Novel rotary kiln

Abstract

The utility model relates to the technical field of rotary kilns, and provides a novel rotary kiln which comprises a kiln head seat, one side of the inner wall of the kiln head seat is fixedly connected with a conveying hopper, one side of the conveying hopper is rotatably connected with a kiln body extending to the outside of the kiln head seat, one side of the kiln body is rotatably connected with a kiln tail seat, and the kiln tail seat is fixedly connected with the conveying hopper. A rotary gear is fixedly connected to the middle position of the surface of the kiln body, a driving gear meshed with the rotary gear is rotatably connected to the bottom end of the rotary gear, a carrier roller is rotatably connected to the upper end of the inner wall of the bracket, and a self-cleaning assembly is arranged on the inner wall of the bracket. And the sliding block slides to drive the cleaning plate to ascend by utilizing the elastic force of the fixed spring, so that the top end of the scraping plate clings to the bottom end of the carrier roller, and after the subsequent carrier roller rotates, the surface of the carrier roller can be rotationally scraped by utilizing the scraping plate, impurities on the surface of the carrier roller are scraped and cleaned, and the cleanliness of the surface of the carrier roller is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, in particular to a novel rotary kiln. Background Art

[0002] A rotary kiln refers to a rotating calcining kiln, which belongs to the category of building materials equipment. It is widely used in the building materials industry, mineral processing, chemical industry and environmental protection industry. The rotary kiln continuously rotates to make the material burn in the rotary kiln and continuously approach the discharge port, thereby achieving the corresponding production purpose.

[0003] After searching, the existing patent (Announcement No.: CN218764509U) discloses a rotary kiln, including a kiln body, a kiln head seat and a kiln tail seat, the left and right sides of the kiln body are respectively rotatably connected to the opposite side of the kiln head seat and the kiln tail seat, the bottom of the kiln head seat and the kiln tail seat are fixedly connected with two connecting frames, the bottom of the connecting frame is provided with a mounting bottom plate, and the top of the mounting bottom plate is fixedly connected with a fixed plate. The rotary kiln, by opening the hydraulic cylinder, drives the piston rod to move, when the piston rod moves to the left, it can drive the movable seat at the bottom of the kiln head seat to move to the left on the fixed plate, and with the movement of the movable seat, drives the connecting frame to rotate upward, and at the same time, the height of the kiln head seat rises, so that the angle between the kiln body and the mounting bottom plate becomes larger, so that it is convenient for the material inside the kiln body to move toward the kiln tail seat, and it is convenient to discharge the incinerated material, and it is not easy to have the material accumulation and residue.

[0004] However, in the above scheme, it is inconvenient to self-clean the rollers. When the rollers support the rotary kiln to rotate, some impurities will inevitably adhere to the surface of the rollers. However, if these impurities accumulate too much, they will hinder the rotation of the rotary kiln, thereby affecting its rotary combustion processing operation.

[0005] In view of this, the utility model proposes a novel rotary kiln. Utility Model Content

[0006] The utility model provides a novel rotary kiln, which solves the problem of inconvenience in self-cleaning of rollers in the related art.

[0007] The technical scheme of the utility model is as follows: a novel rotary kiln comprises a kiln head seat, one side of the inner wall of the kiln head seat is fixedly connected with a feed hopper, one side of the top of the feed hopper is fixedly connected with a feed pipe, one side of the inner top wall of the kiln head seat is provided with a vibration assembly, the top of the kiln head seat is fixedly connected with a feed hopper, the bottom end of the feed hopper is communicated with the top of the feed pipe, one side of the feed hopper is rotatably connected with a kiln body extending to the outside of the kiln head seat, one side of the kiln body is rotatably connected with a kiln tail seat, a rotary gear is fixedly connected at the middle position of the kiln body surface, and the bottom end of the rotary gear is rotatably connected with a A driving gear meshed with a rotating gear, a driving motor is provided on one side of the driving gear, the output end of the driving motor is fixedly connected to a reducer through a coupling, one side of the reducer is fixedly connected to one side of the driving gear, wheel belts are fixedly connected to both sides of the surface of the kiln body, a collecting seat is fixedly connected to both sides below the kiln body, an oil drain pipe is fixedly connected to the lower end of one side of the collecting seat, a filter is fixedly connected to the inner wall of the collecting seat, a bracket is fixedly connected to the upper end of the inner wall of the collecting seat, a roller is rotatably connected to the upper end of the inner wall of the bracket, and a self-cleaning component is provided on the inner wall of the bracket.

