Method and device for rapidly detecting organic carbon content in ammonium nitrate based on combustion method

Abstract

The present invention discloses a method and device for rapidly detecting the organic carbon content in ammonium nitrate based on a combustion method, which relates to the technical field of organic matter measurement. It includes a base, and a frame assembly is fixedly connected to the top end of the base. The frame assembly includes a frame member, the bottom end of the frame member is fixed to the top end of the base, and a sealing assembly for dividing the interior of the frame member into two inner and outer chambers is fixedly connected inside the frame member. By combining centrifugal spraying and multi-stage combustion technology, the present invention realizes the rapid atomization, drying of the ammonium nitrate mixed liquid and the efficient conversion of organic carbon. Combined with a multi-stage combustion device, it ensures that the organic matter is fully converted into carbon dioxide, shortens the detection period. By directly detecting the concentration of carbon dioxide generated by combustion and combining precise weight measurement and concentration calculation, the content of organic carbon in ammonium nitrate can be quickly obtained, improving the convenience of detection.

Description

Technical Field

[0001] The present invention relates to the technical field of organic matter measurement, and specifically to a method and device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method. Background Art

[0002] As an important chemical raw material, ammonium nitrate has a wide range of applications in the fields of agriculture, medicine, explosives, etc. However, in the production, storage, and use of ammonium nitrate, the control of the organic carbon content is crucial. The level of the organic carbon content not only directly affects the quality and performance of ammonium nitrate, but also relates to its safety and effectiveness in specific applications.

[0003] For example, in the patent publication number "CN114660229A" with the name "Method and Device for Determining the Content of Organic Compounds in Industrial Ammonium Nitrate", the above patent first oxidizes the ammonium nitrate sample. The organic compounds in the ammonium nitrate sample are oxidized to produce carbon dioxide, and the carbon dioxide is absorbed by barium hydroxide solution. Hydrochloric acid standard solution is used to react with the generated barium carbonate, and then sodium hydroxide standard solution is used for back titration, thereby measuring the content of organic compounds in ammonium nitrate. In the above invention, the organic compounds in ammonium nitrate are oxidized to produce carbon dioxide under given conditions, absorbed by barium hydroxide solution, reacted with hydrochloric acid standard solution and barium carbonate, and then back titrated with sodium hydroxide standard solution. The operation method is simple and easy to operate, and the measurement is accurate, which is of great significance for the application of ammonium nitrate.

[0004] The above method involves multiple steps, including the oxidation treatment of the ammonium nitrate sample, the absorption of carbon dioxide, the generation of barium carbonate, the back titration of hydrochloric acid standard solution, and the back titration of sodium hydroxide standard solution, etc. These steps need to be carried out in sequence, and each step requires time to complete. Therefore, the entire detection cycle is relatively long, which is not conducive to the requirements of rapid and efficient detection. For this reason, a method and device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method are invented. Summary of the Invention

[0005] The purpose of the present invention is to provide a method and device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method, including a base, the top of the base is fixedly connected with a frame assembly, the frame assembly includes a frame member, the bottom end of the frame member is fixed to the top of the base, and an inner part of the frame member is fixedly connected with a sealing assembly for dividing the inner part of the frame member into two inner and outer chambers. The two inner and outer chambers in the frame member communicate with each other through a through hole opened on the sealing assembly, and a hole-sealing assembly for sealing the through hole is installed inside the sealing assembly;

[0007] A moving device is installed at the top of the base, and a centrifugal component for centrifugal spraying of ammonium nitrate mixed liquid is installed at the moving end of the moving device. A combustion component is installed in the outer chamber of the frame member;

[0008] The centrifugal component includes a power device for cooperating with the inside of the sealing component to achieve position limitation. The power device is installed at the moving end of the moving device. The output end of the power device is fixedly connected to a fixing frame. The outer wall of the fixing frame is fixedly connected to a second limiting ring. A second limiting groove adapted to the outer wall of the second limiting ring is opened inside the sealing component. A centrifugal lifting device is installed inside the fixing frame. A spraying device is installed inside the fixing frame through a limiting device. The moving end of the centrifugal lifting device is fixedly connected to a sealing cover for blocking the spraying of the spraying device. The top end of the fixing frame is fixedly connected to a contact gear ring for contacting the hole-sealing component and releasing the sealing of the through hole by applying a moving force to the hole-sealing component.

[0009] Furthermore, the power device includes a first motor. The first motor is fixedly installed at the moving end of the moving device. The output end of the first motor is fixedly connected to a transmission gear for controlling the operation of the air flow device. The output end of the transmission gear is fixedly connected to a transmission for transmission. The output end of the transmission gear is fixed to the input end of the transmission. The outer wall of the transmission is fixedly connected to a first limiting ring. The output end of the transmission is fixed to the bottom end of the fixing frame;

[0010] The sealing component includes a first cylinder. The first cylinder is fixed to the inside of the frame member. The bottom end of the first cylinder is rotatably connected to a second cylinder. A through hole for the passage of the mist-like liquid is opened on the outer wall of the second cylinder. The bottom end of the second cylinder is rotatably connected to a third cylinder. The bottom end of the third cylinder is rotatably connected to an internal gear ring. The bottom end of the internal gear ring is rotatably connected to the bottom end inside the frame member. A first limiting groove adapted to the outer wall of the first limiting ring is opened inside the third cylinder. A second limiting groove adapted to the outer wall of the second limiting ring is opened inside the second cylinder.

[0011] Furthermore, the centrifugal lifting device includes a slider. The bottom end of the slider is slidably connected to the bottom end inside the fixing frame. A pressure rod is slidably connected inside the fixing frame. A second spring shock absorber and damper is fixedly connected between the pressure rod and the fixing frame. The top end of the pressure rod is fixed to the bottom end of the sealing cover;

[0012] An air flow device is installed in the outer chamber of the frame member. The hole-sealing assembly includes a fourth spring shock absorber and damper. The bottom end of the fourth spring shock absorber is fixed to the inside of the first cylinder. The telescopic end of the first cylinder is fixedly connected to a fixing ring. The bottom end of the fixing ring is rotatably connected to a sealing cylinder. The outer wall of the sealing cylinder is slidably connected to the inner wall of the second cylinder. The bottom end of the sealing cylinder is fixedly connected to a contact sealing bottom ring adapted to the tooth shape at the top of the contact tooth ring.

