Batch steam curing device for aerated concrete block

Abstract

The application belongs to the technical field of concrete block processing, and discloses a batch steam curing device for aerated concrete blocks, which comprises a curing box, wherein the curing box is provided in a cylindrical structure, a steam curing mechanism is arranged at the bottom of the curing box, a plurality of bearing frames are arranged in the inner cavity of the curing box, the bearing frames are provided in a flat and H-shaped structure, the opposite two side walls of the bearing frames are kept in a through state, a control mechanism is arranged in the inner cavity of the curing box, and the control mechanism is composed of a positioning assembly, a lifting assembly and a turning assembly. The turning assembly and the lifting assembly are matched with each other, the bearing frame can be controlled to rotate by 180 degrees at the top and the bottom respectively, the concrete blocks placed in the bearing frame can be turned over, the surfaces of the concrete blocks can be fully contacted with high-temperature steam, and the curing effect is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of concrete block processing technology, specifically a batch steam curing device for aerated concrete blocks. Background Technology

[0002] Concrete blocks are widely used in building construction. Currently, the curing methods for concrete blocks generally include steam curing, natural curing, and other methods to give them a certain compressive strength. Among these, steam curing has the best effect.

[0003] When steam curing batches of concrete blocks, multiple blocks are typically stacked directly in a steam curing chamber, and then high-temperature steam is introduced for curing. However, this existing steam curing method cannot adjust the position and height of individual concrete blocks, resulting in inconsistent curing rates at different locations. Furthermore, during curing, the bottom surface of the concrete blocks remains in contact with the supporting plate, preventing sufficient contact between the bottom surface and the steam, further reducing curing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a batch steam curing device for aerated concrete blocks to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A batch steam curing device for aerated concrete blocks includes a curing box with a cylindrical structure. Support legs are fixedly installed around the curing box. An access port is provided on the side wall of the curing box, and a side door is hinged to the outside of the access port. A steam curing mechanism is located at the bottom of the curing box to deliver steam to the inner cavity of the curing box. Multiple support frames are provided in the inner cavity of the curing box. The support frames are flat and U-shaped, with their opposite side walls remaining continuous. A control mechanism is provided in the inner cavity of the curing box, and the control mechanism includes a positioning... The system comprises a positioning component, a lifting component, and a flipping component. The positioning component is located between two opposing inner sidewalls of the curing box and is connected to the support frame. The positioning component is used to control multiple support frames to be distributed in a ring with equal spacing inside the curing box. The lifting component is located inside the curing box and is connected to the positioning component. The lifting component is used to control multiple support frames to rotate inside the curing box. The flipping component is located inside the curing box and is connected to the positioning component. When the support frame rotates to the lowest and highest positions inside the curing box, the flipping component controls the support frame and the concrete blocks placed inside the support frame to rotate 180 degrees respectively.

[0007] As a further aspect of the present invention: the steam curing mechanism includes a guide pipe fixedly installed at the bottom of the curing box, a steam generator is provided below the curing box, the output end of the steam generator is connected to a conduit, and the end of the conduit away from the steam generator extends into the curing box and is connected to the guide pipe.

[0008] As a further aspect of the present invention: the positioning component includes two fixing rings rotatably mounted on opposite inner sidewalls of the curing box, and positioning shafts fixedly mounted on opposite ends of the support frame, with the end of the positioning shaft away from the support frame rotatably mounted on the surface of the fixing rings.

[0009] As a further embodiment of the present invention: the lifting assembly includes a positioning gear ring fixedly installed on the annular sidewall of the fixing ring, a transmission column rotatably installed in the inner cavity of the curing box, a transmission gear plate fixedly installed on the surface of the transmission column, the transmission gear plate meshing with the positioning gear ring, and one end of the transmission column extending to the outside of the curing box and connected to a motor.

[0010] As a further embodiment of the present invention: the flipping assembly includes a guide gear plate fixedly mounted on the surface of the positioning shaft, a first support rod fixedly mounted on the inner wall of the curing box, an arc-shaped first guide rack fixedly mounted on the surface of the first support rod, the first guide rack being located at the top of the curing box, a second support rod fixedly mounted on the inner wall of the curing box, an arc-shaped second guide rack fixedly mounted on the surface of the second support rod, the second guide rack being located at the bottom of the curing box, the first guide rack and the second guide rack respectively meshing with the guide gear plate, and a stop bar fixedly mounted on one side of the inner cavity of the bearing frame.

