Automatic preparation process of green high-performance concrete

Abstract

The invention discloses an automatic preparation process of green high-performance concrete, and relates to the technical field of concrete building material preparation. Comprising the following process steps of raw material pretreatment, quantitative weighing and batching and mixing preparation, the raw material pretreatment comprises the steps of crushing, magnetic separation and screening treatment on the waste building ceramic material, and the crushing, magnetic separation and screening treatment processes are carried out through hammering magnetic separation screening equipment. According to the production process of the green high-performance concrete, the waste building ceramic material is taken as a raw material, is subjected to crushing and impurity removal to serve as a high-quality raw material, is subjected to proper magnetic separation and screening operation and is applied to preparation of the green high-performance concrete, the strength grade and the anti-permeability performance can be improved, traditional aggregate such as stone is replaced for preparing the concrete, and the environment-friendly high-performance concrete is obtained. The method is more environment-friendly. The hammering, magnetic separation and screening equipment integrates the functions of crushing, magnetic separation and screening, the machining efficiency can be remarkably improved, and the transfer loss and the labor intensity are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete building material preparation, in particular to an automated preparation process for green high-performance concrete. Background Art

[0002] Green high-performance concrete (GHPC) refers to a new type of concrete material made from recycled materials, renewable energy, and low-carbon technologies. It boasts numerous advantages, including high strength, excellent durability, and low carbon emissions. Existing green high-performance concrete production processes typically use waste building ceramic materials containing fly ash, silica fume, and quartz powder. These materials are crushed, screened, and refined to create a base material, replacing traditional cement clinker. However, if traditional waste building ceramic materials are not properly crushed and magnetically separated, the replacement material will not only fail to enhance the strength and durability of green high-performance concrete, but may even have a negative impact. Excessive levels of magnetic materials can cause large localized stress concentrations in the concrete, resulting in a decrease in strength. The addition of magnetic materials can also alter the concrete's pore structure and chemical composition, affecting its durability. Furthermore, the crushed waste building ceramic materials must be properly screened and the particle size precisely controlled to ensure the quality of the finished concrete.

[0003] In the existing technology for preparing green, high-performance concrete, waste building ceramic materials are often crushed without proper magnetic separation and screening. Furthermore, the crushing, magnetic separation, and screening steps rely on two or more devices, resulting in increased material transfer losses, high labor intensity, and low processing efficiency. Furthermore, traditional magnetic separators can only screen magnetic materials such as magnets and magnetic metals, but non-magnetic metals and plastics remain in the separated materials, participating in the concrete preparation process and ultimately affecting the quality of the resulting green, high-performance concrete.

[0004] In view of this, in order to achieve the purpose of properly pre-treating waste building ceramic materials in the preparation process of green high-performance concrete to improve the quality of the finished product, the applicant provides an automated preparation process for green high-performance concrete. Summary of the Invention

[0005] In order to solve the problems existing in the background technology, the purpose of the present invention is to provide an automated preparation process for green high-performance concrete that can properly pretreat waste building ceramic materials to improve the quality of the finished product.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an automated preparation process for green high-performance concrete, comprising the following steps: raw material pretreatment, quantitative weighing and mixing of ingredients, wherein the raw material pretreatment includes crushing, magnetic separation and screening of waste building ceramic materials, wherein the crushing, magnetic separation and screening processes are performed by hammer magnetic separation and screening equipment; The hammer magnetic separation and screening equipment includes a hammer screening box, a feed port is provided at the top of the hammer screening box, a hammer bin is provided inside the top of the hammer screening box, a connecting bin is provided inside the hammer screening box below the hammer bin, an inner cavity of the connecting bin is rotatably connected to a magnetic separation roller, a first discharge port is provided on one side of the connecting bin, an inner cavity of the first discharge port is rotatably connected to a power roller, outer walls of the magnetic separation roller and the power roller are connected to a conveyor belt, the power roller rotates to drive the conveyor belt to rotate, a partition is fixedly connected to the outer wall of the conveyor belt, and the power roller is rotated by a driving mechanism; A screening bin is provided inside the hammer screening box at the bottom end of the connecting bin, and the inner cavity of the screening bin is provided with two mounting seats, the bottom end of the mounting seat is fixedly connected to a vibration spring, and the bottom end of the vibration spring is fixedly connected to the hammer screening box, and a screening plate is installed between the two mounting seats, and the screening plate is replaced by a replacement mechanism.

