Solid waste particle carbon dioxide adsorption test experimental device

Abstract

The utility model discloses a solid waste particle carbon dioxide adsorption test experimental device which comprises an adsorption pipe I, an adsorption pipe II arranged above the adsorption pipe I, an internal thread sleeve fixed at the bottom of the adsorption pipe II, an external thread sleeve fixed at the top of the adsorption pipe I, the internal thread sleeve and the external thread sleeve are in threaded connection, and a storage barrel is arranged at the top of the adsorption pipe I. When solid waste particles in the storage barrel fall into the first adsorption pipe from the falling hole and the through hole, the solid waste particles fall freely from top to bottom in the first adsorption pipe, and mixed gas containing carbon dioxide is conveyed from top to top in the first adsorption pipe, so that gas flow of the mixed gas containing carbon dioxide and the solid waste particles form countercurrent contact, and the solid waste particles are separated from the first adsorption pipe. The interaction time of the solid waste particles and the mixed gas containing the carbon dioxide is prolonged, and the effective contact area of the solid waste particles to be tested and the mixed gas containing the carbon dioxide in unit time is greatly increased, so that the adsorption potential of the material is fully exerted.

Description

An experimental apparatus for testing carbon dioxide adsorption in solid waste particles Technical Field

[0001] This utility model relates to the field of solid waste resource utilization and gas adsorption testing technology, and in particular to an experimental device for testing carbon dioxide adsorption of solid waste particles. Background Technology

[0002] Under the "dual carbon" goal, the integration of solid waste resource utilization with carbon capture and storage (CCS) technologies has become a research hotspot. Industrial solid wastes such as municipal solid waste incineration fly ash, coal gangue, fly ash, and slag, after modification, possess a certain CO2 adsorption capacity and can be used as low-cost adsorption materials in industrial exhaust gas treatment and greenhouse gas storage, achieving both solid waste reduction and carbon emission reduction. However, testing the CO2 adsorption performance of solid waste particles is a prerequisite for their industrial application and requires measurement using specialized experimental equipment.

[0003] Figure 1 shows an existing experimental setup for testing carbon dioxide adsorption of solid waste particles. The setup includes a carbon dioxide cylinder 101 and a carrier gas cylinder 102. Nitrogen is typically used as the inert carrier gas in the carrier gas cylinder 102. Both the exhaust ports of the carbon dioxide cylinder 101 and the carrier gas cylinder 102 are connected to a gas delivery pipe 103. A pressure reducing valve 104 and a mass flow controller 105 are installed on the gas delivery pipe 103. One end of both gas delivery pipes 103 is connected to a gas mixer 106. The mixed gas is then transported to the adsorption tube 108 via a second gas delivery pipe 107 for adsorption. (In the initial setup of the experimental setup, samples of the solid waste particles to be tested are loaded into the adsorption tube 108. A gas distribution network is installed inside the adsorption tube 108.) After the solid waste particles to be tested are loaded into the adsorption tube 108, they fall onto the gas distribution net. The mixed gas is then input from the bottom of the adsorption tube 108, allowing the mixed gas to pass through the gas distribution net and then through the solid waste particles to be tested. The adsorbed mixed gas is discharged through the gas delivery pipe 109, which is equipped with a dryer 110 and a carbon dioxide concentration detector 111. The detector monitors the carbon dioxide concentration in the exhaust gas in real time, and the data is synchronously uploaded to the computer terminal for real-time display and storage. After the experiment, the raw data such as flow rate, pressure, and concentration are exported via USB flash drive. The instantaneous adsorption capacity, cumulative adsorption capacity, and adsorption rate are then calculated. This is the current process of the solid waste particle carbon dioxide adsorption test experimental device.

