Production process of autoclaved aerated concrete block
By using ceramic powder to replace the original raw materials and optimizing process parameters, combined with an improved autoclave design, the problems of raw material instability and inconvenient track connection were solved, thus achieving improved quality stability and production efficiency of autoclaved aerated concrete blocks.
Patent Information
- Application Number
- CN202511586278.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-01
- Publication Date
- 2026-01-16
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the current production of autoclaved aerated concrete blocks, the instability of raw materials leads to large fluctuations in quality, process parameters are difficult to fix, and the connection between the feeding track and the conveying track is inconvenient, which affects production efficiency.
Ceramic powder was used to replace sand and fly ash as the main raw material, production process parameters were optimized, and the autoclave design was improved by connecting and supporting mechanisms to achieve convenient track connection.
It improves the stability and controllability of product quality, enhances the strength and thermal insulation performance of autoclaved aerated concrete blocks, and simplifies the operation process of autoclaves.
Smart Images
Figure CN121340438A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of concrete block production technology, specifically the production process of autoclaved aerated concrete blocks. Background Technology
[0002] Current technology for producing autoclaved aerated concrete (AAC) blocks relies heavily on rudimentary control of process parameters, depending on worker experience for temperature and pressure adjustments. This results in inconsistent quality of the produced AAC blocks. Furthermore, the main raw materials for AAC block production are sand or fly ash. The mineral composition and particle size distribution of sand vary depending on its origin, while the quality of fly ash is heavily dependent on the source of coal and the combustion process in coal-fired power plants, leading to significant fluctuations in fineness, carbon content, and activity. This instability of raw materials directly makes it difficult to standardize production process parameters, resulting in inconsistent strength, dry density, and other properties of the final product. Due to the fluctuations in sand or fly ash quality, frequent adjustments to the formula and process parameters (such as water-to-material ratio, aluminum powder dosage, and curing regime) are necessary during production. Even with these adjustments, it is still difficult to guarantee completely consistent performance across batches, posing risks to quality control and building applications.
[0003] When producing concrete blocks, an autoclave is required to steam-cur the blocks. However, the autoclave has a feeding track inside and a conveying track on the ground outside. The feeding track and the conveying track need to be connected by a connecting track so that the material cart can move from the outside of the autoclave to the inside. Since the connecting track interferes with the opening and closing of the autoclave, workers need to remove the connecting track when opening and closing the autoclave, making the autoclaving operation inconvenient.
[0004] To improve the quality stability of autoclaved aerated concrete (AAC) blocks and to facilitate the connection between the feeding track and the conveying track, a production process for AAC blocks is provided. Summary of the Invention
[0005] The purpose of this invention is to provide a production process for autoclaved aerated concrete blocks in order to improve the quality stability of autoclaved aerated concrete blocks and facilitate the connection between the feeding track and the conveying track.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a production process for autoclaved aerated concrete blocks, the specific steps of which are as follows: Step 1: Mixing. The following materials in the indicated mass ratios are mixed using a mixing tank. 500-520 parts of ceramic powder; 120-130 parts lime; 80-90 parts cement; 1-2 parts aluminum powder; 30-40 parts plaster; Step 2: Pouring, pouring the mixed material into the mold car; Step 3: Curing. Move the mold car to the curing room for initial setting of the material. Step 4: Demolding. Use a tumbler crane to demold the blank inside the mold trolley. Step 5: Cutting. Use a side cutting machine, a horizontal cutting machine, and a vertical cutting machine to cut the material. Step Six: Autoclaving. The embryos are moved into the autoclave for autoclaving. The specific procedures are as follows: ①: Vacuuming: After the blocks are put into the autoclave, start vacuuming. The time should be controlled at 25-30 minutes and the pressure should be uniformly reduced to -0.06MPa. ②: Heating: Increase the pressure from -0.06MPa to 1.15-1.2MPa at a constant rate over 2.5-3 hours; ③: Heat preservation and pressure maintenance: Keep the pressure inside the reactor stable at 1.15-1.2 MPa for 6 hours; ④: Pressure reduction: Within 2.5-3 hours, reduce the pressure from 1.15-1.2MPa to 0-0.03MPa at a uniform rate. Step 7: Finished product packaging. Use finished product clamps to lift and move the finished products for packaging.