[0007] As a further solution of the present invention: the inner cavity of the hammering bin is rotatably connected to a hammering roller, the outer wall of the hammering roller is installed with a hammering head, a second discharge port is provided on one side of the screening bin, and a third discharge port is provided at the bottom end of the screening bin.

[0008] The cam is fixedly mounted on the support frame of the second support bracket, the cam being arranged on a track with the track being adjusted upwards to allow the track to move relative to the support frame.

[0009] As a further solution of the present invention: the driving mechanism includes a mounting frame, the mounting frame is fixedly connected to the outer wall of the hammer screening box, the outer wall of the mounting frame is equipped with a motor, the output end of the motor is connected to the first synchronous wheel, the outer wall of the first synchronous wheel is connected to a synchronous belt, the inner wall of one end of the synchronous belt is connected to the second synchronous wheel, the second synchronous wheel is rotatably connected to the mounting frame, the power roller is fixedly connected to the first synchronous wheel, one end of the second synchronous wheel is fixedly connected to the first docking block, one end of the first docking block is provided with a second docking block, one end of the second docking block is fixedly connected to a square rod, the interior of the hammer screening box is located below one of the mounting bases and is rotatably connected to a rotating disk, the square rod passes through the rotating disk and extends to the inner wall of the mounting slot, the outer wall of the rotating disk is fixedly connected to a protrusion, and the ends of the first docking block and the second docking block close to each other are fixedly connected to a card block.

[0010] As a further solution of the present invention: the second bevel gear is meshed with the first bevel gear, the outer wall of the threaded rod is symmetrically provided with external threads, the outer wall of the fixing block is provided with threaded holes, and the threaded holes match the external threads.

[0011] As a further solution of the present invention: the outer wall of the mounting plate is in contact with the inner wall of the mounting groove, and the outer wall of the fixing block is in contact with the inner wall of the fixing groove.

[0012] As a further solution of the present invention: the outer wall of the plug board fits with the inner wall of the slot, the outer wall of one end of the positioning block fits with the inner wall of the positioning slot, a slope is provided on one side of the positioning block, and the extrusion rod contacts the slope.

[0013] As a further solution of the present invention: a square groove is opened on the outer wall of the rotating disk, and the inner wall of the square groove is in contact with the outer wall of the square rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The production process of green high-performance concrete of the present invention uses waste building ceramic materials as raw materials. After crushing and removing impurities, the materials are used as high-quality raw materials. After proper magnetic separation and screening operations, they are applied to the preparation of green high-performance concrete, which can improve the strength grade and impermeability performance, replace traditional stone and other aggregates to prepare concrete, and are more green and environmentally friendly.

[0015] 2. The crushing, magnetic separation and screening processes in the process of the present invention are all completed in an integrated manner through hammer magnetic separation and screening equipment. The equipment is equipped with a hammer screening box, and brittle materials such as ceramics and glass are put into the hammer bin through the feed port, and the hammer head crushes the materials; the magnetic separation roller adsorbs the magnetic metal materials in the crushed materials onto the conveyor belt, and the magnetic metal materials are discharged through the first discharge port; non-magnetic metals and plastics, which are plastic materials, slide along the screening plate into the second discharge port and are discharged through the second discharge port; finally, the screened materials pass through the screening plate and are discharged through the third discharge port, which not only facilitates the crushing and screening operations of waste building ceramic materials and can remove magnetic substances in waste building ceramic materials, but also the non-magnetic metals and plastics in the waste building ceramic materials can be removed by screening, so as to reduce the impurity content of raw materials in subsequent concrete preparation operations.

