A mobile tunnel kiln drying system

Abstract

The application is suitable for the field of tunnel kiln drying technology, and particularly relates to a movable tunnel kiln drying system, which comprises a drying chamber base layer, the side of the drying chamber base layer is connected with a supporting side wall, and the inside of the supporting side wall is provided with a supporting top seat. The supporting top seat, the rolling bearing, the driving blade, the rotating rod, the spiral blade, the air outlet hole, the second air baffle, the first air baffle, the electromagnetic adsorption iron block, the rotating shaft and the third air baffle are arranged, when hot air is used to dry the brick body blank, the spiral blade arranged in the drying blowing cylinder can be continuously rotated by using hot air as power input, so that the hot air blown out of the drying blowing cylinder can flow in a spiral state on the surface of the brick body blank, the hot air can be blown on the surface of the brick body blank more gently and stably, and the phenomenon that cracks or deformation is caused by stress generated on the surface or inside of the brick body blank when the brick body blank is directly blown by the hot air can be avoided.

Description

Technical Field

[0001] This invention relates to the field of tunnel kiln drying technology, specifically a mobile tunnel kiln drying system. Background Technology

[0002] In the production technology of sintered brick products such as sintered wall materials and refractory bricks, after the brick blanks are extruded, die-cut, and shaped into strips, they become wet blocks containing a certain amount of moisture. They must be dried before being pushed into the kiln for firing; otherwise, the products will have many quality defects. Tunnel kilns, as modern continuous firing thermal equipment, are widely used in the drying and firing production of sintered bricks and other products.

[0003] Current mobile tunnel kiln drying systems typically dry brick blanks by directly blowing hot air onto their surface. However, this method often results in uneven heating of the brick blank surface when exposed to direct hot air, leading to stress on the surface or inside the brick blank and causing cracks or deformation. This results in a high rate of brick blank damage. To address this issue, the present invention provides a mobile tunnel kiln drying system to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide a mobile tunnel kiln drying system, which aims to solve the technical problems mentioned in the background art.

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

[0006] A mobile tunnel kiln drying system includes a drying chamber base, a supporting sidewall connected to the side of the drying chamber base, a supporting top seat provided inside the supporting sidewall, a second hot air circulation chamber provided inside the supporting top seat, a hot air inlet pipe connected to the side of the supporting top seat, and several drying blowers provided on the side of the supporting top seat near the drying chamber base, a connecting top cover connected to the outer side of the supporting top seat, and a first hot air circulation chamber formed between the connecting top cover and the supporting top seat, and several rolling bearings installed inside the supporting top seat, with rotating rods rotatably connected inside the rolling bearings, and drive blades and helical blades respectively sleeved on both sides of the surface of the rotating rod;

[0007] The support top seat is provided with several sets of air guide components. The air guide components are used to introduce the hot air inside the second hot air circulation chamber into the first hot air circulation chamber, and make the hot air drive the drive blades and rotating rod to rotate through the rolling bearing.

[0008] The air guiding assembly includes a second air guiding plate and a first air guiding plate, both of which are inclinedly arranged on the surface of the support top seat. The second and first air guiding plates of the same air guiding assembly are symmetrically arranged with the rotating rod as the central reference. Air outlets are opened on the surface of the support top seat near the second and first air guiding plates, and an electromagnetic adsorption iron block is installed on one side inside the air outlet. Rotating shafts are installed inside the support top seat near the second and first air guiding plates, and a third air guiding plate is rotatably connected to the outside of the rotating shaft. The third air guiding plate is made of iron.

[0009] Furthermore, the spiral blades are disposed inside the drying blower, and the drying blower, the rotating rod, and the spiral blades are all on the same axis.

[0010] Furthermore, the inclination direction of all the third air guide plates disposed inside the support top seat is towards the hot air inlet pipe, and the inclination direction of the first air guide plate and the second air guide plate in the same group of air guide assemblies is towards the drive blade.

[0011] Furthermore, the air guide assembly also includes two limiting blocks, which are fixedly connected inside the support top seat near the rotating shaft, and the limiting blocks are used to limit the rotation angle of the third air guide plate.

[0012] Furthermore, the number of driving blades is set to three, and the three driving blades are arranged at equal angles to the outside of the rotating rod with the rotating rod as the axis. The driving blades and the rotating rod are inclined at an angle between 15 and 30 degrees.

