Sectional cooling type kiln
By designing a segmented cooling roller kiln, the problems of uneven cooling and low production efficiency of foamed ceramic products have been solved, achieving more efficient and uniform cooling and production, and reducing energy consumption and costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-24
AI Technical Summary
When producing foamed ceramics, existing kilns have large differences in cooling rates among different parts of the product, which can easily lead to cracking and deformation. In addition, the production cycle is slow, the output is low, the kiln body is long, and it occupies a lot of workshop space.
The segmented cooling roller kiln includes a firing section, a first cooling section, a transition section, a second cooling section, and an emergency section. The kiln furniture and products are cooled separately using equipment such as forklifts, demolding rollers, and clamping machines. The kiln furniture is recovered and re-loaded using a return plate line. The emergency section is used for troubleshooting and kiln furniture storage.
It improves product cooling uniformity, reduces energy consumption, increases production efficiency, shortens production cycle, increases capacity and output value, reduces cracking and deformation, and simplifies operation process.
Smart Images
Figure CN224034391U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foamed ceramic kiln technology, and in particular to a segmented cooling roller kiln for producing foamed ceramics. Background Technology
[0002] Most existing kilns use a kiln furniture cooling system to produce foamed ceramics. Because the top of the product is open while the sides and bottom are tightly enclosed by the kiln furniture, the cooling rates of different parts of the product vary significantly, making it prone to quality problems such as cracking and deformation. In addition, traditional kilns also suffer from the problems of long kiln bodies, occupying a long workshop length, slow production cycle, and low output.
[0003] Therefore, the existing kilns still need further improvement and refinement. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a segmented cooling roller kiln for producing foamed ceramics.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A segmented cooling kiln mainly includes a firing section, a first cooling section, a transition section, a second cooling section, an emergency section, and a return plate line. The firing section, first cooling section, and transition section are arranged sequentially. The second cooling section is located after the transition section, and at least two sets are provided. The two sets of second cooling sections are located on opposite sides of the firing section. The emergency section is located after the transition section, and at least one set is provided. The emergency section is located between the two sets of second cooling sections and is aligned with the firing section on the same axis. The return plate line is located below the firing section, first cooling section, transition section, and emergency section, and is used to recover the kiln furniture and return it to the feeding station. The transition section separates the fired kiln furniture from the product and transports the kiln furniture and product to the emergency section, or transports the kiln furniture to the return plate line or the emergency section and transports the product to the second cooling section.
[0007] Specifically, the transition section mainly includes a frame, and a forklift conveyor, a demolding roller table, a clamping machine, and a transfer machine mounted on the frame. The frame is located between the outlet of the first cooling section and the inlet of the second cooling section and the inlet of the emergency section. The forklift conveyor transports the kiln furniture and products from the outlet of the first cooling section to the demolding roller table via translation and lifting. After demolding, the kiln furniture is transported to the return plate line below the outlet of the first cooling section, or to the transfer machine. The demolding roller table lowers the kiln furniture retaining edges to achieve demolding. The clamping machine clamps the demolded products and transports them to the second cooling section via translation and lifting. The transfer machine transports the kiln furniture and products, or the kiln furniture, to the emergency section via translation and lifting.
[0008] Furthermore, the return plate line is mainly used to recover kiln furniture and transport it to the inlet of the material feeder at the kiln head for re-feeding. The return plate line mainly includes guide rails, elevators, lifting roller platforms, fixed roller platforms, and transfer roller platforms. The lifting roller platforms are installed on the elevators. The elevators are located before the material feeding stage and at the emergency section, and the lifting roller platforms transport the kiln furniture between the return plate line and the material feeder inlet, and between the return plate line and the emergency section. The fixed roller platforms are spaced apart between the elevators. The guide rails are laid between the fixed roller platforms. The transfer roller platforms are installed on the guide rails and transport the kiln furniture between adjacent fixed roller platforms.
