Energy-saving ceramic kiln

Abstract

The utility model discloses an energy -saving ceramic kiln, include: support track, the beneficial effect of the utility model is: set the limiting portion, utilize three air cylinders drive inside mobile board to drive the blocking piece and move, realize to the limit of no.

Description

Technical Field

[0001] This utility model relates to the field of kiln technology, specifically to an energy-saving ceramic kiln. Background Technology

[0002] In the ceramic manufacturing industry, the kiln is a crucial firing equipment. Its performance directly affects the quality of ceramic products, production efficiency, and energy consumption. In the loading and unloading process, the operation of traditional ceramic kilns is relatively cumbersome. Workers need to spend a lot of time and energy when putting the blanks into the kiln and taking the finished products out of the kiln for unloading. Moreover, collisions are prone to occur during the operation, which can damage the blanks. Especially in large-scale production, this inefficient loading and unloading method can seriously affect the production schedule and increase production costs. Utility Model Content

[0003] The purpose of this utility model is to provide an energy-saving ceramic kiln to solve the problem mentioned in the background art that the operation of traditional ceramic kilns is cumbersome. Workers need to spend a lot of time and energy when putting the blanks into the kiln and taking out the finished products from the kiln for unloading. Moreover, collisions are prone to occur during the operation, which can damage the blanks. Especially in large-scale production, this inefficient loading and unloading method will seriously affect the production progress and increase the production cost.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving ceramic kiln, comprising:

[0005] Support track;

[0006] A mobile frame is mounted above the support rails;

[0007] A top support box is installed on the top of the mobile frame, and a top sliding plate is slidably provided on the top of the top support box;

[0008] There are three No. 1 guide rails, and each No. 1 guide rail is fixed to the top of the top sliding plate.

[0009] A top placement frame is placed above the top sliding plate, and the bottom of the top placement frame is provided with three bottom fixed wheel frames that cooperate with the first guide rail.

[0010] Side support base, the side support base is placed on one side of the support rail, the top of the side support base is equipped with two top support frames, the top of the top support frame is rotatably equipped with a rotating support plate, and the top of the rotating support plate is equipped with three No. 2 guide rails that cooperate with the bottom fixed wheel frame.

[0011] A limiting part is provided at the bottom of the rotating support plate;

[0012] The kiln body is placed on one side of the supporting track, and a kiln door is provided on one side of the kiln body;

[0013] The hot air circulation section is located at the top of the kiln body.

[0014] As a preferred embodiment of this utility model: the limiting part includes a bottom fixed box, a No. 3 cylinder, an inner moving plate, a limiting rod, and a blocking block. The bottom fixed box is fixedly connected to the bottom of the rotating support plate, and the No. 3 cylinder is installed at the bottom of the rotating support plate. The inner moving plate is slidably arranged inside the bottom fixed box. The output end of the No. 3 cylinder is fixedly connected to the inner moving plate. Three blocking blocks that cooperate with the No. 2 guide rail are fixedly connected to the top of the inner moving plate. The blocking blocks are slidably connected to the rotating support plate and to the No. 2 guide rail. Limiting rods are symmetrically slidably arranged inside the inner moving plate, and the limiting rods are fixedly connected to the bottom fixed box.

[0015] As a preferred embodiment of this utility model: a side fixing frame is provided on one side of the support rail, a second cylinder is installed on one side of the side fixing frame by bolts, an adjusting slide is fixedly connected to the output end of the second cylinder, the adjusting slide is slidably connected to the side fixing frame, three wheel limiting blocks are fixedly connected to one side of the adjusting slide, four moving wheels are provided on the outer side of the moving frame, and the wheel limiting blocks cooperate with the moving wheels.

