Thermal desorption equipment for solid objects

Abstract

The utility model discloses thermal desorption equipment for solid objects, which relates to the technical field of thermal desorption and comprises a pyrolysis box, a box door is hinged to the front surface of the pyrolysis box, an observation window is arranged on the surface of the box door, a crushing box is mounted on the upper surface of the pyrolysis box, a blanking hopper is mounted on the upper surface of the crushing box, and a heating block is mounted on the inner bottom surface of the pyrolysis box. A wireless communication module is installed on the side face of the gram weight sensor, a controller is installed on the side face of the pyrolysis box, a recording analyzer is installed on the side face of the pyrolysis box, the wireless communication module is in wireless communication with the recording analyzer, and the other end of the guide pipe penetrates through the back face of the pyrolysis box. According to the multi-group thermal desorption device disclosed by the utility model, a plurality of groups of thermal desorption devices are arranged, so that the effect of more sufficiently analyzing solid objects is achieved, and the purpose of improving the practicability of the desorption equipment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal analysis, in particular to a thermal analysis device for solid loads. Background Art

[0002] Thermal analysis technology is a two-in-one technology that combines sampling and concentration. The sample is then transferred from the sampling tube for detection. Thermal analysis uses heating to release organic compounds from the sampling tube instead of solvent elution. This allows thermal analysis technology to avoid long solvent elution times and there is no solvent peak in the chromatogram. In the thermal analysis of rhodium-containing solid supports, because the rhodium-containing solid support has a high melting point, its thermal analysis takes a long time, resulting in high costs. For this reason, a thermal analysis device for solid supports is proposed.

[0003] Publication of patent specification for utility model patent in China CN220270967U A thermal analysis device for solids is disclosed in the utility model. Although the utility model can use the metal crusher to crush the rhodium-containing solids by fixing a base at the bottom of the metal crusher to reduce the volume of the rhodium-containing solids, and use a feed pipe to transport the crushed rhodium-containing solids to the inside of a thermal decomposition box, and then use a motor to drive a rotating rod, and then use the rod sleeve in conjunction with a stirring paddle to rotate and stir the crushed rhodium-containing solids in a thermal decomposition tank during thermal decomposition, so that the solids can be thermally decomposed evenly, the efficiency of thermal decomposition is improved, and the thermal decomposition time is reduced, but only one type of rhodium-containing solid can be thermally analyzed each time. Since the thermal analysis time process is long and the data obtained are relatively single, it is difficult to provide more sufficient data for the analysis and research of the solids, and there is a disadvantage that it is not convenient to analyze and record the thermal decomposition, oxidation, weight loss and other processes of solids with different contents at different temperatures. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a thermal analysis device for solid loads, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a thermal analysis device for solid loads, comprising a pyrolysis box, a box door is hinged on the front of the pyrolysis box, an observation window is opened on the surface of the box door, a crushing box is installed on the upper surface of the pyrolysis box, a lower hopper is installed on the upper surface of the crushing box, the lower part of the crushing box passes through the top surface of the pyrolysis box, a feeding pipe is installed on the lower surface of the crushing box, a heating block is installed on the inner bottom surface of the pyrolysis box, a card seat is installed on the upper surface of the heating block, a heat conduction box is placed on the surface of the card seat, a heat insulation board is installed on the inner bottom surface of the heat conduction box, a gram weight sensor is installed on the inner side surface of the heat insulation board, a wireless communication module is installed on the side of the gram weight sensor, a controller is installed on the side of the pyrolysis box, a recording analyzer is installed on the side of the pyrolysis box, the wireless communication module communicates wirelessly with the recording analyzer, one end of the feeding pipe away from the crushing box is arranged in the heat conduction box, a conduit is connected to the upper surface of the heat conduction box, the other end of the conduit passes through the back of the pyrolysis box, and the end that passes through is connected to a sampling bottle, and a second solenoid valve is installed on the surface of the conduit.

[0008] Optionally, a motor is installed on the outer surface of the crushing box, a rotating shaft is fixedly connected to the output end of the motor, a rolling roller is fixedly connected to the surface of the rotating shaft, and bearings are provided at the connection between the two ends of the rotating shaft and the crushing box.

[0009] Optionally, the number of the crushing boxes and the lower hopper is three, and they are evenly distributed. Each crushing box is equipped with two motors, rotating shafts and rolling rollers, and they are symmetrically distributed.

[0010] Optionally, a first sealing connector is provided at the connection between the feed pipe and the heat conduction box, a second sealing connector is provided at the connection between the conduit and the heat conduction box, and the second solenoid valve is installed on the inner surface of the pyrolysis box.

[0011] Optionally, the number of the holder, the heat conduction box, the first sealing connector, the feed pipe, the first solenoid valve and the gram weight sensor are three and are equidistantly distributed.

[0012] Optionally, two heat insulation boards are installed on the inner bottom surface of each heat conduction box, and the weight sensor and the wireless communication module are installed between the two heat insulation boards.

