A curing device for aerated concrete blocks

Abstract

This invention belongs to the field of concrete block production technology and discloses an autoclaved aerated concrete block curing device, including an autoclave and a transfer vehicle, and further including: a carrying frame mounted on the transfer vehicle; multiple supporting components arranged sequentially from bottom to top on the carrying frame, each supporting component including a movable plate movably mounted on the carrying frame, the movable plate being movably connected to multiple support plates, with adjacent support plates tightly fitted together; and a driving component for driving the support plates to move up and down, and misaligning adjacent support plates. Because the adjacent support plates are tightly fitted together, forming a gapless plane, when the block is placed on the support plate, the bottom of the block receives uniform support, reducing deformation caused by uneven bottom support before entering the autoclave. This invention solves the problem of insufficient support for concrete blocks during autoclaving and is suitable for the autoclaving curing of aerated concrete blocks.

Description

Technical Field

[0001] This solution belongs to the field of concrete block production technology, specifically involving an aerated concrete block curing device. Background Technology

[0002] Autoclaved aerated concrete (AAC) blocks are a lightweight, porous building material, mainly made from raw materials such as cement, lime, sand, and fly ash, and produced under high temperature and pressure by adding a foaming agent. They possess excellent properties such as lightweight, heat insulation, sound insulation, thermal insulation, and earthquake resistance, and are commonly used in building walls, floors, and roofs.

[0003] During the production of concrete blocks, the cement, lime, and other binding materials inside the blocks need to undergo a hydration reaction under specific temperature and pressure conditions to form a strong binder. By placing the concrete blocks into an autoclave to provide a high-temperature and high-pressure environment, the hydration reaction is accelerated, resulting in a more uniform pore structure inside the blocks, increasing their density, and reducing the formation of cracks.

[0004] See the existing patent publication (announcement) document CN111347540A, which discloses a multifunctional aerated concrete curing platform. The platform moves the aerated concrete blocks on the placement plate by rotating the drive roller, so as to separate the concrete blocks from each other and allow each surface of the blocks to be cured during autoclaving.

[0005] However, after entering the autoclave, the concrete blocks have not undergone sufficient autoclaving treatment; the hydration reaction is incomplete, and the block structure has not yet reached sufficient strength. At this point, the support at the bottom of the block is insufficient. When the blocks move through the autoclave via the drive rollers, the weak support at the bottom makes them more prone to deformation during movement, leading to damage. Furthermore, the blocks undergo cutting before entering the autoclave, meaning they are not yet hardened. Placing unhardened blocks directly on the drive rollers, with gaps between them, results in limited support area at the bottom. In this situation, a localized area at the bottom of the block bears significant concentrated pressure, while other areas are unsupported, causing localized bending deformation at the bottom under pressure. Summary of the Invention

[0006] The purpose of this solution is to provide an aerated concrete block curing device to solve the problem of insufficient support for concrete blocks during autoclaving.

[0007] To achieve the above objectives, this solution provides an autoclaved aerated concrete block curing device, including an autoclave and a transfer vehicle, and further comprising:

[0008] A cargo rack, which is mounted on the shuttle vehicle;

[0009] A load-bearing assembly, the load-bearing assembly including a movable plate disposed on a shelf, the movable plate being movably connected to multiple support plates, and adjacent support plates being tightly fitted together;

[0010] A first driving component is used to drive the support plates to move up and down, and to misalign adjacent support plates.

[0011] The principle of this scheme is as follows: concrete blocks are placed on a movable plate on a carrying frame, and then transported into an autoclave for autoclaving under the traction of a shuttle vehicle. During the autoclaving process, the adjacent support plates are moved towards each other by a drive assembly, so that one support plate is on the upper side and the other is on the lower side.