[0011] As a further aspect of the present invention: the surface of the stop bar is provided with a plurality of positioning springs arranged in parallel.

[0012] As a further aspect of the present invention: an annular limiting groove is provided on the inner side wall of the maintenance box, and a limiting ring is rotatably installed in the limiting groove, the limiting ring extending to the outside of the limiting groove and being fixedly connected to the fixing ring.

[0013] As a further embodiment of the present invention, the curing box is configured as a hollow annular structure.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting the positioning component and the lifting component to cooperate with each other, the bearing frame and the concrete blocks stacked inside it can be controlled to rotate in the vertical plane in the curing box. In this way, the concrete blocks in each bearing frame can be controlled to contact the high-temperature steam at different positions and heights, which effectively improves the curing effect of high-temperature steam on batches of concrete blocks and solves the problem that the position and height of each concrete block cannot be adjusted and the curing rate of concrete blocks at different positions cannot be kept consistent.

[0015] By setting up a flipping component and a lifting component to work together, the support frame can be rotated 180 degrees at the top and bottom respectively. This allows the concrete blocks stacked inside the support frame to be flipped, ensuring that all surfaces of the concrete blocks can fully contact the high-temperature steam. This effectively improves the curing effect and solves the problem that the bottom surface of the concrete blocks is always in contact with the support plate, preventing the bottom surface of the concrete blocks from fully contacting the steam and thus reducing curing efficiency.

[0016] By configuring the lifting components and the loading / unloading ports in tandem, multiple concrete blocks can be sequentially stacked onto the various support frames inside the curing box at the loading / unloading ports. Furthermore, concrete blocks can be directly removed from the surface of each support frame at the loading / unloading ports, preventing workers from being unable to stack the concrete blocks to higher positions. This reduces the workload for workers. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a batch steam curing device for aerated concrete blocks provided in an embodiment of the present invention.

[0018] Figure 2 This is a front view schematic diagram of a batch steam curing device for aerated concrete blocks provided in an embodiment of the present invention.

[0019] Figure 3 This is a schematic cross-sectional view of the curing chamber in a batch steam curing device for aerated concrete blocks provided in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the support frame and its connection structure in a batch steam curing device for aerated concrete blocks provided in an embodiment of the present invention. Figure 1 .

[0021] Figure 5 This is a schematic diagram of the structure of a batch steam curing device for aerated concrete blocks provided in an embodiment of the present invention, showing the support frame and its connection structure. Figure 2 .

[0022] Figure 6 This is a schematic diagram of the support frame and its connection structure in a batch steam curing device for aerated concrete blocks provided in an embodiment of the present invention. Figure 3 .

[0023] The components are: 1-curing box, 11-release port, 12-side door, 2-steam curing mechanism, 21-guide pipe, 22-steam generator, 23-conduit pipe, 3-bearing frame, 4-control mechanism, 41-positioning component, 411-fixing ring, 412-positioning shaft, 42-lifting component, 421-positioning gear ring, 422-transmission column, 423-transmission gear plate, 424-motor, 43-flipping component, 431-guide gear plate, 432-first support rod, 433-first guide rack, 434-second support rod, 435-second guide rack, 436-stop bar, 5-positioning spring, 6-limiting ring. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0025] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0026] like Figure 1 , Figure 2 , Figure 5 The diagram shown illustrates the structure of a batch steam curing device for aerated concrete blocks according to an embodiment of the present invention. It includes a curing box 1, which is a cylindrical structure. Support legs are fixedly installed around the curing box 1. A loading / unloading port 11 is provided on the side wall of the curing box 1, and a side door 12 is hinged to the outside of the loading / unloading port 11. A steam curing mechanism 2 is provided at the bottom of the curing box 1 to deliver steam to the inner cavity of the curing box 1. Multiple support frames 3 are provided in the inner cavity of the curing box 1. The support frames 3 are flat and U-shaped, with their opposite side walls remaining open. A control mechanism 4 is provided in the inner cavity of the curing box 1. It consists of a positioning component 41, a lifting component 42, and a flipping component 43. The positioning component 41 is located between two opposing inner sidewalls of the curing box 1 and is connected to the support frame 3. The positioning component 41 is used to control multiple support frames 3 to be distributed in a ring at equal intervals inside the curing box 1. The lifting component 42 is located inside the curing box 1 and is connected to the positioning component 41. The lifting component 42 is used to control multiple support frames 3 to rotate inside the curing box 1. The flipping component 43 is located inside the curing box 1 and is connected to the positioning component 41. When the support frame 3 rotates to the lowest and highest positions inside the curing box 1, the flipping component 43 controls the support frame 3 and the concrete blocks placed inside the support frame 3 to rotate 180 degrees respectively.