[0004] In the above-mentioned carbon dioxide adsorption test apparatus, carbon dioxide gas is input from the bottom of the adsorption tube and flows from bottom to top through the static particle layer. Adsorption is achieved by gas diffusion and contact with the particle surface. However, since the solid waste particles are in a static stacked state during the test, the gas flow tends to form preferential channels (i.e., "channeling effect") along the fixed gaps between the particles, resulting in uneven gas-solid contact. Some particle surfaces cannot fully participate in the adsorption reaction. In addition, when the gas flow rate is high, the contact time between the gas and the static particle layer is short, which often limits the true display of adsorption efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an experimental device for testing carbon dioxide adsorption of solid waste particles. By continuously scattering the solid waste particles to be tested from the top of the adsorption tube, they form a countercurrent contact with the incoming carbon dioxide gas flow. Moreover, during the dispersion and falling process, the solid waste particles not only prolong the interaction time with the carbon dioxide-containing mixed gas and the solid waste particles, but also significantly increase the effective contact area between the solid waste particles and the carbon dioxide-containing mixed gas per unit time, thereby more fully utilizing the adsorption potential of the material.

[0006] To achieve the above objectives, this utility model provides an experimental device for testing carbon dioxide adsorption of solid waste particles:

[0007] It includes an adsorption tube 1, an adsorption tube 2 above the adsorption tube 1, an internally threaded sleeve fixed to the bottom of the adsorption tube 2, and an externally threaded sleeve fixed to the top of the adsorption tube 1. The internally threaded sleeve and the externally threaded sleeve are threadedly connected. A storage cylinder is provided at the top of the adsorption tube 1. A rotating rod is rotatably connected to the bottom of the adsorption tube 1. A servo motor is installed at the bottom of the adsorption tube 1, and the end of the rotating rod extending outside the adsorption tube 1 is fixed to the output end of the servo motor. The top of the rotating rod is fixed to the storage cylinder. Multiple material discharge holes are opened at the bottom of the storage cylinder. The bottom of the storage cylinder is fixed. There are multiple open boxes, and a baffle is slidably connected inside the open box. The baffle has a through hole. Multiple guide rods are fixed to the outer side of the bottom of the storage cylinder. An anti-detachment block is fixed to the end of the guide rod away from the storage cylinder. A weight block is slidably connected to the outer side of the guide rod. A connecting rope is fixed to one side of the baffle. The connecting rope passes through the open box and slides inside the open box. One end of the connecting rope after passing through the open box is fixed to the corresponding weight block. A spring is sleeved on the outer side of the connecting rope. The two ends of the spring abut against the inner wall of the open box and one side of the baffle, respectively.

[0008] Preferably, in the normal state, the baffle blocks the discharge hole, and the baffle part is still located in the open box. When the storage cylinder rotates, the weight block will move on the guide rod under the action of centrifugal force and pull the baffle through the connecting rope. After the baffle is pulled into the open box, the through hole and the discharge hole coincide, and the solid waste particles in the storage cylinder fall into the adsorption tube from the discharge hole and the through hole.

[0009] Preferably, a limiting sleeve is provided in the middle of the adsorption tube, the rotating rod passes through the limiting sleeve and rotates inside the limiting sleeve, and two brackets are fixed on the outside of the limiting sleeve, with the ends of the brackets away from the limiting sleeve being fixed to the inner wall of the adsorption tube.

[0010] Preferably, the bottom of the first adsorption tube is fixed and connected to an air inlet pipe, and the top of the second adsorption tube is fixed and connected to an air outlet pipe.

[0011] Preferably, the top of the adsorption tube is provided with a receiving hopper, and the bottom of the receiving hopper is in contact with the inner wall of the adsorption tube, and the diameter of the receiving hopper gradually increases from top to bottom.

[0012] Preferably, a pull rod is fixed to the top of the receiving hopper, and the pull rod passes through the second adsorption tube and slides inside the second adsorption tube.

[0013] Preferably, a rubber ring is fixed at the bottom of the first adsorption tube and the top of the second adsorption tube. The rotating rod passes through the rubber ring at the bottom of the first adsorption tube and rotates in a sealed manner within the rubber ring. The pull rod passes through the rubber ring at the top of the second adsorption tube and slides in a sealed manner within the rubber ring.

