Uniform air distribution combustion device of calcining kiln

Abstract

The utility model relates to the technical field of calcining kilns, and discloses a calcining kiln uniform air distribution combustion device which comprises a kiln head cover, a kiln cylinder is fixedly connected to the kiln head cover, an air inlet pipe is fixedly connected to the side, away from the kiln cylinder, of a kiln tail, and a driving motor is fixedly installed on the air inlet pipe. The output end of the driving motor is fixedly connected with a gear, the gear is connected with a gear ring in an engaged mode, the connecting ring is fixedly connected with a limiting rod, the air inlet pipe is rotationally connected with a rotating rod in a penetrating mode, and the rotating rod is fixedly connected with a baffle. During use, the driving motor is started, the rotation angle of the baffle is adjusted through the arrangement of the gear, the gear ring, the connecting ring and the limiting rod, and the size of a gap between the baffle and the inner wall of the air inlet pipe is changed, so that the air volume in the air inlet pipe is adjusted, the combustion efficiency is improved, and the air volume is adjusted according to actual combustion requirements; unnecessary energy consumption is effectively reduced, and energy conservation and emission reduction are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of calcining kilns, in particular to a uniform air distribution combustion device for a calcining kiln. Background Art

[0002] As an important industrial equipment, calcining kiln is widely used in ceramics, metallurgy, building materials and chemical industries. Its core function is to treat raw materials through high temperature to cause physical or chemical changes in them to achieve the desired finished product properties. During the calcining process, the complete combustion of the fuel and the uniform distribution of temperature in the kiln are directly related to product quality and production efficiency.

[0003] However, during use, the existing calcining kiln combustion device is difficult to flexibly adjust the air intake according to calcining needs, resulting in unnecessary waste of energy. In addition, the temperature of the air blown in by the fan is lower than the temperature inside the kiln, which easily affects the uniformity of the temperature inside the kiln and thus affects the consistency of product quality. In addition, the fan is fixed with bolts, which are prone to bolt rust during long-term use, making the maintenance and replacement of the fan difficult. Therefore, a calcining kiln uniform air distribution combustion device is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a calcining kiln uniform air distribution combustion device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a calcining kiln uniform air distribution combustion device, including a kiln head hood, the kiln head hood is fixedly connected to the kiln barrel, the kiln barrel is fixedly connected to the kiln tail, the kiln tail is fixedly connected to the side away from the kiln barrel with an air inlet pipe, a driving motor is fixedly installed on the air inlet pipe, the output end of the driving motor is fixedly connected to a gear, the gear is meshed with a gear ring, the gear ring is fixedly connected to a connecting ring, the connecting ring is rotatably connected to the air inlet pipe, a limiting rod is fixedly connected to the connecting ring, a rotating rod is rotatably connected to the air inlet pipe, one end of the rotating rod is fixedly connected to a connecting plate, a limiting slot is provided on the connecting plate, the limiting rod is slidably connected in the limiting slot, and a baffle is fixedly connected to the rotating rod.

[0006] As a further description of the above technical solution:

[0007] A fan is fixedly installed on the air inlet pipe, the output end of the fan is fixedly connected to a connecting pipe, the connecting pipe is fixedly connected to a locking block, the air inlet pipe is fixedly connected to a fixing frame, a locking rod is slidably connected in the fixing frame, one end of the locking rod is fixedly connected to a handle, a fixing plate is fixedly connected to the locking rod, a spring is sleeved on the locking rod, two ends of the spring are respectively fixedly connected to the fixing plate and the fixing frame, the other end of the locking rod is fixedly connected to a locking head, the locking head can be fitted into the locking block, and a sealing ring is provided on the air inlet pipe near the connecting pipe.

[0008] As a further description of the above technical solution:

[0009] A fixed pipe is fixedly connected to one end of the kiln cylinder near the kiln tail. A heating wire is provided on the kiln cylinder. A cavity is provided between the fixed pipe and the kiln cylinder, and the heating wire is located in the cavity.

