Preparation device and preparation method of industrial waste-based geopolymer

Abstract

The invention relates to the technical field of industrial waste, in particular to a preparation device and method for industrial waste based geopolymer, the preparation device comprises a shell and a controller, a driving cavity is formed in the shell, a motor is arranged in the driving cavity, and a first gear is coaxially and fixedly connected to an output shaft of the motor; a first connecting rod is rotatably connected to the first connecting rod; a third connecting rod is hinged to the second connecting rod; a first push rod is hinged to one end of the third connecting rod; a second push rod is rotatably connected to the bottom end of the first push rod; an output shaft of the motor is coaxially and fixedly connected with a stirring assembly. According to the invention, the milling plate and the stirring assembly are integrated in the shell and are driven by the motor as a driving force, so that the technological process is simplified, the cost is reduced and the efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of industrial waste, and in particular to a device and a method for preparing an industrial waste-based geopolymer. Background Art

[0002] With the rapid development of industry, a large amount of industrial waste is generated. If these wastes are not properly handled, they will not only occupy a large amount of land resources, but also pollute the surrounding environment. However, these wastes often contain rich mineral resources, such as silicon, aluminum, etc., which have potential utilization value. Therefore, geopolymers prepared from industrial wastes came into being.

[0003] Geopolymer is a new type of non-cement-based green inorganic mortar material. Its raw materials mainly come from natural minerals or industrial wastes rich in silicon and aluminates, such as kaolin, slag, fly ash, etc. These raw materials are prepared by chemical reaction under the action of alkaline activators (such as NaOH, sodium silicate, etc.). Geopolymer has the advantages of fast hardening and early strength, good high temperature resistance, and strong corrosion resistance. It is regarded as one of the most promising cement substitutes. The raw materials of geopolymer come from a wide range of sources, including slag, fly ash, blast furnace slag, steel slag, aluminum ash and other industrial wastes. These wastes have been effectively utilized in the preparation process of geopolymers, which not only solves the problem of waste disposal, but also reduces production costs.

[0004] Usually, in the process of preparing geopolymers from industrial waste, grinding and stirring are required to fully mix and react different industrial waste powders with activators and cement clinker. In the existing industrial waste-based geopolymer preparation devices, grinding and stirring are usually performed using two different devices (generally, these devices are composed of a shell, a controller and other actuators), which is cumbersome and has high labor costs. Therefore, it is necessary to propose a preparation device and a preparation method for industrial waste-based geopolymers, which can effectively reduce costs and improve preparation efficiency. Summary of the invention

[0005] To solve the above problems, the present invention provides a device and method for preparing industrial waste-based geopolymers, which integrates a grinding plate and a stirring assembly into a shell and uses a motor as the driving force for both, thereby simplifying the process, reducing costs and improving efficiency.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a preparation device and preparation method of industrial waste-based geopolymer, comprising a housing and a controller, a driving chamber is provided inside the housing, a motor and a first connecting rod are provided in the driving chamber, the motor is electrically connected to the controller, the motor output shaft is coaxially fixedly connected to the first gear, the first connecting rod is embedded with a first rotating wheel coaxially and eccentrically fixedly connected to the motor output shaft, and the first gear is located on the left side of the first rotating wheel, and a second connecting rod is hinged on the top of the first connecting rod;

[0007] A first chamber is provided inside the shell and is located above the driving chamber. The top end of the second connecting rod passes through the top wall of the driving chamber and extends into the first chamber and is hinged with a third connecting rod. The second connecting rod is slidably matched with the shell. A limit assembly for limiting the displacement of the third connecting rod is provided in the first chamber.

[0008] A second chamber is provided inside the shell and is located on the side of the first chamber. One end of the third connecting rod is away from the second connecting rod and extends through the side wall of the first chamber into the second chamber and is hinged to the first push rod in a vertical direction. The bottom end of the first push rod is rotatably connected to the second push rod.

[0009] A third chamber is provided inside the shell and is located below the second chamber. The bottom end of the second push rod passes through the bottom wall of the second chamber and extends into the third chamber and is fixedly connected to a grinding plate. A fourth chamber is provided inside the shell and is located below the first chamber and on the side of the driving chamber.

[0010] A conveying port connected to the fourth chamber and arranged obliquely is opened near the bottom of the side wall of the third chamber; a stirring assembly is coaxially fixedly connected to the motor output shaft, and one end of the stirring assembly passes through the side wall of the driving chamber and extends into the fourth chamber.