[0014] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0015] 1. When the storage cylinder rotates, the weight block moves on the guide rod under the action of centrifugal force and drives the baffle to move into the open box. When the through hole and the discharge hole coincide, the solid waste particles in the storage cylinder will fall into the adsorption tube one from the discharge hole and the through hole. The solid waste particles fall freely from top to bottom in the adsorption tube one, while the mixed gas containing carbon dioxide is transported from top to top in the adsorption tube one. This makes the airflow of the mixed gas containing carbon dioxide and the solid waste particles form a countercurrent contact. This not only prolongs the interaction time between the mixed gas containing carbon dioxide and the solid waste particles, but also greatly increases the effective contact area between the solid waste particles to be tested and the mixed gas containing carbon dioxide per unit time, thereby making fuller use of the adsorption potential of the material.

[0016] 2: After all the solid waste particles in the storage cylinder have fallen into the adsorption tube 1, invert the adsorption tube 1 and adsorption tube 2, and rotate the adsorption tube 1 to be above the adsorption tube 2. At this time, the solid waste particles at the bottom of the adsorption tube 1 will fall from the adsorption tube 1 into the receiving hopper in the adsorption tube 2. Then push the pull rod upward and move the receiving hopper upward. When the receiving hopper moves to be in contact with the storage cylinder, rotate the adsorption tube 1 and adsorption tube 2 back to their original positions, so that the adsorption tube 2 is above the adsorption tube 1. At this time, the solid waste particles collected in the receiving hopper will fall into the storage cylinder, so that the solid waste particles can be easily recycled back into the storage cylinder, and the experiment can be repeated. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the structural connection of the experimental device for testing carbon dioxide adsorption of solid waste particles in the prior art.

[0018] Figure 2 is a schematic diagram of the structure of the adsorption tube provided by this utility model;

[0019] Figure 3 is a cross-sectional and disassembled schematic diagram of the structure in Figure 2 provided by this utility model;

[0020] Figure 4 is an enlarged schematic diagram of the structure at point A in Figure 3 provided by this utility model;

[0021] Figure 5 is a cross-sectional structural diagram of the adsorption tube one provided by this utility model;

[0022] Figure 6 is an enlarged schematic diagram of the structure at point B in Figure 5 provided by this utility model;

[0023] Figure 7 is a cross-sectional structural diagram of the open box body provided by this utility model;

[0024] Figure 8 is an enlarged schematic diagram of the structure at point C in Figure 3 provided by this utility model.

[0025] Figure Descriptions: 1. Adsorption tube one; 2. Adsorption tube two; 3. Internal threaded sleeve; 4. External threaded sleeve; 5. Storage cylinder; 6. Rotating rod; 7. Servo motor; 8. Receiving hopper; 9. Pull rod; 10. Discharge hole; 11. Open box body; 12. Baffle; 13. Through hole; 14. Guide rod; 15. Anti-detachment block; 16. Weight block; 17. Connecting rope; 18. Spring; 19. Limiting sleeve; 20. Support; 21. Inlet pipe; 22. Outlet pipe; 23. Rubber ring; 101. Carbon dioxide cylinder; 102. Carrier gas cylinder; 103. Gas delivery pipe one; 104. Pressure reducing valve; 105. Mass flow controller; 106. Gas mixer; 107. Gas delivery pipe two; 108. Adsorption tube; 109. Gas delivery pipe three; 110. Dryer; 111. Carbon dioxide concentration detector. Detailed Implementation

[0026] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0027] Refer to Figure 1-8:

