A fire viewing hole for rotary kiln that is easy to clean

Abstract

The invention discloses a fire-viewing hole for a rotary kiln which is easy to clean and belongs to the field of fire-viewing holes for rotary kilns. The fire-viewing hole for a rotary kiln which is easy to clean comprises a rotary kiln, one end of the rotary kiln is rotatably connected with a kiln head cover, one side outer surface of the kiln head cover is fixedly connected with a fire-viewing tube, and the fire-viewing tube is communicated with the kiln head cover, glass is arranged inside the fire-viewing tube, the upper end of the fire-viewing tube is fixedly connected with a control board, one end of the control board extends to the inside of the kiln head cover; a first cover plate is arranged on one side of the fire-viewing tube, and an operator can control the first cover plate to drive a second cover plate inside the kiln head cover to move together, and open or close the two ends of the fire-viewing tube at the same time. After the second cover plate closes the fire-viewing tube, the problem of dust in the rotary kiln adhering to the glass can be avoided, thereby ensuring the light transmittance of the glass. The covering of the fire-viewing tube by the first cover plate can avoid the problem of dust in the air adhering to the glass.

Description

Technical Field

[0001] The invention relates to the field of a fire viewing hole for a rotary kiln, and more particularly to a fire viewing hole for a rotary kiln which is easy to clean. Background Art

[0002] Rotary kiln refers to a rotary calcining kiln, commonly known as a rotary kiln, which belongs to the category of building materials equipment. Rotary kilns can be divided into cement kilns, metallurgical chemical kilns and lime kilns according to the different materials they process.

[0003] A kiln head cover is usually set at one end of the rotary kiln. The kiln head cover is the intermediate body connecting the kiln head end with the equipment of the next process in the process. It is the area where the fire watcher performs production operations. Therefore, there are fire viewing holes and inspection doors on the kiln head cover. When the rotary kiln is burning, the flame burning condition in the rotary kiln chamber and the shape of the incoming materials are generally observed through the fire viewing hole. The importance of the fire viewing hole is self-evident. However, during the operation of the kiln body, the material dust in the kiln chamber often adheres to the inner surface of the observation glass, which creates a major obstacle to observing the flame burning condition in the rotary kiln chamber. The traditional fire viewing hole needs to be disassembled as a whole to clean and wipe the observation glass because the observation glass is embedded in the device. This method is time-consuming and labor-intensive, and has certain risks, and cannot meet the production needs of quick cleaning.

[0004] In order to solve the above problems, a fire-viewing hole for rotary kiln which is easy to clean was invented. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a fire-viewing hole for a rotary kiln that is easy to clean. The operator can control the first cover plate to drive the second cover plate inside the kiln head cover to move together, and at the same time open or close the two ends of the fire-viewing tube. After the second cover plate closes the fire-viewing tube, the problem of dust in the rotary kiln adhering to the glass can be avoided, thereby ensuring the light transmittance of the glass. The covering of the fire-viewing tube by the first cover plate can avoid the problem of dust in the air adhering to the glass, thereby ensuring that the outer surfaces on both sides of the glass are always kept clean.

[0007] 2. Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A fire-viewing hole for a rotary kiln that is easy to clean, comprising a rotary kiln, one end of the rotary kiln is rotatably connected to a kiln head cover, a fire-viewing tube is fixedly connected to an outer surface of one side of the kiln head cover, and the fire-viewing tube is communicated with the kiln head cover, glass is arranged inside the fire-viewing tube, a control panel is fixedly connected to the upper end of the fire-viewing tube, and one end of the control panel extends to the inside of the kiln head cover;

[0010] A first cover plate is provided on one side of the fire viewing tube, a connecting rod is fixedly connected to the upper end of the first cover plate, one end of the connecting rod is designed in a semi-arc structure, a second meshing tooth evenly distributed is fixedly connected to the semi-arc surface of the connecting rod, a second rotating shaft is penetrated inside one end of the connecting rod, and the second rotating shaft is fixedly connected to the connecting rod, both ends of the second rotating shaft are rotatably connected to the control board, and a first movable groove is provided on the upper surface of the control board at a position corresponding to the connecting rod;

[0011] A second cover plate is provided at the other end of the fire viewing tube, and two groups of connecting blocks are fixedly connected to the upper end of the second cover plate. A first rotating shaft is provided inside the connecting block, and the first rotating shaft is fixedly connected to the connecting block. Both ends of the first rotating shaft are rotatably connected to the control board, and a circle of first meshing teeth is fixedly connected to the side surface of the first rotating shaft, and the first meshing teeth are meshed with the second meshing teeth. A second movable groove is provided at one end of the control board at a position corresponding to the connecting block.