[0016] As a preferred embodiment of this utility model: the hot air circulation section includes a top ventilation box, a circulating high-temperature fan, and a ventilation assembly. Two sets of ventilation assemblies are provided inside the kiln body. Two top ventilation boxes are bolted to the top of the kiln body. The ventilation assembly is connected to the top ventilation box. A circulating high-temperature fan is installed on the top of the kiln body. The input end of the circulating high-temperature fan is connected to one of the top ventilation boxes through an insulated air duct, and the output end of the circulating high-temperature fan is connected to the other top ventilation box through an insulated air duct.

[0017] As a preferred embodiment of this utility model: an inner sliding seat is slidably provided inside the top support box, the top of the inner sliding seat is fixedly connected to the top sliding plate, a No. 1 cylinder is installed on one side of the top support box by bolts, the output end of the No. 1 cylinder is fixedly connected to the inner sliding seat, a limit slide rod is symmetrically slidably provided inside the inner sliding seat, the limit slide rod is fixedly connected to the top support box, and a No. 1 accordion cloth is provided between both sides of the inner sliding seat and the top support box.

[0018] As a preferred embodiment of this utility model: a servo motor is installed inside the top support by bolts, the output end of the servo motor is fixedly connected to the rotating support plate, a limit bolt is installed in the internal thread of the guide rail, multiple limit guide rails are installed inside the kiln body, and the limit guide rails are installed with the bottom fixed wheel frame by bolts.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting a limiting part, uses the No. 3 cylinder to drive the inner moving plate to move the blocking block, thereby limiting the bottom fixed wheel frame and the top placement frame on the No. 2 guide rail, preventing accidental slippage, and ensuring safe and stable operation. At the same time, the limiting rod guides and limits the sliding of the inner moving plate, making the movement of the blocking block more precise. The No. 1 servo motor in the top support drives the rotating support plate to rotate, which can flexibly adjust the angle of the No. 2 guide rail on the rotating support plate to meet different working requirements. The limiting bolt installed on the inner thread of the No. 1 guide rail can limit the bottom fixed wheel frame of the top placement frame on the No. 2 guide rail. The position of the top placement rack is defined by multiple limiting guide rails and bottom fixed wheel frames inside the kiln, which are bolted together to further ensure the stability of the top placement rack position inside the kiln. The blanks to be sintered are placed in advance on the rotating support plate, which facilitates the quick loading and unloading of the top placement rack and faster removal and placement from the kiln. In the hot air circulation section, two sets of ventilation components are connected to two top ventilation boxes. The circulating high-temperature fan draws air from one top ventilation box and sends it to the other top ventilation box through the heat-insulated air duct to form a hot air circulation, which makes the temperature inside the kiln more uniform, improves the ceramic firing quality, and reduces heat loss to achieve energy saving. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a right view of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the top support box of this utility model;

[0023] Figure 4 This is a top view of the present invention;

[0024] Figure 5 This is a schematic diagram of the internal structure of the bottom fixing box of this utility model;

[0025] Figure 6 This is a schematic diagram of the internal structure of the kiln body of this utility model.

[0026] In the diagram: 1. Support rail; 2. Moving frame; 3. Moving wheels; 4. Kiln body; 5. Kiln door; 6. Top ventilation box; 7. Circulating high-temperature fan; 8. Ventilation assembly; 9. Limiting guide rail; 10. Top support box; 11. Top sliding plate; 12. Inner sliding seat; 13. Limiting slide rod; 14. No. 1 bellows cloth; 15. No. 1 cylinder; 16. Bottom fixed wheel frame; 17. Top placement frame; 18. Limiting bolt; 19. No. 1 guide rail; 20. Side fixed frame; 21. No. 2 cylinder; 22. Adjustable sliding plate; 23. Wheel limit block; 24. Side support seat; 25. Top support frame; 26. Top support; 27. Rotating support plate; 28. No. 1 servo motor; 29. ​​Bottom fixed box; 30. No. 3 cylinder; 31. Inner moving plate; 32. Limiting rod; 33. Blocking block; 34. No. 2 guide rail. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1 to 6 This utility model provides a technical solution: an energy-saving ceramic kiln, comprising: a supporting rail 1; a movable frame 2 disposed above the supporting rail 1; a top support box 10 bolted to the top of the movable frame 2, with a top sliding plate 11 slidably disposed on the top of the top support box 10; three first guide rails 19 fixedly connected to the top of the top sliding plate 11; and a top placement frame 17 disposed above the top sliding plate 11, with three mounting brackets at the bottom of the top placement frame 17 that mate with the first guide rails 19. The bottom fixed wheel frame 16 is combined; the side support seat 24 is placed on one side of the support rail 1, and two top support frames 25 are bolted to the top of the side support seat 24. The top of the top support frame 25 is rotatably provided with a rotating support plate 27, and the top of the rotating support plate 27 is provided with three second guide rails 34 that cooperate with the bottom fixed wheel frame 16; the limiting part is set at the bottom of the rotating support plate 27; the kiln body 4 is placed on one side of the support rail 1, and a furnace door 5 is provided on one side of the kiln body 4; the hot air circulation part is placed on the top of the kiln body 4.