[0008] The self-cleaning component includes a slide groove, which is opened at the upper end of the inner wall of the bracket, and the inner bottom wall of the slide groove is fixedly connected with a fixed spring, the top of the fixed spring is fixedly connected with a slider, one end of the slider is fixedly connected with a cleaning plate extending to the outside of the bracket, and the top of the cleaning plate is fixedly connected with a scraper, and the elastic force of the fixed spring is used to make the slider slide and drive the cleaning plate to rise, so that the top of the scraper is close to the bottom end of the roller, so that after the subsequent rotation of the roller, the scraper can be used to rotate and scrape the surface of the roller to scrape off and clean impurities on the surface of the roller, thereby ensuring the cleanliness of the surface of the roller.

[0009] Preferably, a sliding structure is formed between the slider and the inside of the slide groove, and the slider and the slide groove are convex in top view, so that the cleaning plate slides up and down more smoothly.

[0010] Preferably, the shape of the scraper in the side view is an isosceles trapezoid, and the length of the scraper is greater than the length of the roller, so as to facilitate better rotation and scraping of the surface of the roller.

[0011] Preferably, a guide plate is fixedly connected to the inner bottom wall of the collecting seat, and the guide plate is inclined at an angle of twenty degrees to the horizontal direction, so as to facilitate faster and more complete discharge of the filtered lubricating oil through the oil drain pipe.

[0012] Preferably, one side of the collecting seat is movably connected to a mounting plate, and one side of the mounting plate is fixedly connected to one side of the filter screen, four corners of one side of the mounting plate are movably connected to fixing bolts, and one side of the collecting seat is provided with a bolt hole threadedly matched with the fixing bolt, and the fixing bolt and the threaded match inside the bolt hole are utilized to achieve disassembly and assembly between the mounting plate and the collecting seat, so that the filter screen can be easily disassembled and cleaned to prevent blockage.

[0013] Preferably, finger grooves are provided at the top and bottom of the mounting plate, and the finger grooves are arc-shaped, so that the user can more conveniently pinch the mounting plate with his fingers to realize the disassembly and assembly of the filter.

[0014] Preferably, the filter screen has an arc shape in the side view, and one side of the filter screen is fixedly connected to one side of the mounting plate by bolts, so that the filter screen can more easily collect and store impurities scraped off the surface of the roller.

[0015] Preferably, the vibration component includes a fixed groove, which is provided on one side of the top wall of the kiln head seat, and the inner wall of the fixed groove is fixedly connected with a return spring, one side of the return spring is fixedly connected with a limit block, and the bottom end of the limit block is fixedly connected with a sliding plate extending to the outside of the fixed groove, one side of the sliding plate is fixedly connected with a rubber block, and the other side of the sliding plate is fixedly connected with a fixed block, the upper end of the inner wall of the kiln head seat is fixedly connected with a support plate, and the top end of the support plate is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a cam through a coupling, and the cam is driven to rotate by starting the servo motor and periodically collides with the fixed block, and the elastic force of the return spring is used to make the sliding plate move back and forth to drive the rubber block to periodically collide with the surface of the feed pipe, thereby realizing vibratory feeding of the feed pipe and avoiding blockage of materials inside the feed pipe and affecting the subsequent feeding rate.

[0016] Preferably, the fixing block is arc-shaped in a top view, and the fixing block and the cam are both in the same horizontal plane, so as to facilitate better rotational contact with the cam, thereby facilitating the back-and-forth movement and collision of the sliding plate.

[0017] Preferably, a sliding structure is formed between the limit block and the interior of the fixing groove, and a welded integrated structure is formed between the bottom end of the limit block and the top end of the sliding plate, so that the sliding plate can slide back and forth more smoothly.

