Sealing device for fixing CO2 through waste residues

Abstract

The utility model relates to the technical field of industrial waste residues, and provides a CO2 sealing device for fixing waste residues, which comprises a pressure cylinder, a gas inlet pipeline, an embedded sleeve and a stirring mechanism, the air inlet pipeline is communicated with the pressure cylinder, and an air inlet valve is arranged on the air inlet pipeline; the stirring mechanism is rotationally arranged in the pressure cylinder and used for stirring solid waste. According to the sealing device for fixing CO2 in waste residues, pressure is provided through the pressure cylinder, the gas inlet pipeline is communicated with the pressure cylinder and used for conveying gas containing carbon dioxide into the pressure cylinder, and the stirring mechanism is rotationally arranged in the pressure cylinder and used for stirring solid waste so that the solid waste can make full contact with the carbon dioxide, and the CO2 in the waste residues can be completely fixed. The gas-solid contact area is increased, efficient and uniform carbon sequestration can be realized, and the method is an effective way for realizing waste gas and industrial carbon sequestration double-waste utilization.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial waste residues, in particular to a closed device for fixing CO2 in waste residues. Background Art

[0002] In the building materials industry, carbon emissions account for about 13.5% of the country's total carbon emissions, so there is an urgent need to develop carbon capture and utilization technology. In addition, large-scale replacement of cement clinker with industrial solid waste is considered to be one of the effective ways to reduce clinker production and indirectly reduce carbon emissions.

[0003] However, the current level of solid waste utilization is low, resulting in huge reserves and the need to expand utilization channels.

[0004] Therefore, how to provide a closed device for fixing CO2 in waste slag is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] The utility model provides a closed device for fixing CO2 with waste residue, which is used to solve the defect of low utilization rate of solid waste in the prior art and realize efficient fixation of carbon dioxide with industrial solid waste.

[0006] The utility model provides a closed device for fixing CO2 in waste residue, comprising:

[0007] A pressure cylinder containing solid waste that can react with carbon dioxide;

[0008] An air intake pipe is connected to the pressure cylinder and is provided with an air intake valve;

[0009] The stirring mechanism is rotatably arranged inside the pressure cylinder, and the stirring mechanism is used to stir the solid waste.

[0010] According to the utility model, a closed device for fixing CO2 with waste residues also includes:

[0011] The air outlet pipeline is communicated with the top of the pressure cylinder, and an air outlet valve is arranged on the air outlet pipeline.

[0012] According to the closed device for fixing CO2 in waste slag provided by the utility model, a flow meter and a carbon dioxide concentration meter are arranged on the air intake pipeline.

[0013] According to a closed device for fixing CO2 in waste slag provided by the utility model, the pressure cylinder comprises:

[0014] The cylinder is hollow inside, and the air inlet pipe is connected to the inside of the cylinder;

[0015] A sealing cover, sealingly connected to the top of the cylinder;

[0016] The buckles are used to connect the cylinder and the sealing cover, and the buckles are evenly distributed on the periphery of the sealing cover.

[0017] According to the utility model, a closed device for fixing CO2 with waste residues also includes:

[0018] The inner nested cylinder is sleeved inside the pressure cylinder and is used for containing the solid waste.

[0019] According to the closed device for fixing CO2 in waste slag provided by the utility model, a pressure gauge and a thermometer and hygrometer are arranged on the top of the sealing cover.

[0020] According to the utility model, a closed device for fixing CO2 with waste residues also includes:

[0021] The limiting groove is arranged inside the cylinder and located at the outer periphery of the inner nested cylinder, and the distance between the limiting groove and the inner nested cylinder is a, and the distance between the limiting groove and the inner wall of the cylinder is b, and a is smaller than b.

[0022] According to a closed device for fixing CO2 in waste slag provided by the utility model, the stirring mechanism comprises:

[0023] A motor, arranged on the top of the sealing cover;

[0024] A stirring blade is located inside the cylinder;

[0025] A stirring shaft has one end connected to the motor and the other end passing through the sealing cover, extending to the interior of the cylinder and connected to the stirring blade.

[0026] According to the closed device for fixing CO2 with waste slag provided by the utility model, the stirring blade is located below the horizontal center line of the cylinder.

[0027] According to the closed device for fixing CO2 in waste slag provided by the utility model, the cylinder body and the inner nested cylinder are both cylindrical.

