Steel slag mineralization, carbon sequestration and maintenance integrated equipment

By designing gear meshing and screw conveyor components, the problems of conveying carbon particles and utilizing carbon dioxide in steel slag mineralization and carbon fixation equipment are solved, achieving efficient steel slag treatment and carbon dioxide reaction, and reducing equipment accumulation and environmental pollution.

CN121869833APending Publication Date: 2026-04-17CHINA RAILWAY SEVENTH GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY SEVENTH GRP CO LTD
Filing Date
2025-11-24
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In existing integrated steel slag mineralization and carbon fixation equipment, carbon particles are difficult to transport, carbon dioxide is difficult to react completely and is prone to leakage, resulting in accumulation inside the equipment and environmental pollution.

Method used

The gear meshing connection design drives the ductile iron casing to rotate and works with the screw conveyor to achieve steel slag crushing and carbon dioxide mixing. The screw conveyor rotates to extract excess carbon dioxide, avoiding accumulation and leakage.

Benefits of technology

This improves the contact efficiency between steel slag and carbon dioxide, ensuring complete reaction of carbon dioxide, reducing the accumulation of carbon particles and environmental pollution, and achieving efficient steel slag mineralization and carbon dioxide utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses steel slag mineralization, carbon sequestration and maintenance integrated equipment, and relates to the technical field of steel slag treatment equipment. The steel slag mineralization, carbon sequestration and maintenance integrated equipment comprises a bottom seat, the carbon sequestration maintenance case is movably arranged on the inner side of the bottom seat; the emptying box is movably connected to the bottom of the carbon sequestration maintenance case; the integrated spheroidal graphite curing structure is mounted in the carbon sequestration curing machine box and extends into the emptying box; the integrated spheroidal graphite curing structure comprises a gear driving assembly which is mounted on the side surface of the bottom seat and is connected with the carbon sequestration curing machine box; the synchronous belt is connected with the gear driving assembly through a synchronous wheel; and the spheroidal graphite conveying assembly is connected with the synchronous belt through a synchronous wheel and extends into the carbon sequestration maintenance machine box and the emptying box. According to the invention, the rolling and moving of the steel slag, the extraction of redundant carbon dioxide gas and the automatic unloading operation of materials can be synchronously realized, and the automatic oxidation and treatment operation of the steel slag is realized.
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Description

Technical Field

[0001] This invention relates to the field of steel slag treatment equipment technology, specifically to an integrated equipment for steel slag mineralization, carbon fixation, and maintenance. Background Technology

[0002] Steel slag mineralization and carbon sequestration is a technology that combines steel slag with carbon dioxide through a chemical reaction to generate stable carbonate minerals, thereby achieving carbon sequestration and resource utilization.

[0003] The main component of steel slag is calcium oxide, which undergoes a carbonization reaction with carbon dioxide under weakly acidic, low-to-medium pressure conditions to produce stable minerals such as calcium carbonate. This process does not require high temperature and high pressure, has low energy consumption, and can directly utilize carbon dioxide from industrial waste gas.

[0004] Existing integrated curing equipment for treating steel slag waste generally requires the synergistic effect of mechanical activation and alkaline activation to activate silicate minerals in the steel slag, while simultaneously using carbon dioxide for mineralization curing to convert free CaO in the steel slag into... While carbon dioxide can improve the compressive strength of cementitious materials, it also achieves carbon fixation. However, in practice, after carbon dioxide is introduced into the integrated curing equipment to mineralize steel slag, a large number of carbon-fixed particles are formed. These particles have a large weight and are difficult to transport to the outside using traditional screw conveyors, leading to accumulation of carbon-fixed particles inside the equipment. Furthermore, some of the introduced carbon dioxide cannot react completely in one go and is released into the working environment along with the venting of carbon-fixed particles, making effective control of the introduced carbon dioxide difficult. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated equipment for the mineralization, carbon fixation, and curing of steel slag, in order to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This invention provides an integrated steel slag mineralization, carbon fixation, and curing device, comprising: a base; a carbon fixation and curing chamber movably disposed inside the base; a drain box movably connected to the bottom of the carbon fixation and curing chamber; and an integrated ductile iron curing structure installed inside the carbon fixation and curing chamber and extending into the drain box. The integrated ductile iron curing structure includes: a gear drive assembly installed on the side of the bottom seat and connected to the carbon fixation curing machine; a synchronous belt connected to the gear drive assembly via a synchronous pulley; a ductile iron conveying assembly connected to the synchronous belt via a synchronous pulley and extending into the carbon fixation curing machine and the emptying box; and a lead screw extraction assembly connected to the ductile iron conveying assembly and extending to the outside of the emptying box.