[0009] As a preferred embodiment of this utility model, the emergency section is an open roller conveyor line, with its inlet connected to the transfer machine of the transition section and its outlet connected to the elevator of the return plate line. Unlike the firing section, the first cooling section, and the second cooling section, which use enclosed boxes, the emergency section of this utility model has the following uses: 1. When the production cycle speeds up, it can be used as a production line for cooling products, cooling the products at room temperature or after modification. 2. It can be used for the temporary storage of kiln furniture and products or kiln furniture. When one or more of the second cooling sections malfunction and need repair, the kiln furniture and products or kiln furniture can be temporarily stored in the emergency section. 3. It can also be used for assembling, sorting, and repairing kiln furniture, as well as for emergency receiving or storing billets. 4. It can be used for replacing and repairing damaged kiln furniture, replenishing new kiln furniture, and for temporary storage of kiln furniture and emergency storage of billets during kiln shutdown for maintenance.
[0010] As a preferred embodiment of this utility model, the end of the forklift is provided with a movable lifting fork arm for forking up kiln furniture and products. The end of the clamping machine is provided with a clamping arm for clamping products.
[0011] As a preferred embodiment of this invention, sealing covers are provided at the inlets of both the firing section and the second cooling section. By installing sealing covers before the kiln furniture enters the kiln, and then passing through the front and rear gates, this invention prevents cold air from entering, thereby improving exhaust efficiency and kiln pressure stability.
[0012] In a preferred embodiment of this invention, a preheating section is provided before the firing section. The first cooling section is a rapid cooling section. The second cooling section includes a slow cooling section and a tail cooling section arranged sequentially.
[0013] Furthermore, the transfer machine mainly includes a translation mechanism, a lifting mechanism, and a transfer roller table. The translation mechanism is mounted on the frame and moves between the outlet of the first cooling section and the inlet of the emergency section, with its drive end connected to the lifting mechanism. The transfer roller table is mounted on the lifting mechanism and is used to receive kiln furniture and products or kiln furniture.
[0014] As a preferred embodiment of this utility model, an underground tunnel is provided below the kiln. The return plate line is laid in the underground tunnel.
[0015] Furthermore, the kiln also includes a first replenishing roller table and a second replenishing roller table for replenishing or replacing kiln furniture. The first replenishing roller table is located before the material feeding station and is connected to the material feeding station via a hoist. The second replenishing roller table is located at the end of the emergency section and is connected to the return plate line via a hoist.
[0016] Furthermore, the kiln also includes a transverse conveyor line. This transverse conveyor line is located at the outlet of the second cooling section and connects to all the second cooling sections, used for conveying products between adjacent second cooling sections.
[0017] The working process and principle of this utility model are as follows: During normal operation, the kiln furniture enters the kiln after the feeding process. After passing through the preheating section, firing section, and rapid cooling section, a forklift in the transition section forks the rapidly cooled kiln furniture and product together onto the demolding roller table. After demolding, the product is clamped by a clamping machine and sent to the slow cooling section and the tail cooling section, while the kiln furniture is sent to the return plate line below the transition section. It is then returned to the feeding process via a swing roller table, a fixed roller table, and a lift for feeding again. This design separates the product from the kiln furniture after rapid cooling, allowing the separated product to cool independently, ensuring uniform cooling of all parts, greatly improving cooling efficiency, and further reducing production line energy consumption. The separated kiln furniture, carrying a high residual temperature, returns to the kiln after the feeding process. This releases heat from the powder inside the kiln furniture, raising its base temperature, and reduces the temperature and energy consumption required for firing. In addition, when one or more of the second cooling sections malfunction and require maintenance, the forklift conveyor transports the stranded kiln furniture and products to the emergency section for temporary storage via a transfer machine. Once the malfunction is resolved, the kiln furniture and products in the emergency section are then returned to the second cooling section. When kiln furniture needs maintenance, assembly, or sorting, it is also transported to the emergency section via the transfer machine for operation. This invention also has the advantages of simple structure, convenient operation, and ease of implementation.