[0010] As a further description of the above technical solution:

[0011] The limiting rods are provided in six groups and are evenly distributed on the connecting ring. The rotating rods and baffles are provided in six groups and are evenly distributed on the air inlet pipe. The baffles rotate in the air inlet pipe.

[0012] As a further description of the above technical solution:

[0013] The fan is located on one end of the air inlet pipe away from the kiln tail, and the fixing frame is located on one side of the air inlet pipe close to the fan. There are two groups of fixing frames and they are symmetrically distributed on the air inlet pipe.

[0014] As a further description of the above technical solution:

[0015] The handles are provided in two groups and are located on the outside of the fixing frame, and the fixing plates are provided in two groups and are slid in the fixing frame.

[0016] As a further description of the above technical solution:

[0017] The lock head slides in the air inlet pipe, and the shape of the lock head is wedge-shaped.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, when the uniform air distribution combustion device of the calcining kiln is used, the driving motor is started, and the rotation angle of the baffle is adjusted through the setting of the gear, the gear ring, the connecting ring and the limit rod, thereby changing the size of the gap between the baffle and the inner wall of the air inlet pipe, thereby adjusting the air volume in the air inlet pipe, avoiding local overheating or overcooling caused by uneven air volume, and improving combustion efficiency. At the same time, the air volume is adjusted according to actual combustion needs, effectively reducing unnecessary energy consumption, which is conducive to energy conservation and emission reduction.

[0020] 2. In the utility model, when the calcining kiln uniform air distribution combustion device is used, the lock is moved by pulling the handle, and the lock is reset by utilizing the elastic force of the spring, thereby realizing the separation and installation of the fan and the air inlet pipe, facilitating the inspection and replacement of the fan and connecting parts, shortening the downtime for maintenance, improving maintenance efficiency, and at the same time enhancing the overall reliability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a uniform air distribution combustion device for a calcining kiln proposed in the utility model;

[0022] Figure 2 This is a partial structural section of a calcining kiln uniform air distribution combustion device proposed in this utility model Figure 1 ;

[0023] Figure 3 This is a partial structural diagram of a uniform air distribution combustion device for a calcining kiln proposed in the utility model;

[0024] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 5 This is a partial structural section of a calcining kiln uniform air distribution combustion device proposed in this utility model Figure 2 .

[0026] Legend:

[0027] 1. Kiln head cover; 2. Kiln tube; 3. Kiln tail; 4. Air inlet pipe; 5. Drive motor; 6. Gear; 7. Ring gear; 8. Connecting ring; 9. Limit rod; 10. Rotating rod; 11. Connecting plate; 12. Limit groove; 13. Baffle; 14. Fan; 15. Connecting pipe; 16. Lock block; 17. Fixed bracket; 18. Lock rod; 19. Handle; 20. Fixed plate; 21. Spring; 22. Lock head; 23. Sealing ring; 24. Fixed pipe; 25. Heating wire. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Reference Figure 1-Figure 5The utility model provides an embodiment: a calcining kiln uniform air distribution combustion device, including a kiln head cover 1, the kiln head cover 1 is fixedly connected to a kiln barrel 2, the kiln barrel 2 is fixedly connected to a kiln tail 3, the kiln tail 3 is fixedly connected to an air inlet pipe 4 on the side away from the kiln barrel 2, the air inlet pipe 4 is fixedly installed with a driving motor 5, the output end of the driving motor 5 is fixedly connected to a gear 6, the gear 6 is meshed with a gear ring 7, the gear ring 7 is fixedly connected to a connecting ring 8, the connecting ring 8 is rotatably connected to the air inlet pipe 4, the connecting ring 8 is fixedly connected to a limiting rod 9, the air inlet pipe 4 is rotatably connected with a rotating rod 10, one end of the rotating rod 10 is fixedly connected to a connecting plate 11, and a limiting groove 12 is provided on the connecting plate 11. 9 is slidably connected in the limit groove 12, and a baffle 13 is fixedly connected to the rotating rod 10. The driving motor 5 is started, and the driving motor 5 drives the ring gear 7 and the connecting ring 8 to rotate through the gear 6. The connecting ring 8 drives the limit rod 9 to rotate. At the same time, the limit rod 9 slides in the limit groove 12, and then drives the rotating rod 10 and the baffle 13 to rotate through the connecting plate 11. By adjusting the rotation angle of the baffle 13, the size of the gap between the baffle 13 and the inner wall of the air inlet pipe 4 can be changed, thereby adjusting the air volume in the air inlet pipe 4, avoiding local overheating or overcooling caused by uneven air volume, and improving combustion efficiency. At the same time, the air volume is adjusted according to actual combustion needs, effectively reducing unnecessary energy consumption, which is beneficial to energy conservation and emission reduction.