[0007] As a preferred embodiment of the present invention, the carbon fixation and curing machine includes: an input machine housing rotatably connected inside the bottom base; a feed nozzle communicating with the input machine housing; and a ductile iron housing rotatably disposed on the side of the input machine housing and movably disposed inside the bottom base. The bottom of the ductile iron casing is rotatably connected to a venting box, and the bottom of the venting box is connected to a venting nozzle.

[0008] As a preferred embodiment of the present invention, a carbon dioxide filling module is installed on the outer side of the top of the ductile ink generator box, and multiple carbon dioxide filling modules are provided. A gear drive assembly is installed on the outer side of the ductile ink generator box, and a ductile ink conveying assembly is movably arranged inside the ductile ink generator box. A synchronous belt is installed on the outer side of the input box.

[0009] As a preferred embodiment of the present invention, the gear drive assembly includes: a first drive source installed eccentrically on one side of the bottom seat; a rotating rod connected to the output end of the first drive source and movably disposed eccentrically inside the bottom seat; a drive gear connected to the rotating rod; an intermediate gear meshing with the drive gear and installed on the outside of the ductile iron casing; a movable gear meshing with the side of the intermediate gear; and a movable shaft connected to the movable gear and movably disposed on the side of the input casing.

[0010] In a preferred embodiment of the present invention, the movable shaft and the rotating rod are respectively disposed on the left and right sides of the input housing, and a synchronous belt is connected to the outer side of the bottom of the movable shaft via a synchronous pulley. The gear ratio of the intermediate gear, the drive gear, and the movable gear is 4:1:1.

[0011] As a preferred embodiment of the present invention, the ductile iron conveying assembly includes: a spiral intermediate rotating rod connected to the inner side of the synchronous belt via a synchronous pulley and movably connected to the input housing and the center of the ductile iron housing; a connecting rod installed at the bottom of the spiral intermediate rotating rod and rotatably connected to the emptying box; and a spiral auger installed on the outside of the connecting rod and movably disposed inside the emptying box. The bottom of the auger is connected to a lead screw extraction assembly.

[0012] As a preferred embodiment of the present invention, a cross bracket is provided on the outer side of the connection between the connecting rod and the spiral intermediate rotating rod. The cross bracket is installed inside the ductile iron casing, and screening screens are installed on the upper and lower sides inside the cross bracket.

[0013] As a preferred embodiment of the present invention, the lead screw extraction assembly includes: a side rotating rod installed at the bottom of the auger and movably connected to the outside of the venting box; a transmission belt connected to the outside of the side rotating rod via a synchronous pulley and movably disposed outside the venting box; a reciprocating lead screw connected to the inside of the transmission belt via a synchronous pulley and movably connected to the eccentric part of the outside of the venting box; a horizontal slider connected to the outside of the reciprocating lead screw via ball bearings and slidably connected to the outside of the venting box; a connecting rod installed on the side of the horizontal slider; a gas tank rotatably disposed on the side of the reciprocating lead screw and installed on one side of the bottom of the venting box; and a piston movably disposed inside the gas tank and connected to the connecting rod.

[0014] As a preferred embodiment of the present invention, a one-way gas valve is installed on one side of the bottom of the gas tank, and a gas venting valve is connected to the bottom of the gas tank. The gas venting valve is installed at the inner bottom of the venting box and extends to the outer side of the venting box.