[0018] Compared with the prior art, the present invention also has the following advantages:
[0019] (1) The segmented cooling kiln provided by this utility model rapidly cools the kiln furniture and the product, allowing the product surface to cool and solidify, and then the product is demolded and cooled independently. Compared with the traditional kiln furniture cooling method, this cooling method not only significantly reduces the energy consumption required to cool the product, but also allows the various parts of the product to cool more evenly, resulting in better product quality and fewer deformations and cracks after cooling and solidification.
[0020] (2) The segmented cooling kiln provided by this utility model separates the kiln furniture and the product after the rapid cooling section. The kiln furniture still has a high residual temperature after rapid cooling. After such kiln furniture is recycled and re-filled, the kiln furniture and powder have a base temperature higher than room temperature. When such kiln furniture with powder enters the kiln, it can reduce the heat required for heating during firing, significantly reduce the energy consumption of the production line, reduce the firing time, improve the production efficiency of the production line, and reduce the production cost.
[0021] (3) The segmented cooling kiln provided by this utility model divides the slow cooling section and the tail cooling section (slow production cycle) into multiple parallel production lines. The kiln furniture and products from the firing section and the rapid cooling section (fast production cycle) are distributed by the forklift conveyor in the transition section, which can significantly speed up the production rhythm of the production line and improve production efficiency. An emergency section can be set up between adjacent second cooling sections to temporarily store kiln furniture and products or kiln furniture in case of emergency such as fault repair. At the same time, it can also be used for repairing, assembling, and refurbishing kiln furniture or replenishing kiln furniture, which is a multi-purpose solution.
[0022] (4) The segmented cooling kiln provided by this utility model separates the product from the kiln furniture after the rapid cooling section. The kiln furniture is then recycled through the return plate line and the material is re-poured into the kiln. Compared with the traditional kiln, this kiln furniture circulation method can save half of the working stroke, quantity and input cost of the kiln furniture, and greatly improve the production efficiency of the kiln.
[0023] (5) The segmented cooling kiln provided by this utility model can greatly shorten the length of the equipment (production line) and the firing cycle due to the segmented cooling structure design, and can also significantly improve the production capacity and output value.
[0024] (6) The segmented cooling kiln provided by this utility model adopts a segmented cooling structure design, so the overall length of the equipment (production line) can be greatly shortened. On the one hand, it is conducive to the adjustment of production cycle and production rhythm and fault handling. On the other hand, it can significantly reduce the risk of safe production and ensure that the production line can operate normally, stably and continuously. Attached Figure Description
[0025] Figure 1 This is a top view of the segmented cooling kiln provided by this utility model.
[0026] Figure 2 yes Figure 1 Enlarged view of a portion on the left.
[0027] Figure 3 yes Figure 1 Enlarged view of the central section.
[0028] Figure 4 yes Figure 1 Enlarged view of a portion on the right.
[0029] Figure 5 This is a side view of the segmented cooling kiln provided by this utility model along the central axis.
[0030] Figure 6 yes Figure 5 Enlarged view of a portion on the left.
[0031] Figure 7 yes Figure 5 Enlarged view of the central section.
[0032] Figure 8 yes Figure 5 Enlarged view of a portion on the right.
[0033] Figure 9 This is a side view of the segmented cooling kiln provided by this utility model in the transition section and the second cooling section.
[0034] Figure 10 yes Figure 9 Enlarged view of a portion on the left.
[0035] Explanation of the reference numerals in the above figures:
[0036] 1-Kiln furniture, 2-Firing section, 3-Quick cooling section, 4-Transition section, 5-Slow cooling section, 6-Tail cooling section, 7-Emergency section, 8-Return plate line, 9-Frame, 10-Forklift machine, 11-Demolding roller table, 12-Clamping machine, 13-Transfer machine, 14-Guide rail, 15-Elevator, 16-Lifting roller table, 17-Fixed roller table, 18-Transfer roller table, 19-Moving lifting fork arm, 20-Sealing cover, 21-Clamping arm, 22-Translation mechanism, 23-Lifting mechanism, 24-Transfer roller table, 25-First supplementary roller table, 26-Second supplementary roller table, 27-Transverse conveyor line. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of this utility model clearer and more explicit, the present utility model will be further described below with reference to the accompanying drawings and embodiments.