[0013] Furthermore, the spraying device includes a moving tank installed inside a fixing frame. A piston is slidably connected inside the moving tank. Spray holes for spraying are formed in the outer wall of the moving tank.

[0014] Furthermore, the air flow device includes wind blades. The inner wall of the wind blades is fixed to the outer wall of the internal gear ring. An air inlet member is fixedly connected inside the frame member. An annular air member is fixedly connected inside the air inlet member. A wind guiding member is fixedly connected inside the annular air member. The inside of the wind guiding member is rotatably connected to the outer wall of the second cylinder and is fixed to the outer wall of the third cylinder.

[0015] Furthermore, a push rod device for pushing the piston to move is fixedly connected inside the first cylinder. The push rod device includes a first telescopic member fixedly installed inside the first cylinder. The telescopic end of the first telescopic member is rotatably connected to a contact cover.

[0016] Furthermore, the moving device includes a rotating frame. The bottom end of the rotating frame is rotatably connected to the top end of the base. A moving frame is slidably connected inside the rotating frame. The outer wall of a first motor is fixed to the inside of the moving frame. A second telescopic member for controlling the movement of the moving frame is fixedly connected between the rotating frame and the moving frame.

[0017] Furthermore, the combustion assembly includes a primary combustion device installed inside the frame member and a secondary combustion device installed at the gas outlet end of the primary combustion device.

[0018] The secondary combustion device includes a cylindrical member. The gas inlet end of the cylindrical member is fixed to the gas outlet end of the heating cylinder. A heating ring is fixedly connected inside the cylindrical member. A guiding thread member for guiding the gas is fixedly connected between the outer wall of the heating ring and the inner wall of the cylindrical member. An oxygen jet device is fixedly connected inside the cylindrical member.

[0019] Furthermore, the primary combustion device includes a heating cylinder fixedly installed inside the frame member. A third telescopic member is fixedly connected inside the frame member. The telescopic end of the third telescopic member is fixedly connected to a sealing ring. A sealing member is fixedly connected between the outer wall of the sealing ring and the inner wall of the frame member.

[0020] Method for rapidly detecting organic carbon content in ammonium nitrate based on combustion method, which adopts the above device for rapidly detecting organic carbon content in ammonium nitrate based on combustion method. The detection method includes:

[0021] Step 1: Take an ammonium nitrate sample with a mass of M, and obtain an acidic solution with a mass of N based on the mass M through an excess calculation method;

[0022] Step 2: Mix and acidify the acidic solution with a mass of N and the ammonium nitrate sample with a mass of M to obtain an ammonium nitrate mixed liquid. Remove the carbon dioxide generated by inorganic substances, concentrate the ammonium nitrate mixed liquid to obtain a concentrated ammonium nitrate mixed liquid, and weigh the concentrated ammonium nitrate mixed liquid to obtain a concentrated ammonium nitrate mixed liquid with a mass of Z;

[0023] Step 3: Divide the concentrated ammonium nitrate mixed liquid into at least three samples. Inject one sample into a moving tank, weigh the moving tank to obtain a mass A1, place the moving tank in a fixed frame, and move the moving tank into the interior of the frame member through a moving device;

[0024] Step 4: Start the device, and detect the concentration of carbon dioxide through a non-dispersive infrared detector to obtain a carbon dioxide concentration value Q;

[0025] Step 5: After completing the detection of carbon dioxide, take out the moving tank from the fixed frame, and weigh the centrifuged moving tank to obtain a mass A2;

[0026] Step 6: Calculate the organic carbon content in ammonium nitrate through a content calculation method;

[0027] Step 7: Repeat the operations for each sample in the order of Step 3, Step 4, Step 5, and Step 6, and process the obtained organic carbon content through an averaging method to obtain the final organic carbon content.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] The method and device for rapidly detecting organic carbon content in ammonium nitrate based on combustion method realize the rapid atomization, drying and efficient conversion of organic carbon of the ammonium nitrate mixed liquid through the combination of centrifugal spraying and multi-stage combustion technology. The centrifugal component automatically releases the seal at a set rotation speed, and with the pressure assistance of the push rod device, the ammonium nitrate liquid can pass through the spray holes. This method can ensure the atomized effect of the ammonium nitrate liquid. Combined with the multi-stage combustion device, it can ensure the full conversion of organic substances into carbon dioxide, and at the same time realize the simultaneous centrifugal spraying, drying and combustion, shortening the detection cycle. By directly detecting the concentration of carbon dioxide generated by combustion, combined with accurate weight measurement and concentration calculation, the organic carbon content in ammonium nitrate can be quickly obtained, improving the convenience of detection.

[0030] Meanwhile, through the collaborative design of the frame component, the sealing component, and the hole-sealing component, the cooperation between the second limiting ring and the second limiting groove and the contact between the contact tooth ring and the contact sealing bottom ring, when the fixing frame is moved inside the second cylinder, through the cooperation between the second limiting ring and the second limiting groove, the accurate alignment of the spray holes and the through holes is achieved, avoiding leakage. The centrifugal lifting device dynamically controls the sealing cover through centrifugal force, ensuring the initial spray velocity and uniformity. At the same time, the contact between the contact tooth ring and the contact sealing bottom ring, and when the fixing frame is moved inside the second cylinder, it pushes the sealing cylinder to move, so that the sealing of the through hole by the sealing cylinder is released, thus facilitating the subsequent alignment of the spray holes and the through holes, ensuring the feasibility of the device, optimizing the combustion environment, and reducing liquid residue.

[0031] The detection method realizes the rapid atomization, drying of the ammonium nitrate mixed liquid, and the efficient conversion of organic carbon through optimizing the process design and combining centrifugal spraying and multi-stage combustion technologies. This process significantly shortens the detection cycle. At the same time, during the operation, by repeatedly injecting the ammonium nitrate mixed liquid into the moving tank, the repeatable detection is realized. This repeatability not only improves the flexibility of the detection, but also ensures the accuracy of the acquired data by repeatedly obtaining the detection data. Brief Description of the Drawings

[0032] Figure 1 Isometric view of the present invention;

[0033] Figure 2 Cross-sectional view of the present invention;

[0034] Figure 3 Cross-sectional view inside the frame member of the present invention;

[0035] Figure 4 Internal view of the secondary combustion device of the present invention;

[0036] Figure 5 Isometric view of the centrifugal component of the present invention;

[0037] Figure 6 Cross-sectional view of the centrifugal component of the present invention;

[0038] Figure 7 Cross-sectional view of the hole-sealing component of the present invention;

[0039] Figure 8 Schematic diagram of the detection method of the present invention.

