Carbonization test box with stirring device

Abstract

The utility model relates to the technical field of material carbonization test, in particular to a carbonization test box with a stirring device, which comprises a carbonization test box body and the stirring device positioned in the carbonization test box body and driven by a motor, and the stirring device comprises a stirring pot, a stirring rod positioned in the stirring pot and provided with a paddle blade, and a rotating shaft connected with the stirring rod, the rotating shaft is connected with a driving shaft of a motor, a fixing rod for limiting and fixing the carbonization test box body is arranged outside the stirring pot, the motor and the stirring device are mutually separated through a partition plate, a sealing ring is arranged at the joint of the rotating shaft and the partition plate, and a CO2 gas inlet is formed in the carbonization test box body. According to the carbonization test box with the stirring device, the stirring device is integrated in the carbonization test box, so that powder or slurry is continuously stirred in the carbonization process, the carbonization reaction is more uniform, meanwhile, the contact area of CO2 and the powder can be increased in the stirring process, and the carbonization efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material carbonization tests, in particular to a carbonization test chamber with a stirring device. Background Art

[0002] In the context of increasingly severe global environmental challenges, carbon capture, utilization, and storage (CCUS) technologies have received extensive attention. As a key technical equipment for providing a carbonization environment, the carbonization test chamber is widely used in the field of building materials research. This equipment can realize the accelerated carbonization curing process of cement-based materials or solid waste. By carbonization curing building materials, it can not only effectively improve their performance and quality, but also absorb a corresponding amount of CO2, thus helping to reduce greenhouse gas emissions. Therefore, in the key links such as the research and development, production, and performance testing of low-carbon building materials, the carbonization test chamber plays an indispensable role.

[0003] However, although the carbonization test chamber has played an important role in the building materials industry, currently the equipment mainly conducts carbonization curing on already formed products, and there are limitations in application when studying the carbonization of powders or slurries. The carbonization of powders or slurries refers to placing powders or slurries in a carbonization environment for curing. Taking powders as an example, since the carbonization reaction first occurs on the surface of the stacked powders, this results in insufficient carbonization degree of the inner-layer powders under a certain curing time, thus forming the problem of uneven carbonization. In addition, laying powders in a thin layer can achieve relatively uniform carbonization to a certain extent, but this method greatly reduces the carbonization efficiency due to the large area covered by the thin layer and limited equipment space. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: in order to overcome the deficiencies existing in the prior art, to provide a carbonization test chamber with a stirring device, which uniformly stirs powders during the carbonization curing process to achieve more uniform and efficient carbonization, thereby solving the problems of uneven carbonization and low efficiency when the carbonization test chamber carbonizes powders or slurries.

[0005] The technical solution adopted by the utility model to solve its technical problem is: a carbonization test chamber with a stirring device, including a carbonization test chamber body and a stirring device located inside the carbonization test chamber body and driven by a motor.

[0006] The stirring device includes a stirring pot, a stirring rod with paddle blades located inside the stirring pot, and a rotating shaft connecting the stirring rod. The rotating shaft is connected to the driving shaft of the motor.

[0007] Fixing rods for limiting and fixing with the carbonization test chamber body are arranged outside the stirring pot.

[0008] The motor and the stirring device are separated from each other by a partition, and a sealing ring is provided at the connection between the rotating shaft and the partition.

[0009] A CO2 inlet is provided inside the carbonation test chamber body.

[0010] Furthermore, bumps are provided on both outer sides of the stirring pot, and fixing tubes matching the bumps are provided on the inner wall of the carbonation test chamber body. The bumps are rotatably sleeved inside the fixing tubes to realize the rotational connection between the stirring pot and the carbonation test chamber body.

[0011] Furthermore, the paddle blades on the stirring rod are lower than the upper end surface of the stirring pot when rotating.

[0012] Furthermore, the stirring device is located in the lower half of the carbonation test chamber body, and cement-based material products placed on a shelf are provided above the stirring device inside the carbonation test chamber body.

[0013] Furthermore, a carbonation test chamber door is provided on the carbonation test chamber body.