[0018] The working principle and beneficial effects of the utility model are:

[0019] 1. The utility model provides a self-cleaning assembly and a filter screen, and utilizes the elastic force of a fixed spring to make the slider slide and drive the cleaning plate to rise, so that the top of the scraper plate is close to the bottom of the roller, so that after the subsequent roller rotates, the scraper plate can be used to rotate and scrape the surface of the roller to scrape off and clean the impurities on the surface of the roller, thereby ensuring the cleanliness of the surface of the roller, avoiding excessive impurities on the surface of the roller affecting the normal rotation of the kiln body, and improving its practicality. At the same time, the filter screen can be used to separate the scraped impurities and lubricating oil, which is convenient for recycling and reusing the lubricating oil. The filter screen can be taken out from the inside of the collection seat through the mounting plate, which is convenient for taking out the filter screen, and then the impurities separated by the filter screen can be processed centrally, thereby realizing the self-cleaning effect of the roller;

[0020] 2. The utility model sets a vibration component, starts the servo motor to drive the cam to rotate, periodically collides with the fixed block, and uses the elastic force of the reset spring to make the sliding plate move back and forth to drive the rubber block to periodically collide with the surface of the feed pipe, thereby realizing the vibration feeding of the feed pipe, avoiding the blockage of materials inside the feed pipe and affecting the subsequent feeding rate, ensuring the uniform and smooth feeding of materials, and thus facilitating the subsequent rotary processing, improving its practicability, thereby achieving the effect of facilitating vibration feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the kiln head seat of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the vibration component of the utility model;

[0026] Figure 5 It is an enlarged structural diagram of the self-cleaning component of the utility model;

[0027] Figure 6 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0028] In the figure: 1, kiln body; 2, rotary gear; 3, roller; 4, kiln tail seat; 5, collecting seat; 6, self-cleaning component; 601, cleaning plate; 602, slider; 603, slide; 604, fixing spring; 605, scraper; 7, driving gear; 8, reducer; 9, driving motor; 10, filter screen; 11, wheel belt; 12, kiln head seat; 13, feed hopper; 14, bracket; 15, mounting plate; 1 6. Fixing bolt; 17. Oil drain pipe; 18. Finger groove; 19. Guide plate; 20. Vibration assembly; 2001. Cam; 2002. Servo motor; 2003. Fixing groove; 2004. Return spring; 2005. Fixing block; 2006. Support plate; 2007. Rubber block; 2008. Sliding plate; 2009. Limiting block; 21. Feed pipe; 22. Feed hopper; 23. Bolt hole. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1

[0031] The preferred embodiment of the new rotary kiln provided by the utility model is as follows: Figures 1 to 6 As shown: a new type of rotary kiln, including a kiln head seat 12, a feeding hopper 22 is fixedly connected to one side of the inner wall of the kiln head seat 12, a feeding pipe 21 is fixedly connected to one side of the top of the feeding hopper 22, a vibration component 20 is arranged on one side of the inner top wall of the kiln head seat 12, a feeding hopper 13 is fixedly connected to the top of the kiln head seat 12, the bottom end of the feeding hopper 13 is connected to the top of the feeding pipe 21, one side of the feeding hopper 22 is rotatably connected to a kiln body 1 extending to the outside of the kiln head seat 12, one side of the kiln body 1 is rotatably connected to a kiln tail seat 4, a rotating gear 2 is fixedly connected to the middle position of the surface of the kiln body 1, and the bottom end of the rotating gear 2 is rotatably connected to the rotating gear 2. A driving gear 7 is meshed with the gear 2, and a driving motor 9 is arranged on one side of the driving gear 7. The output end of the driving motor 9 is fixedly connected to a reducer 8 through a coupling, and one side of the reducer 8 is fixedly connected to one side of the driving gear 7. Wheel belts 11 are fixedly connected to both sides of the surface of the kiln body 1, and a collecting seat 5 is fixedly connected to both sides below the kiln body 1. The lower end of one side of the collecting seat 5 is fixedly connected to an oil drain pipe 17, and the inner wall of the collecting seat 5 is fixedly connected to a filter screen 10. The upper end of the inner wall of the collecting seat 5 is fixedly connected to a bracket 14, and the upper end of the inner wall of the bracket 14 is rotatably connected to a roller 3, and the inner wall of the bracket 14 is provided with a self-cleaning component 6.

