cooling it in a desiccator for 30 minutes. Replacing the lid, weighing to a depth of 0.0001g, and recording this as m1. Evenly spreading a 10±1g sample layer at the bottom of the weighing bottle, closing the lid, and weighing to a depth of 0.0001g, recording this as m2. Opening the lid, heating the weighing bottle and sample in an oven at 105±2℃ for 2 hours, removing them, and cooling them in a desiccator for 30 minutes. Replacing the lid, weighing to a depth of 0.0001g, and recording this as m3. Then, using the formula... The volatile content of titanium dioxide at 105℃ was calculated.

[0003] The following problems exist in using the oven drying method to detect the volatile content at 105℃:

[0004] 1. The testing time is long, which seriously affects the testing efficiency;

[0005] 2. The oven drying method is greatly affected by factors such as ambient temperature and humidity, resulting in poor accuracy and repeatability of the test results;

[0006] 3. The operation is cumbersome and prone to human error. Furthermore, the sample may absorb moisture from the air before being weighed after being taken out of the oven, which may affect the accuracy of the mass measurement.

[0007] 4. The oven is relatively large in size, and it consumes a lot of energy to maintain a constant temperature of 105℃. Utility Model Content

[0008] To address the issues of low detection efficiency and accuracy in existing technologies that use the oven drying method to detect volatile matter content at 105℃, this invention provides a rapid volatile matter determination device.

[0009] The technical solution adopted in this utility model is as follows:

[0010] A rapid volatile matter determination device, comprising:

[0011] The enclosure contains a temperature detection mechanism, a weighing mechanism, and a halogen lamp, with the halogen lamp facing the weighing mechanism.

[0012] A sample tray, which can be placed on a weighing mechanism;

[0013] An air vent is provided on the top of the housing, and an anti-pollution mechanism that cooperates with the air vent is provided on the housing.

[0014] This invention employs a halogen lamp as the heating source, which emits short-wavelength infrared radiation, resulting in rapid heating, high heating efficiency, and uniform heat distribution. When the titanium dioxide sample is placed on the sample tray, the halogen lamp quickly generates heat and radiates it to the sample surface. This heat rapidly penetrates the sample, causing 105°C volatiles (such as moisture and other volatile components) to vaporize and escape within a short time. The weighing mechanism detects the change in sample mass before and after heating, and the 105°C volatile content of the titanium dioxide is calculated based on this change. The generated 105°C volatiles can be discharged through the outlet, while the anti-contamination mechanism prevents external substances from entering the chamber and contaminating the sample, ensuring detection accuracy.

[0015] Preferably, the air outlet is located at the top of the housing, and a cover is provided above the housing to block the air outlet. The cover is connected to the housing by a connecting block, and a gap is provided between the cover and the air outlet. The air outlet and the gap form an exhaust channel with the inlet facing upward and the outlet facing downward.

[0016] By adopting this technical solution, a curved exhaust channel can be formed by setting a cover, so that the gas inside the box can be discharged, but external impurities are difficult to enter the box.

[0017] Preferably, the anti-pollution mechanism includes a flexible cover disposed within the air outlet. The flexible cover includes a connecting ring connected to the inner wall of the air outlet. The connecting ring is provided with a connecting groove, and the cover is disposed within the connecting groove. The cover and the connecting groove are connected by a flexible component.

[0018] After adopting this technical solution, in order to ensure the detection accuracy, the box is set as a sealed structure. When the air pressure on the cover is greater than the friction between the cover and the connecting groove, the cover can be pushed up to release the gas and relieve the pressure. After the pressure relief is completed, the cover will automatically close to prevent other impurities from entering, thereby ensuring the detection accuracy.

[0019] Preferably, the distance between the halogen lamp and the weighing mechanism is 10-15cm.

[0020] By adopting this technical solution, the distance between the halogen lamp and the weighing mechanism can be reasonably controlled to control the distance between the halogen lamp and the sample, thus ensuring the treatment effect.

[0021] Preferably, there are several air outlets, each with a diameter of 0.5-1cm.

[0022] Preferably, the side of the box is provided with an opening, and a box door is provided at the opening.

[0023] After adopting this technical solution, samples can be placed inside by opening the box door.

[0024] Preferably, the device also includes a display screen located outside the enclosure, which is electrically connected to the temperature detection mechanism and the weighing mechanism.

[0025] After adopting this technical solution, the temperature inside the chamber and the weight of the sample can be displayed on the screen. The power of the halogen lamp can be controlled according to the displayed temperature to quickly reach 105℃.

[0026] Preferably, the device also includes a controller, which is electrically connected to a display screen located outside the enclosure, and is electrically connected to a temperature detection mechanism, a weighing mechanism, and a halogen lamp.