[0027] The positioning component 41 supports and positions multiple support frames 3 within the curing chamber 1. These support frames 3 are arranged in a ring with equal spacing within the curing chamber 1. When curing concrete blocks, the side door 12 is opened, aligning one support frame 3 with the pick-up / placement port 11. Workers can then easily place concrete blocks into the inner cavity of the support frame 3. After the support frames 3 are stacked, the lifting component 42 and the positioning component 41 work together to control the multiple support frames 3 to rotate synchronously at a certain angle, aligning another support frame 3 with the pick-up / placement port 11 again. Workers can then place concrete blocks onto another support frame 3, repeating this process to conveniently stack batches of concrete blocks into the inner cavities of the multiple support frames 3. After the concrete blocks are stacked, the side door 12 is closed, at which point the pick-up / placement port 11 is sealed. The steam curing mechanism 2 fills the inner cavity of the curing chamber 1 with high-temperature steam. The high-temperature steam comes into full contact with the concrete blocks stacked within the support frames 3, enabling efficient curing of the concrete blocks. During steam curing, the lifting assembly 42 controls multiple support frames 3 to rotate within the curing chamber 1. The support frames 3 drive the concrete blocks to rotate synchronously, allowing for omnidirectional adjustment of the concrete block height and ensuring a consistent curing rate for all blocks. Under the weight of the concrete blocks, the support frames 3 remain stably horizontal during rotation. When the support frames 3 reach their highest and lowest points within the curing chamber 1, the flipping assembly 43 controls their rotation 180 degrees in a specific direction. This causes the concrete blocks inside to rotate 180 degrees synchronously, ensuring that different surfaces of the blocks are in contact with the support frames 3, facilitating contact between all surfaces and the high-temperature steam and further improving the curing effect. The flipping assembly 43 restricts the rotation direction of the support frames 3 at the top and bottom of the curing chamber 1, effectively preventing the concrete blocks inside from falling during rotation. After the curing is completed, the side door 12 is opened. As the support frame 3 rotates intermittently, the staff can easily remove the concrete blocks from the inner cavity of the support frame 3 at the pick-up and drop-off port 11.

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, in a preferred embodiment of the present invention, the steam curing mechanism 2 includes a guide pipe 21 fixedly installed at the bottom of the curing box 1, a steam generator 22 is provided below the curing box 1, and a conduit 23 is connected to the output end of the steam generator 22. The end of the conduit 23 away from the steam generator 22 extends into the curing box 1 and is connected to the guide pipe 21.

[0029] When in use, the steam generator 22 generates high-temperature steam, which is then transported through the conduit 23 to the guide pipe 21. The guide pipe 21 further transports the high-temperature steam to the inner cavity of the curing box 1, where the high-temperature steam can efficiently cure the concrete blocks inside the curing box 1.

[0030] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, in a preferred embodiment of the present invention, the positioning component 41 includes a fixing ring 411 rotatably mounted on the two opposing inner sidewalls of the curing box 1, and a positioning shaft 412 fixedly mounted on both opposite ends of the support frame 3, with the end of the positioning shaft 412 away from the support frame 2 rotatably mounted on the surface of the fixing ring 411.