[0016] 3. The hammer magnetic separation and screening equipment described in this invention integrates crushing, magnetic separation, and screening functions. This not only enables intensive process design, but also significantly improves processing efficiency, reduces transportation losses, and labor intensity. Furthermore, the magnetic separation and screening power are simultaneously provided by a single motor, saving power and reducing equipment manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the hammer magnetic separation and screening equipment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the hammer screening box of the hammer magnetic separation and screening equipment of the present invention; Figure 3 This is a schematic diagram of the installation of the mounting plate of the hammer magnetic separation and screening equipment of the present invention; Figure 4 This is a schematic diagram of the internal structure of the mounting plate of the hammer magnetic separation and screening equipment of the present invention; Figure 5 This is a schematic diagram of the installation of the screening plate of the hammer magnetic separation and screening equipment of the present invention; Figure 6 This is a schematic diagram of the internal structure of the plugboard of the hammer magnetic separation and screening equipment of the present invention; Figure 7 This is a schematic diagram of the installation of the mounting frame of the hammer magnetic separation and screening equipment of the present invention; Figure 8 This is a schematic structural diagram of the mounting frame of the hammer magnetic separation and screening equipment of the present invention; Figure 9 This is a structural schematic diagram of the first docking block and the second docking block of the hammer magnetic separation and screening equipment of the present invention; Figure 10 This is a schematic diagram of the installation of the square rods of the hammer magnetic separation and screening equipment of the present invention.

[0018] In the figure: 1. Hammer screening box; 2. Feeding port; 3. Hammering chamber; 4. Hammering roller; 5. Hammering head; 6. Connecting chamber; 7. Screening chamber; 8. Replacement mechanism; 801. Mounting slot; 802. Fixing slot; 803. Mounting plate; 804. Fixing block; 805. Threaded rod; 806. First bevel gear; 807. Second bevel gear; 808. Rotating column; 809. Slot; 810. Positioning slot; 811. Insert plate; 812. Positioning block; 813. Positioning spring; 814. Extrusion rod; 9. Drive Driving mechanism; 901, mounting frame; 902, motor; 903, first synchronous wheel; 904, synchronous belt; 905, second synchronous wheel; 906, first docking block; 907, second docking block; 908, square rod; 909, rotating disk; 910, protrusion; 911, clamping block; 10, first discharge port; 11, second discharge port; 12, third discharge port; 13, magnetic separation roller; 14, power roller; 15, conveyor belt; 16, partition; 17, mounting seat; 18, vibration spring; 19, screening plate. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes an embodiment of the present invention based on its overall structure.

[0021] See also Figures 1 to 10In an embodiment of the present invention, an automated preparation process for green high-performance concrete includes the following steps: raw material pretreatment, quantitative weighing and mixing of ingredients. Raw material pretreatment includes crushing, magnetic separation and screening of waste building ceramic materials. The crushing, magnetic separation and screening processes are carried out by hammer magnetic separation and screening equipment.

[0022] The hammer magnetic separation and screening equipment includes a hammer screening box 1, a feed port 2 is provided at the top of the hammer screening box 1, a hammer bin 3 is provided inside the top of the hammer screening box 1, the inner cavity of the hammer bin 3 is rotatably connected to a hammer roller 4, and a hammer head 5 is installed on the outer wall of the hammer roller 4. A connecting bin 6 is provided below the hammer bin 3 in the interior of the hammer screening box 1, a screening bin 7 is provided at the bottom end of the connecting bin 6 in the interior of the hammer screening box 1, a first discharge port 10 is provided on one side of the connecting bin 6, a second discharge port 11 is provided on one side of the screening bin 7, and a third discharge port 12 is provided at the bottom end of the screening bin 7, and the inner cavity of the connecting bin 6 is rotatably connected to The magnetic separation roller 13 and the inner cavity of the first discharge port 10 are rotatably connected to the power roller 14, and the outer walls of the magnetic separation roller 13 and the power roller 14 are connected to the conveyor belt 15. The rotation of the power roller 14 is used to drive the conveyor belt 15 to rotate. The outer wall of the conveyor belt 15 is fixedly connected to the partition 16. The inner cavity of the screening bin 7 is provided with two mounting seats 17. The bottom end of the mounting seat 17 is fixedly connected to the vibration spring 18. The bottom end of the vibration spring 18 is fixedly connected to the hammer screening box 1. A screening plate 19 is installed between the two mounting seats 17. The screening plate 19 is replaced by the replacement mechanism 8, and the power roller 14 is rotated by the driving mechanism 9.