[0028] The utility model provides a closed device for fixing CO2 with waste residue, which provides pressure through a pressure cylinder. The air intake pipe is connected to the pressure cylinder and is used to transport carbon dioxide into the pressure cylinder. The inner nested cylinder is sleeved inside the pressure cylinder, and the inner nested cylinder is used to hold solid waste that can react with carbon dioxide. The stirring mechanism is rotatably arranged inside the pressure cylinder and is used to stir the solid waste so that the solid waste is in full contact with the carbon dioxide, thereby increasing the gas-solid contact area and realizing efficient and uniform carbon fixation. It is an effective way to realize the dual waste utilization of waste gas and industrial carbon fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the structure of the closed device for fixing CO2 with waste slag provided by the utility model;

[0031] Figure 2 It is a top view of the closed device for fixing CO2 with waste slag provided by the utility model;

[0032] Reference numerals:

[0033] 1. Pressure cylinder; 2. Air inlet pipe; 3. Air inlet valve; 4. Inner nested cylinder; 5. Stirring mechanism; 6. Air outlet pipe; 7. Air outlet valve; 8. Flow meter; 9. Carbon dioxide concentration meter; 10. Pressure gauge; 11. Thermo-hygrometer; 12. Limiting groove; 13. Air outlet;

[0034] 101, cylinder; 102, sealing cover; 103, buckle;

[0035] 501, motor; 502, stirring blade; 503, stirring shaft. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. The embodiments used in the utility model and all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship for the orientation or position relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] Combine the following Figure 1 to Figure 2 The utility model describes a closed device for fixing CO2 with waste residue.

[0039] like Figure 1 As shown, the utility model provides a closed device for fixing CO2 in waste residue, comprising a pressure cylinder 1, an air intake pipe 2, an air intake valve 3, an inner nested cylinder 4 and a stirring mechanism 5, which not only solves the problem of carbon dioxide emission, but also realizes the resource recycling of solid waste.

[0040] The pressure cylinder 1 is used to provide pressure. The pressure cylinder 1 is made of high-strength materials and can withstand high pressure. The pressure cylinder 1 can withstand a pressure of 0.1 to 30 MPa. A sealing structure is provided inside the pressure cylinder 1 to ensure that no leakage occurs under high pressure. The air intake pipe 2 is connected to the pressure cylinder 1 and is used to transport gas into the device. The gas can be a mixed gas or multiple types of gas, which enter the pressure cylinder 1 at the same time through the connecting valve. An air intake valve 3 is provided on the air intake pipe 2 to control the flow and on-off of the gas. The inner nested cylinder 4 is sleeved inside the pressure cylinder 1 and is made of corrosion-resistant material. The inner nested cylinder 4 is used to hold solid waste that can react with carbon dioxide, such as alkaline waste residue, industrial waste residue, etc. The stirring mechanism 5 is rotatably arranged inside the pressure cylinder 1, and the stirring mechanism 5 is used to stir the solid waste so that it is more evenly mixed with the carbon dioxide gas, thereby increasing the gas-solid contact area, and realizing efficient and uniform carbon fixation, which is an effective way to realize the utilization of waste gas and industrial carbon fixation.

[0041] When in use, first put the solid waste into the inner nested cylinder 4 and close all the sealing structures of the device. Then, introduce the gas containing carbon dioxide into the device through the air inlet pipe 2, and adjust the opening of the air inlet valve 3 to control the gas flow. Under the joint action of high pressure and stirring mechanism 5, the solid waste reacts chemically with the gas to achieve the fixation of carbon dioxide. After the reaction is completed, the solid waste after the reaction is discharged by opening the discharge port of the device, completing the entire treatment process.

[0042] The above embodiment is used for carbon fixation of waste slag under pressure conditions. At this time, the pressure bearing capacity of the pressure cylinder 1 is required to be relatively high. During the carbon fixation process, the air inlet pipe 2 is opened and the pressure is adjusted by the air inlet valve 3.

[0043] In addition, in another feasible embodiment of the utility model, it can also be used for waste slag carbon fixation in the gas flow process. At this time, the pressure bearing capacity of the pressure cylinder 1 is required to be relatively low. It also includes an outlet pipe 6, which is connected to the top of the pressure cylinder 1 and is used to discharge the gas that does not participate in the reaction or the gas generated by the reaction during the reaction. An outlet valve 7 is provided on the outlet pipe 6. By controlling the opening and closing of the outlet valve 7, the gas discharge speed can be adjusted or the gas can be collected. In the carbon fixation process, the inlet pipe 2 and the outlet pipe 6 are opened at the same time, and the flow rate of the gas entering is controlled by the opening size of the inlet valve 3 and the outlet valve 7.