[0015] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects: 1. In the integrated steel slag mineralization, carbon fixation, and curing equipment, when processing steel slag, the gear meshing design drives the ductile iron casing, which stores and processes the steel slag, to rotate. This causes the steel slag inside the casing to tumble. Simultaneously, it drives the rotating spiral shaft inside the casing, causing the steel slag and ductile iron blocks on its outer side to move. This coordinated action maximizes the number and frequency of contact between the ductile iron blocks and the steel slag, improving the ductile iron crushing effect. Furthermore, the rotation of the spiral shaft also drives the auger installed at its bottom to rotate, causing the crushed and screened steel slag to move horizontally, facilitating the movement and conveying of the steel slag and enabling its discharge. 2. In the integrated steel slag mineralization, carbon fixation, and curing equipment, during the steel slag processing, carbon dioxide gas is filled into the ductile iron casing storing the steel slag. This carbon dioxide gas, through contact with the steel slag, activates the silicate minerals within the slag, and, combined with the carbon dioxide gas, converts the free CaO in the steel slag into... This process enhances the compressive strength of cementitious materials while simultaneously achieving carbon fixation. Furthermore, carbon dioxide gas can be thoroughly mixed with steel slag, increasing the contact area between the two and improving the efficiency of the mineralization process. 3. In the integrated steel slag mineralization and carbon fixation equipment, when venting the treated steel slag mineralized particles, the force exerted by the rotating auger can extract carbon dioxide gas from the venting box via screw drive. This serves two purposes: firstly, it allows for the centralized extraction and storage of excess carbon dioxide; secondly, the force exerted during carbon dioxide extraction moves the steel slag mineralized particles, facilitating their movement into the venting nozzle and reducing the likelihood of residual particles accumulating inside the venting box. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0017] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall main view of the present invention; Figure 3 This is a schematic cross-sectional view of the entire structure of the present invention; Figure 4 This is a schematic diagram of the overall front cross-section of the present invention; Figure 5 This is the present invention. Figure 4 Enlarged structural diagram of region A in the middle; Figure 6 This is a schematic diagram of the connection between the gear drive assembly and the ductile iron conveying assembly of the present invention; Figure 7 This is a schematic diagram of the connection between the ductile iron conveying assembly and the lead screw extraction assembly of the present invention; Figure 8 This is a cross-sectional structural schematic diagram of the lead screw extraction assembly of the present invention; In the picture: 10. Base seat; 20. Carbon fixation and curing machine casing; 201. Input casing; 202. Feed nozzle; 203. Ductile iron casing; 2031. Carbon dioxide charging module; 30. Emptying box; 301. Emptying nozzle; 40. Integrated ductile iron curing structure; 401. Gear drive assembly; 402. Synchronous belt; 403. Ductile iron conveying assembly; 404. Screw extraction assembly; 4011, First drive source; 4012, Rotating rod; 4013, Drive gear; 4014, Intermediate gear; 4015, Movable gear; 4016, Movable shaft; 4031, Spiral intermediate rotating rod; 4032, Connecting rod; 40321, Cross support; 40322, Screening mesh; 4033, Spiral auger; 4041, Side rotating rod; 4042, Drive belt; 4043, Reciprocating lead screw; 4044, Horizontal slider; 4045, Connecting rod; 4046, Gas tank; 40461, One-way gas valve; 40462, Gas venting valve; 4047, Piston. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] Please see Figures 1-8 The integrated steel slag mineralization carbon fixation and curing equipment includes a base 10; a carbon fixation and curing housing 20 movably disposed inside the base 10; a venting box 30 movably connected to the bottom of the carbon fixation and curing housing 20; and an integrated ductile iron curing structure 40 installed inside the carbon fixation and curing housing 20 and extending into the venting box 30. The integrated ductile iron curing structure 40 includes: a gear drive assembly 401 installed on the side of the base 10 and connected to the carbon fixation and curing housing 20; a synchronous belt 402 connected to the gear drive assembly 401 via a synchronous pulley; a ductile iron conveying assembly 403 connected to the synchronous belt 402 via a synchronous pulley and extending into the carbon fixation and curing housing 20 and the venting box 30; and a screw extraction assembly 404 connected to the ductile iron conveying assembly 403 and extending to the outside of the venting box 30.

[0021] It should be noted that the interior of the carbon fixation curing machine 20 contains several ductile iron blocks.

[0022] The working principle described above is as follows: When processing steel slag, the slag is filled into the carbon fixation curing chamber 20, and the gear drive assembly 401 is activated, causing the middle part of the carbon fixation curing chamber 20 to rotate. This rotation, along with the ductile iron blocks in the middle part of the chamber, effectively crushes the steel slag, reducing its volume. Simultaneously, the gear drive assembly 401 also drives the synchronous belt 402, causing the ductile iron conveying assembly 403, connected to the inner side of the synchronous belt 402 via a synchronous pulley, to operate. This causes the ductile iron blocks on the outer side of the conveying assembly 403 to move, increasing the number of contacts between the ductile iron blocks and the steel slag. Furthermore, the ductile iron conveying assembly 403 also drives the screw extraction assembly 404, which extracts and moves the mineralized carbon-fixed particles inside the venting box 30, and also extracts excess carbon dioxide gas for convenient storage.