[0012] The effects of this scheme are as follows: (1) In the initial state, since the adjacent support plates are tightly fitted together, forming a plane without gaps, the block is placed on the support plate, and the bottom of the block is supported by the support plate, which can reduce the deformation of the block due to insufficient bottom support force before entering the autoclave. (2) During the pressurization stage, the surface of the block gradually hardens. During the pressurization to constant pressure stage, the surface of the block has already hardened. At this time, by driving the component to make the adjacent support plates misaligned, the surface area of ​​the bottom of the block in contact with the steam can be increased, which can make the steam penetrate into the bottom of the block more evenly, accelerate the hydration reaction, and promote the uniform hardening of the entire block. (3) By misaligning the adjacent support plates, the contact surfaces of adjacent blocks can be separated, creating gaps between adjacent blocks. This can prevent the blocks from sticking together during the autoclaving process, which is beneficial for the separation of blocks after autoclaving and subsequent processes. At the same time, the contact surfaces of adjacent blocks can be cured by steam, which helps the blocks harden evenly. (4) The gaps created by the misalignment of adjacent blocks allow steam to pass through the gaps into the lower blocks, reducing the autoclaving time and improving the efficiency of autoclaving. (5) After autoclaving, the support plate can be reset, and the blocks can be placed on the plane again, making them neatly arranged and convenient for subsequent handling and stacking.

[0013] Furthermore, there are multiple load-bearing components, and these multiple load-bearing components are arranged sequentially from bottom to top on the shelf.

[0014] The principle and effect of this solution is to set up multiple load-bearing components on the shelf, with each layer capable of holding multiple blocks.

[0015] Furthermore, the first driving assembly is disposed within the movable plate; the first driving assembly includes a first rack and a first cylinder for driving the first rack to move left and right, the piston rod of the first cylinder being slidably connected to the first rack, and the first rack being fixedly connected to the support plate; it also includes a second cylinder for driving the first rack to move up and down, the piston rod of the second cylinder being slidably connected to the first rack; it also includes a second rack and a third cylinder for driving the second rack to move left and right, the piston rod of the third cylinder being slidably connected to the second rack, the second rack being connected to a return spring, the free end of the return spring being connected to the movable plate, and the second rack being fixedly connected to an adjacent support plate; it also includes a gear that cooperates with the first rack and the second rack, the gear being rotatably connected to the inner wall of the movable plate.

[0016] The principle and effect of this scheme are as follows: (1) In the prior art, during the initial pressurization stage of the autoclave, after the autoclave is closed, compressed steam is introduced into it to establish the initial pressure. Once the required curing temperature is reached, the pressure inside the autoclave will be maintained at a relatively constant level, thereby promoting the hydration reaction of the concrete blocks. After the curing time is over, the autoclave begins to cool down and depressurize. Therefore, the concrete blocks will go through three stages in the autoclave: pressurization, constant pressure and depressurization. (2) When in the pressurization stage, the surface of the concrete blocks begins to harden. In the constant pressure stage, the surface of the blocks has hardened. At this time, the blocks can be misaligned and supported. During the pressurization stage, the pressure inside the autoclave compresses the piston rod of the third cylinder, causing the second rack to mesh with the gear. When the pressure is increased to constant pressure, the pressure inside the autoclave compresses the piston of the first cylinder, causing the first rack to move away from the gear and not mesh with the gear. Then the pressure compresses the piston of the second cylinder, causing the first rack to move downward and drive the support plate to move downward. Since the first rack does not mesh with the gear during the downward movement, the adjacent support plate will not move, thus causing misalignment between the adjacent support plates and forming a gap between them. (3) When the autoclave changes from constant pressure to depressurization, the pressure inside the autoclave decreases, the first rack resets and meshes with the gear, the piston of the second cylinder resets and drives the first rack to reset and move upward, thus causing the gear to rotate and drive the second rack to move downward and compress the reset spring, thereby driving another adjacent support plate to move downward. The support plate that initially moves downward is reset to contact the block. (4) When the autoclave door is opened and the shuttle car transports the block out of the autoclave, the piston of the third cylinder drives the rack to reset, making it away from the gear and not mesh with the gear. Under the action of the reset spring, the second rack drives the support plate to reset, thus causing the adjacent support plates to fit tightly together again and form a plane. (5) By changing the pressure difference in the autoclave, the adjacent support plates are alternately misaligned, creating gaps between adjacent concrete blocks. These gaps increase the contact area between the bottom of the blocks and the steam, helping the steam to penetrate the bottom of the blocks more fully. The misaligned support plates can change the flow path of the steam in the autoclave, allowing the steam to be more evenly distributed to the contact surface and bottom of each block, thus achieving more comprehensive steam curing. (6) By alternating the misalignment of the support plates, excessive concentration of steam in certain areas can be avoided, allowing the steam to enter the lower blocks and improving the steam curing efficiency. (7) Due to the high temperature, high humidity, and high pressure environment inside the autoclave, conventional electrical control systems are prone to failure. This device avoids complex electrical control systems by controlling the alternating position of the support plates through pressure changes, reducing the complexity of manufacturing and making the device safer to operate in the autoclave. (8) As the autoclaving process proceeds, the temperature inside the blocks gradually increases, while the surface of the blocks remains relatively cool. This temperature difference causes the high-temperature steam to condense into water droplets on the surface of the blocks, forming condensate.If condensate accumulates at the bottom of the block during autoclaving, it will cause the bottom of the block to absorb water and expand, leading to deformation or reduced strength. Therefore, the gaps created by the staggered placement of adjacent support plates provide a drainage path for the condensate, preventing excessive accumulation at the bottom of the block and thus avoiding deformation or reduced strength caused by water absorption and expansion.