[0013] Furthermore, the surface of the drying chamber base layer is provided with an installation groove, and a fan cover is provided inside the installation groove. A fan is installed inside the fan cover. The two sides of the connecting top cover are respectively connected to a first connecting air pipe and a second connecting air pipe, and an electric air valve is installed on the outside of both the first connecting air pipe and the second connecting air pipe. A pre-embedded main air pipe is provided inside the drying chamber base layer, and several pre-embedded auxiliary air pipes are provided on the outside of the pre-embedded main air pipe.

[0014] Furthermore, the ends of the first and second connecting air pipes away from the connecting top cover are both located inside the fan housing, and one end of the pre-embedded main air pipe is connected to the inside of the fan housing.

[0015] This invention provides a mobile tunnel kiln drying system. By incorporating a supporting top, rolling bearings, drive blades, rotating rods, spiral blades, air outlets, a second guide plate, a first guide plate, an electromagnetically attracted iron block, a rotating shaft, and a third guide plate, the system utilizes hot air as a power input to continuously rotate the spiral blades inside the drying blower. This ensures the hot air blown out of the blower flows in a spiral pattern onto the surface of the brick blank, resulting in a smoother and more stable surface application. This prevents surface or internal stress from direct hot air exposure, which could cause cracks or deformation. Furthermore, the guiding design of the first, second, and third guide plates automatically changes the rotation direction of the drive blades, rotating rods, and spiral blades, allowing hot airflows with different flow directions to intermittently hit the surface of the brick blank. This results in more uniform heating of the brick blank surface, thereby improving the drying stability and efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a mobile tunnel kiln drying system.

[0017] Figure 2 A mobile tunnel kiln drying system Figure 1 Enlarged view of point A.

[0018] In the diagram: 1. Drying chamber base layer; 2. Electric air valve; 3. Supporting side panel; 4. First connecting air pipe; 5. Connecting top cover; 6. Supporting top seat; 7. First hot air circulation chamber; 8. Spiral blade; 9. Drying blower; 10. Mounting groove; 11. Second hot air circulation chamber; 12. Hot air inlet pipe; 13. Embedded main air pipe; 14. Embedded auxiliary air pipe; 15. Second connecting air pipe; 16. Fan; 17. Fan housing; 18. Rotating rod; 19. Drive blade; 20. First air guide plate; 21. Electromagnetic adsorption iron block; 22. Rolling bearing; 23. Second air guide plate; 24. Air outlet; 25. Rotating shaft; 26. Limiting block; 27. Third air guide plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0021] like Figures 1-2As shown, the mobile tunnel kiln drying system provided in this embodiment of the invention includes a drying chamber base 1, a supporting side wall 3 connected to the side of the drying chamber base 1, a supporting top seat 6 provided inside the supporting side wall 3, a second hot air circulation cavity 11 provided inside the supporting top seat 6, a hot air inlet pipe 12 connected to the side of the supporting top seat 6, and a plurality of drying blowers 9 provided on the side of the supporting top seat 6 near the drying chamber base 1. The external hot air delivery system injects hot air into the second hot air circulation cavity 11 through the hot air inlet pipe 12, and the hot air is blown into the interior of the supporting side wall 3 through the plurality of drying blowers 9 to dry the brick blanks placed on the drying chamber base 1. The above technical features are all mature existing technologies, which are technical solutions that are easy for those skilled in the art to obtain or think of. Those skilled in the art can make corresponding adjustments and selections based on the above technical solutions.

[0022] A connecting top cover 5 is connected to the outer side of the supporting top seat 6, and a first hot air circulation cavity 7 is formed between the connecting top cover 5 and the supporting top seat 6. Several rolling bearings 22 are installed inside the supporting top seat 6, and a rotating rod 18 is rotatably connected inside the rolling bearings 22. A drive blade 19 and a spiral blade 8 are respectively sleeved on both sides of the surface of the rotating rod 18. The spiral blade 8 is arranged inside the drying blower 9, and the drying blower 9, the rotating rod 18 and the spiral blade 8 are all on the same axis. Preferably, the spiral blade 8 can be a spiral torsion blade, and the entire spiral blade 8 is placed inside the drying blower 9.