[0027] After adopting this technical solution, the control system can automatically adjust the power of the halogen lamp and, in conjunction with the temperature feedback from the temperature detection mechanism, adjust the temperature to 105℃. Then, the control system can automatically calculate the 105℃ volatile content of the sample based on the weight data of the weighing mechanism and display the result on the display screen. This enables automatic detection of the 105℃ volatile content in the sample, saving manpower.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0029] 1. Compared with the testing time of traditional ovens, this utility model utilizes the rapid heating characteristics of halogen lamps to complete the determination of volatiles of titanium dioxide at 105℃ within 4-5 minutes, which greatly shortens the testing cycle, improves the detection efficiency, and can provide timely quality data support for the production process, meeting the needs of enterprises for rapid production.

[0030] 2. This utility model has the advantages of good accuracy and repeatability of the measurement results, and effectively reduces the influence of human error and environmental factors on the measurement results. Attached Figure Description

[0031] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0032] Figure 1 This is a schematic diagram of the structure of the anti-pollution mechanism in this utility model when it is a cover;

[0033] Figure 2 This is a structural diagram of a pollution prevention mechanism that is a flexible cover.

[0034] Among them: 1-box body, 2-box door, 3-weighing mechanism, 4-temperature detection mechanism, 5-halogen lamp, 6-air outlet, 7-gap, 8-baffle, 9-connecting block, 10-connecting ring, 11-connecting groove, 12-cover, 13-flexible component. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application 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 this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] In the description of the embodiments of this application, it should be noted that the terms "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, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this application and 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 this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] The following is combined Figures 1-2 This utility model will be described in detail.

[0038] like Figure 1 As shown, a rapid volatile matter determination device includes:

[0039] The chamber 1 contains a temperature detection mechanism 4, a weighing mechanism 3, and a halogen lamp 5, with the halogen lamp 5 facing the weighing mechanism 3. The chamber 1 serves to house the sample, temperature detection mechanism 4, weighing mechanism 3, and halogen lamp 5, providing a relatively isolated environment for testing. Its dimensions can be set according to the volume of other internal mechanisms and the sample volume to be tested in a single test. The temperature detection mechanism 4 can be a temperature sensor; in this embodiment, the temperature sensor is positioned close to the weighing mechanism to improve temperature detection accuracy. In this embodiment, the temperature detection mechanism 4 and the weighing mechanism 3 are both located at the bottom of the chamber 1, while the halogen lamp 5 is located at the top of the chamber 1, opposite to the weighing mechanism. In this embodiment, the weighing mechanism 3 uses a high-precision weighing instrument with an accuracy of 0.1 mg, which can monitor sample mass changes in real time.

[0040] A sample tray, which can be placed on the weighing mechanism 3, is sized according to the volume of the sample to be tested in a single session. It is cleaned before each use to avoid cross-contamination. In this embodiment, the distance between the halogen lamp 5 and the weighing mechanism 3 is 12cm.

[0041] An air outlet 6 is provided on the top of the chamber 1, and an anti-contamination mechanism that cooperates with the air outlet 6 is provided on the chamber 1. In this embodiment, the 105°C volatiles generated can be discharged from the air outlet 6, while the anti-contamination mechanism can prevent external substances from entering the chamber 1 from the air outlet and contaminating the sample, so as to ensure the detection accuracy.

[0042] The method of using this utility model is as follows:

[0043] 1. Check if the instrument is level; 2. Place the empty sample pan flat on the weighing mechanism 3; 3. Press the tare button; 4. Take about 10g of titanium dioxide sample and spread it evenly on the sample pan with a thickness of 1cm; 5. Turn on the halogen lamp 5 and start the measurement. (As heating proceeds, the volatiles in the titanium dioxide gradually evaporate, and the sample mass continuously decreases. After the set heating time is reached, turn off the halogen lamp 5, and calculate the volatile content at 105℃ based on the recorded sample mass before and after heating.)

[0044] Based on the above embodiments, in another preferred embodiment, an air outlet 6 is provided on the top of the chamber 1, and an anti-contamination mechanism that cooperates with the air outlet 6 is provided on the chamber 1. In this embodiment, the 105°C volatiles generated can be discharged from the air outlet 6, while the anti-contamination mechanism can prevent external substances from entering the chamber 1 from the air outlet and contaminating the sample, thereby ensuring the accuracy of the detection.

[0045] Based on the above embodiments, in another preferred embodiment, the air outlet 6 is located at the top of the housing 1, and a cover 8 is provided above the housing 1 to block the air outlet 6. In this embodiment, the cover 8 is shaped like a house roof, and the cover 8 is connected to the housing 1 by a connecting block 9. In this embodiment, both the cover 8 and the connecting block can be made of stainless steel. A gap 7 is provided between the cover 8 and the air outlet 6, and the air outlet 6 and the gap 7 form an exhaust channel with the inlet facing upward and the outlet facing downward. In this embodiment, by setting the cover 8, a curved exhaust channel can be formed, so that the gas inside the housing 1 can be discharged, but external impurities are difficult to enter the housing 1.