[0017] Furthermore, it also includes a second drive assembly disposed within the movable plate. The second drive assembly includes a third rack and a fourth cylinder, wherein the piston rod of the fourth cylinder is fixedly connected to the third rack; it also includes a drive gear and a fourth rack, wherein the drive gear is rotatably connected to the inner wall of the movable plate and meshes with the third rack and the fourth rack, and the fourth rack is fixedly connected to its adjacent movable plate.

[0018] The principle and effect of this scheme are as follows: (1) After pressurization in the autoclave, the piston of the fourth cylinder is compressed by the pressure, causing the piston rod to drive the third rack to move, thereby causing the drive gear to rotate and drive the fourth rack to move in the opposite direction, thereby pushing the movable plate connected to the fourth rack to move. (2) During the steam curing process, if the adjacent blocks are directly misaligned by moving the support plate up and down, the contact surface of the blocks will experience greater friction during the up and down movement, which can easily lead to deformation and damage to the contact surface of the blocks. Therefore, by first moving the adjacent movable plates left and right, the adjacent blocks are separated, which helps to reduce the problem of damage to the contact surface. At the same time, the gap formed by the left and right separation of the adjacent blocks also facilitates the entry of steam into the lower blocks.

[0019] Furthermore, each of the first, second, third, and fourth cylinders is equipped with a balance spring, one end of which is fixedly connected to the piston inside the cylinder, and the other end is fixedly connected to the inner wall of the cylinder.

[0020] The principle and effect of this scheme are as follows: since the autoclave needs to be evacuated before pressurization, a balance spring is set to prevent the cylinder piston from moving during the evacuation phase.

[0021] Furthermore, the movable plate is provided with a sliding groove, and the first rack, second rack, third rack and fourth rack are slidably connected to the sliding groove.

[0022] The principle and effect of this scheme are as follows: the slide provides positioning and guidance for the movement of the first rack, the second rack, the third rack and the fourth rack.

[0023] Furthermore, the shelf is provided with a guide groove, and the movable plate is slidably connected to the guide groove.

[0024] The principle and effect of this scheme are as follows: under the drive of the fourth cylinder, the movable plate slides in the guide groove, and the guide groove provides positioning and guidance for the movable plate.

[0025] Furthermore, the load-bearing components on the upper and lower layers of the shelf are arranged alternately.

[0026] The principle and effect of this solution are to increase the number of blocks that the rack can support at one time. At the same time, the staggered arrangement of the upper and lower load-bearing components allows steam to directly act on the lower load-bearing blocks through gaps in the upper load-bearing components.

[0027] Furthermore, a water collection trough is provided at the bottom of the shelf.

[0028] The principle and effect of this solution are as follows: As autoclaving continues, condensate gradually accumulates and eventually drips to the bottom of the autoclave due to gravity. Alkaline substances (such as calcium hydroxide) in the condensate may react chemically with the bottom material, leading to corrosion. Therefore, a collection tank is installed to collect the condensate dripping from the blocks. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the aerated concrete block curing device of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the shuttle vehicle and the cargo rack of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the shelf and the load-bearing component of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the bearing component of the present invention, on which concrete blocks are mounted.

[0033] Figure 5 This is a schematic diagram of the structure of the first driving component of the present invention. Figure 1 ;

[0034] Figure 6 This is a schematic diagram of the structure of the first driving component of the present invention. Figure 2 ;

[0035] Figure 7 This is a schematic diagram of the structure of the second driving component of the present invention;

[0036] Figure 8 This is a schematic diagram of the internal structure of the first driving component and the second driving component of the present invention;

[0037] Figure 9 This is a schematic diagram of the internal structure of the first driving component of the present invention. Figure 1 ;

[0038] Figure 10 This is a schematic diagram of the internal structure of the first driving component of the present invention. Figure 2 .