[0031] The fixing ring 411 supports and positions the positioning shaft 412. The positioning shafts 412 on both sides cooperate with each other to stably install multiple support frames 3 in a ring shape between the two sets of fixing rings 411. During the loading and unloading of concrete blocks and steam curing, the lifting component 42 controls the two fixing rings 411 to rotate stably around their own axes. The two fixing rings 411 drive the multiple support frames 3 to rotate synchronously in the vertical plane. Under the gravity of the concrete blocks, the support frames 3 always maintain a stable horizontal state during rotation, effectively preventing the concrete blocks from falling off the surface of the support frames 3. Furthermore, by adjusting the relative position of the positioning shaft 412 and the support frames 3, the center of gravity of the concrete blocks and the support frames 3 as a whole is located on one side of the positioning shaft 412, and the support frames 3 maintain a certain tilt angle, further preventing the concrete blocks from falling off.

[0032] like Figure 1 , Figure 2 , Figure 4 As shown, in a preferred embodiment of the present invention, the lifting assembly 42 includes a positioning gear ring 421 fixedly installed on the annular sidewall of the fixing ring 411, a transmission column 422 rotatably installed in the inner cavity of the curing box 1, a transmission gear plate 423 fixedly installed on the surface of the transmission column 422, the transmission gear plate 423 meshing with the positioning gear ring 421, and one end of the transmission column 422 extending to the outside of the curing box 1 and connected to a motor 424.

[0033] In use, the motor 424 drives the transmission column 422 to rotate around its own axis, and the transmission column 422 drives the transmission gear plate 423 to rotate synchronously. The transmission gear plate 423 meshes with the positioning gear ring 421, which can drive the two fixed rings 411 to rotate synchronously around their own axes respectively.

[0034] like Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, in a preferred embodiment of the present invention, the flipping assembly 43 includes a guide gear plate 431 fixedly mounted on the surface of the positioning shaft 412, a first support rod 432 fixedly mounted on the inner side wall of the curing box 1, an arc-shaped first guide rack 433 fixedly mounted on the surface of the first support rod 432, the first guide rack 433 being located at the top inside the curing box 1, a second support rod 434 fixedly mounted on the inner side wall of the curing box 1, an arc-shaped second guide rack 435 fixedly mounted on the surface of the second support rod 434, the second guide rack 435 being located at the bottom inside the curing box 1, the first guide rack 433 and the second guide rack 435 respectively meshing with the guide gear plate 431, and a stop bar 436 fixedly mounted on one side of the inner cavity of the bearing frame 3.

[0035] The stop bar 436 is located on one side of the inner cavity of the support frame 3, allowing workers to stack and retrieve concrete blocks from the other side of the inner cavity. When the fixing ring 411 rotates, it drives the positioning shaft 412 and the guide gear plate 431 to rotate synchronously. When the guide gear plate 431 moves to the top of the curing box 1, it rolls along the surface of the first guide rack 433. The guide gear plate 431 and the positioning shaft 412 work together to rotate the support frame 3 180 degrees. As the support frame 3 rotates, it drives the concrete blocks to rotate synchronously. The stop bar 436 on one side of the inner cavity of the support frame 3 restricts the concrete blocks, effectively preventing them from falling out of the inner cavity. After rotating 180 degrees, the other side of the concrete block is in contact with the bottom wall of the support frame 3. When the support frame 3 and the positioning shaft 412 move to the bottom of the curing box 1, the guide gear plate 431 rolls along the surface of the second guide rack 435, allowing the support frame 3 and the concrete blocks to rotate another 180 degrees. The first guide rack 433 and the second guide rack 435 can strictly control the rotation direction of the support frame 3, thereby restricting the concrete blocks during the rotation process by the stop bar 436, effectively preventing the concrete blocks from slipping off the surface of the support frame 3. This cycle repeats, allowing all surfaces of the concrete blocks to fully contact the high-temperature steam, further improving the steam curing effect.

[0036] like Figure 5 , Figure 6 As shown, in a preferred embodiment of the present invention, the surface of the stop bar 436 is provided with a plurality of positioning springs 5 ​​arranged in parallel.

[0037] During the flipping process, one side wall of the concrete block is in contact with the baffle 436. After flipping 180 degrees, the positioning spring 5 can control the relative position between the concrete block and the baffle 436 to avoid the concrete block and the baffle 436 from being in contact and creating a dead angle for steam curing.