[0040] In the figure: 1. Frame component; 101. Frame member; 102. First cylinder; 103. Second cylinder; 104. Through hole; 105. Third cylinder; 106. Internal gear ring; 2. Moving device; 201. Rotating frame; 202. Moving frame; 203. Second telescopic member; 3. Centrifugal component; 301. First motor; 302. Driving gear; 303. Transmission; 304. First limiting ring; 305. Fixed frame; 306. Contact gear ring; 307. Slide block; 308. Pressing rod; 309. Second spring shock absorber and damper; 310. Sealing cover; 311. Moving tank; 312. Piston; 313. Second limiting ring; 4. Hole sealing component; 401. Fourth spring shock absorber and damper; 402. Fixed ring; 403. Sealing cylinder; 404. Contact sealing bottom ring; 5. Combustion component; 501. Heating cylinder; 502. Third telescopic member; 503. Cylindrical member; 504. Heating ring; 505. Guide thread member; 506. Oxygen jet device; 507. Sealing ring; 508. Sealing member; 6. Base; 7. Push rod device; 701. First telescopic member; 702. Contact cover; 8. Airflow device; 801. Wind turbine blade; 802. Air outlet member; 803. Ring air member; 804. Air guiding member. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] As Figure 1 - Figure 8 shown, the present invention provides a technical solution: a device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method, including a base 6. The top end of the base 6 is fixedly connected with a frame component 1. The frame component 1 includes a frame member 101. The bottom end of the frame member 101 is fixed to the top end of the base 6. The inside of the frame member 101 is fixedly connected with a sealing component for separating the inside of the frame member 101 into two inner and outer chambers. The two inner and outer chambers in the frame member 101 communicate with each other through a through hole 104 opened on the sealing component. A hole sealing component 4 for sealing the through hole 104 is installed inside the sealing component;

[0043] The top end of the base 6 is provided with a moving device 2. The moving end of the moving device 2 is provided with a centrifugal component 3 for centrifugal spraying of ammonium nitrate mixed liquid. A combustion component 5 is installed in the outer chamber of the frame member 101;

[0044] The centrifugal assembly 3 includes a power device for cooperating with the inside of the sealing assembly to achieve position limitation. The power device is installed at the mobile end of the mobile device 2. The output end of the power device is fixedly connected to a fixing frame 305. The outer wall of the fixing frame 305 is fixedly connected to a second limiting ring 313. A second limiting groove adapted to the outer wall of the second limiting ring 313 is provided inside the sealing assembly. A centrifugal lifting device is installed inside the fixing frame 305. A spraying device is installed inside the fixing frame 305 through a limiting device. The mobile end of the centrifugal lifting device is fixedly connected to a sealing cover 310 for blocking the spraying of the spraying device. The top end of the fixing frame 305 is fixedly connected to a contact tooth ring 306 for contacting the hole-sealing assembly 4 and releasing the sealing of the through hole 104 by the hole-sealing assembly 4 by applying a moving force to the hole-sealing assembly 4.

[0045] Furthermore, the power device includes a first motor 301. The first motor 301 is fixedly installed at the mobile end of the mobile device 2. The output end of the first motor 301 is fixedly connected to a transmission gear 302 for controlling the operation of the air flow device 8. The output end of the transmission gear 302 is fixedly connected to a transmission 303 for transmission. The output end of the transmission gear 302 is fixed to the input end of the transmission 303. The outer wall of the transmission 303 is fixedly connected to a first limiting ring 304. The output end of the transmission 303 is fixed to the bottom end of the fixing frame 305.

[0046] The sealing assembly includes a first cylinder 102. The first cylinder 102 is fixed inside the frame member 101. The bottom end of the first cylinder 102 is rotatably connected to a second cylinder 103. A through hole 104 for the passage of the atomized liquid is provided on the outer wall of the second cylinder 103. The bottom end of the second cylinder 103 is rotatably connected to a third cylinder 105. The bottom end of the third cylinder 105 is rotatably connected to an internal gear ring 106. The bottom end of the internal gear ring 106 is rotatably connected to the bottom end inside the frame member 101. A first limiting groove adapted to the outer wall of the first limiting ring 304 is provided inside the third cylinder 105. A second limiting groove adapted to the outer wall of the second limiting ring 313 is provided inside the second cylinder 103.

[0047] Furthermore, the centrifugal lifting device includes a slider 307. The bottom end of the slider 307 is slidably connected to the bottom end inside the fixing frame 305. A pressure rod 308 is slidably connected inside the fixing frame 305. A second spring shock absorber 309 is fixedly connected between the pressure rod 308 and the fixing frame 305. The top end of the pressure rod 308 is fixed to the bottom end of the sealing cover 310.

[0048] An air flow device 8 is installed in the outer chamber of the frame member 101. The sealing hole assembly 4 includes a fourth spring shock absorber 401. The bottom end of the fourth spring shock absorber 401 is fixed to the inside of the first cylinder 102. A fixing ring 402 is fixedly connected to the telescopic end of the first cylinder 102. A sealing cylinder 403 is rotatably connected to the bottom end of the fixing ring 402. The outer wall of the sealing cylinder 403 is slidably connected to the inner wall of the second cylinder 103. A contact sealing bottom ring 404 adapted to the top tooth shape of the contact tooth ring 306 is fixedly connected to the bottom end of the sealing cylinder 403.

[0049] Furthermore, the spraying device includes a moving tank 311 installed inside the fixing frame 305. A piston 312 is slidably connected inside the moving tank 311. Spraying holes for spraying are provided on the outer wall of the moving tank 311.