[0007] As a further aspect of the present invention: In step six, the preforms are carried in batches by a railcart and transported to an autoclave; the autoclave includes a base, the top of the base has a groove, the bottom of the inner wall of the groove is fixedly connected to the autoclave body, both ends of the autoclave body are equipped with autoclave doors, the top of the base is fixedly connected to both ends of the autoclave body by a conveying rail, the inner wall of the autoclave body is fixedly connected to a feeding rail, and the conveying rail and the feeding rail are connected by a docking mechanism.
[0008] As a further embodiment of the present invention: the docking mechanism includes a movable frame, which is slidably connected to the interior of the vessel body and extends to both ends of the feeding track. The interior of the vessel body has a movable groove for the movable frame to slide in. A first spring connects the movable frame and the movable groove. A connecting track is rotatably connected to the top of the movable frame. A connecting shaft is fixedly connected to the outer wall of the connecting track. The connecting shaft is rotatably connected to the interior of the movable frame. A first bevel gear is fixedly connected to the outer wall of the first bevel gear inside the movable frame. A second bevel gear is rotatably connected to the bottom of the second bevel gear. A third bevel gear is fixedly connected to the bottom of the mounting shaft. A fourth bevel gear is rotatably connected to the outer wall of the third bevel gear inside the movable frame. A first spur gear is fixedly connected to one end of the fourth bevel gear. An extrusion block is slidably connected to the outer wall of the first spur gear inside the movable frame. A second spring connects the extrusion block to the movable frame. The top of the extrusion block extends out of the movable frame. A support mechanism provides support below the connecting track.
[0009] As a further embodiment of the present invention: the support mechanism includes a hydraulic cylinder, which is installed in the inner cavity of the groove and located at one end of the vessel body. The output end of the hydraulic cylinder is connected to a support plate, and the bottom end of the support plate is fixedly connected to a toothed plate. A displacement plate is slidably connected inside the vessel body below the movable frame. A second spur gear is rotatably connected inside the vessel body to the outer wall of the displacement plate. The second spur gear contacts the displacement plate. A slot is provided at one end of the connecting track. A sliding plate extending into the inner cavity of the groove is slidably connected inside the base. A third spring is connected between the sliding plate and the base. A fixing block is fixedly connected to the top of the sliding plate. The fixing block is located at one end of the conveying track, and a fixing groove is provided at the end of the conveying track facing the fixing block.
[0010] As a further embodiment of the present invention: the outer wall of the movable frame is in contact with the inner wall of the movable groove, and the movable frame is U-shaped.
[0011] As a further embodiment of the present invention: the outer wall of the extrusion block is provided with a first toothed groove, which meshes with the first spur gear.
[0012] As a further embodiment of the present invention: the fourth bevel gear meshes with the third bevel gear, and the second bevel gear meshes with the first bevel gear.
[0013] As a further embodiment of the present invention: the outer wall of the toothed plate and the displacement plate is provided with a second tooth groove, which meshes with the second spur gear.
[0014] As a further embodiment of the present invention: the end of the sliding plate extending from the base is provided with a slope.
[0015] As a further embodiment of the present invention: one end of the outer wall of the fixing block is fitted with the inner wall of the slot, and the other end of the outer wall of the fixing block is fitted with the inner wall of the fixing groove.
[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. The improved formula of this invention utilizes ceramic powder to replace sand or fly ash in existing technologies. Ceramic powder typically comes from waste materials generated during the molding and grinding processes in ceramic factories, and its chemical composition (mainly SiO2 and Al2O3) and physical properties are relatively stable. Ceramic powder is a large category of industrial solid waste (ceramic waste). Utilizing it not only replaces sand and fly ash but also "turns waste into treasure," realizing the resource utilization of solid waste, conforming to the concept of a circular economy, and alleviating the environmental pressure on the ceramic industry. Using it as the main silica material ensures the uniformity of the formula from the source, laying the foundation for stable production. With stable raw materials, the "repeatability" of the production process is greatly improved. Combined with the optimized process parameters of this invention, products with highly consistent performance can be continuously produced, significantly improving the reliability and controllability of product quality.