[0028] In one embodiment of this utility model, a test apparatus for carbon dioxide adsorption of solid waste particles is provided, including an adsorption tube 1, an adsorption tube 2 above the adsorption tube 1, an internally threaded sleeve 3 fixed to the bottom of the adsorption tube 2, an externally threaded sleeve 4 fixed to the top of the adsorption tube 1, the internally threaded sleeve 3 and the externally threaded sleeve 4 being threadedly connected, a storage cylinder 5 at the top of the adsorption tube 1, a rotating rod 6 rotatably connected to the bottom of the adsorption tube 1, a servo motor 7 installed at the bottom of the adsorption tube 1, and the end of the rotating rod 6 extending outside the adsorption tube 1 being fixed to the output end of the servo motor 7, the top of the rotating rod 6 being fixed to the storage cylinder 5, multiple discharge holes 10 at the bottom of the storage cylinder 5, and multiple open boxes 11 fixed to the bottom of the storage cylinder 5. A baffle 12 is slidably connected inside the storage cylinder 5. A through hole 13 is opened in the baffle 12. Multiple guide rods 14 are fixed on the outer side of the bottom of the storage cylinder 5. An anti-detachment block 15 is fixed at the end of the guide rod 14 away from the storage cylinder 5. A weight block 16 is slidably connected to the outer side of the guide rod 14. A connecting rope 17 is fixed on one side of the baffle 12. The connecting rope 17 passes through the open box 11 and slides inside the open box 11. One end of the connecting rope 17 after passing through the open box 11 is fixed to the corresponding weight block 16. A spring 18 is sleeved on the outer side of the connecting rope 17. The two ends of the spring 18 abut against the inner wall of the open box 11 and one side of the baffle 12, respectively. An air inlet pipe 21 is fixed at the bottom of the adsorption tube 1 and connected to the bottom of the adsorption tube 2. An air outlet pipe 22 is fixed at the top of the adsorption tube 2.

[0029] Specifically, when the spring 18 is in its normal state, the baffle 12 blocks the discharge hole 10, and part of the baffle 12 is still located inside the open box 11. When the storage cylinder 5 rotates, the weight block 16 will move on the guide rod 14 under the action of centrifugal force and pull the baffle 12 through the connecting rope 17. After the baffle 12 is pulled into the open box 11, the through hole 13 and the discharge hole 10 coincide, and the solid waste particles in the storage cylinder 5 fall into the adsorption tube 1 from the discharge hole 10 and the through hole 13.

[0030] It should be noted that, as shown in Figure 1, the adsorption tube 108 in the existing solid waste particle carbon dioxide adsorption test experimental device is the same as the adsorption tube 1, adsorption tube 2, and their internal structure in this embodiment. During use, the adsorption tube 2 is rotated to drive the inner threaded sleeve 3 to rotate. After the inner threaded sleeve 3 and the outer threaded sleeve 4 separate, the adsorption tube 2 is removed from the adsorption tube 1. Then, the solid waste particles are poured into the storage cylinder 5, and the inner threaded sleeve 3 and the outer threaded sleeve 4 are threaded together. When the mixed gas containing carbon dioxide is transported to the adsorption tube 1 through the inlet pipe 21, the servo motor 7 is started to drive the rotating rod 6 to rotate. When the rotating rod 6 rotates, it drives the storage cylinder 5 to rotate. When the storage cylinder 5 rotates, the weight block 16 moves on the guide rod 14 under centrifugal force. When the weight block 16 moves, it pulls the baffle 12 through the connecting rope 17 and drives the baffle 12 to move into the open box 11. When one end of the weight block 16 and... When the anti-detachment block 15 is in contact with the material, the through hole 13 and the discharge hole 10 coincide. At this time, the solid waste particles in the storage cylinder 5 will fall from the discharge hole 10 and the through hole 13 into the adsorption tube 1. The solid waste particles will fall freely from top to bottom in the adsorption tube 1, while the mixed gas containing carbon dioxide will be transported from top to top in the adsorption tube 1. This will cause the airflow of the mixed gas containing carbon dioxide and the solid waste particles to form a countercurrent contact, which will not only prolong the interaction time between the mixed gas containing carbon dioxide and the solid waste particles, but also greatly increase the effective contact area between the solid waste particles to be tested and the mixed gas containing carbon dioxide per unit time, thereby making fuller use of the adsorption potential of the material. After the solid waste particles adsorb the mixed gas containing carbon dioxide, the airflow of the mixed gas will continue to move upward into the adsorption tube 2 and be discharged from the outlet pipe 22. Then, the concentration of carbon dioxide in the gas discharged from the outlet pipe 22 is detected, thus completing the experiment.