[0014] Furthermore, the CO2 inlet is communicated with a CO2 gas cylinder located outside the carbonation test chamber body through a pipeline, and a cylinder valve and a pressure reducing valve are provided on the CO2 gas cylinder;

[0015] A CO2 concentration sensor and a temperature and humidity sensor are provided inside the carbonation test chamber body.

[0016] Furthermore, a controller is provided on the carbonation test chamber body, and the controller is connected to the cylinder valve, the pressure reducing valve, the CO2 concentration sensor and the temperature and humidity sensor through a PLC.

[0017] Furthermore, a stirring pot handle is provided on the stirring pot.

[0018] Specifically, the input pressure range of the pressure reducing valve is 0 - 15 MPa, and the output pressure is 0.6 MPa, which is used to reduce the pressure of high-pressure gas. The CO2 concentration sensor has a test range of 0 - 99.99%VOL and a resolution of 0.01%VOL, which is used to monitor the CO2 concentration in the carbonation chamber. The temperature and humidity sensor has a test range of -40°C to 120°C with an accuracy of ±0.5°C; 0 - 100%RH with an accuracy of ±2%RH. The stirring rod is a stirring rod with paddle blades, and the rotation speed is 30 - 80 r / min. The materials of the rotating shaft, the stirring rod and the stirring pot are all 316L.

[0019] The beneficial effects of the present utility model are as follows: The carbonization test chamber with a stirring device of the present utility model integrates a stirring device inside the carbonization test chamber, enabling continuous stirring of the powder or slurry during the carbonization process, thereby making the carbonization reaction more uniform. At the same time, the stirring process can increase the contact area between CO2 and the powder, improving the carbonization efficiency. The carbonization test chamber with a stirring device overcomes the problems of uneven carbonization and low efficiency existing in the carbonization test chamber when carbonizing powders or slurries. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of the present utility model.

[0022] Reference numerals in the figure: 1. CO2 gas cylinder, 2. gas cylinder valve, 3. pressure reducing valve, 4. controller, 5. carbonization test chamber body, 6. CO2 concentration sensor, 7. CO2 inlet, 8. cement-based material product, 9. carbonization test chamber door, 10. stirring pot handle, 11. stirring pot, 12. stirring rod, 13. rotating shaft, 14. fixed rod, 15. motor, 16 - bump, 17 - fixed pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0024] Figure 1 A carbonization test chamber with a stirring device as shown includes a carbonization test chamber body 5 and a stirring device located inside the carbonization test chamber body 5 and driven by a motor 15.

[0025] The stirring device includes a stirring pot 11, a stirring rod 12 with paddle blades located inside the stirring pot 11, and a rotating shaft 13 connecting the stirring rod 12. The rotating shaft 13 is connected to the drive shaft of the motor 15.

[0026] A fixed rod 14 for limiting and fixing with the carbonization test chamber body 5 is provided outside the stirring pot 11.

[0027] The motor 15 and the stirring device are separated from each other by a partition, and a sealing ring is provided at the connection between the rotating shaft 13 and the partition.

[0028] A CO2 inlet 7 is provided inside the carbonation test chamber body 5.

[0029] Convex blocks 16 are provided on both outer sides of the mixing pot 11, and fixing pipes 17 matching the convex blocks 16 are provided on the inner wall of the carbonation test chamber body 5. The convex blocks 16 are rotatably sleeved inside the fixing pipes 17 to realize the rotational connection between the mixing pot 11 and the carbonation test chamber body 5.

[0030] The paddle blades on the stirring rod 12 are lower than the upper end surface of the mixing pot 11 during rotation.

[0031] The stirring device is located in the lower half of the carbonation test chamber body 5, and a cement-based material product 8 placed on a shelf is provided inside the carbonation test chamber body 5 and above the stirring device.

[0032] A carbonation test chamber door 9 is provided on the carbonation test chamber body 5.

[0033] The CO2 inlet 7 is connected to a CO2 gas cylinder 1 located outside the carbonation test chamber body 5 through a pipeline, and a gas cylinder valve 2 and a pressure reducing valve 3 are provided on the CO2 gas cylinder 1;

[0034] A CO2 concentration sensor 6 and a temperature and humidity sensor are provided inside the carbonation test chamber body 5 described above.

