Convenient-to-install hot air isolation air door for coal mill

Abstract

The utility model discloses a coal mill hot air isolation air door convenient to install, which comprises an air door main body, the front end and the rear end of the air door main body are both fixedly connected with first fixing blocks, the front end and the rear end of each first fixing block are both provided with positioning holes, the rear end of each first fixing block is fixedly connected with a first convex block, and the first convex block is fixedly connected with a second convex block. And a first protruding block is connected to the rear side of the first fixing block in a clamped mode, a sealing block is connected to the first protruding block in a clamped mode, a second protruding block is connected to the rear side of the sealing block in a clamped mode, a second fixing block is fixedly connected to the rear side of the second protruding block, an air outlet pipe is fixedly connected to the rear end of the second fixing block, and a bolt is arranged in the positioning hole. The rear end of the first fixing block is fixedly connected with the first protruding block, an additional supporting point is provided through the structural design, the stability of the whole air door is enhanced, the first protruding block is connected with the sealing block in a clamped mode, the second protruding block is connected with the rear side of the sealing block in a clamped mode, multiple sealing is formed through the continuous clamping connection design, leakage of hot air is effectively prevented, and the service life of the air door is prolonged. And the sealing performance of the system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mill auxiliary equipment, in particular to a hot air isolation damper for a coal mill which is easy to install. Background Art

[0002] Coal mills are common industrial equipment used to grind coal into a fine powder for more efficient combustion in boilers. The efficiency and stability of coal mills are crucial to the entire industrial production process. However, the grinding process generates large amounts of dust and heat, which can damage the equipment and pose a health threat to operators. To address these issues, hot air isolation dampers for coal mills have emerged. The main function of this damper is to control the temperature and pressure inside the coal mill by conveying hot air during operation, while isolating the internal environment from the external environment, ensuring a stable and safe coal grinding process. The hot air isolation damper must be coordinated with the hot air delivery system to ensure that hot air is evenly and stably delivered to the coal mill. This involves multiple steps, including the generation, delivery, and distribution of hot air.

[0003] In actual use, the absence of a clamping component may result in insufficiently close contact between the sealing block and the damper body, thereby reducing the sealing performance and increasing the risk of air leakage. Without a clamping component, other methods (such as screws, welding, etc.) may be required to fix the sealing block, which may increase the complexity and difficulty of installation. If the sealing block is not fixed by a clamping component, it may take more time and effort to replace or maintain the sealing block because it may involve disassembling more parts. The clamping component can usually provide a better fixing effect. If the clamping component is not used, the sealing block may become loose due to vibration or thermal expansion, affecting the durability and reliability of the damper. Utility Model Content

[0004] The purpose of the present utility model is to provide a hot air isolation damper for a coal mill that is easy to install. The first protrusion is fixedly connected to the rear end of the first fixed block. This structural design provides an additional support point, thereby enhancing the stability of the entire damper. The first protrusion is clamped to the sealing block, and the rear side of the sealing block is clamped to the second protrusion. This continuous clamping design forms multiple seals, effectively preventing the leakage of hot air and improving the sealing performance of the system. The rear end of the second fixed block is fixedly connected to the air outlet pipe. The second fixed block can be easily fixed in an appropriate position through the cooperation of bolts and nuts, thereby simplifying the installation process. The bolt passes through the second fixed block, and the outer ring of the bolt is threadedly connected to the nut. This design allows the position of the second fixed block to be fine-tuned to adapt to different installation requirements.

[0005] To achieve the above-mentioned object, a hot air isolation damper for a coal mill that is easy to install is provided, comprising: a damper body, wherein the front and rear ends of the damper body are fixedly connected to a first fixing block, the front and rear ends of the first fixing block are provided with positioning holes, the rear end of the first fixing block is fixedly connected to a first protrusion, the first protrusion is clamped with a sealing block, the rear side of the sealing block is clamped with a second protrusion, the rear side of the second protrusion is fixedly connected to a second fixing block, the rear end of the second fixing block is fixedly connected to an air outlet pipe, a bolt is provided inside the positioning hole, and the bolt and the second fixing block pass through, and the outer ring of the bolt is threadedly connected to a nut;

[0006] The inner ring of the damper body is fixedly connected with a third fixing block.

[0007] According to the hot air isolation damper for coal mill that is easy to install, the outer ring of the damper body is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating shaft, and the rotating shaft and the damper body pass through, and the outer ring of the rotating shaft is fixedly connected to an air guide plate.

[0008] According to the hot air insulating damper for a coal mill that is easy to install, the rear end of the air outlet pipe is penetrated by the coal mill, and the air outlet pipe and the coal mill are matched.