[0012] Furthermore, the glass is made of high temperature resistant material.

[0013] Furthermore, the upper end of the connecting rod is designed with an inclined surface, and a fixing rod is arranged above the connecting rod. One end of the fixing rod extends to the interior of the control board and is fixedly connected to a first spring. One end of the first spring is fixedly connected to the control board, and the outer circular surface of the fixing rod is slidably connected to the control board. One end of the fixing rod is designed with an arc-shaped structure, and a fixing hole is opened through the interior of the connecting rod near one end.

[0014] Furthermore, a paddle is fixedly connected to one end of the upper surface of the fixing rod, a slide groove is provided on the upper surface of the control panel at a position corresponding to the paddle, and the upper end of the paddle passes through the slide groove and extends to the outside.

[0015] Furthermore, a first clamping rod is fixedly connected to the side surface of the lower end of the first cover plate, a second clamping rod is arranged above the first clamping rod, one end of the first clamping rod and the second clamping rod are fixedly connected to a triangular block, the first clamping rod and the second clamping rod are clamped and connected via the triangular block, a second spring is fixedly connected to the upper surface of the second clamping rod, the upper end of the second spring is fixedly connected to the fire viewing tube, a pressing rod is fixedly connected to one end of the lower surface of the second clamping rod, the lower end of the pressing rod passes through the fire viewing tube and extends to the outside, and the side surface of the pressing rod is slidably connected to the fire viewing tube.

[0016] Furthermore, a rotating rod is provided through the inner center position of the glass, the outer cylindrical surface of the rotating rod is rotatably connected to the glass, a brush is fixedly connected to the lower surface of the rotating rod near the glass, and a scraper is fixedly connected to one end of the lower surface of the rotating rod, and the scraper and the brush are in the same direction.

[0017] Furthermore, a support rod is fixedly connected to the inner wall of the lower end of the fire viewing tube, and a control box is fixedly connected to the side surface of the upper end of the support rod, the right end of the rotating rod extends to the inside of the control box and is rotatably connected to the control box, a spring is fixedly connected to the side surface of the right end of the rotating rod, one end of the spring is fixedly connected to the inner wall of the control box, a silk thread is wound around the side surface of the rotating rod near the right end, and one end of the silk thread is fixedly connected to the rotating rod, a wire outlet hole is opened on the upper surface of the control box, and the other end of the silk thread passes through the wire outlet hole and is fixedly connected to the first cover plate.

[0018] Furthermore, two groups of screws are provided on the upper surface of the rotating rod, and the brush and the scraper are fixedly connected to the rotating rod through the screws.

[0019] Furthermore, a fixing ring plate is tightly provided on one side of the glass, and the outer circular surface of the fixing ring plate is fixedly connected to the inner wall of the fire viewing tube. A fixing ring plate is tightly provided on the other side of the glass, and the outer surface of one side of the fixing ring plate is fixedly connected with evenly distributed bolts. The fixing ring plate and the fixing ring plate are fixed by bolts to clamp the glass.

[0020] Furthermore, adjacent surfaces of the abutting ring plate and the fixing ring plate are both fixedly connected with sealing gaskets.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] (1) The present invention controls the first cover plate by the operator to drive the second cover plate inside the kiln head cover to move together, and at the same time opens or closes the two ends of the fire viewing tube. After the second cover plate closes the fire viewing tube, the problem of dust in the rotary kiln adhering to the glass can be avoided, thereby ensuring the light transmittance of the glass. The first cover plate covering the fire viewing tube can avoid the problem of dust in the air adhering to the glass, thereby ensuring that the outer surfaces of both sides of the glass are always kept clean.

[0024] (2) In the present invention, when the first cover plate covers the fire viewing tube, the first clamping rod will enter the side wall of the fire viewing tube and be clamped and fixed with the second clamping rod, that is, the first cover plate is fixed, and the second cover plate is also fixed, thereby avoiding the problem that the first cover plate and the second cover plate are opened when the rotary kiln rotates and affect the operation of the rotary kiln.