[0035] A controller 4 is provided on the carbonation test chamber body 5, and the controller 4 is connected to the gas cylinder valve 2, the pressure reducing valve 3, the CO2 concentration sensor 6 and the temperature and humidity sensor through a PLC.

[0036] A mixing pot handle 10 is provided on the mixing pot 11.

[0037] Specific implementation steps:

[0038] Step 1: Place the pre-wetted powder or the pre-stirred slurry in the mixing pot 11, pull the fixing rod 14 to fix the mixing pot 11, and then close the carbonation test chamber door 9.

[0039] Step 2: Input the required CO2 concentration, temperature, humidity, stirring device rotation speed and running time for carbonation curing on the controller 4 of the carbonation test chamber 9. After setting, click to run. At this time, CO2 will be introduced into the carbonation test chamber 9, and at the same time, the rotating shaft 13 of the stirring device will continuously rotate at a preset speed, driving the stirring rod 12 to disperse the materials, so that all parts of the materials in the open mixing pot 11 can effectively contact CO2 and undergo a carbonation reaction. Since the stirring device only occupies a part of the volume of the carbonation test chamber 9, the other part of the space can still be used for the carbonation curing of the cement-based material product 8.

[0040] Step 3: When the carbonation test chamber runs to the set time, the CO2 gas cylinder 1 will stop supplying gas, and the stirring device will stop stirring at the same time. Open the large door 9 of the carbonation test chamber, open the stirring pot fixing rod 14, and push the stirring pot handle 10 to discharge the material, so as to obtain uniformly carbonized powder or slurry in a highly efficient manner.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A carbonization test box with a stirring device, characterized in that: The carbonization test box comprises a carbonization test box body (5) and a stirring device located in the carbonization test box body (5) and driven by a motor (15). The stirring device comprises a stirring pot (11), a stirring rod (12) with a paddle blade located in the stirring pot (11), and a rotating shaft (13) connected to the stirring rod (12), wherein the rotating shaft (13) is connected to a driving shaft of a motor (15). The stirring pot (11) is provided with a fixing rod (14) for limiting and fixing with the carbonization test box body (5). The motor (15) and the stirring device are separated from each other by a partition, and a sealing ring is provided at the connection between the rotating shaft (13) and the partition. The carbonization test box body (5) is provided with a CO2 air inlet (7).

2. The carbonization test box with a stirring device according to claim 1, characterized in that: The stirring pot (11) is provided with protrusions (16) on both outer sides, and the inner wall of the carbonization test box body (5) is provided with a fixing tube (17) matching the protrusions (16). The protrusions (16) are rotatably sleeved in the fixing tube (17) to realize the rotatable connection between the stirring pot (11) and the carbonization test box body (5).

3. The carbonization test box with a stirring device according to claim 1, characterized in that: The paddle blades on the stirring rod (12) are lower than the upper end surface of the stirring pot (11) when rotating.

4. The carbonization test box with a stirring device according to claim 1, characterized in that: The stirring device is located at the lower half of the carbonization test box body (5), and a cement-based material product (8) placed on a shelf is provided inside the carbonization test box body (5) and above the stirring device.

5. The carbonization test box with a stirring device according to claim 1, characterized in that: The carbonization test box body (5) is provided with a carbonization test box door (9).

6. The carbonization test box with a stirring device according to claim 1, characterized in that: The CO2 gas inlet (7) is connected to a CO2 gas cylinder (1) located outside the carbonization test box body (5) through a pipeline, and the CO2 gas cylinder (1) is provided with a gas cylinder valve (2) and a pressure reducing valve (3); The carbonization test box body (5) is provided with a CO2 concentration sensor (6) and a temperature and humidity sensor.

7. The carbonization test box with a stirring device according to claim 6, characterized in that: The carbonization test box body (5) is provided with a controller (4), and the controller (4) is connected with the gas cylinder valve (2), the pressure reducing valve (3), the CO2 concentration sensor (6) and the temperature and humidity sensor through PLC.

8. The carbonization test box with a stirring device according to claim 1, characterized in that: The stirring pot (11) is provided with a stirring pot handle (10).

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