[0050] Furthermore, the air flow device 8 includes wind power blades 801. The inner wall of the wind power blades 801 is fixed to the outer wall of the internal gear ring 106. An air outlet member 802 is fixedly connected inside the frame member 101. An annular air member 803 is fixedly connected inside the air outlet member 802. A wind guiding member 804 is fixedly connected inside the annular air member 803. The inside of the wind guiding member 804 is rotatably connected to the outer wall of the second cylinder 103 and is fixed to the outer wall of the third cylinder 105.

[0051] Furthermore, a push rod device 7 for pushing the piston 312 to move is fixedly connected inside the first cylinder 102. The push rod device 7 includes a first telescopic member 701 fixedly installed inside the first cylinder 102. The telescopic end of the first telescopic member 701 is rotatably connected to a contact cover 702.

[0052] Furthermore, the moving device 2 includes a rotating frame 201. The bottom end of the rotating frame 201 is rotatably connected to the top end of the base 6. A moving frame 202 is slidably connected inside the rotating frame 201. The outer wall of the first motor 301 is fixed to the inside of the moving frame 202. A second telescopic member 203 for controlling the movement of the moving frame 202 is fixedly connected between the rotating frame 201 and the moving frame 202.

[0053] Furthermore, the combustion assembly 5 includes a primary combustion device installed inside the frame member 101 and a secondary combustion device installed at the gas outlet end of the primary combustion device;

[0054] The secondary combustion device includes a cylindrical member 503. The gas inlet end of the cylindrical member 503 is fixed to the gas outlet end of the heating cylinder 501. A heating ring 504 is fixedly connected inside the cylindrical member 503. A guiding thread member 505 for guiding the gas is fixedly connected between the outer wall of the heating ring 504 and the inner wall of the cylindrical member 503. An oxygen jet device 506 is fixedly connected inside the cylindrical member 503.

[0055] Furthermore, the primary combustion device includes a heating cylinder 501, which is fixedly installed inside the frame member 101. A third telescopic member 502 is fixedly connected inside the frame member 101. The telescopic end of the third telescopic member 502 is fixedly connected with a sealing ring 507, and a sealing member 508 is fixedly connected between the outer wall of the sealing ring 507 and the inner wall of the frame member 101.

[0056] The method for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method uses the above-mentioned device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method. Furthermore, the detection method includes:

[0057] Step 1: Take an ammonium nitrate sample with a mass of M, and obtain an acidic solution with a mass of N based on the mass M through an excess calculation method.

[0058] Step 2: Mix and acidify the acidic solution with a mass of N and the ammonium nitrate sample with a mass of M to obtain an ammonium nitrate mixed liquid. Remove the carbon dioxide generated by inorganic substances, concentrate the ammonium nitrate mixed liquid to obtain a concentrated ammonium nitrate mixed liquid, and weigh the concentrated ammonium nitrate mixed liquid to obtain a concentrated ammonium nitrate mixed liquid with a mass of Z.

[0059] Step 3: Divide the concentrated ammonium nitrate mixed liquid into at least three samples. Inject one sample into the moving tank, weigh the moving tank to obtain a mass A1, place the moving tank in the fixed rack 305, and move the moving tank to the inside of the frame member 101 through the moving device 2.

[0060] Step 4: Start the device and detect the concentration of carbon dioxide through a non-dispersive infrared detector to obtain the concentration value Q of carbon dioxide.

[0061] Step 5: After completing the detection of carbon dioxide, remove the moving tank from the fixed rack 305 and weigh the centrifuged moving tank to obtain a mass A2.

[0062] Step 6: Calculate the organic carbon content in ammonium nitrate through a content calculation method.

[0063] Step 7: Repeat the operations for each sample in the order of Step 3, Step 4, Step 5, and Step 6, and process the obtained organic carbon content through an averaging method to obtain the final organic carbon content.

[0064] Operating method of the device: Place the moving tank 311 filled with concentrated ammonium nitrate mixed liquid on the fixing frame 305, and then fix the position between the fixing frame 305 and the moving tank 311 through the limiting device. Move the moving tank 311 and the fixing frame 305 into the inner cavity of the frame member 101 through the moving device 2. The moving tank 311 and the fixing frame 305 are moved into the inner area of the cylinder. The outer wall tooth shape of the transmission gear 302 meshes with the inner tooth shape of the internal gear ring 106. The first limiting ring 304 on the outer wall of the transmission 303 contacts the first limiting groove inside the third cylinder 105. The second limiting ring on the outer wall of the fixing frame 305 contacts the second limiting groove inside the second cylinder 103. At the same time, the contact tooth ring 306 at the top of the fixing frame 305 contacts the bottom of the hole-sealing assembly 4. As the fixing frame 305 and the contact tooth ring 306 move, the hole-sealing assembly 4 is contacted to seal the through hole 104 until the position of the spray hole is aligned with the position of the through hole 104. The output end of the first motor 301 rotates. Through the transmission of the transmission gear 302 and the internal gear ring 106, the wind turbine blade 801 rotates. Combined with the bottom air inlet pipe of the frame member 101, an upward wind force is formed in the outer cavity of the frame member 101. Due to the contact between the first limiting ring 304 on the outer wall of the transmission 303 and the first limiting groove inside the third cylinder 105, when the input end of the transmission 303 rotates, the rotational force acts on the transmission 303, but it is restricted by the first limiting groove, avoiding the influence of the overall rotation of the transmission 303 due to the acting force. Through the transmission of the transmission 303, the rotational speeds of the fixing frame 305 and the wind turbine blade 801 are different. The centrifugal lifting device inside the fixing frame 305 is affected by the centrifugal force, causing the sealing ring 507 to move, and then enabling the spray hole on the moving tank 311 to spray. Since the second cylinder 103 and the first cylinder 102 are rotatably connected, and there are corresponding second limiting rings 313 and second limiting grooves between the second cylinder 103 and the fixing frame 305, when the fixing frame 305 rotates, the second cylinder 103 rotates through the transmission of the second limiting ring 313 and the second limiting groove. Therefore, the positions of the spray hole and the through hole 104 will always be aligned. Combined with the thrust of the push rod device 7 on the piston 312, the atomization of the concentrated ammonium nitrate mixed solution is ensured. The atomized mixed solution moves to the outer cavity through the through hole 104 and is combined with the air flow generated in the outer cavity and moves to the area where the first combustion device is located. The first combustion device preliminarily heats the concentrated ammonium nitrate mixed solution and causes the ammonium nitrate to decompose, and then enters the second combustion device. Through the high temperature and sample addition in the second combustion device, the carbon in the organic matter is converted into carbon dioxide, and finally is collected by the collection device located at the second combustion device. By processing the gas in the collection device and reducing the content of other gases, the concentration of carbon dioxide is increased. Finally, the gas in the collection device is moved to the non-dispersive infrared detector.Realize the detection of carbon dioxide concentration. Through the combination of centrifugal spraying and multi-stage combustion technology, rapid atomization, drying of ammonium nitrate mixed liquid and efficient conversion of organic carbon are achieved. The centrifugal component 3 automatically releases the seal at the set rotation speed, and with the pressure assistance of the push rod device 7, the ammonium nitrate liquid can pass through the spray holes. This method can ensure the atomized effect of the ammonium nitrate liquid. Combined with the multi-stage combustion device, it can ensure the full conversion of organic matter into carbon dioxide and shorten the detection cycle.