[0025] (3) When the first cover plate of the present invention is opened, the first cover plate will pull the thread, and when the thread is pulled, the rotating rod will be driven to rotate and the spring will be tightened at the same time. When the rotating rod rotates, the brush and the scraper will be driven to make a circular motion together. The brush and the scraper will clean the dust on the outer surface of the corresponding glass together, so that the inside and outside of the glass can be cleaned together, thereby ensuring the light transmittance of the glass.

[0026] (4) In the present invention, the operator unscrews the bolts so that the fixing ring plate and the clamping ring plate are no longer fixed. The clamping ring plate is first removed, and then the glass can be removed. After the glass is replaced, the glass can be fixed by clamping the fixing ring plate and the clamping ring plate and then tightening the bolts. The structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional view of the overall structure of the present invention;

[0028] Figure 2 It is a cross-sectional view of the kiln head cover and the rotary kiln of the present invention;

[0029] Figure 3 It is an internal cross-sectional view of a fire-viewing tube of the present invention;

[0030] Figure 4 is a three-dimensional view of the second cover plate and the connecting component of the present invention;

[0031] Figure 5 is a three-dimensional view of the first cover plate and the connecting component of the present invention;

[0032] Figure 6 For the present invention Figure 3 Section view at AA in the middle;

[0033] Figure 7 For the present invention Figure 3 Magnified view at B in the middle;

[0034] Figure 8 For the present invention Figure 3 Magnified view at center C.

[0035] Description of the numbers in the figure:

[0036] 1. Rotary kiln; 2. Fire viewing tube; 3. Glass; 4. First cover plate; 5. Second cover plate; 6. Control board; 7. Connecting block; 8. First rotating shaft; 9. First meshing tooth; 10. Connecting rod; 11. Second rotating shaft; 12. Second meshing tooth; 13. First movable groove; 14. Second movable groove; 15. Fixing hole; 16. Fixing rod; 17. First spring; 18. Pick; 19. Slide; 20. First clamping rod; 21. Second clamping rod; 22. Second spring; 23. Pressing rod; 24. Rotating rod; 25. Brush; 26. Scraper; 27. Support rod; 28. Fixed ring plate; 29. ​​Tightening ring plate; 30. Bolt; 31. Sealing pad; 32. Screw; 33. Control box; 34. Wire outlet hole; 35. Spring; 36. Silk thread; 37. Kiln head cover. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Embodiment 1:

[0041] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A fire-viewing hole for a rotary kiln that is easy to clean, comprising a rotary kiln 1, one end of the rotary kiln 1 is rotatably connected to a kiln head cover 37, a fire-viewing tube 2 is fixedly connected to an outer surface of one side of the kiln head cover 37, and the fire-viewing tube 2 is communicated with the kiln head cover 37, a glass 3 is arranged inside the fire-viewing tube 2, a control board 6 is fixedly connected to the upper end of the fire-viewing tube 2, and one end of the control board 6 extends to the inside of the kiln head cover 37;

[0042] A first cover plate 4 is provided on one side of the fire-viewing tube 2, a connecting rod 10 is fixedly connected to the upper end of the first cover plate 4, one end of the connecting rod 10 is designed in a semi-arc structure, and a uniformly distributed second meshing tooth 12 is fixedly connected to the semi-arc surface of the connecting rod 10, a second rotating shaft 11 is penetrated inside one end of the connecting rod 10, and the second rotating shaft 11 is fixedly connected to the connecting rod 10, and both ends of the second rotating shaft 11 are rotatably connected to the control board 6, and a first movable groove 13 is opened on the upper surface of the control board 6 at a position corresponding to the connecting rod 10;

[0043] A second cover plate 5 is provided at the other end of the fire viewing tube 2, and two groups of connecting blocks 7 are fixedly connected to the upper end of the second cover plate 5. A first rotating shaft 8 is penetrated inside the connecting block 7, and the first rotating shaft 8 is fixedly connected to the connecting block 7. Both ends of the first rotating shaft 8 are rotatably connected to the control panel 6. A circle of first meshing teeth 9 is fixedly connected to the side surface of the first rotating shaft 8, and the first meshing teeth 9 are meshed with the second meshing teeth 12. A second movable groove 14 is provided at one end of the control panel 6 at a position corresponding to the connecting block 7.

[0044] like Figure 3 , Figure 4 As shown, the glass 3 is made of high temperature resistant material.