[0029] It should be noted that, in this embodiment, inside the top support box 10, the output end of the first cylinder 15 is fixedly connected to the inner sliding seat 12, the top of the inner sliding seat 12 is connected to the top sliding plate 11, the top of the top sliding plate 11 is provided with a first guide rail 19, and the bottom of the top placement frame 17 is provided with a bottom fixed wheel frame 16 that cooperates with the first guide rail 19. When the first cylinder 15 is started, its output end pushes the inner sliding seat 12, and the inner sliding seat 12 slides along the limiting slide rod 13 inside the top support box 10, driving the top sliding plate 11 to move, thereby causing the top placement frame 17 to move on the first guide rail 19 through the bottom fixed wheel frame 16, realizing position adjustment. The first accordion cloth 14 provided between the two sides of the inner sliding seat 12 and the top support box 10 can prevent debris from entering the interior of the top support box 10 and ensure the sliding part When the components are operating normally, the internal thread of the first guide rail 19 is fitted with a limit bolt 18, which limits the movement of the bottom fixed wheel frame 16 of the top placement frame 17 on the first guide rail 19 to prevent it from exceeding the specified range. Multiple limit guide rails 9 are installed inside the kiln body 4. The limit guide rails 9 are bolted to the bottom fixed wheel frame 16 to further ensure the stability of the position of the top placement frame 17 inside the kiln body 4. The bottom of the rotating support plate 27 is provided with a limiting part, including a bottom fixed box 29, a third cylinder 30, an inner moving plate 31, a limit rod 32, and a blocking block 33. The third cylinder 30 is installed at the bottom of the rotating support plate 27, and its output end is fixedly connected to the inner moving plate 31. The inner moving plate 31 slides inside the bottom fixed box 29, and the limit rods 32 are symmetrically slidably arranged inside. 32 is fixedly connected to the bottom fixed box 29. When the third cylinder 30 is started, it drives the inner moving plate 31 to move the blocking block 33. The blocking block 33 is slidably connected to the second guide rail 34, which can limit the bottom fixed wheel frame 16 and the top placement frame 17 on the second guide rail 34 to prevent them from sliding accidentally. At the same time, the limiting rod 32 guides and limits the sliding of the inner moving plate 31, making the movement of the blocking block 33 more precise. The first servo motor 28 is installed in the top support 26 by bolts. The output end of the first servo motor 28 is fixedly connected to the rotating support plate 27. When the first servo motor 28 is started, its output end drives the rotating support plate 27 to rotate, thereby flexibly adjusting the angle of the second guide rail 34 on the rotating support plate 27. The angle is 180 degrees reciprocating rotation adjustment to meet the needs of the top placement frame 17. For loading and unloading, the blanks to be sintered can be pre-placed on the rotating support plate 27, facilitating rapid loading and unloading of the top placement frame 17 and faster removal and placement from the kiln body 4. A side fixing frame 20 is provided on one side of the support rail 1, and a second cylinder 21 is bolted to one side of the side fixing frame 20. An adjusting slide plate 22 is fixedly connected to the output end of the second cylinder 21, and the adjusting slide plate 22 is slidably connected to the side fixing frame 20. Three wheel limit blocks 23 are fixedly connected to one side of the adjusting slide plate 22. Four moving wheels 3 are provided on the outer side of the moving frame 2, and the wheel limit blocks 23 cooperate with the moving wheels 3. When the second cylinder 21 is activated, its output end pushes the adjusting slide plate 22 to slide on the side fixing frame 20, causing the wheel limit blocks 23 to move and cooperate with the moving wheels 3 on the outer side of the moving frame 2.To limit the movement of the mobile frame 2 and prevent it from moving arbitrarily, ensuring the stability of the equipment in a specific position, the hot air circulation section includes a top ventilation box 6, a circulating high-temperature fan 7, and ventilation components 8. Two sets of ventilation components 8 are installed inside the kiln body 4. Two top ventilation boxes 6 are bolted to the top, and the ventilation components 8 are connected to the top ventilation boxes 6. The circulating high-temperature fan 7 is installed on the top of the kiln body 4. Its input end is connected to one of the top ventilation boxes 6 through an insulated air duct, and its output end is connected to the other top ventilation box 6 through an insulated air duct. When the circulating high-temperature fan 7 starts, it draws air from one of the top ventilation boxes 6 through the insulated air duct and sends it to the other top ventilation box 6, forming a hot air circulation. This makes the temperature inside the kiln body 4 more uniform, improves the ceramic firing quality, and reduces heat loss, achieving energy saving.