[0065] The detection method includes that after spraying, there may be residual liquid inside the moving tank 311. Therefore, after centrifugal spraying, it is necessary to weigh the moving tank 311 and the residual liquid inside it. Before and after the moving tank 311 undergoes centrifugation, the moving tank 311 is weighed respectively to obtain the mass difference of the moving tank 311 before and after, so as to obtain the usage amount of the concentrated ammonium nitrate mixed solution during centrifugation. According to K(A1 - A2)=Z, the specific value of the multiple K is obtained. Considering that there will be residual liquid remaining inside the moving tank 311, ammonium nitrate mixed liquid with a mass of Y is obtained from the ammonium nitrate mixed liquid and injected into the moving tank 311, and the moving tank 311 is weighed to obtain the mass A1. After centrifugation and detection are completed, the centrifuged moving tank 311 is weighed to obtain the mass A2. A1 - A2 is the ammonium nitrate mixed liquid used in this centrifugation. The content calculation method includes calculating the content of carbon dioxide obtained in this detection through the carbon dioxide concentration value Q. The content of carbon dioxide is multiplied by K to obtain the organic carbon content in ammonium nitrate. To avoid errors in single detection, multiple centrifugations and detections are carried out, and then the average value is obtained through the average value method. The average value method includes mathematical methods such as taking the average value and calculating the minimum variance value. The final organic carbon content is obtained through the average value method to achieve the rapid detection of the organic carbon content in ammonium nitrate. The excess calculation method is to ensure that all the inorganic carbon in the ammonium nitrate sample can be converted into carbon dioxide. Therefore, the acidic solution needs to be in excess to eliminate the inorganic carbon. For example, a small amount of ammonium nitrate sample can be directly burned to obtain carbon dioxide, and this carbon dioxide is regarded as all generated by inorganic carbon, and the corresponding mass of the acidic solution is calculated and obtained accordingly to achieve the excess calculation. The detection method realizes the rapid atomization, drying of ammonium nitrate mixed liquid and efficient conversion of organic carbon through optimizing the process design and combining centrifugal spraying and multi-stage combustion technology. This process significantly shortens the detection cycle. At the same time, during the operation, by repeatedly injecting ammonium nitrate mixed liquid into the moving tank 311, repeatable detection is achieved. This repeatability not only improves the flexibility of detection, but also ensures the accuracy of the obtained data by repeatedly obtaining detection data.

[0066] The telescopic member includes a device that can achieve the telescoping of its telescopic end. There is prior art where, due to the existence of high-temperature situations, hydraulic and pneumatic methods are not used for the telescoping device. The transmission 303 preferably uses a transmission 303 with the output shaft and the input shaft on the same axis. By controlling the transmission 303, the rotational speed of the fixed frame 305 is made inconsistent with the rotational speed of the wind turbine blade 801. Due to the rotation of the fixed frame 305, when it is transmitted to the piston 312, the piston 312 will also rotate. Therefore, the telescopic end of the contact cover 702 and the first telescopic member 701 are set to be rotatably connected, thereby reducing the adverse effect of the friction on the contact cover 702 when the piston 312 rotates.

[0067] Since the centrifugal assembly 3 needs to be moved to the corresponding cylinder, when designing the tops of the first limiting ring, the second limiting ring 313, and the transmission gear 302, slopes need to be set. At the same time, slopes also need to be set at the bottoms of the first limiting groove, the second limiting groove, and the internal gear ring 106. Through the setting of the slopes, the position of the fixed frame 305 inside the second cylinder 103 is restricted, thereby ensuring the alignment of the spray holes and the through holes 104, and at the same time achieving effective limiting of the transmission 303 and effective meshing between the transmission gear 302 and the internal gear ring 106.

[0068] In the centrifugal assembly 3, only when the centrifugal assembly 3 reaches the set rotational speed will the ammonium nitrate mixed liquid be ejected. Due to the setting of the centrifugal lifting device, only when it reaches the set rotational speed will the sealing cover 310 release the sealing of the spray holes, so that the ammonium nitrate mixed liquid has sufficient initial velocity. The ammonium nitrate mixed liquid has sufficient initial velocity and passes through the spray holes, thereby achieving an atomization effect. And with the thrust of the push rod device 7, the ammonium nitrate mixed liquid passes through the spraying member under sufficient pressure. The atomized ammonium nitrate mixed liquid is sprayed into the inner cavity and is affected by the high-temperature gas flow, so that the atomized ammonium nitrate mixed liquid is dried and forms ammonium nitrate mixed powder. The mixed powder rises with the gas flow to the area where the primary combustion device is located. Affected by the high temperature of the primary combustion device, the ammonium nitrate decomposes. In order to ensure the heating effect in the chamber, a sealing ring 507 and a sealing member 508 are provided at the outlet end of the primary combustion device, so that it cannot move in the primary combustion device at this time, ensuring the heating of the inner part of the chamber. Then, the telescopic end of the third telescopic member 502 contracts, the sealing ring 507 moves, and the shape of the sealing member 508 changes, so that the mixture in the primary combustion device moves to the secondary combustion device. The oxygen jet device 506 in the secondary combustion device adds oxygen again, so as to ensure the full combustion of the organic carbon. The organic carbon is all converted into carbon dioxide. The temperature inside the secondary combustion device reaches at least 900 °C and is collected by the gas collection device located in the secondary combustion device. The gas collection device reduces the content of other gases while maintaining a high temperature.