[0044] In a feasible embodiment of the utility model, a flow meter 8 and a carbon dioxide concentration meter 9 are provided on the air inlet pipe 2. The flow meter 8 is used to monitor and record the gas flow entering the device in real time to ensure accurate control of the gas flow. The carbon dioxide concentration meter 9 is used to measure the concentration of carbon dioxide gas entering the device to ensure that the gas concentration meets the reaction requirements. The data of the flow meter 8 and the carbon dioxide concentration meter 9 can be saved and exported.

[0045] In a feasible embodiment of the utility model, the pressure cylinder 1 includes a cylinder 101 and a sealing cover 102. The cylinder 101 is hollow inside and is used to accommodate the inner nested cylinder 4 and the stirring mechanism 5. The air inlet pipe 2 is connected to the inside of the cylinder 101 to ensure that carbon dioxide can smoothly enter the cylinder 101. The sealing cover 102 is sealed and connected to the top of the cylinder 101 to ensure that the cylinder 101 will not leak under high pressure. At the same time, the sealing cover 102 can be provided with an air outlet 13 for connecting the air outlet pipe 6 and other necessary pipes or equipment.

[0046] In a feasible embodiment of the present invention, the pressure cylinder 1 also includes a buckle 103 for connecting the cylinder body 101 and the sealing cover 102, and the buckle 103 is evenly distributed on the outer circumference of the sealing cover 102. In the circumferential direction of the sealing cover 102, the buckle 103 makes the cylinder body 101 and the sealing cover 102 tightly sealed to ensure that the sealing cover 102 can be evenly stressed and fit tightly on the cylinder body 101.

[0047] In a feasible embodiment of the utility model, a pressure gauge 10 and a thermo-hygrometer 11 are provided on the top of the sealing cover 102. The pressure gauge 10 is used to measure and display the pressure value inside the pressure cylinder 1. In applications where precise pressure control is required, the pressure gauge 10 is crucial. By monitoring the internal pressure in real time, the user can ensure that the operation is carried out within a safe range and adjust the pressure as needed. The pressure gauge 10 can be mechanical, electronic or other types, depending on the application requirements and accuracy requirements. The thermo-hygrometer 11 is used to measure and display the temperature and humidity values ​​inside the pressure cylinder 1. By setting the pressure gauge 10 and the thermo-hygrometer 11 on the top of the sealing cover 102, the user can read the pressure, temperature and humidity readings directly from above the sealing cover 102 without disassembling or moving the pressure cylinder 1. Since these instruments are located above the sealing cover 102, they are less likely to be interfered with or contaminated by the substances inside the cylinder 101.

[0048] In a feasible embodiment of the present invention, a limiting groove 12 is further included, which is arranged inside the cylinder 101 and located at the outer periphery of the inner nested cylinder 4, and the distance between the limiting groove 12 and the inner nested cylinder 4 is a, and the distance between the limiting groove 12 and the inner wall of the cylinder 101 is b, and a is smaller than b. The main purpose of the limiting groove 12 is to limit the inner nested cylinder 4 to ensure the correct position and stability of the inner nested cylinder 4, prevent the inner nested cylinder 4 from being excessively offset during operation, and avoid blocking the air intake pipe 2.

[0049] In a feasible embodiment of the utility model, the stirring mechanism 5 includes a motor 501, a stirring blade 502 and a stirring shaft 503. The motor 501 is arranged on the top of the sealing cover 102, so that the motor 501 is away from the medium in the cylinder 101, reducing the risk of corrosion or contamination of the motor 501 caused by the medium. At the same time, the motor 501 can also be more conveniently connected to the sealing cover 102 and the stirring shaft 503 to ensure stable power transmission. The stirring blade 502 is located inside the cylinder 101. Since the stirring blade 502 stirs solid waste gas, it is necessary to select a stirring blade 502 with a relatively wide blade to increase the stirring force. One end of the stirring shaft 503 is connected to the motor 501, and the other end passes through the sealing cover 102 and extends to the inside of the cylinder 101 and is connected to the stirring blade 502. The stirring shaft 503 needs to consider factors such as its strength, rigidity and wear resistance to ensure that it will not break, bend or excessively wear during the stirring process.