[0031] It should be understood that, further, when the test ends, the gas supply is stopped and the servo motor 7 is turned off (it should be noted that the guide rod 14 is set at an angle, and the position of the guide rod 14 away from the storage cylinder 5 is higher than the position where the anti-detachment block 15 and the storage cylinder 5 are fixed). That is, when the storage cylinder 5 stops rotating, the weight block 16 will slide down the guide rod 14 towards the storage cylinder 5 under the action of gravity. At this time, under the rebound force of the spring 18, the baffle 12 will move outward from the open box 11. When the weight block 16 slides down to the point of contact with the storage cylinder 5, the spring 18 returns to its original state. At this time, part of the baffle 12 is still located in the open box 11, while the through hole 13 and the discharge hole 10 have been misaligned. At this time, the baffle 12 seals the discharge hole 10, that is, the solid waste particles will no longer be discharged from the discharge hole 10, and the connecting rope 17 also has a pulling effect on the baffle 12, that is, the baffle 12 will not move out of the open box 11.

[0032] Furthermore, a limiting sleeve 19 is provided in the middle of the adsorption tube 1. The rotating rod 6 passes through the limiting sleeve 19 and rotates within the limiting sleeve 19. Two brackets 20 are fixed on the outside of the limiting sleeve 19, and the ends of the brackets 20 away from the limiting sleeve 19 are fixed to the inner wall of the adsorption tube 1. A receiving hopper 8 is provided at the top of the adsorption tube 2, and the bottom of the receiving hopper 8 is in contact with the inner wall of the adsorption tube 2. The diameter of the receiving hopper 8 gradually increases from top to bottom. A pull rod 9 is fixed at the top of the receiving hopper 8. The pull rod 9 passes through the adsorption tube 2 and slides within the adsorption tube 2. Rubber rings 23 are fixed at the bottom of the adsorption tube 1 and the top of the adsorption tube 2. The rotating rod 6 passes through the rubber ring 23 at the bottom of the adsorption tube 1 and rotates within the rubber ring 23 in a sealed manner. The pull rod 9 passes through the rubber ring 23 at the top of the adsorption tube 2 and slides within the rubber ring 23 in a sealed manner.

[0033] It should be noted that after all the solid waste particles in the storage cylinder 5 have fallen into the adsorption tube 1, by inverting the adsorption tube 1 and the adsorption tube 2, the adsorption tube 1 is rotated to be above the adsorption tube 2. At this time, the solid waste particles at the bottom of the adsorption tube 1 will fall into the receiving hopper 8 in the adsorption tube 2. Then, the pull rod 9 is pushed upward to move the receiving hopper 8 upward. When the receiving hopper 8 moves to be in contact with the storage cylinder 5, the adsorption tube 1 and the adsorption tube 2 are rotated back to their original positions, so that the adsorption tube 2 is rotated to be above the adsorption tube 1. At this time, the solid waste particles collected in the receiving hopper 8 will fall into the storage cylinder 5. Then, the pull rod 9 is pulled to move the receiving hopper 8 to the top of the adsorption tube 2, that is, the solid waste particles are recycled back into the storage cylinder 5, and the experiment can be repeated.