[0009] According to the hot air insulating damper for a coal mill that is easy to install, the number of the first fixing blocks is two, the number of the positioning holes is eight, and the first fixing blocks and the positioning holes match each other.

[0010] According to the hot air insulating damper for a coal mill that is easy to install, the cross section of the sealing block is circular, and the sealing block cooperates with the first protrusion and the second protrusion.

[0011] According to the hot air insulating damper for a coal mill that is easy to install, the bolt matches the inside of the positioning hole, and the outer ring of the bolt matches the nut.

[0012] According to the hot air insulating damper for a coal mill that is easy to install, the number of the air guide plates is two, and the air guide plates cooperate with the third fixing block.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is provided with a first protrusion, a second protrusion, a second fixing block, an air outlet pipe, a bolt and a nut, and the first protrusion is fixedly connected through the rear end of the first fixing block. This structural design provides an additional support point, thereby enhancing the stability of the entire air door. The first protrusion is clamped with the sealing block, and the rear side of the sealing block is clamped with the second protrusion. This continuous clamping design forms multiple seals, effectively preventing the leakage of hot air and improving the sealing performance of the system. The rear end of the second fixing block is fixedly connected with the air outlet pipe. Through the cooperation of the bolt and the nut, the second fixing block can be conveniently fixed in the appropriate position, simplifying the installation process. The bolt passes through the second fixing block, and the outer ring of the bolt is threadedly connected with the nut. This design allows the position of the second fixing block to be fine-tuned to adapt to different installation requirements.

[0015] 2. The utility model sets a third fixed block, and provides additional support for the damper body through the fixed connection of the third fixed block, thereby enhancing the stability of the entire damper structure, especially when subjected to hot air pressure or mechanical vibration. The position of the third fixed block provides a stable installation platform for the motor, ensuring that the motor can be firmly installed on the damper body, reducing failures caused by improper installation. The output end of the motor is connected to the third fixed block through a rotating shaft. This design can reduce energy loss during the transmission process and improve the efficiency of the motor driving the damper to open and close.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a three-dimensional view of a hot air isolation damper for a coal mill that is easy to install according to the utility model;

[0019] Figure 2 This is a front view of a hot air isolation damper for a coal mill that is easy to install according to the utility model;

[0020] Figure 3 This is a cross-sectional perspective view of a hot air isolation damper for a coal mill that is easy to install according to the utility model;

[0021] Figure 4 For this utility model Figure 3 A magnified view of the structure at center A;

[0022] Figure 5 For this utility model Figure 3 Enlarged view of the structure at point B in the middle.

[0023] In the figure: 1. damper body; 2. first fixing block; 3. positioning hole; 4. coal mill; 5. bolt; 6. nut; 7. second fixing block; 8. air outlet pipe; 9. first protrusion; 10. second protrusion; 11. sealing block; 12. third fixing block; 13. motor; 14. rotating shaft; 15. air guide plate. DETAILED DESCRIPTION

[0024] 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 utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides a technical solution: a hot air isolation damper for a coal mill that is easy to install, comprising: a damper main body 1, the front and rear ends of the damper main body 1 are fixedly connected with a first fixing block 2, the first fixing block 2 plays the role of fixing the damper main body 1 to ensure its stable installation, the front and rear ends of the first fixing block 2 are provided with positioning holes 3, the positioning holes 3 are used for the passage of bolts 5, and the damper main body 1 and the first fixing block 2 are accurately positioned, the rear end of the first fixing block 2 is fixedly connected with a first protrusion 9, the first protrusion 9 is clamped with a sealing block 11, and plays the role of fixing the sealing block 11, the rear side of the sealing block 11 is clamped with a second protrusion 10, and the second protrusion 10 is clamped with a second protrusion 10. The rear side of the block 10 is fixedly connected to the second fixed block 7, and the rear end of the second fixed block 7 is fixedly connected to the air outlet pipe 8, which is used to transport the hot air to the coal mill 4 to realize the hot air transportation function. A bolt 5 is provided inside the positioning hole 3, and the bolt 5 passes through the first fixed block 2 and the second fixed block 7. The outer ring of the bolt 5 is threadedly connected to a nut 6, and the nut 6 is used to fix the bolt 5 to ensure a tight connection between the damper body 1 and the first fixed block 2 and the second fixed block 7. The inner ring of the damper body 1 is fixedly connected to the third fixed block 12. The fixed connection of the third fixed block 12 provides additional support for the damper body 1, thereby enhancing the stability of the entire damper structure.

