Carbon dioxide capture apparatus based on steel slag grinding

Abstract

This utility model discloses a carbon dioxide capture device based on steel slag grinding, comprising: a hypergravity generator, consisting of a shell, a rotating shaft, and a centrifugal disc; a steel slag feeding device, disposed on the top of the shell; an air inlet device, disposed in the lower region of the reaction chamber of the hypergravity generator; and a grinding device, disposed on the inner wall of the side of the reaction chamber of the hypergravity generator. This embodiment provides a carbon dioxide capture device based on steel slag grinding, which efficiently grinds steel slag in a hypergravity environment, increasing the contact area between the steel slag and carbon dioxide, improving the carbon dioxide capture efficiency, and simultaneously realizing the resource utilization of steel slag, reducing environmental pollution. The steel slag is initially crushed by the rotating device, and then ground under hypergravity conditions, increasing the contact area between the steel slag and carbon dioxide, thus improving the carbon dioxide capture efficiency.

Description

Technical Field

[0001] This utility model relates to the field of industrial waste gas treatment technology, specifically to a carbon dioxide capture device based on steel slag grinding. Background Technology

[0002] With the acceleration of global industrialization, carbon dioxide emissions have increased dramatically, leading to serious environmental problems such as global warming. Therefore, carbon dioxide capture and storage (CCS) technology has become a hot research topic.

[0003] Currently, common carbon dioxide capture methods include chemical absorption and physical adsorption. However, these methods have some drawbacks. For example, chemical absorption requires a large amount of chemical absorbent, resulting in high costs, and there are issues with absorbent regeneration and corrosion. Physical adsorption has limited adsorption capacity and low adsorption efficiency.

[0004] Steel slag is one of the main solid wastes generated during steel production, and its output is enormous. Steel slag contains a large amount of alkaline oxides such as calcium and magnesium, which theoretically have good carbon dioxide adsorption potential. However, current methods of steel slag disposal mainly involve landfilling or simple reuse, which not only occupies a large amount of land resources but also may cause potential environmental pollution, while its carbon dioxide adsorption capacity is not fully utilized.

[0005] The shortcomings of existing steel slag carbon dioxide capture technology: In existing technologies for capturing carbon dioxide using steel slag, the large particle size and small surface area of ​​steel slag limit the contact area with carbon dioxide, resulting in slow reaction rates and low capture efficiency. Utility Model Content

[0006] In view of this, this utility model provides a carbon dioxide capture device based on steel slag grinding to solve the problem that in the prior art, the carbon dioxide capture scheme using steel slag has a large particle size and a small surface area, resulting in a limited contact area with carbon dioxide, which leads to a slow reaction rate and low capture efficiency.

[0007] This utility model embodiment provides a carbon dioxide capture device based on steel slag grinding, comprising:

[0008] The hypergravity generator consists of an outer shell, a rotating shaft, and a centrifugal disk.

[0009] The steel slag feeding device is located at the top of the outer casing;

[0010] The air intake device is located in the lower part of the reaction chamber of the hypergravity generator.

[0011] The air outlet pipe is located at the upper end of the hypergravity generator;

[0012] The grinding device is located on the inner wall of the reaction chamber of the hypergravity generator.

[0013] Optionally, the steel slag feeding device includes:

[0014] The hopper is installed at an angle at the upper end of the feed pipe;

[0015] A rotating device is installed in the feed pipe, and the rotation speed of the rotating device is controlled by a control valve.

[0016] The impact block is installed on the inner wall of the feed pipe.

[0017] Optionally, it also includes:

[0018] A hydraulic breaker is mounted on the surface of a rotating device.

[0019] Optionally, the surface of the centrifuge disc is provided with several protrusions and grooves.

[0020] Optionally, a drive unit is fixed to the bottom of the hypergravity generator and is used to drive the rotating shaft to rotate.

[0021] Optionally, the grinding apparatus includes:

[0022] Several grinding teeth are fixed on the inner wall of the reaction chamber of the supergravity generator.

[0023] Optionally, the air intake device includes:

[0024] The air intake pipe extends into the reaction chamber of the hypergravity generator through a through hole located on the lower side of the outer shell of the hypergravity generator.

[0025] Several nozzles are evenly arranged at the upper end of the air intake pipe located inside the reaction chamber of the hypergravity generator.

[0026] Optionally, the air intake pipe is annular and fixed to the inner wall of the reaction chamber of the hypergravity generator.

[0027] Optionally, it also includes:

[0028] At least one discharge device, consisting of a discharge pipe and a discharge valve, is located at the bottom of the gravity generator.

[0029] Optionally, the reaction chamber of the hypergravity generator is provided with an arc-shaped base that is convex upward in the center and concave downward around the perimeter; the discharge device is located in the edge area of ​​the bottom of the hypergravity generator.