[0045] like Figure 6 As shown, the upper end of the connecting rod 10 is designed with an inclined surface, and a fixing rod 16 is arranged above the connecting rod 10. One end of the fixing rod 16 extends to the inside of the control board 6 and is fixedly connected to a first spring 17. One end of the first spring 17 is fixedly connected to the control board 6. The outer circular surface of the fixing rod 16 is slidably connected to the control board 6. One end of the fixing rod 16 is designed with an arc-shaped structure, and a fixing hole 15 is opened through the inside of the connecting rod 10 near one end.

[0046] like Figure 6 As shown, a paddle 18 is fixedly connected to one end of the upper surface of the fixing rod 16 , a slide groove 19 is provided on the upper surface of the control panel 6 at a position corresponding to the paddle 18 , and the upper end of the paddle 18 passes through the slide groove 19 and extends to the outside.

[0047] like Figure 7As shown, the lower end side surface of the first cover plate 4 is fixedly connected with a first clamping rod 20, and a second clamping rod 21 is arranged above the first clamping rod 20. One end of the first clamping rod 20 and the second clamping rod 21 are fixedly connected with a triangular block, and the first clamping rod 20 and the second clamping rod 21 are clamped and connected through the triangular block. The upper surface of the second clamping rod 21 is fixedly connected with a second spring 22, and the upper end of the second spring 22 is fixedly connected to the fire viewing tube 2. One end of the lower surface of the second clamping rod 21 is fixedly connected with a pressing rod 23, and the lower end of the pressing rod 23 penetrates the fire viewing tube 2 and extends to the outside, and the side surface of the pressing rod 23 is slidably connected to the fire viewing tube 2.

[0048] When the rotary kiln 1 is burning, the flame burning condition in the rotary kiln chamber, the shape of the incoming materials, etc. are generally observed through the fire-viewing hole. However, during the operation of the kiln body, the material dust in the kiln chamber often adheres to the inner surface of the observation glass, which creates a major obstacle to observing the flame burning condition in the rotary kiln 1. The traditional fire-viewing hole has the observation glass embedded in the device, so it needs to be disassembled as a whole before cleaning and wiping the observation glass. This method is time-consuming and labor-intensive, and has certain risks, and cannot meet the production needs of quick cleaning. When it is necessary to observe the situation inside the rotary kiln 1, first press the pressing rod 23 to drive the second clamping rod 21 to compress the second spring 22, and make the second clamping rod 21 and the first clamping rod 20 no longer clamped, and then rotate the first cover plate 4 upward. When the first cover plate 4 rotates upward, it will drive the connecting rod 10 to rotate together, and the second meshing teeth 12 on the connecting rod 10 will engage with the first meshing teeth 9. The first rotating shaft 8 rotates, thereby driving the first rotating shaft 8 to rotate. When the first rotating shaft 8 rotates, it will drive the second cover plate 5 and the connecting block 7 to rotate together, so that the first cover plate 4 and the second cover plate 5 rotate in opposite directions, and at the same time, the two ends of the fire viewing tube 2 are opened, and the operator can observe the situation inside the rotary kiln 1 through the fire viewing tube 2. When long-term observation is required, in order to avoid the operator's arm from feeling sore and numb due to long-term control of the first cover plate 4 by the operator, the operator can continuously rotate the first cover plate 4, so that the inclined surface of the connecting rod 10 presses against the fixing rod 16 and compresses the first spring 17. As the connecting rod 10 continues to rotate, the fixing hole 15 will correspond to the fixing rod 16 at last, and then the compressed first spring 17 pushes the connecting rod 10 into the fixing hole 15 to fix the connecting rod 10, and at the same time, the first cover plate 4 and the second cover plate 5 are fixed. The operator does not need to touch the first cover plate 4 to observe.

[0049] After the observation, the paddle 18 is toggled to drive the fixing rod 16 to compress the first spring 17, and then the fixing rod 16 is disengaged from the fixing hole 15, and the fixing rod 16 no longer fixes the connecting rod 10, and the first cover plate 4 and the second cover plate 5 both rotate downward with gravity, and finally the two ends of the fire viewing tube 2 are closed, so as to avoid the dust in the rotary kiln 1 adhering to the glass 3, and ensure the light transmittance of the glass 3. The covering of the fire viewing tube 2 by the first cover plate 4 can avoid the dust in the air adhering to the glass 3, and ensure that the outer surfaces of both sides of the glass 3 are always kept clean. When the first cover plate 4 covers the fire viewing tube 2, the first clamping rod 20 will enter the side wall of the fire viewing tube 2 and realize clamping and fixing with the second clamping rod 21, that is, the first cover plate 4 is fixed, so as to avoid the first cover plate 4 from opening when the rotary kiln 1 rotates. In addition, the glass 3 is made of high temperature resistant material, which can increase the service life of the glass 3 and avoid the problem of glass 3 bursting during use.