[0023] In this embodiment, brittle materials such as ceramics and glass are put into the hammering bin 3 through the feed port 2, and the hammering head 5 crushes the materials when the hammering roller 4 rotates; the crushed materials fall into the connecting bin 6 and slide along the inner wall of the connecting bin 6. During this process, when the materials pass through the magnetic separation roller 13, the magnetic separation roller 13 adsorbs the magnetic metal materials in the crushed materials onto the conveyor belt 15, and the conveyor belt 15 rotates through the partition 16 to push the magnetic metal materials into the first discharge port 10, and the magnetic metal materials are discharged through the first discharge port 10; then the materials slide along the connecting bin 6 into the screening bin 7 , and falls onto the screening plate 19. Since the screening plate 19 is tilted and can vibrate, the material moves along the screening plate 19. The non-magnetic metal and plastic in the remaining material are plastic materials and will not be crushed too finely. The non-magnetic metal and plastic slide along the screening plate 19 into the second discharge port 11, and the non-magnetic metal and plastic are discharged through the second discharge port 11; finally, the screened material passes through the screening plate 19 and is discharged through the third discharge port 12. This design not only facilitates the crushing and screening operations of waste building ceramic materials, but also allows the different materials of magnetic separation and screening to be classified, collected and processed simultaneously.

[0024] Please refer to Figures 2 to 6 The replacement mechanism 8 includes a mounting groove 801, which is opened on the outer wall of the hammer screening box 1. The inner wall of the mounting groove 801 is symmetrically provided with a fixing groove 802. The inner wall of the mounting groove 801 is slidably connected with a mounting plate 803. The interior of the mounting plate 803 is symmetrically slidably connected with a fixing block 804 extending from the mounting plate 803. The interior of the mounting plate 803 is rotatably connected with a threaded rod 805 extending to the interior of the fixing block 804. The outer wall of the threaded rod 805 is fixedly connected with a first bevel gear 806. The interior of the mounting plate 803 is located at the first bevel gear. The outer wall of 806 is rotatably connected to the second bevel gear 807, one end of the second bevel gear 807 is fixedly connected to the rotating column 808, one end of the mounting seat 17 is provided with a slot 809, the inner wall of the slot 809 is provided with a positioning groove 810, the two ends of the screening plate 19 are symmetrically fixedly connected with the plug plate 811, the interior of the plug plate 811 is slidably connected to the positioning block 812 extending from the plug plate 811, a positioning spring 813 is connected between the positioning block 812 and the plug plate 811, and the interior of the plug plate 811 is slidably connected to the extrusion rod 814 on one side of the positioning block 812.

[0025] In this embodiment: when installing the mounting plate 803, the rotating column 808 is rotated, and the rotating column 808 rotates to drive the second bevel gear 807 to rotate, and the second bevel gear 807 rotates to drive the first bevel gear 806 to rotate, and the first bevel gear 806 rotates to drive the threaded rod 805 to rotate, and the threaded rod 805 rotates to drive the fixed block 804 to move, and the fixed block 804 moves into the mounting plate 803, and the mounting plate 803 is moved into the mounting groove 801, and then the rotating column 808 is rotated to drive the fixed block 804 to be inserted into the fixed groove 802, and the mounting plate 803 is installed. When dismantling, rotate the rotating column 808 to drive the fixed block 804 to move out of the fixed slot 802, so that the mounting plate 803 can be removed; when installing the screening plate 19, push the extrusion rod 814, and the extrusion rod 814 moves to push the positioning block 812 to move into the insert plate 811, causing the positioning spring 813 to be squeezed, and the insert plate 811 is inserted into the slot 809, and the extrusion rod 814 is released. The positioning block 812 is engaged into the positioning slot 810 under the elastic force of the positioning spring 813, and the screening plate 19 is fixedly installed; when replacing the screening plate 19, remove the mounting plate 803, and then replace the screening plate 19, so as to facilitate the replacement of the screening plate 19, thereby screening out materials of different sizes.