[0011] The technical principle of the above scheme is as follows: the raw material is squeezed and crushed by the repeated up and down movement of the push grinding plate in the second chamber, and the friction between it and the raw material is further increased by its rotation, thereby further improving the grinding efficiency. The ground raw material powder is then put into the first chamber through the conveying port, and the raw material mixture is stirred by the stirring assembly.

[0012] The above scheme has the following beneficial effects:

[0013] 1. Compared with the traditional preparation device, this solution uses a motor to drive the stirring assembly for mixing and stirring, and also uses a multi-link mechanism to drive the push grinding plate, so as to grind and crush the industrial waste raw materials, making the entire preparation process more continuous and efficient, and making the entire preparation process mechanized and semi-automated, reducing manpower requirements and improving the production efficiency of industrial waste-based geopolymers.

[0014] 2. This solution can minimize energy consumption and noise pollution by precisely controlling the speed and working time of the motor and optimizing the motion trajectory of the connecting rod mechanism. It also helps to realize the resource utilization of industrial waste and is in line with the concept of sustainable development.

[0015] 3. In this solution, the device is divided into multiple chambers, each of which has different functions (such as stirring, pushing, grinding, etc.). This design makes the device compact, highly integrated, and easy to manage and maintain. At the same time, the material transfer between different chambers is achieved through carefully designed channels, reducing the risk of material loss and contamination.

[0016] Furthermore, a first feed port communicating with the third chamber is provided on the shell surface; a discharge port communicating with the fourth chamber is provided at the lower part of the shell; and a second feed port communicating with the fourth chamber is provided at the upper part of the shell.

[0017] Beneficial effect: The communication design between the first feed port and the second chamber enables the raw materials to smoothly enter the second chamber for preliminary physical or chemical treatment. This design helps to ensure the continuity and stability of the materials during the preparation process.

[0018] Furthermore, the stirring assembly includes a rotating shaft coaxially fixedly connected to the motor output shaft, and the rotating shaft extends to the fourth chamber through the side wall of the driving chamber away from the motor at one end and is fixedly connected to an L-shaped stirring rod.

[0019] Beneficial effects: The connection between the second feed port and the first chamber provides an additional material inlet for the preparation process, which allows the user to add different raw materials or auxiliary agents as needed, thereby increasing the flexibility and versatility of the preparation process. The connection design between the discharge port and the first chamber allows the processed geopolymer to be easily discharged from the device. This design simplifies the discharge process and improves production efficiency.

[0020] Furthermore, a solenoid valve is provided inside the second discharge port, and the solenoid valve is electrically connected to the controller.

[0021] Beneficial effects: The precise control function of the solenoid valve makes the discharging process more accurate and reliable. By adjusting the opening and closing time and frequency of the solenoid valve through the controller, the discharging amount and discharging speed of the geopolymer can be accurately controlled to meet the specific needs of the production process.

[0022] Furthermore, a filter screen is arranged in the conveying port; the specification of the filter screen is 100-150 meshes.

[0023] Beneficial effects: The filter can effectively screen and purify the industrial waste powder entering the first chamber from the second chamber. At the same time, the 100-150 mesh specification enables it to intercept particles and impurities of a certain size, ensuring that the industrial waste powder entering the first chamber is purer and more uniform, which is beneficial to the subsequent mixing and excitation to improve the quality and stability of the final product.

[0024] Furthermore, the bottom walls of the fourth chamber and the third chamber are both inclined; the inclination of the bottom of the third chamber is the same as the inclination of the conveying port; the bottom of the grinding plate is an inclined surface, and the inclination of the bottom surface of the grinding plate is the same as the inclination of the bottom of the third chamber.

[0025] Beneficial effects: The inclined bottom wall design facilitates the natural flow of materials in the chamber. Under the action of gravity, the materials can slide down smoothly along the inclined bottom wall, reducing the retention time and accumulation of materials in the chamber.

[0026] Furthermore, shielding curtains are provided inside the first feed inlet and the second feed inlet.

[0027] Beneficial effects: The setting of the shielding curtain can effectively prevent operators or other personnel from accidentally contacting the materials or mechanical parts inside the feed port, thereby reducing safety hazards during operation. The shielding curtain can block external dust, impurities and other pollutants from entering the feed port, ensuring the quality of the materials entering the equipment, or preventing the possibility of industrial waste in the chamber splashing out through the first feed port during the grinding process.