[0050] like Figure 3 As shown, a rotating rod 24 is provided through the inner center position of the glass 3, the outer cylindrical surface of the rotating rod 24 is rotatably connected to the glass 3, a brush 25 is fixedly connected to the lower surface of the rotating rod 24 near the glass 3, and a scraper 26 is fixedly connected to one end of the lower surface of the rotating rod 24, and the scraper 26 and the brush 25 are in the same direction.

[0051] like Figure 3 As shown, a support rod 27 is fixedly connected to the inner wall of the lower end of the fire viewing tube 2, a control box 33 is fixedly connected to the upper end side surface of the support rod 27, the right end of the rotating rod 24 extends to the inside of the control box 33 and is rotatably connected to the control box 33, a spring 35 is fixedly connected to the right end side surface of the rotating rod 24, one end of the spring 35 is fixedly connected to the inner wall of the control box 33, a silk thread 36 is wound around the side surface of the rotating rod 24 near the right end, and one end of the silk thread 36 is fixedly connected to the rotating rod 24, a wire outlet hole 34 is opened on the upper surface of the control box 33, the other end of the silk thread 36 passes through the wire outlet hole 34 and is fixedly connected to the first cover plate 4.

[0052] like Figure 8 As shown, two groups of screws 32 are provided on the upper surface of the rotating rod 24 , and the brush 25 and the scraper 26 are fixedly connected to the rotating rod 24 via the screws 32 .

[0053] When the first cover plate 4 is lowered, the tightened spring 35 drives the rotating rod 24 to rotate in the opposite direction, thereby automatically tightening the wire 36. When the rotating rod 24 rotates, the brush 25 and the scraper 26 are driven to clean the dust on the outer surface of the corresponding glass 3. In addition, the scraper 26 is made of refractory material.

[0054] When the brush 25 or the scraper 26 is damaged, the brush 25 or the scraper 26 can be disassembled by screwing the screw 32, which is simple, convenient and quick to operate.

[0055] like Figure 3 As shown, a fixing ring plate 28 is tightly set on one side of the glass 3, and the outer cylindrical surface of the fixing ring plate 28 is fixedly connected to the inner wall of the fire viewing tube 2. A fixing ring plate 29 is tightly set on the other side of the glass 3, and the outer surface of one side of the fixing ring plate 29 is fixedly connected with evenly distributed bolts 30. The fixing ring plate 29 and the fixing ring plate 28 are fixed by bolts 30 to clamp the glass 3.

[0056] like Figure 3 As shown, the adjacent surfaces of the abutting ring plate 29 and the fixing ring plate 28 are both fixedly connected with sealing gaskets 31 .

[0057] When the glass 3 is damaged, it is necessary to disassemble and replace the glass 3. By unscrewing the bolts 30, the fixing ring plate 28 and the clamping ring plate 29 are no longer fixed. First, remove the clamping ring plate 29, and then the glass 3 can be removed. After the glass 3 is replaced, the glass 3 can be fixed by clamping the fixing ring plate 28 and the clamping ring plate 29 and then tightening the bolts 30. The structure is simple and the operation is convenient. The installed sealing gasket 31 is soft in texture and can protect the glass 3 to prevent the fixing ring plate 28 and the clamping ring plate 29 from clamping the glass. In addition, the sealing gasket 31 is made of refractory material.