[0023] For details, please refer to the following: Figure 3 and Figure 4 The carbon fixation and curing machine housing 20 includes: an input housing 201 rotatably connected inside the bottom base 10; a feed nozzle 202 connected to the input housing 201; and a ductile iron housing 203 rotatably disposed on the side of the input housing 201 and movably disposed inside the bottom base 10, wherein the bottom of the ductile iron housing 203 is rotatably connected to a drain box 30, and the bottom of the drain box 30 is connected to a drain nozzle 301.

[0024] In this solution, a carbon dioxide charging module 2031 is installed on the outer side of the top of the ductile ink machine housing 203. Multiple carbon dioxide charging modules 2031 are provided. A gear drive assembly 401 is installed on the outer side of the ductile ink machine housing 203. A ductile ink conveying assembly 403 is movably arranged inside the ductile ink machine housing 203. A synchronous belt 402 is input to the outer side of the machine housing 201.

[0025] In the integrated steel slag mineralization, carbon fixation and curing equipment of the present invention, the carbon dioxide filling module 2031 is designed to fill the interior of the ductile iron casing 203 with the reacted carbon dioxide and react with the added steel slag.

[0026] For details, please refer to the following: Figure 6The gear drive assembly 401 includes: a first drive source 4011 installed eccentrically on one side of the base 10; a rotating rod 4012 connected to the output end of the first drive source 4011 and movably disposed eccentrically inside the base 10; a drive gear 4013 connected to the rotating rod 4012; an intermediate gear 4014 meshing with the drive gear 4013 and installed on the outside of the ductile iron housing 203; a movable gear 4015 meshing with the side of the intermediate gear 4014; and a movable shaft 4016 connected to the movable gear 4015 and movably disposed on the side of the input housing 201.

[0027] In this design, the movable shaft 4016 and the rotating rod 4012 are respectively located on the left and right sides of the input housing 201. The outer side of the bottom of the movable shaft 4016 is connected to the synchronous belt 402 through the synchronous pulley. The gear ratio of the intermediate gear 4014, the drive gear 4013 and the movable gear 4015 is 4:1:1.

[0028] In the integrated steel slag mineralization, carbon fixation, and curing equipment of the present invention, when the ductile iron mill housing 203 is rotated to ductile iron crush the steel slag inside the ductile iron mill housing 203, the first drive source 4011 is activated, driving the rotating rod 4012 connected to the output end of the first drive source 4011 to rotate, and driving the drive gear 4013 installed at the bottom of the rotating rod 4012 to rotate. When the drive gear 4013 rotates, the intermediate gear 4014 meshing with its side will rotate, driving the ductile iron mill housing 203 installed inside the intermediate gear 4014 to rotate, causing the steel slag inside the ductile iron mill housing 203 to tumble. At this time, when the intermediate gear 4014 rotates, it can also drive the movable gear 4015 meshing with its side to rotate, and drive the movable shaft 4016 connected to the side of the movable gear 4015 to rotate.

[0029] When the movable shaft 4016 rotates, the timing belt 402 connected to its bottom via the timing pulley will operate.

[0030] For details, please refer to the following: Figure 6 and Figure 7 The ductile iron conveying assembly 403 includes: a spiral intermediate rotating rod 4031 connected to the inside of the synchronous belt 402 via a synchronous pulley and movably connected to the center of the input housing 201 and the ductile iron housing 203; a connecting rod 4032 installed at the bottom of the spiral intermediate rotating rod 4031 and rotatably connected to the empty box 30; and a spiral auger 4033 installed on the outside of the connecting rod 4032 and movably disposed inside the empty box 30, wherein the bottom of the spiral auger 4033 is connected to a lead screw extraction assembly 404.

[0031] In this design, a cross bracket 40321 is provided on the outside of the connection between the connecting rod 4032 and the intermediate spiral rod 4031. The cross bracket 40321 is installed inside the ductile iron housing 203, and screening screens 40322 are installed on the upper and lower sides inside the cross bracket 40321.