[0013] (III) Beneficial effects

[0014] The utility model provides a thermal analysis device for solid loads, which has the following beneficial effects:

[0015] 1. The thermal analysis equipment for solids has the effect of providing more analysis data by setting multiple groups of thermal analysis devices. When in use, solids with different rhodium contents are put into three lower hoppers, and the output end of the motor is controlled to rotate by the controller. The two motor output ends on each crushing box rotate inward synchronously, and the motor drives the rotating shaft to rotate, and the rotating shaft drives the rolling roller to rotate. The solids in the lower hopper fall into the middle of the two rolling rollers, and the rolling rollers crush the solids. The crushed solids fall into the heat conduction box through the feeding pipe. During the heating process, the heat conduction box above the card seat is heated by the heating block, and the heat is transferred to the solids above the heat insulation board. During the pyrolysis of solids, the first solenoid valve is closed and the second solenoid valve is opened, so that the gas generated by the pyrolysis enters the sampling bottle through the catheter, which plays a role in collecting gas. The collected gas can be analyzed by a gas chromatograph. At the same time, during the pyrolysis process, the weight of the solid is monitored by a gram weight sensor, and the weight change value is transmitted to the recording analyzer through a wireless communication module. The recording analyzer records the temperature and weight in the heat transfer box at the same time. Through the setting of the three heat transfer boxes through the observation window, three sets of data are finally obtained. The staff compared and analyzed the three sets of data, which played a role in more fully analyzing the solid and achieved the purpose of improving the practicality of the analytical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front-view three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the crushing box of the utility model in a top view;

[0019] Figure 4 It is a schematic diagram of the structure of the side cross-section of the utility model;

[0020] Figure 5 For this utility model Figure 4 Schematic diagram of the structure at A in the middle.

[0021] In the figure: 1. pyrolysis box; 2. box door; 3. observation window; 4. controller; 5. record analyzer; 6. crushing box; 7. lower hopper; 8. motor; 9. rotating shaft; 10. crushing roller; 12. feed pipe; 13. first solenoid valve; 14. first sealing connection; 15. heat conduction box; 16. heating block; 17. card seat; 18. gram weight sensor; 181. wireless communication module; 19. heat insulation board; 20. second sealing connection; 21. catheter; 22. second solenoid valve; 23. sampling bottle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Example 1

[0024] See also Figures 1 to 5 The utility model provides a technical solution: a thermal decomposition device for solid loads, including a thermal decomposition box 1, a box door 2 is hinged on the front of the thermal decomposition box 1, an observation window 3 is opened on the surface of the box door 2, a crushing box 6 is installed on the upper surface of the thermal decomposition box 1, a motor 8 is installed on the outer surface of the crushing box 6, a rotating shaft 9 is fixedly connected to the output end of the motor 8, a rolling roller 10 is fixedly connected to the surface of the rotating shaft 9, bearings are arranged at the connection between the two ends of the rotating shaft 9 and the crushing box 6, the number of the crushing box 6 and the lower hopper 7 are both three, and they are equidistantly distributed, and each crushing box 6 has a plurality of crushing boxes 6 and a plurality of crushing boxes 6. Two motors 8, rotating shafts 9 and rolling rollers 10 are installed on the box 6, and are symmetrically distributed. A lower hopper 7 is installed on the upper surface of the crushing box 6. The lower part of the crushing box 6 penetrates the top surface of the pyrolysis box 1. A feeding pipe 12 is installed on the lower surface of the crushing box 6. A heating block 16 is installed on the inner bottom surface of the pyrolysis box 1. A card seat 17 is installed on the upper surface of the heating block 16. A heat conduction box 15 is placed on the surface of the card seat 17. A heat insulation board 19 is installed on the inner bottom surface of the heat conduction box 15. A gram weight sensor 18 is installed on the inner side of the heat insulation board 19. The gram weight sensor A wireless communication module 181 is installed on the side of the pyrolysis box 1, a controller 4 is installed on the side of the pyrolysis box 1, a recording analyzer 5 is installed on the side of the pyrolysis box 1, the wireless communication module 181 communicates wirelessly with the recording analyzer 5, the end of the feed pipe 12 away from the crushing box 6 is arranged in the heat conduction box 15, the upper surface of the heat conduction box 15 is connected with a conduit 21, the other end of the conduit 21 passes through the back of the pyrolysis box 1, and the end passing through is connected with a sampling bottle 23, the surface of the conduit 21 is installed with a second solenoid valve 22, the feed pipe 12 and the heat conduction box 1 5 is provided at the connection of the first sealing connector 14, the connection of the conduit 21 and the heat conducting box 15 is provided with a second sealing connector 20, the second solenoid valve 22 is installed on the inner surface of the pyrolysis box 1, the number of the holder 17, the heat conducting box 15, the first sealing connector 14, the feed pipe 12, the first solenoid valve 13 and the gram weight sensor 18 are three and are equidistantly distributed, two heat insulation boards 19 are installed on the inner bottom surface of each heat conducting box 15, and the gram weight sensor 18 and the wireless communication module 181 are installed in the middle of the two heat insulation boards 19.