[0032] The self-cleaning component 6 includes a slide groove 603, which is opened at the upper end of the inner wall of the bracket 14. The inner bottom wall of the slide groove 603 is fixedly connected with a fixed spring 604, and the top of the fixed spring 604 is fixedly connected with a slider 602. One end of the slider 602 is fixedly connected with a cleaning plate 601 extending to the outside of the bracket 14, and the top of the cleaning plate 601 is fixedly connected with a scraper 605. The elastic force of the fixed spring 604 is used to make the top of the scraper 605 close to the bottom end of the roller 3, so that after the subsequent rotation of the roller 3, the scraper 605 can be used to rotate and scrape the surface of the roller 3 to scrape off and clean the impurities on the surface of the roller 3, thereby ensuring the cleanliness of the surface of the roller 3.

[0033] In this embodiment, a sliding structure is formed between the slider 602 and the inside of the slide groove 603, and the shape of the slider 602 and the slide groove 603 in the top view is convex. The sliding of the convex slider 602 inside the slide groove 603 makes the cleaning plate 601 slide up and down more smoothly.

[0034] In this embodiment, the scraper 605 is in the shape of an isosceles trapezoid in side view, and the length of the scraper 605 is greater than the length of the roller 3. The isosceles trapezoidal scraper 605 is used to better rotate and scrape the surface of the roller 3.

[0035] In this embodiment, the inner bottom wall of the collecting seat 5 is fixedly connected with a guide plate 19, and the guide plate 19 is inclined at an angle of twenty degrees to the horizontal direction. The inclined guide plate 19 can be used to guide the filtered lubricating oil so that it can be discharged faster and more thoroughly through the oil drain pipe 17.

[0036] In this embodiment, one side of the collecting seat 5 is movably connected to a mounting plate 15, and one side of the mounting plate 15 is fixedly connected to one side of the filter screen 10, and four corners of one side of the mounting plate 15 are movably connected to fixing bolts 16, and one side of the collecting seat 5 is provided with bolt holes 23 threadedly matched with the fixing bolts 16. The fixing bolts 16 and the threads inside the bolt holes 23 are matched to achieve disassembly and assembly between the mounting plate 15 and the collecting seat 5, so that the filter screen 10 can be disassembled and cleaned to prevent blockage.

[0037] In this embodiment, finger grooves 18 are provided at the top and bottom of the mounting plate 15 , and the finger grooves 18 are arc-shaped. The arc-shaped finger grooves 18 make it easier for the user to grasp the mounting plate 15 with their fingers to disassemble and assemble the filter 10 .

[0038] In this embodiment, the shape of the filter screen 10 in the side view is arc-shaped, and one side of the filter screen 10 is fixedly connected to one side of the mounting plate 15 by bolts. The arc-shaped filter screen 10 makes it easier for the filter screen 10 to collect and store impurities on the surface of the scraper roller 3.

[0039] Example 2

[0040] On the basis of Example 1, the preferred embodiment of the new rotary kiln provided by the utility model is as follows Figures 1 to 6 As shown: the vibration assembly 20 includes a fixed groove 2003, the fixed groove 2003 is opened on one side of the inner top wall of the kiln head seat 12, and the inner wall of the fixed groove 2003 is fixedly connected with a return spring 2004, one side of the return spring 2004 is fixedly connected with a limit block 2009, and the bottom end of the limit block 2009 is fixedly connected with a sliding plate 2008 extending to the outside of the fixed groove 2003, one side of the sliding plate 2008 is fixedly connected with a rubber block 2007, and the other side of the sliding plate 2008 is fixedly connected with a fixed block 2005, and the upper end of the inner wall of the kiln head seat 12 is fixedly connected with A support plate 2006 is provided, and a servo motor 2002 is fixedly connected to the top of the support plate 2006. The output end of the servo motor 2002 is fixedly connected to the cam 2001 via a coupling. The servo motor 2002 is started to drive the cam 2001 to rotate, and periodically collide with the fixed block 2005. By utilizing the elastic force of the reset spring 2004, the sliding plate 2008 can move back and forth to drive the rubber block 2007 to periodically collide with the surface of the feed pipe 21, thereby realizing vibration feeding of the feed pipe 21 and avoiding blockage of materials inside the feed pipe 21 and affecting the subsequent feeding rate.