[0023] The support top seat 6 is provided with several sets of air guide components. The air guide components are used to introduce the hot air inside the second hot air circulation chamber 11 into the first hot air circulation chamber 7, and make the hot air drive the drive blade 19 and the rotating rod 18 to rotate through the rolling bearing 22.

[0024] The air guiding assembly includes a second air guiding plate 23 and a first air guiding plate 20, both of which are inclinedly arranged on the surface of the support top seat 6. The second air guiding plate 23 and the first air guiding plate 20 of the same air guiding assembly are symmetrically arranged with the rotating rod 18 as the central reference. Air outlets 24 are provided on the surface of the support top seat 6 near the second air guiding plate 23 and the first air guiding plate 20, and an electromagnetic adsorption iron block 21 is installed on one side inside the air outlet 24. The support top seat 6 has an air outlet 24 located near the second air guiding plate 23. A rotating shaft 25 is installed at the position of the first air guide plate 20, and a third air guide plate 27 is rotatably connected to the outside of the rotating shaft 25. The third air guide plate 27 is made of iron. Preferably, the electromagnetic adsorption iron block 21 is also inclined, and the inclined direction of the electromagnetic adsorption iron block 21 is towards the third air guide plate 27. The air guide assembly also includes two limiting blocks 26. The limiting blocks 26 are fixedly connected inside the support top seat 6 near the rotating shaft 25, and the limiting blocks 26 are used to limit the rotation angle of the third air guide plate 27.

[0025] All the third air guide plates 27 installed inside the support top seat 6 are inclined towards the hot air inlet pipe 12, and the first air guide plate 20 and the second air guide plate 23 in the same group of air guide components are inclined towards the drive blade 19.

[0026] The number of drive blades 19 is set to three, and the three drive blades 19 are arranged at equal angles to the outside of the rotating rod 18 with the rotating rod 18 as the axis. The drive blades 19 and the rotating rod 18 are inclined at an angle between 15 and 30 degrees.

[0027] In one embodiment of the present invention, after hot air is injected into the second hot air circulation cavity 11 through the hot air inlet pipe 12, most of the hot air will be evenly distributed into several drying blowers 9 and blown onto the brick blanks placed on the base layer 1 of the drying chamber under the guidance of the drying blowers 9, thereby achieving the purpose of drying the brick blanks.

[0028] It is understandable that the direction of the third air guide plate 27 opened in the guide assembly corresponding to each rotating rod 18 is the same, that is, either the third air guide plate 27 on the left side of all guide assemblies is in the open state and the third air guide plate 27 on the right side is in the closed state, or the third air guide plate 27 on the left side of all guide assemblies is in the closed state and the third air guide plate 27 on the right side is in the open state. Then, the hot air entering the second hot air circulation cavity 11 will be blown into the air outlet 24 in the open state under the guidance of the third air guide plate 27 opened on the left or right side of the rotating rod 18, and blown onto the surface of the drive blade 19 under the guidance of the first air guide plate 20 or the second air guide plate 23 above the air outlet 24. Since there is a certain tilt angle between the drive blade 19 and the rotating rod 18, the drive blade 19 will be rotated by force, and the drive blade 19 will drive the rotating rod 18 and the spiral blade 8 to rotate through the rolling bearing 22.

[0029] It is understandable that when hot air is blown out through the air outlet 24 on the left side of the rotating rod 18, the drive blade 19 will rotate clockwise due to the thrust from the left side of the hot air, while when hot air is blown out through the air outlet 24 on the right side of the rotating rod 18, the drive blade 19 will rotate clockwise due to the thrust from the right side of the hot air (the specific clockwise and counterclockwise rotation method is set according to the specific tilt direction between the drive blade 19 and the rotating rod 18).

[0030] By setting the electromagnetic adsorption block 21 and the rotating shaft 25, the position of the two third air guide plates 27 can be easily controlled, so that the air outlet 24 on the left or right side of the rotating rod 18 can be automatically opened or closed. For example, when it is necessary to block the air outlet 24 on the left side of the rotating rod 18, the electromagnetic adsorption block 21 inside the air outlet 24 on the left side of the rotating rod 18 can be opened, so that the electromagnetic adsorption block 21 is energized and generates a strong electromagnetic adsorption force, thereby causing the electromagnetic adsorption block 21 to adsorb the third air guide plate 27 and rotate it through the rotating shaft 25 until the upper surface of the third air guide plate 27 is in contact with the lower surface of the support top seat 6, that is, the third air guide plate 27 blocks the air outlet 24 on the left side of the rotating rod 18.