[0030] The beneficial effects of this utility model are:

[0031] 1. This utility model provides a carbon dioxide capture device based on steel slag grinding. By efficiently grinding the steel slag in a hypergravity environment, the contact area between the steel slag and carbon dioxide is increased, thereby improving the carbon dioxide capture efficiency. Simultaneously, the resource utilization of the steel slag is achieved, reducing environmental pollution. The steel slag is initially crushed by a rotating device, and then ground under hypergravity conditions, increasing the contact area between the steel slag and carbon dioxide and improving the carbon dioxide capture efficiency.

[0032] 2. It realizes the resource utilization of steel slag, reduces the environmental pollution caused by the stockpiling and landfilling of steel slag, and at the same time reduces the cost of carbon dioxide capture.

[0033] 3. The device has a simple structure, is easy to operate, can run continuously, and is suitable for industrial applications. Attached Figure Description

[0034] The features and advantages of this utility model will be more clearly understood by referring to the accompanying drawings. The drawings are schematic and should not be construed as limiting the utility model in any way. In the drawings:

[0035] Figure 1 This diagram illustrates the structure of a carbon dioxide capture device based on steel slag grinding, according to an embodiment of the present invention.

[0036] Figure 2 This invention illustrates a structural diagram of a steel slag feeding device for a carbon dioxide capture device based on steel slag grinding, according to an embodiment of the present invention.

[0037] Figure 3 A centrifugal disc structure diagram of a carbon dioxide capture device based on steel slag grinding is shown in an embodiment of this utility model.

[0038] Figure 4 This diagram illustrates the upward movement of gas and the downward movement of steel slag in a carbon dioxide capture device based on steel slag grinding, according to an embodiment of the present invention. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] like Figure 1As shown, this utility model embodiment provides a carbon dioxide capture device based on steel slag grinding, including a hypergravity generator 100, a steel slag feeding device 200, an air inlet device 300, an air outlet pipe 400, and a grinding device 500. The hypergravity generator 100 consists of a shell 101, a rotating shaft 102, and a centrifugal disc 103. The steel slag feeding device 200 is located at the top of the shell 101. The air inlet device 300 is located in the lower region of the reaction chamber of the hypergravity generator 100. The air outlet pipe 400 is located at the upper end of the hypergravity generator 100. The grinding device 500 is located on the inner wall of the side of the reaction chamber of the hypergravity generator 100.

[0041] like Figure 2 As shown, the steel slag feeding device includes a hopper 201 inclinedly installed at the upper end of the feeding pipe, a rotating device 202 installed in the feeding pipe, and a control valve 203 controlling the rotation speed of the rotating device. An impact block 204 is installed on the inner wall of the feeding pipe. A crushing hammer 205 is installed on the surface of the rotating device 202. The hopper is used to store steel slag, and the crushing hammer on the rotating device can initially crush and transport the steel slag from the hopper to the high-gravity reaction chamber. The control valve controls the feeding speed of the steel slag.

[0042] The outer shell 101 is a sealed structure, forming a gravity reaction chamber inside. A rotating shaft 102 passes through the center of the outer shell 101 and can rotate at high speed. A centrifuge disk is fixed to the rotating shaft and located within the hypergravity reaction chamber. Figure 3 As shown, the surface of the centrifugal disc 103 is provided with several protrusions 1031 and grooves 1032 to enhance the grinding effect of steel slag under hypergravity environment.

[0043] As an optional implementation, the drive device 104 is fixed to the bottom of the hypergravity generating device 100 and is used to drive the rotating shaft 102 to rotate.

[0044] As an optional implementation, the grinding device 500 includes a plurality of grinding teeth fixed on the inner wall of the reaction chamber side of the hypergravity generating device 100. Under hypergravity conditions, the steel slag is thrown towards the inner wall of the reaction chamber under centrifugal force, interacting with the grinding teeth to achieve grinding of the steel slag and increase the contact area between the steel slag and carbon dioxide.

[0045] As an optional implementation, the air intake device includes an air intake pipe that extends into the reaction chamber of the hypergravity generator 100 through a through-hole located in the lower region of the outer shell. A plurality of nozzles 301 are evenly distributed at the upper end of the air intake pipe located inside the reaction chamber of the hypergravity generator. In a specific embodiment, the air intake pipe is annular and fixed to the inner wall of the reaction chamber of the hypergravity generator. The gas nozzles are distributed above the air intake pipe, allowing carbon dioxide gas to be evenly distributed within the hypergravity reaction chamber to ensure sufficient contact with the steel slag.

[0046] As an optional implementation, it also includes: at least one discharge device, consisting of a discharge pipe 105 and a discharge valve 106, disposed at the bottom of the hypergravity generating device 100.

[0047] like Figure 1 As shown, two discharge devices are symmetrically arranged at the bottom edge of the supergravity generator 100 to discharge the steel slag product after carbon dioxide capture. A discharge valve is installed on the discharge pipe to control the discharge speed of the product.