[0069] The output end of the first motor 301 rotates. Through the transmission of the transmission gear 302 and the internal gear ring, the wind turbine blade 801 rotates to generate an air current. An air inlet pipe is installed at the bottom end of the frame member 101. Through this air inlet pipe, oxygen can continuously pass through. Combined with the rotation of the wind turbine blade 801, an upward air current is formed in the inner cavity of the frame member 101.

[0070] During centrifugation, the telescopic end of the first telescopic member 701 moves, the contact cover 702 moves and makes contact with the piston 312. The contact cover 702 exerts an actual force on the piston 312. This method not only sprays through centrifugation but also applies an additional pressure to ensure that when the liquid inside the centrifugation assembly 3 is under sufficient pressure, the centrifugation assembly 3 atomizes the liquid. When the ammonium nitrate mixed liquid is not injected into the moving tank 311, through the cooperation with the piston 312, the volume inside the moving tank 311 is zero at this time. After injecting the ammonium nitrate mixed liquid, the piston 312 moves under hydraulic pressure and the volume changes. This method can ensure that air does not enter the moving tank 311 when injecting the ammonium nitrate mixed liquid. The piston 312 inside the moving tank 311 is under the pressure of the ammonium nitrate mixed liquid and thus moves. Then, the moving tank 311 is placed inside the fixing frame 305, and the fixing frame 305 restricts the moving tank 311 through a restricting device. The restricting device includes a threaded rod. The threaded rod is threadedly connected inside the fixing frame 305. By rotating the threaded rod and making contact with the groove area inside the moving tank 311, the moving tank 311 is restricted, so that when the fixing frame 305 rotates, the moving tank 311 will also rotate synchronously.

[0071] The output end of the first motor 301 rotates, the transmission gear 302 rotates, and the tooth shape inside the internal gear ring meshes with the tooth shape on the outer wall of the transmission gear 302. Through the transmission of the transmission gear 302 and the internal gear ring, the wind turbine blade 801 rotates, thus forming an air current in the air current area. At the same time, a heating device is also installed at the air inlet pipe of the frame member 101. The oxygen added is preliminarily heated to ensure the drying of the ammonium nitrate mixed liquid. Combined with the oxygen and the wind turbine blade 801, a high-temperature air current is formed. The high-temperature air current can effectively dry the atomized ammonium nitrate mixed liquid. The atomized ammonium nitrate mixed liquid loses moisture and forms a powder. At the same time, affected by the air current, the powdered mixture rises for subsequent transfer to the combustion device.

[0072] The atomized ammonium nitrate mixed liquid is thrown out under the action of centrifugal force. Through the design of the air flow assembly, the high-temperature air flow dries the atomized ammonium nitrate mixed liquid. The design of the air outlet part 802 can prevent the ammonium nitrate mixed liquid from contacting the inner wall of the air outlet part 802 due to centrifugal force. By designing the air outlet part 802 into an open shape, an annular air part 803 is fixedly connected inside the air outlet part 802, and a wind guiding part 804 is fixedly connected inside the annular air part 803. The annular air part 803 is arranged between the air outlet part 802 and the wind guiding part 804, thus dividing the wind power blade 801 into two parts. The air flow inside the annular air part 803 can dry the atomized ammonium nitrate mixed liquid and make the powdered ammonium nitrate rise. And for the air flow outside the annular air part 803, due to the design of the annular air part 803 and the air outlet part 802, an air flow formed at the annular air part 803 serves as a protective air flow for the side wall of the air outlet part 802. Under this protective air flow, it can prevent the atomized ammonium nitrate mixed liquid from being sprayed onto the inner wall position of the air outlet part 802 and contacting the inner wall of the air outlet part 802, and avoid the atomized ammonium nitrate mixed liquid drying at the inner wall position of the air outlet part 802 and being easily attached to the inner wall position of the air outlet part 802.

[0073] The primary combustion device and the secondary combustion device divide the inside of the frame part 101 into a primary combustion area and a secondary combustion area. The primary combustion device mainly realizes the decomposition of ammonium nitrate and the heating of the mixture, and the secondary combustion device mainly realizes the conversion of organic carbon into carbon dioxide. The powdered ammonium nitrate rises and enters the primary combustion area. The powdered ammonium nitrate is burned in the primary combustion area, and the temperature inside the primary combustion area is 300°C - 400°C, so that ammonium nitrate decomposes. When ammonium nitrate decomposes, it combines with oxygen at the same time, so that ammonium nitrate can decompose into oxides at a certain temperature. The temperature inside the secondary combustion area is at least 900 degrees Celsius, so that organic carbon combines with oxygen to generate carbon dioxide.

[0074] The telescopic end of the third telescopic part 502 moves, the sealing ring 507 and the sealing part 508 move, the mixed gas enters the secondary combustion area, and the oxygen jet device 506 injects oxygen into the inside of the cylinder part 503. The heating ring 504 makes the temperature inside the cylinder part 503 reach at least 900°C. Under the action of the heating ring 504, the organic carbon in the mixed gas combines with oxygen, thus generating carbon dioxide. The air outlet end of the oxygen jet device 506 is installed at the air inlet position of the cylinder part 503. At the same time, with the annular design of the cylinder part 503 and the setting of the guiding thread part 505, the guiding thread part 505 makes the mixed gas move along the annular area. By controlling the flow rate of the air flow, it can prevent the organic carbon from being discharged outside the cylinder part 503 before it is converted into carbon dioxide.

[0075] A gas collection device is installed at the gas outlet end of the cylindrical part 503. The gas collection device can process the final gas. A non-dispersive infrared detector is installed at the gas outlet end of the gas collection device. Through the non-dispersive infrared detector, the carbon dioxide in the final gas can be detected to obtain the concentration of carbon dioxide.