[0058] Working principle: when it is necessary to observe the situation inside the rotary kiln 1, first press the pressing rod 23 to drive the second clamping rod 21 to compress the second spring 22, and make the second clamping rod 21 and the first clamping rod 20 no longer clamped, and then rotate the first cover plate 4 upward. When the first cover plate 4 rotates upward, it will drive the connecting rod 10 to rotate together, and the second meshing teeth 12 on the connecting rod 10 will rotate with the first meshing teeth 9, thereby driving the first rotating shaft 8 to rotate. When the first rotating shaft 8 rotates, it will drive the second cover plate 5 and the connecting block 7 to rotate together, so that the first cover plate 4 and the second cover plate 5 rotate in opposite directions, and at the same time, the two ends of the fire viewing tube 2 are opened, and the operator can The internal situation of the rotary kiln 1 can be observed through the fire-viewing tube 2. When long-term observation is required, in order to avoid the operator's arm feeling numbness due to long-term control of the first cover plate 4, the operator can continuously rotate the first cover plate 4 so that the inclined surface of the connecting rod 10 presses against the fixing rod 16 and compresses the first spring 17. As the connecting rod 10 continues to rotate, the fixing hole 15 will finally correspond to the fixing rod 16, and then the compressed first spring 17 pushes the connecting rod 10 into the fixing hole 15 to fix the connecting rod 10, and at the same time, the first cover plate 4 and the second cover plate 5 are fixed. The operator can observe without touching the first cover plate 4.

[0059] After the observation, the paddle 18 is moved to drive the fixing rod 16 to compress the first spring 17, and then the fixing rod 16 is disengaged from the fixing hole 15, and the fixing rod 16 no longer fixes the connecting rod 10. The first cover plate 4 and the second cover plate 5 both rotate downward with gravity, and finally the two ends of the fire viewing tube 2 are closed. The concave arc-shaped structure design of the second cover plate 5 can improve the sealing of the fire viewing tube 2, avoid the problem of dust in the rotary kiln 1 adhering to the glass 3, and ensure the light transmittance of the glass 3. The covering of the fire viewing tube 2 by the first cover plate 4 can avoid the problem of dust in the air adhering to the glass 3, and ensure that the outer surfaces of both sides of the glass 3 are always kept clean.

[0060] When the first cover plate 4 is opened, the first cover plate 4 will pull the wire 36, and when the wire 36 is pulled, the rotating rod 24 will be driven to rotate and the spring 35 will be tightened. When the rotating rod 24 is rotated, the brush 25 and the scraper 26 will be driven to make a circular motion together. The brush 25 and the scraper 26 will clean the dust on the outer surface of the corresponding glass 3 together, so that the inside and outside of the glass 3 are cleaned together, thereby ensuring the light transmittance of the glass 3. When the first cover plate 4 is lowered, the tightened spring 35 drives the rotating rod 24 to rotate in the opposite direction, so as to automatically tighten the wire 36. When the rotating rod 24 reverses, it will also drive the brush 25 and the scraper 26 to clean the dust on the outer surface of the glass 3 again.

[0061] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fire-viewing hole for a rotary kiln that is easy to clean, comprising a rotary kiln (1), characterized in that: One end of the rotary kiln (1) is rotatably connected to a kiln head cover (37), a fire viewing tube (2) is fixedly connected to an outer surface of one side of the kiln head cover (37), and the fire viewing tube (2) is communicated with the kiln head cover (37), a glass (3) is arranged inside the fire viewing tube (2), and a control panel (6) is fixedly connected to the upper end of the fire viewing tube (2), and one end of the control panel (6) extends to the inside of the kiln head cover (37); A first cover plate (4) is provided on one side of the fire viewing tube (2); a connecting rod (10) is fixedly connected to the upper end of the first cover plate (4); one end of the connecting rod (10) is designed as a semi-arc structure; evenly distributed second meshing teeth (12) are fixedly connected to the semi-arc surface of the connecting rod (10); a second rotating shaft (11) is provided inside one end of the connecting rod (10) and penetrates through the inside; the second rotating shaft (11) is fixedly connected to the connecting rod (10); both ends of the second rotating shaft (11) are rotatably connected to the control panel (6); a first movable groove (13) is provided on the upper surface of the control panel (6) at a position corresponding to the connecting rod (10); The other end of the fire-viewing tube (2) is provided with a second cover plate (5), and the upper end of the second cover plate (5) is fixedly connected to two groups of connecting blocks (7), and a first rotating shaft (8) is provided inside the connecting block (7) and is fixedly connected to the connecting block (7), and the two ends of the first rotating shaft (8) are rotatably connected to the control panel (6), and a circle of first meshing teeth (9) is fixedly connected to the side surface of the first rotating shaft (8), and the first meshing teeth (9) are meshingly connected to the second meshing teeth (12), and a second movable groove (14) is provided at one end of the control panel (6) at a position corresponding to the connecting block (7).