[0038] Example 1:
[0039] like Figures 1 to 10As shown, this embodiment discloses a segmented cooling kiln, mainly including a firing section 2, a first cooling section, a transition section 4, a second cooling section, an emergency section 7, and a return plate line 8. The firing section 2, the first cooling section, and the transition section 4 are arranged sequentially. The second cooling section is located after the transition section 4, and at least two sets are provided. The two sets of second cooling sections are located on both sides of the firing section 2. The emergency section 7 is located after the transition section 4, and at least one set is provided. The emergency section 7 is located between the two sets of second cooling sections and is arranged on the same axis as the firing section 2. The return plate line 8 is located below the firing section 2, the first cooling section, the transition section 4, and the emergency section 7, and is used to recover the kiln furniture 1 and send the kiln furniture 1 back to the feeding station. The transition section 4 separates the fired kiln furniture 1 and the product, and transports the kiln furniture 1 and the product to the emergency section 7, or transports the kiln furniture 1 to the return plate line 8 or the emergency section 7, and transports the product to the second cooling section.
[0040] Specifically, the transition section 4 mainly includes a frame 9, and a forklift machine 10, a demolding roller table 11, a clamping machine 12, and a transfer machine 13 mounted on the frame 9. The frame 9 is located between the outlet of the first cooling section and the inlet of the second cooling section and the inlet of the emergency section 7. The forklift machine 10 transports the kiln furniture 1 and the product from the outlet of the first cooling section to the demolding roller table 11 via translation and lifting. After demolding, the kiln furniture 1 is transported to the return plate line 8 below the outlet of the first cooling section, or to the transfer machine 13. The demolding roller table 11 lowers the side rails of the kiln furniture 1 to achieve demolding. The clamping machine 12 clamps the demolded product and transports it to the second cooling section via translation and lifting. The transfer machine 13 transports the kiln furniture 1 and the product, or the kiln furniture 1, to the emergency section 7 via translation and lifting.
[0041] Furthermore, the return plate line 8 is mainly used to recover the kiln furniture 1 and transport it to the inlet of the material feeder at the kiln head for re-feeding. The return plate line 8 mainly includes a guide rail 14, a lifting platform 15, a lifting roller platform 16, a fixed roller platform 17, and a transfer roller platform 18. The lifting roller platform 16 is installed on the lifting platform 15. The lifting platform 15 is located before the material feeding and at the emergency section 7, and the lifting roller platform 16 transports the kiln furniture 1 between the return plate line 8 and the material feeder inlet, and between the return plate line 8 and the emergency section 7. The fixed roller platforms 17 are spaced apart between the lifting platforms 15. The guide rail 14 is laid between the fixed roller platforms 17. The transfer roller platform 18 is installed on the guide rail 14 and transports the kiln furniture 1 between adjacent fixed roller platforms 17.
[0042] As a preferred embodiment of this utility model, the emergency section 7 is an open roller conveyor line, with its inlet connected to the transfer machine 13 of the transition section 4 and its outlet connected to the elevator 15 of the return plate line 8. Unlike the firing section 2, the first cooling section, and the second cooling section, which use enclosed boxes, the emergency section 7 of this utility model has the following uses: 1. When the production cycle speeds up, it can be used as a production line for cooling products, cooling the products at room temperature or after modification. 2. It can be used for the temporary storage of kiln furniture 1 and products or kiln furniture 1. When one or more of the second cooling sections malfunction and need repair, the kiln furniture 1 and products or kiln furniture 1 can be temporarily stored in the emergency section 7. 3. It can also be used for assembling, sorting, and repairing kiln furniture 1, as well as for emergency receiving or storing billets. 4. It can be used for replacing and repairing damaged kiln furniture 1, replenishing new kiln furniture 1, and for temporary storage of kiln furniture 1 and emergency storage of billets during kiln shutdown for maintenance.