[0031] As described above, when hot air is blown into the second hot air circulation chamber 11, some of the hot air can enter the first hot air circulation chamber 7 under the guidance of the third guide plate 27. Furthermore, the hot air will be blown onto the surface of the drive blade 19 under the guidance of the first guide plate 20 or the second guide plate 23, causing the drive blade 19 to rotate clockwise or counterclockwise. Simultaneously, the drive blade 19 will also cause the rotating rod 18 and the spiral blade 8 to rotate. Under the rotation of the spiral blade 8, the hot air enters... The hot air inside the drying blower 9 will form a rotating or spiral flow under the action of the rotating spiral blades 8, so that the hot air blown out from the drying blower 9 can be more evenly distributed and blown onto the brick blank. It is worth mentioning that after the hot air enters the drying blower 9, it can help smooth the airflow and reduce the turbulence and resistance in the hot air flow, so that the hot air can be blown onto the surface of the brick blank more gently and stably, avoiding the phenomenon of surface or internal stress in the brick blank when it is directly blown by hot air, which can cause cracks or deformation.

[0032] It is understandable that the guiding settings of the first air guide plate 20, the second air guide plate 23 and the third air guide plate 27 can automatically change the rotation direction of the drive blade 19, the rotating rod 18 and the spiral blade 8, thereby allowing the hot air to change its flow direction inside the drying blower 9. Furthermore, the hot air flow with different flow directions is intermittently blown onto the surface of the brick blank, which can make the surface of the brick blank more evenly heated, thereby improving the drying stability and efficiency of the brick blank.

[0033] Through the above technical solution, when using hot airflow to dry brick blanks, hot air can be used as a power input to keep the spiral blades 8 inside the drying blower 9 in a continuous state of rotation. This allows the hot air blown out of the drying blower 9 to flow in a spiral shape onto the surface of the brick blanks, making the hot air blown onto the surface of the brick blanks more gently and stably. This avoids the occurrence of surface or internal stress in the brick blanks when they are directly blown by hot air, which could cause cracks or deformation. Furthermore, through the guiding arrangement of the first guide plate 20, the second guide plate 23, and the third guide plate 27, the rotation direction of the drive blades 19, the rotating rod 18, and the spiral blades 8 can be automatically changed, so that hot airflows with different flow directions are intermittently blown onto the surface of the brick blanks. This makes the surface of the brick blanks more evenly heated, thereby improving the drying stability and efficiency of the brick blanks.

[0034] like Figure 1 As shown, in one embodiment of the present invention, an installation groove 10 is provided on the surface of the drying chamber base layer 1, and a fan cover 17 is provided inside the installation groove 10. A fan 16 is installed inside the fan cover 17. A first connecting air pipe 4 and a second connecting air pipe 15 are respectively connected to the two sides of the top cover 5. An electric air valve 2 is installed on the outer side of both the first connecting air pipe 4 and the second connecting air pipe 15. A pre-embedded main air pipe 13 is provided inside the drying chamber base layer 1, and a plurality of pre-embedded auxiliary air pipes 14 are provided on the outer side of the pre-embedded main air pipe 13.

[0035] The ends of the first connecting air pipe 4 and the second connecting air pipe 15 away from the connecting top cover 5 are both located inside the fan housing 17, and one end of the pre-embedded main air pipe 13 is connected to the inside of the fan housing 17.

[0036] In this embodiment, the hot air entering the first hot air circulation chamber 7 can be guided by the fan 16 and the first connecting air pipe 4 or the second connecting air pipe 15 to enter the interior of the pre-embedded main air pipe 13 and the pre-embedded auxiliary air pipe 14, so that this part of the hot air can be blown on the bottom or side of the brick blank, thereby avoiding the waste of hot air resources.