Claims

1. An experimental apparatus for testing carbon dioxide adsorption in solid waste particles, comprising an adsorption tube (1), characterized in that, An adsorption tube 2 (2) is provided above the adsorption tube 1 (1). An internal threaded sleeve (3) is fixed at the bottom of the adsorption tube 2 (2). An external threaded sleeve (4) is fixed at the top of the adsorption tube 1 (1). The internal threaded sleeve (3) and the external threaded sleeve (4) are threaded together. A storage cylinder (5) is provided at the top of the adsorption tube 1 (1). A rotating rod (6) is rotatably connected to the bottom of the adsorption tube 1 (1). A servo motor (7) is installed at the bottom of the adsorption tube 1 (1). The end of the rotating rod (6) extending outside the adsorption tube 1 (1) is fixed to the output end of the servo motor (7). The top of the rotating rod (6) is fixed to the storage cylinder (5). Multiple discharge holes (10) are opened at the bottom of the storage cylinder (5). Multiple open boxes (11) are fixed at the bottom of the storage cylinder (5). 11) A baffle (12) is slidably connected inside. A through hole (13) is opened in the baffle (12). Multiple guide rods (14) are fixed on the outer side of the bottom of the storage cylinder (5). An anti-detachment block (15) is fixed at the end of the guide rod (14) away from the storage cylinder (5). A weight block (16) is slidably connected to the outer side of the guide rod (14). A connecting rope (17) is fixed on one side of the baffle (12). The connecting rope (17) passes through the open box (11) and slides inside the open box (11). One end of the connecting rope (17) after passing through the open box (11) is fixed to the corresponding weight block (16). A spring (18) is sleeved on the outer side of the connecting rope (17). The two ends of the spring (18) abut against the inner wall of the open box (11) and one side of the baffle (12), respectively.

2. The experimental apparatus for testing carbon dioxide adsorption of solid waste particles according to claim 1, characterized in that, In its normal state, the spring (18) blocks the discharge hole (10) with the baffle (12), and the baffle (12) is still located inside the open box (11). When the storage cylinder (5) rotates, the weight block (16) moves on the guide rod (14) under the action of centrifugal force and pulls the baffle (12) through the connecting rope (17). After the baffle (12) is pulled into the open box (11), the through hole (13) and the discharge hole (10) overlap, and the solid waste particles in the storage cylinder (5) fall into the adsorption tube (1) from the discharge hole (10) and the through hole (13).

3. The experimental apparatus for testing carbon dioxide adsorption of solid waste particles according to claim 1, characterized in that, The adsorption tube (1) is provided with a limiting sleeve (19) in the middle. The rotating rod (6) passes through the limiting sleeve (19) and rotates inside the limiting sleeve (19). Two brackets (20) are fixed on the outside of the limiting sleeve (19), and the end of the bracket (20) away from the limiting sleeve (19) is fixed to the inner wall of the adsorption tube (1).

4. The experimental apparatus for testing carbon dioxide adsorption of solid waste particles according to claim 1, characterized in that, The bottom of the first adsorption tube (1) is fixed and connected to the air inlet pipe (21), and the top of the second adsorption tube (2) is fixed and connected to the air outlet pipe (22).

5. The experimental apparatus for testing carbon dioxide adsorption of solid waste particles according to claim 1, characterized in that, The top of the adsorption tube 2 (2) is provided with a receiving hopper (8), and the bottom of the receiving hopper (8) is in contact with the inner wall of the adsorption tube 2 (2). The diameter of the receiving hopper (8) gradually increases from top to bottom.

6. The experimental apparatus for testing carbon dioxide adsorption of solid waste particles according to claim 5, characterized in that, A pull rod (9) is fixed to the top of the receiving hopper (8). The pull rod (9) passes through the second adsorption tube (2) and slides inside the second adsorption tube (2).

7. The experimental apparatus for testing carbon dioxide adsorption of solid waste particles according to claim 6, characterized in that, A rubber ring (23) is fixed at the bottom of the first adsorption tube (1) and the top of the second adsorption tube (2). The rotating rod (6) passes through the rubber ring (23) at the bottom of the first adsorption tube (1) and rotates in a sealed manner within the rubber ring (23). The pull rod (9) passes through the rubber ring (23) at the top of the second adsorption tube (2) and slides in a sealed manner within the rubber ring (23).

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