2. The fire-viewing hole for a rotary kiln that is easy to clean according to claim 1, characterized in that: The glass (3) is made of high temperature resistant material.

3. The fire-viewing hole for a rotary kiln that is easy to clean according to claim 1, characterized in that: The upper end of the connecting rod (10) is designed to be an inclined surface. A fixing rod (16) is arranged above the connecting rod (10). One end of the fixing rod (16) extends to the inside of the control panel (6) and is fixedly connected to a first spring (17). One end of the first spring (17) is fixedly connected to the control panel (6). The outer cylindrical surface of the fixing rod (16) is slidably connected to the control panel (6). One end of the fixing rod (16) is designed to be an arc-shaped structure. A fixing hole (15) is provided through the inside of the connecting rod (10) near one end.

4. The fire-viewing hole for a rotary kiln that is easy to clean according to claim 3, characterized in that: A paddle (18) is fixedly connected to one end of the upper surface of the fixing rod (16), a slide groove (19) is provided on the upper surface of the control panel (6) at a position corresponding to the paddle (18), and the upper end of the paddle (18) passes through the slide groove (19) and extends to the outside.

5. The fire-viewing hole for a rotary kiln that is easy to clean according to claim 1, characterized in that: A first clamping rod (20) is fixedly connected to the side surface of the lower end of the first cover plate (4), a second clamping rod (21) is arranged above the first clamping rod (20), one end of each of the first clamping rod (20) and the second clamping rod (21) is fixedly connected to a triangular block, the first clamping rod (20) and the second clamping rod (21) are clamped and connected via the triangular block, a second spring (22) is fixedly connected to the upper surface of the second clamping rod (21), the upper end of the second spring (22) is fixedly connected to the fire viewing tube (2), a pressing rod (23) is fixedly connected to one end of the lower surface of the second clamping rod (21), the lower end of the pressing rod (23) penetrates the fire viewing tube (2) and extends to the outside, and the side surface of the pressing rod (23) is slidably connected to the fire viewing tube (2).

6. The fire viewing hole for a rotary kiln that is easy to clean according to claim 1, characterized in that: A rotating rod (24) is provided through the center of the interior of the glass (3); the outer cylindrical surface of the rotating rod (24) is rotatably connected to the glass (3); a brush (25) is fixedly connected to the lower surface of the rotating rod (24) near the glass (3); a scraper (26) is fixedly connected to one end of the lower surface of the rotating rod (24); the scraper (26) and the brush (25) are oriented in the same direction.

7. The fire-viewing hole for a rotary kiln that is easy to clean according to claim 6, characterized in that: A support rod (27) is fixedly connected to the inner wall of the lower end of the fire-viewing tube (2), and a control box (33) is fixedly connected to the upper side surface of the support rod (27). The right end of the rotating rod (24) extends into the interior of the control box (33) and is rotatably connected to the control box (33). A spring (35) is fixedly connected to the right side surface of the rotating rod (24), and one end of the spring (35) is fixedly connected to the inner wall of the control box (33). A silk thread (36) is wound around the side surface of the rotating rod (24) near the right end, and one end of the silk thread (36) is fixedly connected to the rotating rod (24). A wire outlet hole (34) is opened on the upper surface of the control box (33), and the other end of the silk thread (36) passes through the wire outlet hole (34) and is fixedly connected to the first cover plate (4).

8. The fire-viewing hole for a rotary kiln that is easy to clean according to claim 6, characterized in that: Two groups of screws (32) are provided on the upper surface of the rotating rod (24), and the brush (25) and the scraper (26) are fixedly connected to the rotating rod (24) via the screws (32).

9. The fire viewing hole for a rotary kiln that is easy to clean according to claim 6, characterized in that: A fixing ring plate (28) is tightly disposed on one side of the glass (3), the outer circumferential surface of the fixing ring plate (28) being fixedly connected to the inner wall of the fire-viewing tube (2), and a fixing ring plate (29) is tightly disposed on the other side of the glass (3), the outer surface of one side of the fixing ring plate (29) being fixedly connected to evenly distributed bolts (30), and the fixing ring plate (29) and the fixing ring plate (28) are fixed by the bolts (30) to clamp the glass (3).

10. The fire-viewing hole for a rotary kiln that is easy to clean according to claim 9, characterized in that: The adjacent surfaces of the abutting ring plate (29) and the fixing ring plate (28) are both fixedly connected with sealing pads (31).

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