[0026] Please refer to Figures 7 to 10The driving mechanism 9 includes a mounting frame 901, which is fixedly connected to the outer wall of the hammer screening box 1. A motor 902 is installed on the outer wall of the mounting frame 901. The output end of the motor 902 is connected to a first synchronous wheel 903. The outer wall of the first synchronous wheel 903 is connected to a synchronous belt 904. The inner wall of one end of the synchronous belt 904 is connected to a second synchronous wheel 905. The second synchronous wheel 905 is rotatably connected to the mounting frame 901. The power roller 14 is fixedly connected to the first synchronous wheel 903. One end of the second synchronous wheel 905 is fixedly connected to the inner wall of the second synchronous wheel 905. It is connected to a first docking block 906, a second docking block 907 is provided at one end of the first docking block 906, and a square rod 908 is fixedly connected to one end of the second docking block 907. The interior of the hammer screening box 1 is located below a mounting seat 17 and is rotatably connected to a rotating disk 909. The square rod 908 passes through the rotating disk 909 and extends to the inner wall of the mounting groove 801. A protrusion 910 is fixedly connected to the outer wall of the rotating disk 909. A clamping block 911 is fixedly connected to the end where the first docking block 906 and the second docking block 907 are close to each other.

[0027] In this embodiment: the operation of the motor 902 drives the first synchronous wheel 903 to rotate, the rotation of the first synchronous wheel 903 drives the power roller 14 to rotate, and the rotation of the power roller 14 drives the conveyor belt 15 to rotate; at the same time, when the mounting plate 803 is not removed, the mounting plate 803 squeezes the square rod 908, so that the second docking block 907 is in close contact with the first docking block 906, and the second docking block 907 is engaged with the clamping block 911 on the first docking block 906. When the first synchronous wheel 903 rotates, the first synchronous wheel 903 rotates through the synchronous belt 904 to drive the second synchronous wheel 905 to rotate, the second synchronous wheel 905 rotates to drive the first docking block 906 to rotate, and the first docking block 906 rotates through the clamping block 911 to drive the second The second docking block 907 rotates, and the rotation of the second docking block 907 drives the square rod 908 to rotate, and the rotation of the square rod 908 drives the rotating disk 909 to rotate, and the rotation of the rotating disk 909 drives the protrusion 910 to rotate and displace. During the rotation and displacement process, the protrusion 910 hits the mounting seat 17, thereby driving the screening plate 19 to vibrate, which is convenient for screening the material; when the mounting plate 803 is removed and the screening plate 19 is replaced, the mounting plate 803 is separated from the square rod 908, and the square rod 908 is pulled outward by the suction cup or magnetic effect, thereby loosening the locking connection between the first docking block 906 and the second docking block 907, so that the screening plate 19 no longer vibrates, and the replacement operation of the screening plate 19 is convenient.

[0028] Please refer to Figures 2 to 6 The second bevel gear 807 is meshed with the first bevel gear 806 , the outer wall of the threaded rod 805 is symmetrically provided with external threads, and the outer wall of the fixing block 804 is provided with threaded holes, which match the external threads.

[0029] In this embodiment: rotate the rotating column 808, the rotating column 808 drives the second bevel gear 807 to rotate, the second bevel gear 807 drives the first bevel gear 806 to rotate, the first bevel gear 806 drives the threaded rod 805 to rotate, the threaded rod 805 drives the fixed block 804 to move, and the fixed block 804 moves into the mounting plate 803.