[0050] The stirring shaft 503 is driven by the motor 501 to rotate, thereby driving the stirring blade 502 to rotate and stir inside the cylinder 101. This design can effectively mix the medium in the cylinder 101 evenly to meet various process requirements. At the same time, since the motor 501 is arranged on the top of the sealing cover 102, it can be easily maintained and replaced.

[0051] In a feasible embodiment of the present invention, the stirring blade 502 is located below the horizontal center line of the barrel 101, that is, the stirring blade 502 can stir most of the blades in the barrel 101, thereby reducing the stirring dead corners in the barrel 101. The stirring dead corners can be understood as areas where the material is difficult to be reached by the stirring blades, which are usually located at the bottom or corners of the barrel 101. By lowering the position of the stirring blade 502, it can be ensured that these areas can also be fully stirred and mixed.

[0052] In a feasible embodiment of the present invention, the cylinder body 101 and the inner nested cylinder 4 are both cylindrical, and may also be square.

[0053] Therefore, the closed device for fixing CO2 with waste slag provided by the utility model can realize the rubbing of parameters in the carbon fixation process. At the same time, the waste slag can be fully contacted with carbon dioxide through stirring, thereby increasing the gas-solid contact area, and realizing efficient and uniform carbon fixation. It is an effective way to realize the dual utilization of waste gas and industrial solid waste.

[0054] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A closed device for fixing CO2 with waste residue, characterized in that: include: A pressure cylinder (1) containing solid waste capable of reacting with carbon dioxide; An air intake pipe (2) is connected to the pressure cylinder (1), and an air intake valve (3) is provided on the air intake pipe (2); A stirring mechanism (5) is rotatably arranged inside the pressure cylinder (1), and the stirring mechanism (5) is used to stir the solid waste.

2. The closed device for fixing CO2 with waste slag according to claim 1, characterized in that: Also includes: An air outlet pipe (6) is communicated with the top of the pressure cylinder (1), and an air outlet valve (7) is provided on the air outlet pipe (6).

3. The closed device for fixing CO2 with waste residue according to claim 1, characterized in that: The air intake pipe (2) is provided with a flow meter (8) and a carbon dioxide concentration meter (9).

4. The closed device for fixing CO2 with waste residue according to claim 1, characterized in that: The pressure cylinder (1) comprises: The cylinder (101) is hollow inside, and the air intake pipe (2) is in communication with the inside of the cylinder (101); A sealing cover (102) is sealingly connected to the top of the cylinder (101); The buckles (103) are used to connect the cylinder (101) and the sealing cover (102), and the buckles (103) are evenly distributed on the periphery of the sealing cover (102).

5. The closed device for fixing CO2 with waste residue according to claim 4, characterized in that: Also includes: The inner nested cylinder (4) is sleeved inside the cylinder body (101), and the inner nested cylinder (4) is used to contain the solid waste.

6. The closed device for fixing CO2 with waste residue according to claim 4, characterized in that: A pressure gauge (10) and a thermometer and hygrometer (11) are provided on the top of the sealing cover (102).

7. The closed device for fixing CO2 with waste residue according to claim 5, characterized in that: Also includes: The limiting groove (12) is arranged inside the cylinder (101) and is located on the outer periphery of the inner nested cylinder (4), and the distance between the limiting groove (12) and the inner nested cylinder (4) is a, and the distance between the limiting groove (12) and the inner wall of the cylinder (101) is b, and a is smaller than b.

8. The closed device for fixing CO2 with waste residue according to claim 4, characterized in that: The stirring mechanism (5) comprises: A motor (501) is arranged on the top of the sealing cover (102); A stirring blade (502) is located inside the cylinder (101); A stirring shaft (503) has one end connected to the motor (501) and the other end passing through the sealing cover (102) to extend into the interior of the cylinder (101) and connected to the stirring blade (502).

9. The closed device for fixing CO2 with waste residue according to claim 8, characterized in that: The stirring blade (502) is located below the horizontal center line of the cylinder (101).

10. The closed device for fixing CO2 with waste residue according to claim 5, characterized in that: The cylinder body (101) and the inner nested cylinder (4) are both cylindrical.

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