[0017] Using ceramic powder as the main raw material can improve the pore structure of blocks. Unlike the spherical particles of fly ash, its irregular shape may form a better skeleton in the slurry, helping to form a finer and more uniform closed-cell structure. This can directly lead to increased strength or reduced dry density at the same strength; it can also improve and optimize thermal performance: a more uniform and fine pore structure means stronger resistance to air convection, thereby further reducing the thermal conductivity of the product and making its thermal insulation performance better. The particle characteristics of ceramic powder may be beneficial in adjusting the viscosity and flowability of the slurry, making its casting more stable, reducing bleeding and settling, thereby obtaining a better quality green body and reducing initial defects. The amorphous SiO2 and Al2O3 in ceramic powder may have better reactivity with lime and cement under high temperature and pressure than natural sand. This helps to generate crystalline phases such as tobermorite more fully during the autoclaving stage, which may shorten the curing time or improve the final strength.
[0018] 2. This invention improves the autoclave by setting up a docking mechanism and a support mechanism. The hydraulic cylinder rotates to drive the pallet to move, and the pallet's movement drives the displacement plate to move. When the pallet separates from the slide plate, the displacement plate contacts the movable frame, and the displacement plate continues to move, pushing the movable frame upward. The movable frame's movement drives the connecting track upward. After the connecting track moves a certain distance, it rotates to a vertical position. At this time, the two ends of the autoclave can be closed through the autoclave door, facilitating the connection between the conveying track and the feeding track via the connecting track. Furthermore, when the autoclave needs to be closed, the connecting track is automatically disassembled and stored. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the autoclave described in this invention; Figure 2 This is a schematic diagram of the installation of the connecting rails of the autoclave described in this invention; Figure 3 This is a schematic diagram of the installation of the movable frame of the autoclave described in this invention; Figure 4 This is a schematic diagram of the internal structure of the movable frame of the autoclave described in this invention; Figure 5 This is a schematic diagram of the extrusion block of the autoclave described in this invention; Figure 6 This is a schematic diagram of the installation of the support plate of the autoclave described in this invention; Figure 7 This is a schematic diagram of the installation of the fixing block of the autoclave described in this invention; Figure 8 This is a schematic diagram of the slot structure of the autoclave described in this invention.
[0020] In the diagram: 1. Base; 2. Groove; 3. Reactor body; 4. Reactor door; 5. Conveying track; 6. Feeding track; 7. Docking mechanism; 701. Movable groove; 702. Movable frame; 703. First spring; 704. Connecting track; 705. Connecting shaft; 706. First bevel gear; 707. Second bevel gear; 708. Mounting shaft; 709. Third bevel gear; 710. Fourth bevel gear; 711. First spur gear; 712. Extrusion block; 713. Second spring; 8. Support mechanism; 801. Hydraulic cylinder; 802. Support plate; 803. Toothed plate; 804. Second spur gear; 805. Displacement plate; 806. Slot; 807. Slide plate; 808. Third spring; 809. Fixing block; 810. Fixing groove. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, 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, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.
[0023] Please see Figures 1 to 8 In this embodiment of the invention, the production process of autoclaved aerated concrete blocks includes the following specific steps: Step 1: Mixing. Mix the following materials by weight in a mixing tank: 1.5t ceramic powder, 370kg lime, 250kg cement, 2.9kg aluminum powder, and 100kg gypsum. Step 2: Pouring, pouring the mixed material into the mold car; Step 3: Curing. Move the mold car to the curing room for initial setting of the material. Step 4: Demolding. Use a tumbler crane to demold the blank inside the mold trolley. Step 5: Cutting. Use a side cutting machine, a horizontal cutting machine, and a vertical cutting machine to cut the material. Step Six: Autoclaving. The embryos are moved into the autoclave for autoclaving. The specific procedures are as follows: ①: Vacuuming: After the blocks are put into the autoclave, start vacuuming. The time should be controlled at 25-30 minutes and the pressure should be uniformly reduced to -0.06MPa. ②: Heating: Increase the pressure from -0.06MPa to 1.15-1.2MPa at a constant rate over 2.5-3 hours; ③: Heat preservation and pressure maintenance: Keep the pressure inside the reactor stable at 1.15-1.2 MPa for 6 hours; ④: Pressure reduction: Within 2.5-3 hours, reduce the pressure from 1.15-1.2MPa to 0-0.03MPa at a uniform rate. Step 7: Finished product packaging. Use finished product clamps to lift and move the finished products for packaging.