[0043] As a preferred embodiment of this utility model, the forklift 10 is provided with a movable lifting fork arm 19 at its end for forking up the kiln furniture 1 and the product. The clamping machine 12 is provided with a clamping arm 21 at its end for clamping the product.
[0044] As a preferred embodiment of this invention, sealing covers 20 are provided at the inlets of both the firing section 2 and the second cooling section. By installing sealing covers 20 before the kiln enters, and allowing the kiln furniture 1 to enter the kiln through the front and rear gates, cold air can be prevented from entering, thus improving exhaust efficiency and kiln pressure stability.
[0045] In a preferred embodiment of this invention, a preheating section is provided before the firing section 2. The first cooling section is a rapid cooling section 3. The second cooling section includes a slow cooling section 5 and a tail cooling section 6 arranged sequentially.
[0046] Furthermore, the transfer machine 13 mainly includes a translation mechanism 22, a lifting mechanism 23, and a transfer roller table 24. The translation mechanism 22 is mounted on the frame 9 and moves between the outlet of the first cooling section and the inlet of the emergency section 7, with its drive end connected to the lifting mechanism 23. The transfer roller table 24 is mounted on the lifting mechanism 23 and is used to receive the kiln furniture 1 and the product or the kiln furniture 1.
[0047] As a preferred embodiment of this utility model, an underground tunnel is provided below the kiln. The return plate line 8 is laid in the underground tunnel.
[0048] Furthermore, the kiln also includes a first supplementary roller table 25 and a second supplementary roller table 26 for replenishing or replacing kiln furniture 1. The first supplementary roller table 25 is located before the material feeding station and is connected to the material feeding station via a lift 15. The second supplementary roller table 26 is located at the end of the emergency section 7 and is connected to the return plate line 8 via a lift 15.
[0049] Furthermore, the kiln also includes a transverse conveyor line 27. The transverse conveyor line 27 is located at the outlet of the second cooling section and connects to all the second cooling sections respectively, for conveying products between adjacent second cooling sections.
[0050] The working process and principle of this utility model are as follows: During normal operation, the kiln furniture 1 enters the kiln after the material feeding process. After passing through the preheating section, firing section 2, and rapid cooling section 3, the forklift 10 in the transition section 4 forks the rapidly cooled kiln furniture 1 and the product together onto the demolding roller table 11. After demolding, the product is clamped by the clamping machine 12 and sent into the slow cooling section 5 and the tail cooling section 6, while the kiln furniture 1 is sent to the return plate line 8 below the transition section 4. It is then sent back to the material feeding process via the swing roller table 18, the fixed roller table 17, and the elevator 15 for another material feeding. This design allows the product and kiln furniture 1 to separate after rapid cooling. The separated product cools independently, ensuring uniform cooling of all parts, greatly improving cooling efficiency, and further reducing production line energy consumption. The separated kiln furniture 1, carrying a relatively high residual temperature, returns to the kiln after the material feeding process. This releases heat from the powder inside the kiln furniture 1, increasing its base temperature, and reduces the temperature and energy consumption required for firing. In addition, when one or more of the second cooling sections malfunction and require maintenance, the forklift conveyor 10 transports the remaining kiln furniture 1 and products to the emergency section 7 for temporary storage via the transfer machine 13. Once the malfunction is resolved, the kiln furniture 1 and products in the emergency section 7 are then returned to the second cooling section. When kiln furniture 1 needs maintenance, assembly, or sorting, it is also transported to the emergency section 7 via the transfer machine 13 for operation. This utility model also has the advantages of simple structure, convenient operation, and ease of implementation.