[0028] Furthermore, the diameter of the first push rod is smaller than the diameter of the second push rod; and the connection between the second push rod and the housing is a threaded connection.

[0029] Beneficial effect: The design that the diameter of the first push rod is smaller than the diameter of the second push rod enables the push rod to rotate during the downward movement, thereby driving the grinding plate to rotate and further improving the grinding efficiency; at the same time, the design that the diameter of the first push rod is smaller than the diameter of the second push rod ensures that the first push rod will not contact the bottom wall of the second chamber during the downward movement, thereby limiting the movement of the second push rod.

[0030] Furthermore, the limiting assembly includes a first gear meshing with a second gear arranged in the first chamber, the second gear has a coaxial rotation center and is eccentrically connected to a second rotating wheel, the second rotating wheel is outer-mounted with a rotating ring, and the rotating ring is hinged on the third connecting rod.

[0031] Beneficial effect: The design of hingedly connecting the rotating wheel to the third connecting rod can not only provide a fulcrum for the third connecting rod to form a lever structure, so that the two ends of the third connecting rod can move in a related manner, but also the second rotating wheel can move relative to the rotating ring, so that the fulcrum can move accordingly with the force applied to the third connecting rod, thereby causing a certain change in the fulcrum position, and thereby making the first push rod hinged to the third connecting rod move only in the vertical direction.

[0032] Further, the steps are as follows:

[0033] Step 1: grinding raw materials, feeding the prepared various industrial wastes into the third chamber through the first feed port, and then grinding the raw materials through the rotation and extrusion of the push grinding plate to form mixed powder;

[0034] Step 2: Mixing and exciting: the mixed powder is screened through the filter screen and enters the fourth chamber along the conveying port, and then the alkaline activator and cement clinker are added into the first chamber through the second feeding port, water is added, and the mixture is stirred by an L-shaped stirring rod to form a cement mixture;

[0035] Step three, drying and demoulding, pour the stirred cement mixture into the prepared mold, and dehydrate and air-dry at room temperature. After completion of drying, demoulding is performed to form the final industrial waste-based geopolymer.

[0036] Beneficial effects: The ground mixed powder has a more uniform particle size, which is conducive to mixing and reaction in subsequent steps, converting industrial waste into valuable resources, and helping to reduce environmental pollution and waste accumulation. Alkaline activators can stimulate the potential activity in industrial waste, causing it to react chemically with cement clinker to produce a cement mixture with excellent performance. Through reasonable proportioning and mixing, the strength and durability of the cement mixture can be significantly improved, and the cost of raw materials for cement production can be reduced. At the same time, the use of alkaline activators and cement clinker for mixing can reduce energy consumption and carbon emissions in traditional cement production.

[0037] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A front cross-sectional view of an embodiment of a device for preparing industrial waste-based geopolymers according to the present invention;

[0039] Figure 2 A side cross-sectional view of an embodiment of a device for preparing industrial waste-based geopolymers according to the present invention;

[0040] Figure 3A front cross-sectional view of an embodiment of a device for preparing industrial waste-based geopolymers according to the present invention;

[0041] Figure 4 The figure is a schematic flow chart of the method for preparing geopolymers from industrial wastes according to the present invention.

[0042] The figure marks in the drawings of the specification include: 1. shell; 2. second chamber; 3. first push rod; 4. second push rod; 5. first feed port; 6. grinding plate; 7. rotating shaft; 8. third chamber; 9. filter screen; 10. fourth chamber; 11. L-shaped stirring rod; 12. discharge port; 13. second feed port; 14. second connecting rod; 15. first chamber; 16. second gear; 17. second rotating wheel; 18. third connecting rod; 19. driving chamber; 20. motor; 21. first gear; 22. first connecting rod; 23. first rotating wheel. DETAILED DESCRIPTION

[0043] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] The following is further described in detail through specific implementation methods:

[0047] Embodiment 1:

[0048] As attached Figure 1, Figure 2 and Figure 3 As shown: a preparation device for industrial waste-based geopolymers, including a housing 1 and a controller, wherein a driving chamber 19 is provided inside the housing 1, wherein a motor 20 and a first connecting rod 22 are screwedly connected in the driving chamber 19, wherein the motor 20 is electrically connected to the controller, wherein the output shaft of the motor 20 is coaxially keyed to a first gear 21, wherein the first connecting rod 22 is embedded with a first rotating wheel 23 which is coaxial with the output shaft of the motor 20 and eccentrically fixedly connected, wherein the first rotating wheel 23 is rotatably connected to the first connecting rod 22 through a bearing, wherein the first gear 21 is located on the left side of the first rotating wheel 23, and wherein the top of the first connecting rod 22 is hinged to a second connecting rod 14;