[0037] Understandably, when the air outlet 24 on the right side of the rotating rod 18 is open, the electric air valve 2 on the first connecting air pipe 4 should be energized and opened, and the electric air valve 2 on the second connecting air pipe 15 should be de-energized and closed, so that the fan 16 can guide the hot air blown into the second hot air circulation chamber 11 through the air outlet 24 on the right side of the rotating rod 18 into the interior of the first connecting air pipe 4, thereby making the hot air circulation inside the first hot air circulation chamber 7 smooth, and this hot air guiding method can also make the rotation of the drive blade 19 smoother and more effective.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mobile tunnel kiln drying system, comprising a drying chamber base layer (1), wherein a supporting side wall (3) is connected to the side of the drying chamber base layer (1), and a supporting top seat (6) is provided inside the supporting side wall (3), wherein a second hot air circulation chamber (11) is provided inside the supporting top seat (6), a hot air inlet pipe (12) is connected to the side of the supporting top seat (6), and a plurality of drying blowers (9) are provided on the side of the supporting top seat (6) near the drying chamber base layer (1), characterized in that, The outer side of the support top seat (6) is connected to the connecting top cover (5), and a first hot air circulation cavity (7) is formed between the connecting top cover (5) and the support top seat (6). Several rolling bearings (22) are installed inside the support top seat (6), and a rotating rod (18) is rotatably connected inside the rolling bearings (22). Drive blades (19) and helical blades (8) are respectively sleeved on both sides of the surface of the rotating rod (18). The support top seat (6) is provided with several sets of air guide components. The air guide components are used to introduce the hot air inside the second hot air circulation chamber (11) into the first hot air circulation chamber (7), and make the hot air drive the drive blade (19) and the rotating rod (18) to rotate through the rolling bearing (22). The air guiding assembly includes a second air guiding plate (23) and a first air guiding plate (20), and the second air guiding plate (23) and the first air guiding plate (20) are both inclinedly arranged on the surface of the support top seat (6). The second air guiding plate (23) and the first air guiding plate (20) of the same set of air guiding assemblies are symmetrically arranged with the rotating rod (18) as the central reference. Air outlet holes (24) are opened on the surface of the support top seat (6) near the second air guiding plate (23) and the first air guiding plate (20), and an electromagnetic adsorption iron block (21) is installed on one side inside the air outlet hole (24). A rotating shaft (25) is installed inside the support top seat (6) near the second air guiding plate (23) and the first air guiding plate (20), and a third air guiding plate (27) is rotatably connected to the outside of the rotating shaft (25), and the third air guiding plate (27) is an iron component. All the third air guide plates (27) installed inside the support top seat (6) are inclined towards the hot air inlet pipe (12), and the first air guide plate (20) and the second air guide plate (23) in the same group of air guide components are inclined towards the drive blade (19). The number of drive blades (19) is set to three, and the three drive blades (19) are arranged at equal angles to the outside of the rotating rod (18) with the rotating rod (18) as the axis. The drive blades (19) and the rotating rod (18) are inclined at an angle between 15 and 30 degrees.

2. The mobile tunnel kiln drying system according to claim 1, characterized in that, The spiral blade (8) is disposed inside the drying blower (9), and the drying blower (9), the rotating rod (18) and the spiral blade (8) are all on the same axis.

3. The mobile tunnel kiln drying system according to claim 1, characterized in that, The air guide assembly also includes two limiting blocks (26), which are fixedly connected inside the support top seat (6) near the rotating shaft (25) and are used to limit the rotation angle of the third air guide plate (27).

4. The mobile tunnel kiln drying system according to claim 1, characterized in that, The surface of the drying chamber base layer (1) is provided with an installation groove (10), and a fan cover (17) is provided inside the installation groove (10). A fan (16) is installed inside the fan cover (17). The two sides of the connecting top cover (5) are respectively connected to a first connecting air pipe (4) and a second connecting air pipe (15). Electric air valves (2) are installed on the outside of the first connecting air pipe (4) and the second connecting air pipe (15). A pre-embedded main air pipe (13) is provided inside the drying chamber base layer (1), and several pre-embedded auxiliary air pipes (14) are provided on the outside of the pre-embedded main air pipe (13).

5. A mobile tunnel kiln drying system according to claim 4, characterized in that, The ends of the first connecting air pipe (4) and the second connecting air pipe (15) away from the connecting top cover (5) are both located inside the fan housing (17), and one end of the pre-embedded main air pipe (13) is connected to the inside of the fan housing (17).

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