[0048] As an optional implementation, the reaction chamber of the hypergravity generator is provided with an arc-shaped base that is raised upward in the center and recessed downward around the perimeter; the discharge device is located in the edge area of ​​the bottom of the hypergravity generator.

[0049] In this embodiment, in conjunction with the previous embodiment, the drive device 104 is located at the central protrusion, while the discharge device is located around the downward-recessed perimeter to prevent steel slag products from accumulating around the rotating shaft.

[0050] The working principle of the carbon dioxide capture device based on steel slag grinding provided in this embodiment is as follows: The steel slag is initially crushed by a steel slag feeding device and transported to the hypergravity reaction chamber. Then, the hypergravity generator is activated, causing the rotating shaft to rotate at high speed, driving the centrifugal disc to generate a hypergravity environment. Under the action of centrifugal force, the steel slag is thrown towards the inner wall of the reaction chamber. During this process, the steel slag accelerates linearly along the direction of centrifugal force while colliding and rubbing against the protrusions and grooves on the centrifugal disc. Upon reaching the inner wall of the reaction chamber, the steel slag interacts with the grinding teeth fixed to the inner wall of the reaction chamber and is ground into fine particles. Simultaneously, carbon dioxide gas is transported into the hypergravity reaction chamber through a carbon dioxide intake device. The evenly distributed carbon dioxide gas comes into full contact with the ground steel slag, undergoing a chemical reaction to achieve carbon dioxide capture. Subsequently, under the combined action of centrifugal force and airflow (affected by the airflow generated by the entry of carbon dioxide gas), the steel slag... Figure 4 As shown, it continues to move downwards in a spiral along the inner wall of the reaction chamber until it is discharged from the outlet.

[0051] This invention provides a carbon dioxide capture device based on steel slag grinding. By efficiently grinding the steel slag in a hypergravity environment, the contact area between the steel slag and carbon dioxide is increased, thereby improving the capture efficiency. Simultaneously, it achieves resource utilization of the steel slag and reduces environmental pollution. The steel slag is initially crushed by a rotating device, and then ground under hypergravity conditions, increasing the contact area between the steel slag and carbon dioxide and improving the capture efficiency. Furthermore, it achieves resource utilization of the steel slag, reducing the environmental pollution caused by steel slag stockpiling and landfilling, and lowering the cost of carbon dioxide capture. The device provided by this invention has a simple structure, is easy to operate, can operate continuously, and is suitable for industrial applications.

[0052] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A carbon dioxide capture device based on steel slag grinding, characterized in that, include: The hypergravity generator consists of an outer shell, a rotating shaft, and a centrifugal disk. A steel slag feeding device is installed at the top of the outer casing; An air intake device is located in the lower region of the reaction chamber of the hypergravity generator; An exhaust pipe is located at the upper end of the hypergravity generator; The grinding device is located on the inner wall of the reaction chamber side of the supergravity generating device.

2. The carbon dioxide capture device based on steel slag grinding according to claim 1, characterized in that, The steel slag feeding device includes: The hopper is installed at an angle at the upper end of the feed pipe; A rotating device is installed in the feed pipe, and the rotation speed of the rotating device is controlled by a control valve. The impact block is disposed on the inner wall of the feed pipe.

3. The carbon dioxide capture device based on steel slag grinding according to claim 2, characterized in that, Also includes: A hydraulic breaker is mounted on the surface of the rotating device.

4. The carbon dioxide capture device based on steel slag grinding according to claim 1, characterized in that, The surface of the centrifuge disc is provided with several protrusions and grooves.

5. The carbon dioxide capture device based on steel slag grinding according to claim 1, characterized in that, A drive unit, fixed to the bottom of the hypergravity generator, is used to drive the rotating shaft to rotate.

6. The carbon dioxide capture device based on steel slag grinding according to claim 1, characterized in that, The grinding apparatus includes: Several grinding teeth are fixed on the inner wall of the reaction chamber side of the supergravity generating device.

7. The carbon dioxide capture device based on steel slag grinding according to claim 1, characterized in that, The air intake device includes: The air intake pipe extends into the reaction chamber of the hypergravity generator through a through hole located on the lower side of the outer shell of the hypergravity generator. Several nozzles are evenly arranged at the upper end of the air intake pipe located inside the reaction chamber of the supergravity generating device.

8. The carbon dioxide capture device based on steel slag grinding according to claim 7, characterized in that, The air intake pipe is ring-shaped and fixed to the inner wall of the reaction chamber of the hypergravity generator.

9. The carbon dioxide capture device based on steel slag grinding according to claim 1, characterized in that, Also includes: At least one discharge device, consisting of a discharge pipe and a discharge valve, is located at the bottom of the supergravity generating device.

10. The carbon dioxide capture device based on steel slag grinding according to claim 9, characterized in that, The reaction chamber of the hypergravity generator is provided with an arc-shaped base that is convex upward in the center and concave downward around the edges; the discharge device is located in the edge area of ​​the bottom of the hypergravity generator.

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