[0051] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. A segmented cooling kiln characterized by, The kiln comprises a firing section, a first cooling section, a transition section, a second cooling section, an emergency section, and a return plate line; the firing section, the first cooling section, and the transition section are sequentially arranged; the second cooling section is arranged behind the transition section and is arranged in at least two groups; the emergency section is arranged behind the transition section and is arranged in at least one group; the return plate line is arranged below the firing section, the first cooling section, the transition section, and the emergency section, and is used for recycling the kiln furniture and sending the kiln furniture back to the material distribution station; the transition section separates the kiln furniture and the products after firing, and sends the kiln furniture and the products to the emergency section, or sends the kiln furniture to the return plate line or the emergency section, and sends the products to the second cooling section. The transition section comprises a rack and a fork plate machine, a demolding roller table, a clamping plate machine, and a switching machine arranged on the rack; the rack is arranged between the outlet of the first cooling section and the inlet of the second cooling section and the inlet of the emergency section; the fork plate machine sends the kiln furniture and the products from the outlet of the first cooling section to the demolding roller table through translation and lifting, and sends the kiln furniture to the return plate line below the outlet of the first cooling section after demolding, or sends the kiln furniture to the switching machine; the demolding roller table realizes demolding after lowering the kiln furniture flange; the clamping plate machine clamps the products after demolding and sends the products to the second cooling section through translation and lifting; the switching machine sends the kiln furniture and the products or the kiln furniture to the emergency section through translation and lifting.
2. The segmented cooling kiln of claim 1, wherein, The return plate line comprises guide rails, elevators, lifting roller tables, fixed roller tables, and transfer roller tables; the lifting roller tables are installed on the elevators; the elevators are arranged before the material distribution station and at the emergency section, and send the kiln furniture between the return plate line and the material distribution station, and between the return plate line and the emergency section through the lifting roller tables; the fixed roller tables are arranged at intervals between the elevators; the guide rails are arranged between the fixed roller tables; the transfer roller tables are installed on the guide rails and send the kiln furniture between adjacent fixed roller tables.
3. The segmented cooling furnace of claim 2, wherein, The emergency section is an open roller conveyor line, the inlet of which is connected with the switching machine of the transition section, and the outlet of which is connected with the elevator of the return plate line.
4. The zoned cooled kiln of claim 1, wherein, The end of the fork plate machine is provided with a movable lifting fork arm for forking the kiln furniture and the products; the end of the clamping plate machine is provided with a clamping arm for clamping the products.
5. The segmented cooling furnace of claim 1, wherein, Sealing covers are arranged at the inlets of the firing section and the second cooling section.
6. The segmented cooling furnace of claim 1, wherein, A preheating section is further arranged before the firing section; the first cooling section is a rapid cooling section; the second cooling section comprises a slow cooling section and a tail cooling section arranged in sequence.
7. The zoned cooled kiln of claim 1 wherein, The switching machine comprises a translation mechanism, a lifting mechanism, and a switching roller table; the translation mechanism is arranged on the rack and is translated between the outlet of the first cooling section and the inlet of the emergency section, and the driving end of the translation mechanism is connected with the lifting mechanism; the switching roller table is installed on the lifting mechanism and is used for receiving the kiln furniture and the products or the kiln furniture.
8. The zoned cooled kiln of claim 1 wherein, An underground tunnel is arranged below the kiln; the return plate line is arranged in the underground tunnel.
9. The zoned cooled kiln of claim 2, wherein, The kiln further comprises a first replenishment roller table and a second replenishment roller table for replenishing or replacing the kiln furniture; the first replenishment roller table is arranged before the material distribution station and is connected with the material distribution station through the elevator; the second replenishment roller table is arranged at the end of the emergency section and is connected with the return plate line through the elevator.
10. The zoned cooled furnace of claim 1 wherein, The kiln further comprises a transversal conveying line; the transversal conveying line is arranged at the outlet of the second cooling section, respectively connecting all the second cooling sections, for the conveying of the product between adjacent second cooling sections.