[0038] like Figure 3 , Figure 4As shown, in a preferred embodiment of the present invention, the inner wall of the maintenance box 1 is provided with an annular limiting groove, and a limiting ring 6 is rotatably installed in the limiting groove. The limiting ring 6 extends to the outside of the limiting groove and is fixedly connected to the fixing ring 411.

[0039] When the fixed ring 411 rotates, the limiting ring 6 rotates synchronously in the limiting groove, which can further improve the stability of the fixed ring 411 when it rotates.

[0040] like Figure 1 , Figure 2 As shown, in a preferred embodiment of the present invention, the curing box 1 is configured as a hollow annular structure.

[0041] The hollow ring structure can further compress the internal space of the curing chamber 1, avoid the waste of high-temperature steam in the inner cavity of the curing chamber 1, and allow the high-temperature steam to fully contact the concrete blocks.

[0042] The working principle of this invention is as follows: the fixed ring 411 supports and positions the positioning shaft 412. The positioning shafts 412 on both sides cooperate with each other to stably install multiple bearing frames 3 in a ring shape between the two sets of fixed rings 411. When picking up and placing concrete blocks and steam curing, the motor 424 drives the transmission column 422 to rotate around its own axis. The transmission column 422 drives the transmission gear plate 423 to rotate synchronously. The transmission gear plate 423 meshes with the positioning gear ring 421 to drive the two fixed rings 411 to rotate synchronously around their own axes respectively.

[0043] When curing concrete blocks, the side door 12 is opened, aligning one support frame 3 with the pick-up / placement port 11. Workers can then easily place concrete blocks into the inner cavity of the support frame 3. After the support frame 3 is fully stacked, multiple support frames 3 are simultaneously rotated at a certain angle, aligning another support frame 3 with the pick-up / placement port 11 again. Workers can then place concrete blocks onto the other support frame 3 again, repeating this process to conveniently stack batches of concrete blocks into the inner cavities of multiple support frames 3. After the concrete blocks are stacked, the side door 12 is closed, at which point the pick-up / placement port 11 is sealed. The steam generator 22 produces high-temperature steam, which is transported through the conduit 23 to the discharge pipe 21. The discharge pipe 21 further delivers the high-temperature steam to the inner cavity of the curing chamber 1, allowing for efficient curing of the concrete blocks within the curing chamber 1.

[0044] During steam curing, multiple support frames 3 rotate within the curing chamber 1. The support frames 3 drive the concrete blocks to rotate synchronously, allowing for omnidirectional adjustment of the concrete block's position and height, ensuring a consistent curing rate for all blocks. Under the weight of the concrete blocks, the support frames 3 remain stably horizontal during rotation. When the support frames 3 rotate to their highest and lowest points within the curing chamber 1, the guide toothed disc 431 rolls along the surface of the first guide rack 433. The guide toothed disc 431, in conjunction with the positioning shaft 412, drives the support frames 3 to rotate 180 degrees. As the support frames 3 rotate, the concrete blocks rotate synchronously. A retaining strip 436 on one side of the support frame 3's inner cavity restricts the concrete blocks, effectively preventing them from falling out of the support frame 3's inner cavity. After rotating 180 degrees, the other side of the concrete block adheres to the bottom wall of the support frame 3. When the support frame 3 and the positioning shaft 412 move to the bottom of the curing chamber 1, the guide toothed disc 431 rolls along the surface of the second guide toothed rack 435, which can again control the support frame 3 and the concrete block to rotate 180 degrees. The first guide toothed rack 433 and the second guide toothed rack 435 can strictly control the rotation direction of the support frame 3, thereby allowing the stop bar 436 to restrict the concrete block during the rotation process, effectively preventing the concrete block from slipping off the surface of the support frame 3. This cycle repeats, allowing all surfaces of the concrete block to fully contact the high-temperature steam, further improving the steam curing effect.