[0024] Please refer to this carefully. Figures 1 to 8 In step six, the preforms are carried in batches by a railcart and transported to the autoclave. The autoclave includes a base 1, a groove 2 at the top of the base 1, an autoclave body 3 fixedly connected to the bottom of the inner wall of the groove 2, an autoclave door 4 installed at both ends of the autoclave body 3, a conveying rail 5 fixedly connected to the top of the base 1 at both ends of the autoclave body 3, a feeding rail 6 fixedly connected to the inner wall of the autoclave body 3, and the conveying rail 5 and the feeding rail 6 are connected by a docking mechanism 7.
[0025] In this embodiment: the railcart enters from one end of the reactor body 3 along the conveying track 5, and then the reactor body 3 is closed through the reactor door 4. The reactor body 3 performs steam curing on the blocks. After completion, the railcart moves out from the other end of the reactor body 3 onto the conveying track 5 along the feeding track 6.
[0026] It should be noted that when the vessel door 4 closes the vessel body 3, a high-temperature and high-pressure resistant sealing device and safety interlock are installed between the vessel door 4 and the vessel body 3. A steam inlet pipe is installed on the vessel body 3 to introduce high-pressure saturated steam generated by the boiler into the vessel body 3, and a temperature and pressure detection device is installed inside the vessel body 3 to monitor the temperature and pressure conditions inside the vessel body 3. A pressure relief pipe with a solenoid valve and a condensate drainage device located at the bottom of the vessel body 3 are also installed on the vessel body 3. The above structure is a conventional structure of the vessel body 3 in the prior art and is not the main innovation of this patent application. Its structure and working principle will not be described in detail here.
[0027] Please refer to this carefully. Figures 2 to 5The docking mechanism 7 includes a movable frame 702, which is slidably connected to the inside of the vessel body 3 and extends to both ends of the feed rail 6. The inside of the vessel body 3 has a movable groove 701 for the movable frame 702 to slide. A first spring 703 connects the movable frame 702 and the movable groove 701. A connecting rail 704 is rotatably connected to the top of the movable frame 702. A connecting shaft 705 is fixedly connected to the outer wall of the connecting rail 704. The connecting shaft 705 is rotatably connected to the inside of the movable frame 702. A first bevel gear 706 is fixedly connected to the outer wall of the connecting shaft 705. A second bevel gear 706 is rotatably connected to the inside of the movable frame 702, located on the outer wall of the first bevel gear 706. The bottom end of the second bevel gear 707 is fixedly connected to the mounting shaft 708, and the bottom end of the mounting shaft 708 is fixedly connected to the third bevel gear 709. The interior of the movable frame 702 is rotatably connected to the outer wall of the third bevel gear 709. One end of the fourth bevel gear 710 is fixedly connected to the first straight gear 711. The interior of the movable frame 702 is slidably connected to the outer wall of the first straight gear 711. A second spring 713 is connected between the pressing block 712 and the movable frame 702. The top end of the pressing block 712 extends out of the movable frame 702. The lower part of the connecting rail 704 is supported by the support mechanism 8.
[0028] In this embodiment: when the movable frame 702 is located at the bottom end of the movable groove 701, the movable frame 702 and the connecting rail 704 are vertically distributed. The connecting rail 704 is located between the conveying rail 5 and the feeding rail 6, connecting the conveying rail 5 and the feeding rail 6. When the movable frame 702 moves upward along the movable groove 701, the movable frame 702 moves until the extrusion block 712 contacts the inner wall of the movable groove 701. The extrusion block 712 is subjected to force and moves, causing compression on the second spring 713. The displacement of the extrusion block 712 drives the first spur gear 711 to rotate. The rotation of the first spur gear 711 drives the fourth bevel gear 710 to rotate. The rotation of the fourth bevel gear 710 drives the third bevel gear 710 to rotate. Gear 709 rotates, the third bevel gear 709 rotates, driving the mounting shaft 708 to rotate, the mounting shaft 708 rotates, driving the second bevel gear 707 to rotate, the second bevel gear 707 rotates, driving the first bevel gear 706 to rotate, the first bevel gear 706 rotates, driving the connecting shaft 705 to rotate, and the connecting shaft 705 rotates, driving the connecting track 704 to rotate, so that the connecting track 704 rotates to a vertical state; when the movable frame 702 slides downward, the pressing block 712 separates from the inner wall of the movable groove 701, the pressing block 712 is reset by the elastic force of the second spring 713, the displacement of the pressing block 712 drives the connecting track 704 to rotate, thereby causing the connecting track 704 to rotate and reset.