[0046] Based on the above embodiments, in another preferred embodiment, the anti-pollution mechanism includes a flexible cover disposed within the air outlet 6. The flexible cover includes a connecting ring 10 connected to the inner wall of the air outlet 6. The connecting ring 10 is provided with a connecting groove 11, and a cover 12 is disposed within the connecting groove 11. The cover 12 and the connecting groove 11 are partially connected by a flexible component 13. In this embodiment, the connecting ring 10, the cover 12, and the flexible component 13 are all made of high-temperature resistant silicone. The part of the cover 12 without the flexible component 13 is connected to the connecting groove 11 by friction. In this embodiment, when the pressure exerted by the air on the cover 12 is greater than the friction between the cover 12 and the connecting groove 11, the cover 12 can be pushed up to release the gas and relieve pressure. After the pressure relief is completed, the cover 12 automatically closes to prevent other impurities from entering, thereby ensuring detection accuracy.

[0047] Based on the above embodiments, in another preferred embodiment, several air outlets 6 are provided, and the diameter of each air outlet 6 is 0.5-1cm. In this embodiment, it is set to 1cm.

[0048] Based on the above embodiments, in another preferred embodiment, the side of the box 1 is provided with an opening, and a door 2 is provided at the opening. The sample can be taken out or put in through the door 2.

[0049] Based on the above embodiments, another preferred embodiment further includes a display screen disposed outside the chamber 1, which is electrically connected to the temperature detection mechanism 4 and the weighing mechanism 3. In this embodiment, the display screen can display the temperature inside the chamber 1 and the weight of the sample, so as to record the weight change data. Subsequently, the volatile content at 105°C can be manually calculated based on the recorded weight data. The power of the halogen lamp 5 can be controlled according to the displayed temperature to quickly reach 105°C.

[0050] Based on the above embodiments, another preferred embodiment further includes a controller electrically connected to a display screen disposed outside the housing 1. The controller is electrically connected to the temperature detection mechanism 4, the weighing mechanism 3, and the halogen lamp 5. The control system can automatically adjust the power of the halogen lamp 5 and, in conjunction with the temperature feedback from the temperature detection mechanism 4, regulate the temperature to 105°C. Furthermore, the control system can automatically calculate the 105°C volatile content of the sample based on the weight data from the weighing mechanism 3 and display the result on the display screen. This enables automatic detection of the 105°C volatile content in the sample, saving manpower.

[0051] The performance data of this utility model are shown in Table 1:

[0052] Table 1

[0053]

[0054] The results of the three sets of parallel data in Table 1 show that the results of the sample in the same time period are basically consistent with small deviations. This indicates that the data fluctuation of the volatiles of titanium dioxide at 105℃ using halogen lamp 5 is small, which can effectively improve the accuracy and precision of the analysis results. Moreover, the results tend to stabilize after the instrument is heated for 3 minutes, indicating that this invention can realize the rapid detection of the volatile content of titanium dioxide at 105℃.

[0055] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A rapid volatile matter determination device, characterized in that: include: The box (1) is equipped with a temperature detection mechanism (4), a weighing mechanism (3) and a halogen lamp (5), and the halogen lamp (5) is positioned facing the weighing mechanism (3); Sample tray, which can be placed on the weighing mechanism (3); An air outlet (6) is provided on the top of the box (1), and an anti-pollution mechanism that cooperates with the air outlet (6) is provided on the box (1).

2. The rapid volatile matter determination device according to claim 1, characterized in that: The air outlet (6) is located on the top of the box (1). A cover (8) is provided above the box (1) to cover the air outlet (6). The cover (8) is connected to the box (1) by a connecting block (9). A gap (7) is provided between the cover (8) and the air outlet (6). The air outlet (6) and the gap (7) form an exhaust channel with the inlet facing upward and the outlet facing downward.

3. The rapid volatile matter determination device according to claim 1, characterized in that: The pollution prevention mechanism includes a flexible cover set in the air outlet (6). The flexible cover includes a connecting ring (10) connected to the inner wall of the air outlet (6). A connecting groove (11) is provided on the connecting ring (10). A cover (12) is provided in the connecting groove (11). The cover (12) and the connecting groove (11) are partially connected by a flexible component (13).

4. A rapid volatile matter determination device according to any one of claims 1-3, characterized in that: The air outlet (6) is provided in several parts, and the diameter of each air outlet (6) is 0.5-1cm.

5. A rapid volatile matter determination device according to any one of claims 1-3, characterized in that: The distance between the halogen lamp (5) and the weighing mechanism (3) is 10-15cm.

6. A rapid volatile matter determination device according to any one of claims 1-3, characterized in that: The side of the box (1) is provided with an opening, and a box door (2) is provided at the opening.

7. A rapid volatile matter determination device according to any one of claims 1-3, characterized in that: It also includes a display screen located outside the housing (1), which is electrically connected to the temperature detection mechanism (4) and the weighing mechanism (3).

8. A rapid volatile matter determination device according to any one of claims 1-3, characterized in that: It also includes a controller, which is electrically connected to a display screen located outside the housing (1), and the controller is electrically connected to a temperature detection mechanism (4), a weighing mechanism (3) and a halogen lamp (5).

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