[0041] In this embodiment, the shape of the fixing block 2005 in a top view is arc-shaped, and the fixing block 2005 and the cam 2001 are both in the same horizontal plane. The arc-shaped fixing block 2005 facilitates better rotational contact with the cam 2001.

[0042] In this embodiment, a sliding structure is formed between the limit block 2009 and the inside of the fixed groove 2003, and the bottom end of the limit block 2009 and the top end of the sliding plate 2008 are welded into an integrated structure. The sliding of the limit block 2009 in the fixed groove 2003 makes the sliding back and forth of the sliding plate 2008 smoother.

[0043] The working principle and use process of the utility model are as follows: first, the material is added into the feed hopper 13, and then transported to the inside of the feed hopper 22 through the feed pipe 21. At the same time, during the feeding process through the feed pipe 21, the servo motor 2002 can be started to drive the cam 2001 to rotate, and periodically collide with the fixed block 2005, so that the sliding plate 2008 slides to drive the limit block 2009 to slide in the fixed groove 2003 to stretch the reset spring 2004, so that one side of the rubber block 2007 hits the surface of the feed pipe 21. After the cam 2001 rotates away, the elastic force of the reset spring 2004 can be used to make the limit block 2009 slide and drive the sliding plate 2008 to slide back to its original position, and then the sliding plate 2008 moves back and forth to drive the rubber block 2007 to periodically hit the surface of the feed pipe 21, so as to realize the vibration feeding of the feed pipe 21, and avoid the material from being blocked inside the feed pipe 21 and affecting the subsequent feeding rate;

[0044] After that, the material is transported to the inside of the kiln body 1, and the drive motor 9 is started, and the reducer 8 is used to drive the drive gear 7 to rotate slowly. At this time, the mutual meshing between the drive gear 7 and the rotary gear 2 is used to make the rotary gear 2 rotate to drive the kiln body 1 to rotate, and the roller 3 and the belt 11 are used to make the kiln body 1 rotate smoothly;

[0045] At the same time, during the rotation of the roller 3, the elastic force of the fixed spring 604 can be used to make the slider 602 slide inside the slide groove 603 to drive the cleaning plate 601 to rise, so that the top of the scraper 605 is close to the bottom of the roller 3, so that after the subsequent rotation of the roller 3, the scraper 605 can be used to rotate and scrape the surface of the roller 3 to scrape off and clean the impurities on the surface of the roller 3, thereby ensuring the cleanliness of the surface of the roller 3;