[0039] The reference numerals in the accompanying drawings include: autoclave 1, transfer car 2, rack 3, load-bearing assembly 4, movable plate 41, support plate 42, first drive assembly 5, first rack 51, first cylinder 52, second cylinder 53, second rack 54, third cylinder 55, return spring 56, second drive assembly 6, third rack 61, fourth cylinder 62, drive gear 63, fourth rack 64, balance spring 7, water collection tank 8, concrete block 9, and limiting groove 10. Detailed Implementation

[0040] The following will describe the concept and technical effects of the present invention clearly and completely with reference to embodiments, so as to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention.

[0041] Example:

[0042] Please see Figure 1 and Figure 4 An aerated concrete block curing device includes an autoclave 1 and a transfer vehicle 2 arranged sequentially from left to right. The autoclave 1 has a guide rail that cooperates with the transfer vehicle 2 to guide the transfer vehicle 2 in and out of the autoclave 1. The transfer vehicle 2 has a carrying rack 3 composed of several profiles, and the bottom of the carrying rack 3 has a water collection tank 8 for collecting condensate. The carrying rack 3 is divided into multiple layers, each layer having nine supporting components 4, each supporting component 4 capable of holding one concrete block 9. Figure 4 As shown in the diagram, each layer can hold 9 blocks. The load-bearing components 4 on the upper and lower layers of the shelf 3 are staggered. When the load-bearing components 4 on the upper layer form a gap, it is convenient for steam to directly act on the blocks on the lower layer through the gap. Of course, it is also possible to adjust according to actual production, to set more load-bearing components 4 on each layer, or to increase the number of layers, so as to increase the number of blocks placed on each layer.

[0043] Please see Figures 4-6 The supporting component 4 includes a movable plate 41 slidably mounted on the frame 3. The frame 3 has a guide groove on its profile for positioning and guiding the movable plate 41. The movable plate 41 is slidably connected to the guide groove. The movable plate 41 has a sliding groove, and a support plate 42 is slidably connected to the sliding groove. Six support plates 42 are slidably connected to each movable plate 41, and the six support plates 42 are tightly fitted together in the initial state to form a plane without gaps. The concrete block 9 is placed on this plane, so that the bottom of the block is supported by the support plate, which can reduce the deformation of the block due to insufficient bottom support before it enters the autoclave 1. At the same time, it can also support the block after it enters the autoclave 1, before the surface is completely hardened.

[0044] Please see Figure 8 , Figure 9 and Figure 10 The system also includes a first drive assembly 5, which is disposed within the movable plate 41. The first drive assembly 5 includes a first rack 51 and a first cylinder 52 for driving the first rack 51 to move left and right. The piston rod of the first cylinder 52 is slidably connected to the first rack 51, and the first rack 51 is fixedly connected to the support plate 42. The system also includes a second cylinder 53 for driving the first rack 51 to move up and down. The piston rod of the second cylinder 53 is slidably connected to the first rack 51. The system also includes a second rack 54 and a third cylinder 55 for driving the second rack 54 to move left and right. The piston rod of the third cylinder 55 is slidably connected to the second rack 54. The second rack 54 is connected to a return spring 56. The free end of the return spring 56 is connected to the movable plate 41, and the second rack 54 is fixedly connected to the adjacent support plate 42. The system also includes a gear 57 that cooperates with the first rack 51 and the second rack 54. The gear 57 is rotatably connected to the inner wall of the movable plate 41. It should be noted that vertical limiting grooves 10 are provided on the piston rods of the first cylinder 52 and the third cylinder 55. The first rack 51 and the second rack 54 are respectively located in the corresponding limiting grooves 10 and are slidably connected to the limiting grooves 10. However, the first rack 51 and the second rack 54 maintain a certain degree of freedom with respect to the limiting grooves 10 and can slide left and right within the limiting grooves 10. Similarly, a transverse limiting groove 10 is provided on the piston rod of the second cylinder 53, and one end of the first rack 51 can slide left and right within the limiting groove 10. It should also be noted that the pressure in the first cylinder 52 is equal to the pressure in the second cylinder 53. For example, both are 1.5 MPa. To ensure the sealing of each cylinder, sealing rings or other measures can be provided internally. Those skilled in the art can also use equivalent technical means to achieve sealing. Meanwhile, a balance spring 7 is provided in each of the first cylinder 52, the second cylinder 53, the third cylinder 55, and the fourth cylinder 62. One end of the balance spring 7 is fixedly connected to the piston inside the cylinder, and the other end is fixedly connected to the inner wall of the cylinder. Since the autoclave 1 needs to be evacuated before pressurization, the balance spring 7 is used to prevent the piston of the cylinder from moving during the evacuation phase.