[0030] Please refer to Figures 2 to 6 The outer wall of the mounting plate 803 fits in with the inner wall of the mounting groove 801 , and the outer wall of the fixing block 804 fits in with the inner wall of the fixing groove 802 .

[0031] In this embodiment, the mounting plate 803 is moved into the mounting groove 801 , and then the rotating column 808 is rotated to drive the fixing block 804 to be inserted into the fixing groove 802 , and the mounting plate 803 is installed.

[0032] Please refer to Figures 2 to 6 The outer wall of the inserting plate 811 fits with the inner wall of the slot 809, the outer wall of one end of the positioning block 812 fits with the inner wall of the positioning groove 810, and a slope is provided on one side of the positioning block 812, and the extrusion rod 814 contacts the slope.

[0033] In this embodiment: push the extrusion rod 814, the extrusion rod 814 moves and pushes the positioning block 812 to move into the insert plate 811, causing the positioning spring 813 to be squeezed, and the insert plate 811 is inserted into the slot 809, and the extrusion rod 814 is released. The positioning block 812 is engaged into the positioning groove 810 by the elastic force of the positioning spring 813, and the screening plate 19 is fixedly installed.

[0034] Please refer to Figures 7 to 10 The outer wall of the rotating disk 909 is provided with a square groove, and the inner wall of the square groove fits with the outer wall of the square rod 908.

[0035] In this embodiment: when the mounting groove 801 is not removed, the mounting groove 801 squeezes the square rod 908, so that the second docking block 907 is in close contact with the first docking block 906, and the second docking block 907 is engaged with the clamping block 911 on the first docking block 906. When the first synchronous wheel 903 rotates, the first synchronous wheel 903 rotates to drive the second synchronous wheel 905 to rotate through the synchronous belt 904, and the second synchronous wheel 905 rotates to drive the first docking block 906 to rotate. The first docking block 906 rotates to drive the second docking block 907 to rotate through the clamping block 911, and the second docking block 907 rotates to drive the square rod 908 to rotate, and the square rod 908 rotates to drive the rotating disk 909 to rotate.

[0036] It should be pointed out that other steps in the process of preparing green high-performance concrete, such as raw material pretreatment, quantitative weighing and mixing of ingredients, can be found in the prior art. They are not the main innovations of this patent and will not be described in detail here.

[0037] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An automated preparation process for green high-performance concrete, comprising the following steps: raw material pretreatment, quantitative weighing and mixing, characterized in that: Raw material pretreatment includes crushing, magnetic separation and screening of waste building ceramic materials, and the crushing, magnetic separation and screening processes are carried out by hammer magnetic separation and screening equipment; The hammer magnetic separation and screening equipment includes a hammer screening box (1), a feed port (2) is provided at the top of the hammer screening box (1), a hammer bin (3) is provided inside the top of the hammer screening box (1), a connecting bin (6) is provided inside the hammer screening box (1) below the hammer bin (3), an inner cavity of the connecting bin (6) is rotatably connected to a magnetic separation roller (13), a first discharge port (10) is provided on one side of the connecting bin (6), an inner cavity of the first discharge port (10) is rotatably connected to a power roller (14), outer walls of the magnetic separation roller (13) and the power roller (14) are connected to a conveyor belt (15), the power roller (14) is rotated to drive the conveyor belt (15) to rotate, the outer wall of the conveyor belt (15) is fixedly connected to a partition (16), and the power roller (14) is rotated by a driving mechanism (9); A screening chamber (7) is provided at the bottom end of the connecting chamber (6) inside the hammer screening box (1), and the inner cavity of the screening chamber (7) is provided with two mounting seats (17). The bottom end of the mounting seat (17) is fixedly connected to a vibration spring (18), and the bottom end of the vibration spring (18) is fixedly connected to the hammer screening box (1). A screening plate (19) is installed between the two mounting seats (17), and the screening plate (19) is replaced by a replacement mechanism (8).

2. The automated preparation process for green high-performance concrete according to claim 1, characterized in that: The inner cavity of the hammer bin (3) is rotatably connected to a hammer roller (4), and a hammer head (5) is installed on the outer wall of the hammer roller (4). A second discharge port (11) is provided on one side of the screening bin (7), and a third discharge port (12) is provided at the bottom end of the screening bin (7).