[0030] In addition, a fan 14 is fixedly installed on the air inlet pipe 4, and the output end of the fan 14 is fixedly connected to a connecting pipe 15, and a locking block 16 is fixedly connected to the connecting pipe 15. The air inlet pipe 4 is fixedly connected to a fixing frame 17, and a locking rod 18 is slidably connected in the fixing frame 17. One end of the locking rod 18 is fixedly connected to a handle 19, and the locking rod 18 is fixedly connected to a fixing plate 20. A spring 21 is sleeved on the locking rod 18, and both ends of the spring 21 are fixedly connected to the fixing plate 20 and the fixing frame 17 respectively. The other end of the locking rod 18 is fixedly connected to a locking head 22, and the locking head 22 can fit into the locking block 16. A sealing ring 23 is provided on the end of the air inlet pipe 4 near the connecting pipe 15, and a fixing pipe 24 is fixedly connected to the end of the kiln barrel 2 near the kiln tail 3. A heating wire 25 is provided on the kiln barrel 2. A cavity is provided between the fixing pipe 24 and the kiln barrel 2, and the heating wire 25 is located in the cavity. The limit rod 9 is provided with six groups and is evenly distributed on the connecting pipe. On the connecting ring 8, there are six groups of rotating rods 10 and baffles 13 and they are evenly distributed on the air inlet pipe 4. The baffle 13 rotates in the air inlet pipe 4. The fan 14 is located on the end of the air inlet pipe 4 away from the kiln tail 3. The fixing frame 17 is located on the side of the air inlet pipe 4 close to the fan 14. There are two groups of fixing frames 17 and they are symmetrically distributed on the air inlet pipe 4. There are two groups of handles 19 and they are located on the outside of the fixing frames 17. There are two groups of fixing plates 20 and they slide in the fixing frames 17. The lock 22 slides in the air inlet pipe 4. The lock 22 is wedge-shaped. The lock 22 is moved by pulling the handle 19, and the elastic force of the spring 21 is used to reset the lock 22, thereby realizing the separation and installation of the fan 14 and the air inlet pipe 4, facilitating the inspection and replacement of the fan 14 and the connecting parts, shortening the downtime for maintenance, improving the maintenance efficiency, and at the same time improving the overall reliability and service life of the equipment.