[0049] A first chamber 15 is provided inside the shell 1 and is located above the driving chamber 19. The top end of the second connecting rod 14 passes through the top wall of the driving chamber 19 and extends into the first chamber 15 and is hinged with a third connecting rod 18. The second connecting rod 14 is slidably matched with the shell 1. A limit assembly for limiting the displacement of the third connecting rod 18 is provided in the first chamber 15. A second chamber 2 is provided inside the shell 1 and is located on the side of the first chamber 15. One end of the third connecting rod 18 away from the second connecting rod 14 passes through the first chamber 15 and extends into the second chamber 2 and is hinged with a first push rod 3 in a vertical direction. The bottom end of the first push rod 3 is rotatably connected with a second push rod 4.

[0050] A third chamber 8 is provided inside the shell 1 and is located below the second chamber 2. The bottom end of the second push rod 4 passes through the bottom wall of the second chamber 2 and extends into the third chamber 8 and is welded with a grinding plate 6. The bottom of the grinding plate 6 is an inclined surface, and the bottom of the grinding plate 6 is a frosted surface to increase the friction during grinding, thereby improving the grinding efficiency; the diameter of the first push rod 3 is smaller than the diameter of the second push rod 4; the second push rod 4 is threadedly connected to the shell 1, and the bottom walls of the fourth chamber 10 and the third chamber 8 are both inclined, and the inclination of the bottom surface of the grinding plate 6 is the same as the inclination of the bottom of the third chamber 8.

[0051] A conveying port connected to the fourth chamber 10 and arranged obliquely is opened on the side wall of the third chamber 8 near its bottom. A filter screen 9 is screwed in the conveying port. The filter screen 9 has a specification of 100-150 mesh to ensure that the particle size of the industrial waste powder entering the first chamber 10 is uniform to improve the efficiency of the subsequent polymerization reaction and improve the quality of the final product. The inclination of the bottom of the second chamber 8 is the same as the inclination of the conveying port; the output shaft of the motor 20 is coaxially fixedly connected to the stirring assembly, and one end of the stirring assembly extends through the side wall of the drive chamber 19 to the fourth chamber 10; the limiting assembly includes a first gear 21 meshing with a second gear 16 rotatably connected to the first chamber 15, the second gear 16 has a coaxial rotation center and is eccentrically rotatably connected to the second rotating wheel 17, the second rotating wheel 17 is covered with a rotating ring, and the connection between the rotating ring and the second rotating wheel 17 is rotatably connected through a bearing, and the rotating ring is hinged on the third connecting rod 18.

[0052] The surface of the housing 1 is provided with a first feed port 5 communicating with the third chamber 8; the lower part of the housing 1 is provided with a discharge port 12 communicating with the fourth chamber 10; the lower part of the housing 1 is provided with a second feed port 13 communicating with the fourth chamber 10. A solenoid valve is provided inside the second discharge port 12, and the solenoid valve is electrically connected to the controller. The first feed port 5 and the second feed port 13 are both bonded with shielding curtains.

[0053] The stirring assembly includes a rotating shaft 7 coaxially bolted to the output shaft of the motor 20 . One end of the rotating shaft 7 away from the motor 20 extends through the side wall of the driving chamber 19 to the fourth chamber 10 and is bolted to an L-shaped stirring rod 11 .