[0076] The output end of the first motor 301 rotates. Through the transmission of the transmission 303, the entire fixed frame 305 and the parts installed on the fixed frame 305 rotate. During the rotation of the fixed frame 305, through the second limiting ring and the second limiting groove, the second cylinder 103 rotates synchronously. And because the sealing cylinder 403 and the second cylinder 103 are in sliding connection, based on the extrusion of the fixed frame 305 on the sealing cylinder 403, the position of the sealing cylinder 403 changes, but the sliding between the sealing cylinder 403 and the second cylinder 103 is still maintained, and the sealing cylinder 403 and the second cylinder 103 rotate synchronously. Since the fixed ring 402 and the sealing cylinder 403 are in rotational connection, the rotation of the sealing cylinder 403 will not affect the fourth spring shock absorber and damper 401 fixed inside the first cylinder 102. Thus, the fixed frame 305, the internal parts of the fixed frame 305, the second cylinder 103, the sealing cylinder 403, and the contact sealing bottom ring 404 rotate synchronously. The slider 307 rotates, so that the slider 307 has a tendency to move away from the rotation center line. At the same time, the pressure rod 308 exerts a force on the slider 307 through the second spring shock absorber and damper 309. Then, the tendency of the slider 307 to move away from the rotation center line acts on the pressure rod 308, making the pressure rod 308 have an upward tendency. As the rotation speed increases, the tendency of the slider 307 is transformed into movement, and then the pressure rod 308 rises. The second spring shock absorber and damper 309 is compressed, and the sealing cover 310 rises. The restriction of the sealing cover 310 on the spray holes is released. During the high-speed rotation of the moving tank 311, the first telescopic member 701 fixed inside the first cylinder 102 is activated. The telescopic end of the first telescopic member 701 moves, and the contact cover 702 contacts the piston 312 and makes the piston 312 move. Combining the high-speed rotation of the liquid inside the moving tank 311 and the extrusion of the piston 312 on the liquid inside the moving tank 311, the ammonium nitrate mixed liquid inside the moving tank 311 is sprayed out from the spray holes of the moving tank 311, and through the through hole 104, it moves to the outer chamber of the frame member 101. Along with the rising high-temperature gas flow, the atomized ammonium nitrate mixed liquid is dried, and the granular or powdered ammonium nitrate mixture moves to the primary combustion device. The primary combustion area is heated by the heating cylinder 501. Then, by opening the sealing ring 507, the mixture in the primary combustion area moves to the secondary combustion device, realizing the conversion of organic carbon into carbon dioxide, and finally realizing collection.

[0077] After completing the combustion treatment of the sample, the mobile device 2 separates the mobile tank 311 from the frame member 101. The telescopic end of the second telescopic member 203 contracts, and the rotating frame 201 rotates. The removed mobile tank 311 is weighed, and another sample is injected into the mobile tank 311. The combustion operation is repeated. During the separation of the fixed frame 305 from the frame member 101, the fixed frame 305 moves downward. Through the elastic force of the fourth spring shock absorber 401, the contact sealing bottom ring 404 and the contact tooth ring 306 maintain sealed contact, and through the sealing cylinder 403, the sealing of the through hole 104 is achieved, preventing external air from entering the outer chamber of the frame member 101 during non-use. The design of the contact tooth ring 306 and the contact sealing bottom ring 404 can ensure the sealing effect when the two are in contact. Through the collaborative design of the frame assembly 1, the sealing assembly, and the hole-sealing assembly 4, the cooperation between the second limiting ring and the second limiting groove and the contact between the contact tooth ring 306 and the contact sealing bottom ring 404. When the fixed frame 305 moves into the interior of the second cylinder 103, through the cooperation of the second limiting ring and the second limiting groove, the accurate alignment of the spray hole and the through hole 104 is achieved, avoiding leakage. The centrifugal lifting device dynamically controls the sealing cover 310 through centrifugal force to ensure the initial spray velocity and uniformity. At the same time, the contact between the contact tooth ring 306 and the contact sealing bottom ring 404, and when the fixed frame 305 moves into the interior of the second cylinder 103, it pushes the sealing cylinder 403 to move, causing the sealing cylinder 403 to release the sealing of the through hole 104, so as to facilitate the subsequent alignment of the spray hole and the through hole 104, ensuring the feasibility of the device, optimizing the combustion environment, and reducing liquid residue.

[0078] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended embodiments and their equivalents.

Claims

1. An apparatus for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method, comprising a base (6), characterized in that: The top end of the base (6) is fixedly connected with a frame assembly (1). The frame assembly (1) includes a frame member (101). The bottom end of the frame member (101) is fixed to the top end of the base (6). Inside the frame member (101), there is a sealing assembly fixedly connected for dividing the interior of the frame member (101) into two inner and outer chambers. The two inner and outer chambers in the frame member (101) communicate with each other through a through hole (104) opened in the sealing assembly. Inside the sealing assembly, there is a hole-sealing assembly (4) for sealing the through hole (104). A moving device (2) is installed at the top end of the base (6). The moving end of the moving device (2) is installed with a centrifugal assembly (3) for centrifugal spraying of ammonium nitrate mixed liquid. A combustion assembly (5) is installed in the outer chamber of the frame member (101). The centrifugal assembly (3) includes a power device for cooperating with the inside of the sealing assembly to achieve position limitation. The power device is installed at the moving end of the moving device (2). The output end of the power device is fixedly connected with a fixing frame (305). The outer wall of the fixing frame (305) is fixedly connected with a second limiting ring (313). Inside the sealing assembly, there is a second limiting groove adapted to the outer wall of the second limiting ring (313). Inside the fixing frame (305), there is a centrifugal lifting device. Inside the fixing frame (305), a spraying device is installed through a limiting device. The moving end of the centrifugal lifting device is fixedly connected with a sealing cover (310) for blocking the spraying of the spraying device. The top end of the fixing frame (305) is fixedly connected with a contact gear ring (306) for contacting the hole-sealing assembly (4) and releasing the sealing of the through hole (104) by the hole-sealing assembly (4) by applying a moving force to the hole-sealing assembly (4).