[0030] The specific architecture and operating logic of the circulating high-temperature fan 7, cylinder, and servo motor in this application, which are coordinated and controlled by an external controller, are consistent with the existing technology in this field. The servo motors used are all equipped with encoders, which can provide real-time feedback on the speed, position, and other information of the servo motors. This control method has been maturely applied in many similar industrial scenarios, so it will not be discussed in detail here.

[0031] In one embodiment, such as Figures 1 to 6 As shown, the limiting part includes a bottom fixed box 29, a third cylinder 30, an inner moving plate 31, a limiting rod 32, and a blocking block 33. The bottom fixed box 29 is fixedly connected to the bottom of the rotating support plate 27. The third cylinder 30 is installed at the bottom of the rotating support plate 27 by bolts. The inner moving plate 31 is slidably arranged inside the bottom fixed box 29. The output end of the third cylinder 30 is fixedly connected to the inner moving plate 31. Three blocking blocks 33 that cooperate with the second guide rail 34 are fixedly connected to the top of the inner moving plate 31. The blocking blocks 33 are slidably connected to the rotating support plate 27 and the second guide rail 34. The limiting rod 32 is symmetrically slidably arranged inside the inner moving plate 31 and is fixedly connected to the bottom fixed box 29.

[0032] It should be noted that in this embodiment, by setting a limiting part, the inner moving plate 31 is driven by the No. 3 cylinder 30 to move the blocking block 33, thereby limiting the bottom fixed wheel frame 16 and the top placement frame 17 on the No. 2 guide rail 34, preventing them from sliding accidentally and ensuring safe and stable operation. At the same time, the limiting rod 32 plays a guiding and limiting role on the sliding of the inner moving plate 31, making the movement of the blocking block 33 more precise.

[0033] In one embodiment, such as Figures 1 to 6As shown, a side fixing frame 20 is provided on one side of the support rail 1. A second cylinder 21 is installed on one side of the side fixing frame 20 by bolts. An adjusting slide plate 22 is fixedly connected to the output end of the second cylinder 21. The adjusting slide plate 22 is slidably connected to the side fixing frame 20. Three wheel limit blocks 23 are fixedly connected to one side of the adjusting slide plate 22. Four moving wheels 3 are provided on the outer side of the moving frame 2. The wheel limit blocks 23 cooperate with the moving wheels 3.