[0032] In the integrated steel slag mineralization, carbon fixation, and curing equipment of the present invention, when the synchronous belt 402 operates, the spiral intermediate rotating rod 4031 connected to the synchronous pulley on its inner side rotates, causing the steel slag and ductile iron blocks set on the outer side of the spiral intermediate rotating rod 4031 to tumble and crush the steel slag. The rotation of the spiral intermediate rotating rod 4031, in turn, causes the connecting rod 4032 installed at its bottom to rotate, and causes the spiral auger 4033 installed on the outer side of the connecting rod 4032 to rotate, thereby conveying and moving the material inside the empty box 30.

[0033] It should be noted that the 40322 screening screen is designed to screen the steel slag after ductile iron is crushed.

[0034] For details, please refer to the following: Figure 7 and Figure 8 The lead screw extraction assembly 404 includes: a side rotating rod 4041 installed at the bottom of the auger 4033 and movably connected to the outside of the venting box 30; a transmission belt 4042 connected to the outside of the side rotating rod 4041 via a synchronous pulley and movably disposed on the outside of the venting box 30; a reciprocating lead screw 4043 connected to the inside of the transmission belt 4042 via a synchronous pulley and movably connected to the eccentric part of the outside of the venting box 30; a horizontal slider 4044 connected to the outside of the reciprocating lead screw 4043 via ball bearings and slidably connected to the outside of the venting box 30; a connecting rod 4045 installed on the side of the horizontal slider 4044; a gas tank 4046 rotatably disposed on the side of the reciprocating lead screw 4043 and installed on one side of the bottom of the venting box 30; and a piston 4047 movably disposed inside the gas tank 4046 and connected to the connecting rod 4045.

[0035] In this design, a one-way gas valve 40461 is installed on one side of the bottom of the gas tank 4046, and a gas vent valve 40462 is connected to the bottom of the gas tank 4046. The gas vent valve 40462 is installed at the bottom inside the venting box 30 and extends to the outside of the venting box 30.

[0036] In the integrated steel slag mineralization, carbon fixation, and curing equipment of the present invention, when the spiral auger 4033 rotates, the side rotating rod 4041 connected to its bottom rotates, driving the transmission belt 4042 connected to the outer side of the bottom of the side rotating rod 4041 via a synchronous pulley. When the transmission belt 4042 is in operation, the reciprocating screw 4043 connected to the inner side via a synchronous pulley rotates, driving the horizontal slider 4044 connected to the outer side of the reciprocating screw 4043 via ball bearings to reciprocate horizontally. This causes the piston 4047 mounted on the side of the horizontal slider 4044 via a connecting rod 4045 to reciprocate (horizontally) inside the gas tank 4046, extracting gas from inside the gas tank 4046 and from the side of the piston 4047.

[0037] It should be noted that the carbon dioxide gas inside the venting box 30 can be transferred to the inside of the gas tank 4046 through the one-way gas valve 40461, and the carbon dioxide gas can be transferred and stored inside the tank through the gas venting valve 40462 connected to the bottom of the gas tank 4046, so as to realize the storage of excess carbon dioxide.

[0038] Furthermore, the power generated during the extraction of carbon dioxide gas can be used to extract and move particles at the bottom of the venting box 30, effectively preventing solid carbon particles from accumulating inside the venting box 30.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

[0040] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention.

[0041] Therefore, any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solution and inventive concept of this invention, should be covered within the protection scope of this invention.

Claims

1. An integrated equipment for the mineralization, carbonization, and curing of steel slag, characterized in that, include: Bottom base (10); carbon fixation curing machine box (20) movably disposed inside the bottom base (10); vent box (30) movably connected to the bottom of the carbon fixation curing machine box (20); integrated ductile iron curing structure (40) installed inside the carbon fixation curing machine box (20) and extending into the vent box (30). The integrated ductile iron curing structure (40) includes: a gear drive assembly (401) installed on the side of the bottom seat (10) and connected to the carbon fixation curing machine (20); a synchronous belt (402) connected to the gear drive assembly (401) via a synchronous pulley; a ductile iron conveying assembly (403) connected to the synchronous belt (402) via a synchronous pulley and extending into the carbon fixation curing machine (20) and the empty box (30); and a screw extraction assembly (404) connected to the ductile iron conveying assembly (403) and extending to the outside of the empty box (30).