[0031] Working principle: When using the calcining kiln uniform air distribution and combustion device, the operator starts the fan 14, and the fan 14 blows out air through the air inlet pipe 4 and the kiln tail 3 into the kiln tube 2. When the wind passes through one end of the kiln tube 2 provided with a fixed tube 24, the heating wire 25 is started, and the heating wire 25 is used to generate heat, thereby heating the air in the kiln tube 2 to increase its temperature, thereby preventing cold air from entering the kiln tube 2 and affecting the uniformity of the temperature in the kiln. When the air volume needs to be adjusted, the drive motor 5 is started, and the drive motor 5 drives the gear ring 7 and the connecting ring 8 to rotate through the gear 6, and the connecting ring 8 drives the limit rod 9 to rotate. At the same time, the limit rod 9 slides in the limit groove 12, and then drives the rotating rod 10 and the baffle 13 to rotate through the connecting plate 11. By adjusting the rotation angle of the baffle 13, the baffle 13 and the air in the air inlet pipe 4 can be changed. When the fan 14 needs to be repaired or replaced, the two sets of handles 19 can be pulled, and the handles 19 drive the lock head 22 to move through the locking rod 18, so that the lock head 22 no longer jams the locking block 16, so that the fan 14 and the connecting pipe 15 can be removed from the air inlet pipe 4 for maintenance. When the maintenance is completed, the connecting pipe 15 is reinserted into the air inlet pipe 4. When the locking block 16 contacts the oblique end of the locking head 22, the locking block 16 will squeeze the oblique end of the locking head 22. At this time, the locking head 22 will also squeeze the spring 21. When the locking block 16 contacts the flat end of the locking head 22, under the elastic force of the spring 21, the lock head 22 will be reset, thereby jamming the locking block 16, thereby locking the connecting pipe 15, thereby fixing the fan 14 on the air inlet pipe 4, and using the sealing ring 23 to prevent wind leakage, which is easy to operate.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A calcining kiln uniform air distribution combustion device, comprising a kiln head cover (1), characterized in that: The kiln head cover (1) is fixedly connected to a kiln barrel (2), the kiln tail (3) is fixedly connected to the kiln barrel (2), the kiln tail (3) is fixedly connected to an air inlet pipe (4) on a side away from the kiln barrel (2), the air inlet pipe (4) is fixedly mounted with a driving motor (5), the output end of the driving motor (5) is fixedly connected to a gear (6), the gear (6) is meshed with a gear ring (7), the gear ring (7) is fixedly connected to a connecting ring (8), the connecting ring (8) is rotatably connected to the air inlet pipe (4), a limiting rod (9) is fixedly connected to the connecting ring (8), the air inlet pipe (4) is rotatably connected to a rotating rod (10), one end of the rotating rod (10) is fixedly connected to a connecting plate (11), a limiting groove (12) is provided on the connecting plate (11), the limiting rod (9) is slidably connected to the limiting groove (12), and a baffle (13) is fixedly connected to the rotating rod (10).

2. The uniform air distribution combustion device for a calcining kiln according to claim 1, characterized in that: The air inlet pipe (4) is fixedly mounted with a fan (14), the output end of the fan (14) is fixedly connected with a connecting pipe (15), the connecting pipe (15) is fixedly connected with a locking block (16), the air inlet pipe (4) is fixedly connected with a fixing frame (17), a locking rod (18) is slidably connected in the fixing frame (17), one end of the locking rod (18) is fixedly connected with a handle (19), the locking rod (18) is fixedly connected with a fixing plate (20), a spring (21) is sleeved on the locking rod (18), the two ends of the spring (21) are respectively fixedly connected to the fixing plate (20) and the fixing frame (17), the other end of the locking rod (18) is fixedly connected with a locking head (22), the locking head (22) can be fitted with the locking block (16), and a sealing ring (23) is provided on the air inlet pipe (4) at one end close to the connecting pipe (15).

3. The uniform air distribution combustion device for a calcining kiln according to claim 2, characterized in that: A fixed pipe (24) is fixedly connected to one end of the kiln barrel (2) near the kiln tail (3), a heating wire (25) is provided on the kiln barrel (2), a cavity is provided between the fixed pipe (24) and the kiln barrel (2), and the heating wire (25) is located in the cavity.

4. The uniform air distribution combustion device for a calcining kiln according to claim 3, characterized in that: The limiting rods (9) are provided in six groups and are evenly distributed on the connecting ring (8); the rotating rods (10) and the baffles (13) are provided in six groups and are evenly distributed on the air inlet pipe (4); and the baffles (13) rotate in the air inlet pipe (4).

5. The uniform air distribution combustion device for a calcining kiln according to claim 4, characterized in that: The fan (14) is located on one end of the air inlet pipe (4) away from the kiln tail (3), and the fixing frame (17) is located on a side of the air inlet pipe (4) close to the fan (14). Two groups of the fixing frames (17) are provided and symmetrically distributed on the air inlet pipe (4).

6. The uniform air distribution combustion device for a calcining kiln according to claim 5, characterized in that: The handles (19) are provided in two groups and are located outside the fixing frame (17); the fixing plates (20) are provided in two groups and slide in the fixing frame (17).

7. The uniform air distribution combustion device for a calcining kiln according to claim 6, characterized in that: The lock head (22) slides in the air inlet pipe (4), and the lock head (22) is in a wedge shape.

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