[0046] The scraped impurities and excess lubricating oil can fall down, and at this time, the two are filtered and separated by the filter screen 10. The impurities fall on the top of the filter screen 10, and the filtered lubricating oil can be guided by the inclined guide plate 19 to facilitate its faster and more thorough discharge through the oil drain pipe 17. At the same time, the fixing bolt 16 can be regularly rotated until it is completely disengaged from the bolt hole 23, and then the filter screen 10 can be taken out from the collection seat 5 through the mounting plate 15, so as to centrally process the impurities filtered by the filter screen 10.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel rotary kiln, comprising a kiln head seat (12), characterized in that: A feed hopper (22) is fixedly connected to one side of the inner wall of the kiln head seat (12), a feed pipe (21) is fixedly connected to one side of the top of the feed hopper (22), a vibration assembly (20) is arranged on one side of the inner top wall of the kiln head seat (12), a feed hopper (13) is fixedly connected to the top of the kiln head seat (12), the bottom end of the feed hopper (13) is connected to the top of the feed pipe (21), one side of the feed hopper (22) is rotatably connected to a kiln body (1) extending to the outside of the kiln head seat (12), one side of the kiln body (1) is rotatably connected to a kiln tail seat (4), a rotary gear (2) is fixedly connected to the middle position of the surface of the kiln body (1), and the bottom end of the rotary gear (2) is rotatably connected to a driving gear (7) meshing with the rotary gear (2). ), a driving motor (9) is provided on one side of the driving gear (7), an output end of the driving motor (9) is fixedly connected to a reducer (8) via a coupling, one side of the reducer (8) is fixedly connected to one side of the driving gear (7), wheel belts (11) are fixedly connected to both sides of the surface of the kiln body (1), a collecting seat (5) is fixedly connected to both sides below the kiln body (1), an oil drain pipe (17) is fixedly connected to the lower end of one side of the collecting seat (5), a filter screen (10) is fixedly connected to the inner wall of the collecting seat (5), a bracket (14) is fixedly connected to the upper end of the inner wall of the collecting seat (5), a roller (3) is rotatably connected to the upper end of the inner wall of the bracket (14), and a self-cleaning component (6) is provided on the inner wall of the bracket (14); The self-cleaning component (6) comprises a slide groove (603), wherein the slide groove (603) is arranged at the upper end of the inner wall of the bracket (14), the inner bottom wall of the slide groove (603) is fixedly connected with a fixing spring (604), the top end of the fixing spring (604) is fixedly connected with a sliding block (602), one end of the sliding block (602) is fixedly connected with a cleaning plate (601) extending to the outside of the bracket (14), and the top end of the cleaning plate (601) is fixedly connected with a scraper (605).

2. A novel rotary kiln according to claim 1, characterized in that: A sliding structure is formed between the slider (602) and the interior of the slide groove (603), and the slider (602) and the slide groove (603) are convex in top view.

3. A novel rotary kiln according to claim 1, characterized in that: The scraper (605) has an isosceles trapezoidal shape in a side view, and the length of the scraper (605) is greater than the length of the roller (3).

4. A novel rotary kiln according to claim 1, characterized in that: A guide plate (19) is fixedly connected to the inner bottom wall of the collecting seat (5), and the guide plate (19) is inclined at an angle of 20 degrees to the horizontal direction.

5. A novel rotary kiln according to claim 1, characterized in that: One side of the collecting seat (5) is movably connected to a mounting plate (15), and one side of the mounting plate (15) is fixedly connected to one side of the filter screen (10). Four corners of one side of the mounting plate (15) are movably connected to fixing bolts (16), and one side of the collecting seat (5) is provided with bolt holes (23) threadedly matched with the fixing bolts (16).

6. A novel rotary kiln according to claim 5, characterized in that: Finger grooves (18) are provided at the top and bottom of the mounting plate (15), and the shape of the finger grooves (18) is arc-shaped.

7. A novel rotary kiln according to claim 1, characterized in that: The filter screen (10) is arc-shaped in a side view, and one side of the filter screen (10) is fixedly connected to one side of a mounting plate (15) by means of bolts.

8. A novel rotary kiln according to claim 1, characterized in that: The vibration assembly (20) comprises a fixing groove (2003), wherein the fixing groove (2003) is provided on one side of the inner top wall of the kiln head seat (12), and a return spring (2004) is fixedly connected to the inner wall of the fixing groove (2003), one side of the return spring (2004) is fixedly connected to a limit block (2009), and the bottom end of the limit block (2009) is fixedly connected to a sliding plate (2008) extending to the outside of the fixing groove (2003), one side of the sliding plate (2008) is fixedly connected to a rubber block (2007), and the other side of the sliding plate (2008) is fixedly connected to a fixing block (2005), the upper end of the inner wall of the kiln head seat (12) is fixedly connected to a support plate (2006), and the top end of the support plate (2006) is fixedly connected to a servo motor (2002), and the output end of the servo motor (2002) is fixedly connected to a cam (2001) via a coupling.

9. A novel rotary kiln according to claim 8, characterized in that: The shape of the fixing block (2005) in a top view is an arc, and the fixing block (2005) and the cam (2001) are both located in the same horizontal plane.

10. A novel rotary kiln according to claim 8, characterized in that: A sliding structure is formed between the limit block (2009) and the interior of the fixed groove (2003), and a welded integrated structure is formed between the bottom end of the limit block (2009) and the top end of the sliding plate (2008).

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