[0029] Please refer to this carefully. Figures 6 to 8The support mechanism 8 includes a hydraulic cylinder 801, which is installed in the inner cavity of the groove 2 and located at one end of the vessel body 3. The output end of the hydraulic cylinder 801 is connected to a support plate 802. The bottom end of the support plate 802 is fixedly connected to a toothed plate 803. The interior of the vessel body 3 is slidably connected to a displacement plate 805 located below the movable frame 702. The interior of the vessel body 3 is rotatably connected to the outer wall of the displacement plate 805. The second spur gear 804 is in contact with the displacement plate 805. A slot 806 is provided at one end of the connecting rail 704. A sliding plate 807 extending into the inner cavity of the groove 2 is slidably connected inside the base 1. A third spring 808 is connected between the sliding plate 807 and the base 1. A fixing block 809 is fixedly connected to the top of the sliding plate 807. The fixing block 809 is located at one end of the conveying rail 5. A fixing groove 810 is provided at the end of the conveying rail 5 facing the fixing block 809.
[0030] In this embodiment: the hydraulic cylinder 801 rotates to drive the pallet 802 to move, the pallet 802 moves to drive the toothed plate 803 to move, the toothed plate 803 moves to drive the second spur gear 804 to rotate, the second spur gear 804 rotates to drive the displacement plate 805 to move; when the pallet 802 contacts the slide plate 807, it pushes the slide plate 807 to move, causing compression on the third spring 808, the displacement of the slide plate 807 drives the fixing block 809 to move; the fixing block 809 can move into the slot 806, the fixing block 809 slides along the slot 806 and inserts into the fixing groove 810, and fixes the connection rail 704 and the conveying rail 5.
[0031] When the connecting rail 704 is in use, the support plate 802 is located at the bottom end of the connecting rail 704, providing support for the area below the connecting rail 704 (e.g., Figure 6 (As shown); When storing the connecting rail 704, the hydraulic cylinder 801 is activated. The hydraulic cylinder 801 rotates, causing the support plate 802 to move. The displacement of the support plate 802 causes the toothed plate 803 to move. The displacement of the toothed plate 803 causes the second spur gear 804 to rotate. The rotation of the second spur gear 804 causes the displacement plate 805 to move. When the support plate 802 separates from the sliding plate 807, the displacement plate 805 contacts the movable frame 702. The displacement plate 805 continues to move, pushing the movable frame 702 upward. The displacement of the movable frame 702 causes the connecting rail 704 to move upward. After the connecting rail 704 moves a certain distance, it rotates to a vertical position. At this time, the two ends of the vessel body 3 can be closed through the vessel door 4.
[0032] When opening both ends of the vessel body 3, the hydraulic cylinder 801 is activated. The operation of the hydraulic cylinder 801 drives the support plate 802 to move upward. The displacement of the support plate 802 drives the connecting rail 704 to move downward in a horizontal position. The connecting rail 704 moves between the conveying rail 5 and the feeding rail 6, and the fixing block 809 is inserted into the slot 806. Then, the movable frame 702 moves to the bottom of the movable groove 701, and the displacement plate 805 separates from the movable frame 702. The displacement plate 805 continues to move downward. When the slide plate 802 moves and comes into contact with the slide plate 807, it pushes the slide plate 807 to move, which compresses the third spring 808. The movement of the slide plate 807 causes the fixing block 809 to move. The fixing block 809 slides along the slot 806 and inserts into the fixing groove 810, which fixes the connection between the connecting rail 704 and the conveying rail 5. This facilitates the connection between the conveying rail 5 and the feeding rail 6 through the connecting rail 704. When it is necessary to close the vessel body 3, the connecting rail 704 is automatically disassembled and stored.
[0033] Please refer to this carefully. Figures 2 to 5 The outer wall of the movable frame 702 fits against the inner wall of the movable groove 701, and the movable frame 702 is U-shaped.