2. The device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method according to claim 1, characterized in that: The power device includes a first motor (301). The first motor (301) is fixedly installed at the moving end of the moving device (2). The output end of the first motor (301) is fixedly connected with a transmission gear (302) for controlling the operation of an air flow device (8). The output end of the transmission gear (302) is fixedly connected with a transmission (303) for transmission. The output end of the transmission gear (302) is fixed to the input end of the transmission (303). The outer wall of the transmission (303) is fixedly connected with a first limiting ring (304). The output end of the transmission (303) is fixed to the bottom end of the fixing frame (305). The sealing assembly includes a first cylinder (102) which is fixed to the inside of the frame member (101). The bottom end of the first cylinder (102) is rotatably connected to a second cylinder (103). Through holes (104) for the passage of atomized liquid are formed in the outer wall of the second cylinder (103). The bottom end of the second cylinder (103) is rotatably connected to a third cylinder (105). The bottom end of the third cylinder (105) is rotatably connected to an internal gear ring (106). The bottom end of the internal gear ring (106) is rotatably connected to the bottom end inside the frame member (101). A first limiting groove adapted to the outer wall of the first limiting ring (304) is formed inside the third cylinder (105), and a second limiting groove adapted to the outer wall of the second limiting ring (313) is formed inside the second cylinder (103).

3. The device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method according to claim 2, wherein: The centrifugal lifting device includes a slider (307) whose bottom end is slidably connected to the bottom end inside the fixed frame (305). A pressure rod (308) is slidably connected inside the fixed frame (305). A second spring shock absorber damper (309) is fixedly connected between the pressure rod (308) and the fixed frame (305). The top end of the pressure rod (308) is fixed to the bottom end of the sealing cover (310). An air flow device (8) is installed in the outer chamber of the frame member (101). The hole sealing assembly (4) includes a fourth spring shock absorber damper (401) whose bottom end is fixed to the inside of the first cylinder (102). The telescopic end of the first cylinder (102) is fixedly connected to a fixed ring (402). The bottom end of the fixed ring (402) is rotatably connected to a sealing cylinder (403). The outer wall of the sealing cylinder (403) is slidably connected to the inner wall of the second cylinder (103). The bottom end of the sealing cylinder (403) is fixedly connected to a contact sealing bottom ring (404) adapted to the top tooth shape of the contact gear ring (306).

4. The device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method according to claim 1, wherein: The spraying device includes a moving tank (311) installed inside the fixed frame (305). A piston (312) is slidably connected inside the moving tank (311). Spraying holes for spraying are formed in the outer wall of the moving tank (311).

5. The device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method according to claim 3, wherein: The air flow device (8) includes wind power blades (801) whose inner wall is fixed to the outer wall of the internal gear ring (106). An air outlet member (802) is fixedly connected inside the frame member (101). An annular air member (803) is fixedly connected inside the air outlet member (802). A wind guiding member (804) is fixedly connected inside the annular air member (803). The inside of the wind guiding member (804) is rotatably connected to the outer wall of the second cylinder (103), and the inside of the wind guiding member (804) is fixed to the outer wall of the third cylinder (105).

6. The device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method according to claim 2, wherein: Inside the first cylinder (102), there is a push rod device (7) fixedly connected for pushing the piston (312) to move. The push rod device (7) includes a first telescopic member (701) fixedly installed inside the first cylinder (102). The telescopic end of the first telescopic member (701) is rotatably connected to a contact cover (702).

7. The device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method according to claim 1, characterized in that: The moving device (2) includes a rotating frame (201). The bottom end of the rotating frame (201) is rotatably connected to the top end of the base (6). Inside the rotating frame (201), there is a moving frame (202) slidably connected. The outer wall of the first motor (301) is fixed to the inside of the moving frame (202). Between the rotating frame (201) and the moving frame (202), there is a second telescopic member (203) fixedly connected for controlling the movement of the moving frame (202).

8. The device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method according to claim 1, wherein: The combustion assembly (5) includes a primary combustion device installed inside the frame member (101) and a secondary combustion device installed at the gas outlet end of the primary combustion device; The secondary combustion device includes a cylindrical member (503). The inlet end of the cylindrical member (503) is fixed to the outlet end of the heating cylinder (501). Inside the cylindrical member (503), there is a heating ring (504) fixedly connected. Between the outer wall of the heating ring (504) and the inner wall of the cylindrical member (503), there is a guiding threaded member (505) for guiding the gas. Inside the cylindrical member (503), there is an oxygen jetting device (506) fixedly connected.

9. The device for rapidly detecting the organic carbon content in ammonium nitrate based on the combustion method according to claim 8, wherein: The primary combustion device includes a heating cylinder (501) fixedly installed inside the frame member (101). Inside the frame member (101), there is a third telescopic member (502) fixedly connected. The telescopic end of the third telescopic member (502) is fixedly connected to a sealing ring (507). Between the outer wall of the sealing ring (507) and the inner wall of the frame member (101), there is a sealing member (508) fixedly connected.

10. A method for rapidly detecting the organic carbon content in ammonium nitrate by combustion method, which uses the device for rapidly detecting the organic carbon content in ammonium nitrate by combustion method according to any one of claims 1-9, is characterized in that: The detection method includes: Step 1: Take an ammonium nitrate sample with a mass of M. Based on the mass M and through an excess calculation method, obtain an acidic solution with a mass of N. Step 2: Mix and acidify the acidic solution with a mass of N and the ammonium nitrate sample with a mass of M to obtain an ammonium nitrate mixed liquid. Remove the carbon dioxide generated by inorganic substances, concentrate the ammonium nitrate mixed liquid to obtain a concentrated ammonium nitrate mixed liquid, and weigh the concentrated ammonium nitrate mixed liquid to obtain a concentrated ammonium nitrate mixed liquid with a mass of Z. Step 3: Divide the concentrated ammonium nitrate mixed liquid into at least three samples. Inject one sample into a moving tank, weigh the moving tank to obtain a mass A1. Place the moving tank in a fixed rack (305) and move the moving tank to the inside of the frame member (101) through the moving device (2). Step 4: Start the device and detect the concentration of carbon dioxide through a non-dispersive infrared detector to obtain a carbon dioxide concentration value Q. Step 5: After completing the detection of carbon dioxide, take the moving tank out of the fixed rack (305) and weigh the centrifuged moving tank to obtain a mass A2. Step 6: Calculate the organic carbon content in ammonium nitrate through the content calculation method; Step 7: Repeat the operations for each sample in the order of Step 3, Step 4, Step 5, and Step 6, and process the obtained organic carbon content by the method of taking the mean to obtain the final organic carbon content.

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