[0025] In order to improve the practicality of the analytical equipment, when in use, solids with different rhodium contents are placed in three lower hoppers 7, and the output end of the motor 8 is controlled to rotate by the controller 4. The two motor 8 output ends on each crushing box 6 rotate inward synchronously, and the motor 8 drives the rotating shaft 9 to rotate, and the rotating shaft 9 drives the rolling roller 10 to rotate. The solids in the lower hopper 7 fall into the middle of the two rolling rollers 10, and the rolling rollers 10 crush the solids. The crushed solids fall into the heat conduction box 15 through the feed pipe 12. During the heating process, the heat conduction box 15 above the card seat 17 is heated by the heating block 16. The heat is transferred to pyrolyze the solids above the heat insulation board 19. During the pyrolysis process, the first The electromagnetic valve 13 opens the second electromagnetic valve 22, so that the gas generated by the pyrolysis enters the sampling bottle 23 through the conduit 21, which plays the role of collecting the gas. The collected gas can be analyzed by a gas chromatograph. At the same time, during the pyrolysis process, the weight of the solid is monitored by the gram weight sensor 18, and the weight change value is transmitted to the recording analyzer 5 through the wireless communication module 181. The recording analyzer 5 records the temperature and weight in the thermal box 15 at the same time. Through the setting of the three thermal boxes 15 through the observation window 3, three groups of data are finally obtained. The staff compares and analyzes the three groups of data, which plays a role in more fully analyzing the solid and achieves the purpose of improving the practicality of the analytical equipment.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A thermal decomposition device for solid materials, comprising a thermal decomposition box (1), characterized in that: The front of the pyrolysis box (1) is hinged with a box door (2), and an observation window (3) is provided on the surface of the box door (2). A crushing box (6) is installed on the upper surface of the pyrolysis box (1), and a lower hopper (7) is installed on the upper surface of the crushing box (6). The lower part of the crushing box (6) passes through the top surface of the pyrolysis box (1), and a feeding pipe (12) is installed on the lower surface of the crushing box (6). A heating block (16) is installed on the inner bottom surface of the pyrolysis box (1), and a holder (17) is installed on the upper surface of the heating block (16). A heat conduction box (15) is placed on the surface of the holder (17), and a heat insulation board (19) is installed on the inner bottom surface of the heat conduction box (15). The inner side surface of the heat insulation board (19) is provided with a heat conduction box (15). A gram weight sensor (18) is installed, a wireless communication module (181) is installed on the side of the gram weight sensor (18), a controller (4) is installed on the side of the pyrolysis box (1), a recording analyzer (5) is installed on the side of the pyrolysis box (1), the wireless communication module (181) communicates wirelessly with the recording analyzer (5), one end of the feed pipe (12) away from the crushing box (6) is arranged in the heat conduction box (15), the upper surface of the heat conduction box (15) is connected to a conduit (21), the other end of the conduit (21) passes through the back of the pyrolysis box (1), and the end that passes through is connected to a sampling bottle (23), and a second solenoid valve (22) is installed on the surface of the conduit (21).

2. The thermal desorption device for solid support according to claim 1, characterized in that: A motor (8) is mounted on the outer surface of the crushing box (6); a rotating shaft (9) is fixedly connected to the output end of the motor (8); a rolling roller (10) is fixedly connected to the surface of the rotating shaft (9); and bearings are provided at the connection points between the two ends of the rotating shaft (9) and the crushing box (6).

3. The thermal desorption device for solid support according to claim 2, characterized in that: The number of the crushing boxes (6) and the lower hopper (7) is three and they are evenly spaced. Each crushing box (6) is equipped with two motors (8), a rotating shaft (9) and a rolling roller (10) and they are symmetrically distributed.

4. The thermal desorption device for solid support according to claim 1, characterized in that: A first sealing connection piece (14) is provided at the connection between the feed pipe (12) and the heat conduction box (15), a second sealing connection piece (20) is provided at the connection between the conduit (21) and the heat conduction box (15), and a second solenoid valve (22) is installed on the inner surface of the pyrolysis box (1).

5. The thermal desorption device for solid support according to claim 1, characterized in that: The number of the holder (17), the heat conduction box (15), the first sealing connector (14), the feed pipe (12), the first solenoid valve (13) and the weight sensor (18) are all three and are equidistantly distributed.

6. The thermal desorption device for solid support according to claim 1, characterized in that: Two heat insulation boards (19) are installed on the inner bottom surface of each heat conduction box (15), and the weight sensor (18) and the wireless communication module (181) are installed between the two heat insulation boards (19).

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