[0045] It is known that the pressure of the autoclave 1 during the autoclaving of concrete is typically between 1.0 and 2.5 MPa. Initially, the autoclave 1 begins to evacuate and pressurize, and the surface of the concrete blocks begins to harden. During the constant pressure stage (internal pressure of 2 MPa), the block surface has hardened. At this point, the blocks can be offset and supported. During the pressurization stage, the pressure inside the autoclave compresses the piston rod of the third cylinder 55, causing the second rack 54 to mesh with the gear. When the pressure reaches constant pressure, the pressure inside the autoclave compresses the piston of the first cylinder 52, causing the first rack 51 to move away from the gear, thus disengaging it from the gear. Then, the pressure compresses the piston of the second cylinder 53, causing the first rack 51 to move downwards, driving the support plate 42 downwards. Because the first rack 51 does not mesh with the gear during its downward movement, the support plate 42 adjacent to it will not move, resulting in misalignment between adjacent support plates 42, creating a gap between them (e.g., ...). Figure 5 As shown). When the autoclave 1 transitions from constant pressure to depressurization, the pressure inside the autoclave decreases (the pressure inside the autoclave is less than 2 MPa). The first rack 5141 resets and engages with the gear. The piston of the second cylinder 53 resets, causing the first rack 51 to move upwards, thereby rotating the gear and causing the second rack 54 to move downwards and compress the reset spring 56. This, in turn, causes another adjacent support plate 42 to move downwards. The support plate 42 that initially moved downwards then resets to contact the block (as shown). Figure 6 (As shown). When the reactor door is opened, after the transfer car 2 transports the blocks out of the reactor, the piston of the third cylinder 55 drives the rack to reset, moving it away from the gear and disengaging it. Under the action of the reset spring 56, the second rack 54 drives the support plate 42 to reset, thereby causing the adjacent support plates 42 to fit tightly together again and form a plane (as shown). Figure 4(As shown). By varying the pressure difference in the autoclave 1, adjacent support plates 42 are alternately misaligned, creating gaps between adjacent concrete blocks. These gaps increase the contact area between the bottom of the blocks and the steam, facilitating more thorough steam penetration. The misaligned support plates 42 alter the steam flow path within the autoclave 1, allowing for more even distribution of steam to the contact surface and bottom of each block, thus achieving more comprehensive steam curing. The alternating misalignment of the support plates 42 prevents excessive steam concentration in certain areas, allowing steam to penetrate lower blocks and improving curing efficiency. Due to the high temperature, high humidity, and high pressure environment inside the autoclave, conventional electrical control systems are prone to failure. This device controls the alternating position of the support plates 42 through pressure changes, avoiding a complex electrical control system, reducing manufacturing complexity, and making the device safer to operate within the autoclave 1. As the autoclaving process progresses, the internal temperature of the blocks gradually increases, while the block surface remains relatively cool. This temperature difference causes the high-temperature steam to condense into water droplets on the block surface, forming condensate. If condensate accumulates at the bottom of the blocks during autoclaving, it can cause the bottom of the blocks to absorb water and expand, leading to deformation or reduced strength. Therefore, the gaps created by the staggered placement of adjacent support plates 42 provide a drainage path for the condensate, preventing excessive accumulation at the bottom of the blocks and thus avoiding deformation or strength reduction caused by water absorption and expansion. Finally, after autoclaving, the support plates 42 can be reset, and the blocks can be placed back on a flat surface, allowing for neat arrangement and facilitating subsequent handling and stacking.