3. The automated preparation process for green high performance concrete according to claim 2, characterized in that: The replacement mechanism (8) includes a mounting groove (801), the mounting groove (801) is provided on the outer wall of the hammer screening box (1), the inner wall of the mounting groove (801) is symmetrically provided with a fixing groove (802) in the upper and lower parts, the inner wall of the mounting groove (801) is slidably connected to a mounting plate (803), the interior of the mounting plate (803) is symmetrically slidably connected to a fixing block (804) extending from the mounting plate (803), the interior of the mounting plate (803) is rotatably connected to a threaded rod (805) extending to the interior of the fixing block (804), the outer wall of the threaded rod (805) is fixedly connected to a first bevel gear (806), and the interior of the mounting plate (803) is located at the first bevel gear. The outer wall of (806) is rotatably connected to a second bevel gear (807), one end of the second bevel gear (807) is fixedly connected to a rotating column (808), one end of the mounting seat (17) is provided with a slot (809), the inner wall of the slot (809) is provided with a positioning groove (810), both ends of the screening plate (19) are symmetrically fixedly connected to plug plates (811), the interior of the plug plate (811) is slidably connected to a positioning block (812) extending from the plug plate (811), a positioning spring (813) is connected between the positioning block (812) and the plug plate (811), and the interior of the plug plate (811) is slidably connected to an extrusion rod (814) located on one side of the positioning block (812).

4. The automated preparation process for green high-performance concrete according to claim 3, characterized in that: The driving mechanism (9) includes a mounting frame (901), the mounting frame (901) is fixedly connected to the outer wall of the hammer screening box (1), the outer wall of the mounting frame (901) is installed with a motor (902), the output end of the motor (902) is connected to a first synchronous wheel (903), the outer wall of the first synchronous wheel (903) is connected to a synchronous belt (904), the inner wall of one end of the synchronous belt (904) is connected to a second synchronous wheel (905), the second synchronous wheel (905) is rotatably connected to the mounting frame (901), the power roller (14) is fixedly connected to the first synchronous wheel (903), and one end of the second synchronous wheel (905) is fixedly connected to the first synchronous wheel (903). A first docking block (906) is fixedly connected, a second docking block (907) is provided at one end of the first docking block (906), a square rod (908) is fixedly connected to one end of the second docking block (907), the interior of the hammer screening box (1) is located below one of the mounting seats (17) and is rotatably connected to a rotating disk (909), the square rod (908) passes through the rotating disk (909) and extends to the inner wall of the mounting groove (801), a protrusion (910) is fixedly connected to the outer wall of the rotating disk (909), and a clamping block (911) is fixedly connected to one end of the first docking block (906) and the second docking block (907) that is close to each other.

5. The automated preparation process for green high performance concrete according to claim 3, characterized in that: The second bevel gear (807) is meshed with the first bevel gear (806), the outer wall of the threaded rod (805) is symmetrically provided with external threads, and the outer wall of the fixing block (804) is provided with a threaded hole, and the threaded hole matches the external thread.

6. The automated preparation process for green high performance concrete according to claim 3, characterized in that: The outer wall of the mounting plate (803) fits in contact with the inner wall of the mounting groove (801), and the outer wall of the fixing block (804) fits in contact with the inner wall of the fixing groove (802).

7. The automated preparation process for green high performance concrete according to claim 3, characterized in that: The outer wall of the inserting plate (811) fits in contact with the inner wall of the slot (809), the outer wall of one end of the positioning block (812) fits in contact with the inner wall of the positioning groove (810), and a slope is provided on one side of the positioning block (812), and the extrusion rod (814) contacts the slope.

8. The automated preparation process for green high performance concrete according to claim 4, characterized in that: A square groove is formed on the outer wall of the rotating disk (909), and the inner wall of the square groove fits in contact with the outer wall of the square rod (908).

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