[0054] The specific implementation process is as follows: first, the prepared industrial waste raw materials are put into the second cavity through the first feed port 5, and then the motor 20 is started. At this time, the output shaft of the motor 20 will drive the first gear 21 and the first rotating wheel 23 coaxially connected thereto to rotate, and at the same time, the first rotating wheel 23 is rotatably connected to the first connecting rod 22, and the top end of the first connecting rod 22 extends into the first cavity 15 and is hinged to the second connecting rod 14. At the same time, since the second connecting rod 14 is slidably connected to the raised part inside the shell 1 (that is, the movement direction of the second connecting rod 14 is limited to move only in the vertical direction), a crank slider structure is formed, so that the first connecting rod 22 drives the second connecting rod 14 to reciprocate in the vertical direction; the second connecting rod 14 is hinged to the third connecting rod 18 at one end away from the first connecting rod 22, and a rotating ring hinged to the middle part of the third connecting rod is provided in the first cavity 15, and the rotating ring outer sleeve is connected to the second rotating wheel 17 and the two can rotate relative to each other, and the second rotating wheel 17 is eccentrically rotatably connected to the center of the second gear 16 On the axis, thereby providing a movable fulcrum for the third connecting rod 18, and then when the second connecting rod 14 reciprocates up and down, the third connecting rod 18 is driven to move up and down together with its hinged end. Since the position of the above-mentioned fulcrum can be movable, the position of the fulcrum can be changed accordingly, thereby forming one of the conditions for the subsequent up and down reciprocating movement of the first push rod 3; when the third connecting rod 18 moves, one end thereof is hinged to the first push rod 3 in the second chamber 2, and the bottom of the first push rod 3 is rotated to connect the second push rod 4, and the second push rod 4 extends into the third chamber 8 through the bottom of the second chamber 2, and the connection between the second push rod 4 and the shell 1 is a threaded connection, so that when the third connecting rod 18 moves, it drives the first push rod 3 to move, and then drives the second push rod 4 to reciprocate in the vertical direction, and during the movement, the second push rod 4 rotates, and then the grinding plate 6 in the third chamber 8 moves up and down while rotating, thereby squeezing and crushing the industrial waste raw materials while frictionally crushing them, further accelerating the grinding efficiency.

[0055] When the raw materials are ground and smaller than the aperture of the filter screen 9, the powders are passed through the filter screen 9 through the inclined bottom of the third chamber 8 and the continuous operation of the grinding plate 6, and enter the interior of the fourth chamber 10 along the inclined conveying port. At the same time, alkaline activator and cement clinker are added to the fourth chamber 10 through the second feed port 13, wherein the alkaline activator can be selected according to the actual situation, such as sodium hydroxide or sodium silicate, etc., and then a proper amount of water is heated, and then the motor 20 drives the rotating shaft 7, and the rotating shaft 7 drives the L-shaped stirring rod 11 to fully stir the mixture and accelerate its reaction. After the stirring is completed, the solenoid valve is opened, and the stirred industrial waste-based geopolymer is discharged through the discharge port 12 and collected, and then the mold is shaped and air-dried and demolded, and finally tested.

[0056] In the preparation process, in order to reduce the splashing of the materials through the first feed port 5 and the second feed port when the materials are stirred or ground, shielding curtains are provided inside them to shield them and improve safety.

[0057] Embodiment 2:

[0058] The difference from Example 1 is that Figure 4 As shown, a method for preparing an industrial waste-based geopolymer comprises the following steps:

[0059] Step 1: grinding raw materials. The prepared various industrial waste raw materials are fed into the third chamber 8 through the first feed port 5. The push grinding plate 6 is then used to move up and down to squeeze and crush the raw materials. At the same time, the push grinding plate 6 is used to rotate so that the bottom frosted surface rubs against the raw materials, thereby grinding the industrial waste raw materials to form mixed powder.

[0060] Step 2: Mixing and exciting. A uniform mixed powder is screened out by a filter 9 and enters the fourth chamber 10 through a conveying port. Then, an alkaline activator and cement clinker are added into the fourth chamber, water is added, and the mixture is stirred by an L-shaped stirring rod 11 to accelerate the polymerization of the raw materials and form a cement mixture.

[0061] Step three, drying and demoulding, pour the stirred cement mixture into the prepared mold and dehydrate and air-dry at room temperature. After completion and drying, demoulding is carried out to form the final industrial waste-based geopolymer, and finally performance testing is carried out.