[0034] It should be noted that in this embodiment, a side fixing frame 20, a second cylinder 21, an adjusting slide plate 22, and a wheel limiting block 23 are provided. The second cylinder 21 can drive the adjusting slide plate 22 to move the wheel limiting block 23, which cooperates with the moving wheel 3 on the outside of the moving frame 2 to limit the moving frame 2, prevent it from moving randomly, and ensure the stability of the equipment in a specific position.

[0035] In one embodiment, such as Figures 1 to 6 As shown, the hot air circulation section includes a top ventilation box 6, a circulating high-temperature fan 7, and a ventilation assembly 8. Two sets of ventilation assemblies 8 are installed inside the kiln body 4. Two top ventilation boxes 6 are bolted to the top of the kiln body 4. The ventilation assembly 8 is connected to the top ventilation box 6. A circulating high-temperature fan 7 is bolted to the top of the kiln body 4. The input end of the circulating high-temperature fan 7 is connected to one of the top ventilation boxes 6 through an insulated air duct, and the output end of the circulating high-temperature fan 7 is connected to the other top ventilation box 6 through an insulated air duct.

[0036] It should be noted that in this embodiment, in the hot air circulation section, the two sets of ventilation components 8 are connected to the two top ventilation boxes 6. The circulating high-temperature fan 7 draws out the air from one of the top ventilation boxes 6 and sends it into the other top ventilation box 6 through the heat-insulated air duct to form a hot air circulation, which makes the temperature inside the kiln body 4 more uniform, improves the ceramic firing quality, and reduces heat loss to achieve the purpose of energy saving.

[0037] In one embodiment, such as Figures 1 to 6 As shown, an inner sliding seat 12 is slidably arranged inside the top support box 10. The top of the inner sliding seat 12 is fixedly connected to the top sliding plate 11. A cylinder 15 is bolted to one side of the top support box 10. The output end of the cylinder 15 is fixedly connected to the inner sliding seat 12. A limiting slide rod 13 is symmetrically slidably arranged inside the inner sliding seat 12. The limiting slide rod 13 is fixedly connected to the top support box 10. A accordion cloth 14 is arranged between both sides of the inner sliding seat 12 and the top support box 10.

[0038] It should be noted that in this embodiment, the first cylinder 15 drives the inner sliding seat 12 to slide the top sliding plate 11, thereby adjusting the position of the top placement frame 17. The limiting slide rod 13 guides the sliding of the inner sliding seat 12 to ensure smooth sliding.

[0039] In one embodiment, such as Figures 1 to 6 As shown, a servo motor 28 is installed inside the top support 26 by bolts. The output end of the servo motor 28 is fixedly connected to the rotating support plate 27. A limit bolt 18 is installed inside the guide rail 19. Multiple limit guide rails 9 are installed inside the kiln body 4. The limit guide rails 9 are installed with the bottom fixed wheel frame 16 by bolts.

[0040] It should be noted that in this embodiment, the No. 1 servo motor 28 in the top support 26 drives the rotating support plate 27 to rotate, and the angle of the No. 2 guide rail 34 on the rotating support plate 27 can be flexibly adjusted to meet different working requirements. The limiting bolt 18 installed in the thread of the No. 1 guide rail 19 can limit the position of the bottom fixed wheel frame 16 on the No. 1 guide rail 19. Multiple limiting guide rails 9 in the kiln body 4 are installed with the bottom fixed wheel frame 16 by bolts, which further ensures the stability of the position of the top support 17 in the kiln body 4.