[0034] In this embodiment, the movable frame 702 can slide on the inner wall of the movable groove 701.
[0035] Please refer to this carefully. Figures 2 to 5 The outer wall of the extrusion block 712 is provided with a first tooth groove, which meshes with the first spur gear 711.
[0036] In this embodiment: the movable frame 702 moves until the pressing block 712 contacts the inner wall of the movable groove 701, the pressing block 712 is displaced by force, and the second spring 713 is squeezed. The displacement of the pressing block 712 drives the first spur gear 711 to rotate.
[0037] Please refer to this carefully. Figures 2 to 5 The fourth bevel gear 710 meshes with the third bevel gear 709, and the second bevel gear 707 meshes with the first bevel gear 706.
[0038] In this embodiment: the displacement of the extrusion block 712 causes the first spur gear 711 to rotate, the rotation of the first spur gear 711 causes the fourth bevel gear 710 to rotate, the rotation of the fourth bevel gear 710 causes the third bevel gear 709 to rotate, the rotation of the third bevel gear 709 causes the mounting shaft 708 to rotate, the rotation of the mounting shaft 708 causes the second bevel gear 707 to rotate, the rotation of the second bevel gear 707 causes the first bevel gear 706 to rotate, the rotation of the first bevel gear 706 causes the connecting shaft 705 to rotate, and the rotation of the connecting shaft 705 causes the connecting track 704 to rotate.
[0039] Please refer to this carefully. Figures 6 to 8 The outer walls of the toothed plate 803 and the displacement plate 805 are provided with a second tooth groove, which meshes with the second spur gear 804.
[0040] In this embodiment: the hydraulic cylinder 801 rotates to drive the support plate 802 to move, the support plate 802 moves to drive the toothed plate 803 to move, the toothed plate 803 moves to drive the second spur gear 804 to rotate, and the second spur gear 804 rotates to drive the displacement plate 805 to move.
[0041] Please refer to this carefully. Figures 6 to 8 The skateboard 807 extends from one end of the base 1 and has a bevel.
[0042] In this embodiment: when the support plate 802 contacts the slide plate 807, it pushes the slide plate 807 to move, causing compression on the third spring 808. The displacement of the slide plate 807 drives the fixed block 809 to move.
[0043] Please refer to this carefully. Figures 6 to 8 One end of the outer wall of the fixing block 809 is in contact with the inner wall of the slot 806, and the other end of the outer wall of the fixing block 809 is in contact with the inner wall of the fixing groove 810.
[0044] In this embodiment: the fixing block 809 can be moved into the slot 806, the fixing block 809 slides along the slot 806 and is inserted into the fixing groove 810 to fix the connection track 704 and the conveying track 5.
[0045] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. Process for the production of autoclaved aerated concrete blocks, characterized in that, The specific steps are as follows: Step one: mixing, mixing the materials in the following mass ratio by stirring tank, Ceramic powder 500-520 parts; Lime 120-130 parts; Cement 80-90 parts; Aluminum powder 1-2 parts; Gypsum 30-40 parts; Step two: pouring, pouring the mixed materials into the mold car; Step three: rest, moving the mold car to the rest room for rest, and curing the materials; Step four: demolding, using the empty flip crane to demold the embryo in the mold car; Step five: cutting, using side cutting machine, horizontal cutting machine and vertical cutting machine to cut the materials respectively; Step six: steam pressure curing, moving the embryo into the autoclave for steam curing, the specific operation is as follows: ①: vacuumizing: after the block enters the autoclave, vacuumizing is started, the time is controlled in 25-30 minutes, and it needs to be uniformly extracted to-0.06MPa; ②: heating: in 2.5-3 hours, the pressure is uniformly increased from-0.06MPa to 1.15-1.2MPa; ③: keeping temperature and pressure: in 6 hours, the pressure in the autoclave is kept stable at 1.15-1.2MPa; ④: pressure reduction: in 2.5-3 hours, the pressure is uniformly reduced from 1.15-1.2MPa to 0-0.03MPa; Step seven: finished product packaging, using finished product clamp to move and package the finished product.