2. The integrated equipment for steel slag mineralization, carbon sequestration, and curing according to claim 1, characterized in that: The carbon fixation and curing machine box (20) includes: an input box (201) rotatably connected inside the bottom seat (10); a feed nozzle (202) communicating with the input box (201); and a ductile iron box (203) rotatably disposed on the side of the input box (201) and movably disposed inside the bottom seat (10). The bottom of the ductile iron housing (203) is rotatably connected to a drain box (30), and the bottom of the drain box (30) is connected to a drain nozzle (301).

3. The integrated equipment for steel slag mineralization, carbon sequestration, and curing according to claim 2, characterized in that: A carbon dioxide filling module (2031) is installed on the outer side of the top of the ductile ink machine housing (203). Multiple carbon dioxide filling modules (2031) are provided. A gear drive assembly (401) is installed on the outer side of the ductile ink machine housing (203). A ductile ink conveying assembly (403) is movably arranged inside the ductile ink machine housing (203). A synchronous belt (402) is located on the outer side of the input housing (201).

4. The integrated equipment for steel slag mineralization, carbon sequestration, and curing according to claim 3, characterized in that: The gear drive assembly (401) includes: a first drive source (4011) installed eccentrically on one side of the bottom seat (10); a rotating rod (4012) connected to the output end of the first drive source (4011) and movably disposed eccentrically inside the bottom seat (10); a drive gear (4013) connected to the rotating rod (4012); an intermediate gear (4014) meshing with the drive gear (4013) and installed on the outside of the ductile iron housing (203); a movable gear (4015) meshing with the side of the intermediate gear (4014); and a movable shaft (4016) connected to the movable gear (4015) and movably disposed on the side of the input housing (201).

5. The integrated equipment for steel slag mineralization, carbon sequestration, and curing according to claim 4, characterized in that: The movable shaft (4016) and the rotating rod (4012) are respectively located on the left and right sides of the input housing (201). The outer side of the bottom of the movable shaft (4016) is connected to a synchronous belt (402) via a synchronous pulley. The gear ratio of the intermediate gear (4014), the drive gear (4013), and the movable gear (4015) is 4:1:

1.

6. The integrated equipment for steel slag mineralization, carbon sequestration, and curing according to claim 3, characterized in that: The ductile iron conveying assembly (403) includes: a spiral intermediate rotating rod (4031) connected to the inside of the synchronous belt (402) via a synchronous pulley and movably connected to the center of the input housing (201) and the ductile iron housing (203); a connecting rod (4032) installed at the bottom of the spiral intermediate rotating rod (4031) and rotatably connected to the empty box (30); and a spiral auger (4033) installed on the outside of the connecting rod (4032) and movably disposed inside the empty box (30). The bottom of the spiral auger (4033) is connected to a lead screw extraction assembly (404).

7. The integrated equipment for steel slag mineralization, carbon sequestration, and curing according to claim 6, characterized in that: A cross bracket (40321) is provided on the outside of the connection between the connecting rod (4032) and the spiral intermediate rotating rod (4031). The cross bracket (40321) is installed inside the ductile iron housing (203). Screening screens (40322) are installed on the upper and lower sides inside the cross bracket (40321).

8. The integrated equipment for steel slag mineralization, carbon sequestration, and curing according to claim 6, characterized in that: The lead screw extraction assembly (404) includes: a side rotating rod (4041) installed at the bottom of the auger (4033) and movably connected to the outside of the vent box (30); a transmission belt (4042) connected to the outside of the side rotating rod (4041) via a synchronous pulley and movably disposed on the outside of the vent box (30); a reciprocating lead screw (4043) connected to the inside of the transmission belt (4042) via a synchronous pulley and movably connected to the eccentric part of the outside of the vent box (30); a horizontal slider (4044) connected to the outside of the reciprocating lead screw (4043) via ball bearings and slidably connected to the outside of the vent box (30); a connecting rod (4045) installed on the side of the horizontal slider (4044); a gas tank (4046) rotatably disposed on the side of the reciprocating lead screw (4043) and installed on one side of the bottom of the vent box (30); and a piston (4047) movably disposed inside the gas tank (4046) and connected to the connecting rod (4045).

9. The integrated equipment for steel slag mineralization, carbon sequestration, and curing according to claim 8, characterized in that: A one-way gas valve (40461) is installed on one side of the bottom of the gas tank (4046), and a gas vent valve (40462) is connected to the bottom of the gas tank (4046). The gas vent valve (40462) is installed at the bottom of the vent box (30) and extends to the outside of the vent box (30).