[0041] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy saving ceramic kiln, characterized by, include: Support rail (1); The mobile frame (2) is positioned above the support rail (1); Top support box (10) is installed on the top of the mobile frame (2), and a top sliding plate (11) is slidably provided on the top of the top support box (10). There are three No. 1 guide rails (19), and the No. 1 guide rails (19) are fixed to the top of the top sliding plate (11); The top placement frame (17) is placed above the top sliding plate (11), and the bottom of the top placement frame (17) is provided with three bottom fixed wheel frames (16) that cooperate with the first guide rail (19). Side support seat (24), the side support seat (24) is placed on one side of the support rail (1), the top of the side support seat (24) is equipped with two top support frames (25), the top of the top support frame (25) is rotatably provided with a rotating support plate (27), the top of the rotating support plate (27) is provided with three second guide rails (34) that cooperate with the bottom fixed wheel frame (16). A limiting part is provided at the bottom of the rotating support plate (27); Kiln body (4), the kiln body (4) is placed on one side of the support rail (1), and a kiln door (5) is provided on one side of the kiln body (4). Hot air circulation section, which is located at the top of the kiln body (4).

2. The energy saving ceramic kiln as claimed in claim 1, wherein: The limiting part includes a bottom fixed box (29), a third cylinder (30), an inner moving plate (31), a limiting rod (32), and a blocking block (33). The bottom fixed box (29) is fixedly connected to the bottom of the rotating support plate (27). The third cylinder (30) is installed at the bottom of the rotating support plate (27). The inner moving plate (31) is slidably arranged inside the bottom fixed box (29). The output end of the third cylinder (30) is fixedly connected to the inner moving plate (31). Three blocking blocks (33) that cooperate with the second guide rail (34) are fixedly connected to the top of the inner moving plate (31). The blocking blocks (33) are slidably connected to the rotating support plate (27) and to the second guide rail (34). The limiting rod (32) is symmetrically slidably arranged inside the inner moving plate (31). The limiting rod (32) is fixedly connected to the bottom fixed box (29).

3. The energy saving ceramic kiln as claimed in claim 1, wherein: A side fixing frame (20) is provided on one side of the support rail (1). A second cylinder (21) is installed on one side of the side fixing frame (20) by bolts. An adjusting slide plate (22) is fixed to the output end of the second cylinder (21). The adjusting slide plate (22) is slidably connected to the side fixing frame (20). Three wheel limiting blocks (23) are fixed to one side of the adjusting slide plate (22). Four moving wheels (3) are provided on the outside of the moving frame (2). The wheel limiting blocks (23) cooperate with the moving wheels (3).

4. The energy-saving ceramic kiln according to claim 1, characterized in that: The hot air circulation section includes a top ventilation box (6), a circulating high-temperature fan (7), and a ventilation assembly (8). Two sets of ventilation assemblies (8) are provided inside the kiln body (4). Two top ventilation boxes (6) are installed on the top of the kiln body (4) by bolts. The ventilation assembly (8) is connected to the top ventilation box (6). A circulating high-temperature fan (7) is installed on the top of the kiln body (4). The input end of the circulating high-temperature fan (7) is connected to one of the top ventilation boxes (6) through an insulated air duct. The output end of the circulating high-temperature fan (7) is connected to the other top ventilation box (6) through an insulated air duct.

5. The energy efficient ceramic kiln as claimed in claim 1, wherein: The top support box (10) is slidably provided with an inner sliding seat (12). The top of the inner sliding seat (12) is fixedly connected to the top sliding plate (11). A cylinder (15) is installed on one side of the top support box (10) by bolts. The output end of the cylinder (15) is fixedly connected to the inner sliding seat (12). A limit slide rod (13) is symmetrically slidably provided inside the inner sliding seat (12). The limit slide rod (13) is fixedly connected to the top support box (10). A gusset cloth (14) is provided between both sides of the inner sliding seat (12) and the top support box (10).

6. The energy efficient ceramic kiln as claimed in claim 1, wherein: A servo motor (28) is installed inside the top support (26) by bolts. The output end of the servo motor (28) is fixedly connected to the rotating support plate (27). A limit bolt (18) is installed inside the thread of the guide rail (19). Multiple limit guide rails (9) are installed inside the kiln body (4). The limit guide rails (9) are installed with the bottom fixed wheel frame (16) by bolts.

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