[0062] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A device for preparing geopolymers from industrial waste, comprising a housing (1) and a controller, characterized in that: A driving chamber (19) is provided inside the housing (1), a motor (20) and a first connecting rod (22) are provided inside the driving chamber (19), the motor (20) is electrically connected to the controller, the output shaft of the motor (20) is coaxially fixedly connected to a first gear (21), the first connecting rod (22) is embedded with a first rotating wheel (23) coaxially fixedly connected to the output shaft of the motor (20), the first gear (21) is located on the left side of the first connecting rod (22), and the top of the first connecting rod (22) is hinged with a second connecting rod (14); A first chamber (15) located above the driving chamber (19) is provided inside the housing (1); the top end of the second connecting rod (14) passes through the top wall of the driving chamber (19) and extends into the first chamber (15) and is hingedly connected to a third connecting rod (18); the second connecting rod (14) is slidably matched with the housing (1); and a limit assembly for limiting the displacement of the third connecting rod (18) is provided in the first chamber (15); A second chamber (2) is provided inside the housing (1) and is located on the side of the first chamber (15); an end of a third connecting rod (18) away from the second connecting rod (14) passes through the side wall of the first chamber (15) and extends into the second chamber (2) and is hingedly connected to a first push rod (3) in a vertical direction; and the bottom end of the first push rod (3) is rotatably connected to a second push rod (4); A third chamber (8) is provided inside the housing (1) and is located below the second chamber (2); the bottom end of the second push rod (4) passes through the bottom wall of the second chamber (2) and extends into the third chamber (8) and is fixedly connected to a grinding plate (6); a fourth chamber (10) is provided inside the housing (1) and is located below the first chamber (15) and on the side of the driving chamber (19); A conveying port connected to the fourth chamber (10) and arranged obliquely is provided on the side wall of the third chamber (8) near its bottom; a stirring assembly is coaxially fixedly connected to the output shaft of the motor (20), and one end of the stirring assembly passes through the side wall of the driving chamber (19) and extends into the fourth chamber (10).

2. The device for preparing industrial waste-based geopolymers according to claim 1, characterized in that: A first feed port (5) communicating with the third chamber (8) is provided on the surface of the shell (1); a discharge port (12) communicating with the fourth chamber (10) is provided at the lower portion of the shell (1); and a second feed port (13) communicating with the fourth chamber (10) is provided at the upper portion of the shell (1).

3. The device for preparing industrial waste-based geopolymers according to claim 2, characterized in that: The stirring assembly comprises a rotating shaft (7) coaxially fixedly connected to the output shaft of the motor (20); one end of the rotating shaft (7) away from the motor (20) passes through the side wall of the driving chamber (19) and extends to the fourth chamber (10) and is fixedly connected to an L-shaped stirring rod (11).

4. The device for preparing industrial waste-based geopolymers according to claim 3, characterized in that: A solenoid valve is provided inside the second discharge port (12), and the solenoid valve is electrically connected to the controller.

5. The device for preparing industrial waste-based geopolymers according to claim 4, characterized in that: A filter screen (9) is arranged in the conveying port; the specification of the filter screen (9) is 100-150 meshes.

6. The device for preparing industrial waste-based geopolymers according to claim 5, characterized in that: The bottom walls of the fourth chamber (10) and the third chamber (8) are both inclined; the inclination of the bottom of the third chamber (8) is the same as the inclination of the conveying port; the bottom of the grinding plate (6) is an inclined surface, and the inclination of the bottom surface of the grinding plate (6) is the same as the inclination of the bottom of the third chamber (8).

7. The device for preparing industrial waste-based geopolymers according to claim 6, characterized in that: Both the first material feed opening (5) and the second material feed opening (13) are provided with shielding curtains inside.

8. The device for preparing industrial waste-based geopolymers according to claim 7, characterized in that: The diameter of the first push rod (3) is smaller than the diameter of the second push rod (4); the connection between the second push rod (4) and the housing (1) is a threaded connection.

9. The device for preparing industrial waste-based geopolymers according to claim 8, characterized in that: The limiting assembly comprises a first gear (21) meshing with a second gear (16) arranged in the first chamber (15); the second gear (16) is coaxially and eccentrically connected to a second rotating wheel (17) with its rotation center; the second rotating wheel (17) is provided with a rotating ring on its outer sleeve, and the rotating ring is hinged on a third connecting rod (18).

10. A method for preparing industrial waste-based geopolymers, characterized in that: Here are the steps: Step 1: grinding raw materials, feeding the prepared various industrial wastes into the third chamber (8) through the first feed port (5), and then grinding the raw materials through the rotation and extrusion of the grinding plate (6) to form mixed powder; Step 2, mixing and exciting, the mixed powder is screened by the filter screen (9), enters the fourth chamber (10) along the conveying port, and then puts the alkaline activator and cement clinker into the first chamber through the second feed port (13), adds water, and stirs through the L-shaped stirring rod (11) to form a cement mixture; Step three, drying and demoulding, pour the stirred cement mixture into the prepared mold, and dehydrate and air-dry at room temperature. After completion of drying, demoulding is performed to form the final industrial waste-based geopolymer.

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