2. The production process of autoclaved aerated concrete blocks according to Claim 1, characterized in that, In step six, the embryo is carried in batches by track car and transported into the autoclave; the autoclave comprises a base (1), a groove (2) is formed at the top end of the base (1), a kettle body (3) is fixedly connected to the inner wall bottom end of the groove (2), kettle doors (4) are installed at both ends of the kettle body (3), a conveying track (5) is fixedly connected to the top end of the base (1) at both ends of the kettle body (3), a feeding track (6) is fixedly connected to the inner wall of the kettle body (3), and the conveying track (5) and the feeding track (6) are connected by a butt joint mechanism (7).
3. The autoclaved aerated concrete block production process according to claim 2, characterized in that, The docking mechanism (7) includes a movable frame (702), which is slidingly connected to the inside of the kettle body (3) and extends to both ends of the feeding track (6), the inside of the kettle body (3) is provided with a movable groove (701) for sliding of the movable frame (702), the movable frame (702) and the movable groove (701) are connected with the first spring (703), the top end of the movable frame (702) is rotatably connected with the connecting track (704), the outer wall of the connecting track (704) is fixedly connected with the connecting shaft (705), the connecting shaft (705) is rotatably connected to the inside of the movable frame (702), the outer wall of the connecting shaft (705) is fixedly connected with the first bevel gear (706), the inside of the movable frame (702) is rotatably connected with the second bevel gear (707) at the outer wall of the first bevel gear (706), the bottom end of the second bevel gear (707) is fixedly connected with the mounting shaft (708), the bottom end of the mounting shaft (708) is fixedly connected with the third bevel gear (709), the inside of the movable frame (702) is rotatably connected with the fourth bevel gear (710) at the outer wall of the third bevel gear (709), one end of the fourth bevel gear (710) is fixedly connected with the first straight gear (711), the inside of the movable frame (702) is slidingly connected with the extrusion block (712) at the outer wall of the first straight gear (711), the second spring (713) is connected between the extrusion block (712) and the movable frame (702), the top end of the extrusion block (712) extends out of the movable frame (702), the connecting track (704) is supported by the supporting mechanism (8) below.
4. The autoclaved aerated concrete block production process according to claim 3, characterized in that, The supporting mechanism (8) includes a hydraulic cylinder (801), which is installed in the inner cavity of the groove (2) and located at one end of the kettle body (3), the output end of the hydraulic cylinder (801) is connected with the supporting plate (802), the bottom end of the supporting plate (802) is fixedly connected with the toothed plate (803), the inside of the kettle body (3) is slidingly connected with the displacement plate (805) below the movable frame (702), the inside of the kettle body (3) is rotatably connected with the second straight gear (804) at the outer wall of the displacement plate (805), the second straight gear (804) is in contact with the displacement plate (805), one end of the connecting track (704) is provided with a slot (806), the inside of the base (1) is slidingly connected with the sliding plate (807) extending into the inner cavity of the groove (2), the third spring (808) is connected between the sliding plate (807) and the base (1), the top end of the sliding plate (807) is fixedly connected with the fixed block (809), the fixed block (809) is located at one end of the conveying track (5), the conveying track (5) is provided with a fixed groove (810) at the end facing the fixed block (809).
5. The autoclaved aerated concrete block production process according to claim 3, characterized in that, The outer wall of the movable frame (702) is attached to the inner wall of the movable groove (701), and the movable frame (702) is in the shape of a U.
6. The autoclaved aerated concrete block production process according to claim 3, characterized in that, The outer wall of the extrusion block (712) is provided with a first gear slot, and the first gear slot is engaged with the first spur gear (711).
7. The autoclaved aerated concrete block production process according to claim 3, characterized in that, The fourth bevel gear (710) is engaged with the third bevel gear (709), and the second bevel gear (707) is engaged with the first bevel gear (706).
8. The autoclaved aerated concrete block production process according to claim 4, characterized in that, The outer wall of the toothed plate (803) and the displacement plate (805) is provided with a second gear slot, and the second gear slot is engaged with the second spur gear (804).
9. The autoclaved aerated concrete block production process according to claim 4, characterized in that, The end of the sliding plate (807) extending out of the base (1) is provided with an inclined surface.
10. The autoclaved aerated concrete block production process according to claim 4, characterized in that, The outer wall of one end of the fixed block (809) is attached to the inner wall of the insertion groove (806), and the outer wall of the other end of the fixed block (809) is attached to the inner wall of the fixed groove (810).