[0046] Please see Figure 8 The system also includes a second drive assembly 6 located within the movable plate 41. This second drive assembly 6 drives adjacent movable plates 41 to move relative to or towards each other. During steam curing, if adjacent blocks are directly misaligned by moving the support plate 42 up and down, significant friction will occur on the contact surfaces of the blocks during this movement, easily leading to deformation and damage. Therefore, firstly, the adjacent movable plates 41 are moved left and right to separate the adjacent blocks, which helps reduce the problem of contact surface damage. Simultaneously, the gaps formed by the left and right separation of adjacent blocks also facilitate the entry of steam into the lower blocks. The second drive assembly 6 includes a third rack 61 and a fourth cylinder 62. The piston rod of the fourth cylinder 62 is fixedly connected to the third rack 61. It also includes a drive gear 63 and a fourth rack 64. The drive gear 63 is rotatably connected to the inner wall of the movable plate 41 and meshes with the third rack 61 and the fourth rack 64. The fourth rack 64 is fixedly connected to its adjacent movable plate 41. It should be noted that the pressure inside the fourth cylinder 62 is equal to the standard atmospheric pressure. After the pressure is increased in the autoclave 1, the piston of the fourth cylinder 62 is compressed by the pressure, which causes the piston rod to drive the third rack 61 to move, thereby causing the drive gear 63 to rotate and drive the fourth rack 64 to move in the opposite direction, thereby pushing the movable plate 41 connected to the fourth rack 64 to move.

[0047] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A curing device for aerated concrete blocks, comprising an autoclave (1) and a shuttle vehicle (2), characterized in that, Also includes: A cargo rack (3) is mounted on the shuttle bus (2); The support assembly (4) includes a movable plate (41) disposed on the shelf (3), the movable plate (41) being movably connected to multiple support plates (42), and adjacent support plates (42) being tightly fitted together; The first driving component (5) is used to drive the support plate (42) to move up and down and to make adjacent support plates (42) misaligned; the pressure difference of the autoclave (1) causes the adjacent support plates (42) to be alternately misaligned. The first drive assembly (5) is disposed within the movable plate (41); the first drive assembly (5) includes a first rack (51) and a first cylinder (52) for driving the first rack (51) to move left and right, the piston rod of the first cylinder (52) is slidably connected to the first rack (51), and the first rack (51) is fixedly connected to the support plate (42); it also includes a second cylinder (53) for driving the first rack (51) to move up and down, the piston rod of the second cylinder (53) is slidably connected to the first rack (51); it also includes a second rack (54) and a cylinder for driving the second rack (51) to move up and down. 4) A third cylinder (55) that moves left and right. The piston rod of the third cylinder (55) is slidably connected to the second rack (54). The second rack (54) is connected to a return spring (56). The free end of the return spring (56) is connected to the movable plate (41). The second rack (54) is fixedly connected to the adjacent support plate (42). It also includes a gear (57) that cooperates with the first rack (51) and the second rack (54). The gear (57) is rotatably connected to the inner wall of the movable plate (41). The pressure in the first cylinder (52) is equal to the pressure in the second cylinder (53).

2. The aerated concrete block curing device according to claim 1, characterized in that: The number of the bearing components (4) is multiple, and the multiple bearing components (4) are arranged sequentially from bottom to top on the shelf (3).

3. The aerated concrete block curing device according to claim 1, characterized in that: It also includes a second drive assembly (6) disposed within the movable plate (41), the second drive assembly (6) including a third rack (61) and a fourth cylinder (62), the piston rod of the fourth cylinder (62) being fixedly connected to the third rack (61); it also includes a drive gear (63) and a fourth rack (64), the drive gear (63) being rotatably connected to the inner wall of the movable plate (41) and meshing with the third rack (61) and the fourth rack (64), the fourth rack (64) being fixedly connected to its adjacent movable plate (41).

4. The aerated concrete block curing device according to claim 1, characterized in that: The first cylinder (52), the second cylinder (53), the third cylinder (55) and the fourth cylinder (62) are all equipped with a balance spring (7). One end of the balance spring (7) is fixedly connected to the piston inside the cylinder, and the other end is fixedly connected to the inner wall of the cylinder.

5. The aerated concrete block curing device according to claim 3, characterized in that: The movable plate (41) is provided with a sliding groove, and the first rack (51), the second rack (54), the third rack (61) and the fourth rack (64) are slidably connected to the sliding groove respectively.

6. The aerated concrete block curing device according to claim 3, characterized in that: The shelf (3) has a guide groove, and the movable plate (41) is slidably connected to the guide groove.

7. The aerated concrete block curing device according to claim 5, characterized in that: The load-bearing components (4) located on the upper and lower layers of the shelf (3) are staggered.

8. The aerated concrete block curing device according to claim 1, characterized in that: The bottom of the shelf (3) is provided with a water collection tank (8).

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