[0045] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A batch steam curing device for aerated concrete blocks, comprising a curing box (1), wherein the curing box (1) is configured as a cylindrical structure, and support legs are fixedly installed around the curing box (1) respectively, and a loading / unloading port (11) is provided on the side wall of the curing box (1), and a side door (12) is hingedly installed on the outside of the loading / unloading port (11), characterized in that, The bottom of the curing box (1) is provided with a steam curing mechanism (2), which is used to deliver steam to the inner cavity of the curing box (1); The inner cavity of the curing box (1) is provided with multiple support frames (3), and the support frames (3) are configured as flat U-shaped structures, with the opposite side walls of the support frames (3) remaining in a continuous state; The maintenance box (1) is equipped with a control mechanism (4) in its inner cavity. The control mechanism (4) consists of a positioning component (41), a lifting component (42), and a flipping component (43). The positioning component (41) is located between the two opposite inner sidewalls of the curing box (1) and connected to the support frame (3). The positioning component (41) is used to control the multiple support frames (3) to be distributed in a ring at equal intervals in the inner cavity of the curing box (1). The lifting assembly (42) is located inside the curing box (1) and connected to the positioning assembly (41). The lifting assembly (42) is used to control the rotation of multiple support frames (3) inside the curing box (1). The flipping assembly (43) is located in the inner cavity of the curing box (1) and is connected to the positioning assembly (41). When the support frame (3) rotates to the lowest and highest positions in the inner cavity of the curing box (1), the flipping assembly (43) controls the support frame (3) and the concrete block placed in the support frame (3) to rotate 180 degrees respectively.

2. The batch steam curing device for aerated concrete blocks according to claim 1, characterized in that, The steam curing mechanism (2) includes a guide pipe (21) fixedly installed at the bottom of the curing box (1). A steam generator (22) is provided below the curing box (1). The output end of the steam generator (22) is connected to a conduit (23). One end of the conduit (23) away from the steam generator (22) extends into the curing box (1) and is connected to the guide pipe (21).

3. The batch steam curing device for aerated concrete blocks according to claim 1, characterized in that, The positioning component (41) includes a fixing ring (411) that is rotatably installed on the two inner sidewalls opposite to the curing box (1), and a positioning shaft (412) that is fixedly installed on both opposite ends of the support frame (3). The end of the positioning shaft (412) away from the support frame (2) is rotatably installed on the surface of the fixing ring (411).

4. The batch steam curing device for aerated concrete blocks according to claim 3, characterized in that, The lifting assembly (42) includes a positioning gear ring (421) fixedly installed on the annular sidewall of the fixing ring (411), a transmission column (422) is rotatably installed in the inner cavity of the maintenance box (1), a transmission gear plate (423) is fixedly installed on the surface of the transmission column (422), the transmission gear plate (423) is meshed with the positioning gear ring (421), and one end of the transmission column (422) extends to the outside of the maintenance box (1) and is connected to a motor (424).

5. A batch steam curing device for aerated concrete blocks according to claim 3, characterized in that, The flipping assembly (43) includes a guide gear plate (431) fixedly mounted on the surface of the positioning shaft (412), a first support rod (432) fixedly mounted on the inner wall of the curing box (1), an arc-shaped first guide rack (433) fixedly mounted on the surface of the first support rod (432), the first guide rack (433) being located at the top inside the curing box (1), a second support rod (434) fixedly mounted on the inner wall of the curing box (1), an arc-shaped second guide rack (435) fixedly mounted on the surface of the second support rod (434), the second guide rack (435) being located at the bottom inside the curing box (1), the first guide rack (433) and the second guide rack (435) respectively meshing with the guide gear plate (431), and a stop bar (436) fixedly mounted on one side of the inner cavity of the bearing frame (3).

6. The batch steam curing device for aerated concrete blocks according to claim 1, characterized in that, The surface of the stop bar (436) is provided with a plurality of positioning springs (5) arranged in parallel.

7. A batch steam curing device for aerated concrete blocks according to claim 3, characterized in that, The inner wall of the maintenance box (1) is provided with an annular limiting groove, and a limiting ring (6) is rotatably installed in the limiting groove. The limiting ring (6) extends to the outside of the limiting groove and is fixedly connected to the fixing ring (411).

8. A batch steam curing device for aerated concrete blocks according to claim 1, characterized in that, The curing box (1) is configured as a hollow ring structure.

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