[0026] The third fixing block 12 is used to fix the motor 13. The output end of the motor 13 is fixedly connected to the rotating shaft 14. The rotating shaft 14 passes through the damper body 1 to realize the driving of the damper body 1 by the motor 13. The outer ring of the rotating shaft 14 is fixedly connected to the wind guide plate 15. The wind guide plate 15 is used to guide the flow direction of the hot air and optimize the flow effect of the hot air. The rear end of the air outlet pipe 8 passes through the coal mill 4. The air outlet pipe 8 and the coal mill 4 cooperate to realize the direct delivery of hot air. The number of the first fixing blocks 2 is two, and the number of the positioning holes 3 is eight. The first fixing block 2 cooperates with the positioning holes 3 to ensure the stable installation of the damper body 1. The cross-section of the sealing block 11 is circular, and cooperates with the first protrusion 9 and the second protrusion 10 to achieve a good sealing effect. The bolt 5 cooperates with the inside of the positioning hole 3 to ensure the stable fixation of the bolt 5. The outer ring of the bolt 5 cooperates with the nut 6 to realize the tightening of the bolt 5. The number of the wind guide plates 15 is two, which cooperates with the third fixing block 12 to realize uniform distribution of hot air.

[0027] Working principle: First, fix the two first fixing blocks 2 at the front and rear ends of the damper body 1 respectively. Make sure that the first fixing block 2 is positioned correctly so that subsequent components can be accurately installed. Insert the bolt 5 through the positioning hole 3 on the first fixing block 2 and cooperate with the nut 6 through the internal thread to fix the first fixing block 2 and the damper body 1. Fix the first protrusion 9 to the rear end of the first fixing block 2 and ensure that the sealing block 11 can be snapped onto the first protrusion 9. Snap the second protrusion 10 onto the rear side of the sealing block 11, and then fix the second fixing block 7 to the front side of the second protrusion 10. The rear end of the second protrusion 10 is fixed with the air outlet pipe 8 to ensure the air outlet. The pipe 8 matches the interface of the coal mill 4, and the third fixing block 12 is fixed on the inner ring of the damper body 1 to prepare for the installation of the motor 13. The motor 13 is fixed on the third fixing block 12, and the output end of the motor is connected to the rotating shaft 14, ensuring that the rotating shaft 14 passes through the damper body 1. Two air guide plates 15 are installed on the outer ring of the rotating shaft 14, ensuring that they cooperate with the third fixing block 12 to guide the flow of hot air. After all components are installed, check the sealing between the sealing block 11 and the first and second protrusions 9 and 10 to ensure that there is no air leakage.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A hot air isolation damper for a coal mill that is easy to install, comprising: A damper body (1), wherein both front and rear ends of the damper body (1) are fixedly connected to a first fixing block (2), and both front and rear ends of the first fixing block (2) are provided with positioning holes (3), characterized in that: a rear end of the first fixing block (2) is fixedly connected to a first protrusion (9), the first protrusion (9) is clamped to a sealing block (11), a rear side of the sealing block (11) is clamped to a second protrusion (10), a rear side of the second protrusion (10) is fixedly connected to a second fixing block (7), a rear end of the second fixing block (7) is fixedly connected to an air outlet pipe (8), a bolt (5) is provided inside the positioning hole (3), and the bolt (5) and the second fixing block (7) pass through, and an outer ring of the bolt (5) is threadedly connected to a nut (6); The inner ring of the damper body (1) is fixedly connected to a third fixing block (12).

2. The hot air shielding damper for a coal mill that is easy to install as claimed in claim 1, characterized in that: The outer ring of the damper body (1) is fixedly connected to a motor (13), the output end of the motor (13) is fixedly connected to a rotating shaft (14), and the rotating shaft (14) and the damper body (1) pass through each other, and the outer ring of the rotating shaft (14) is fixedly connected to an air guide plate (15).

3. The hot air shielding damper for a coal mill that is easy to install as claimed in claim 1, characterized in that: The rear end of the air outlet pipe (8) is penetrated by a coal mill (4), and the air outlet pipe (8) and the coal mill (4) are matched.

4. The hot air shielding damper for a coal mill that is easy to install as claimed in claim 1, characterized in that: The number of the first fixing blocks (2) is two, the number of the positioning holes (3) is eight, and the first fixing blocks (2) and the positioning holes (3) match each other.

5. The hot air shielding damper for a coal mill that is easy to install as claimed in claim 1, characterized in that: The cross section of the sealing block (11) is circular, and the sealing block (11) cooperates with the first convex block (9) and the second convex block (10).

6. The hot air shielding damper for a coal mill that is easy to install as claimed in claim 1, characterized in that: The bolt (5) matches the inside of the positioning hole (3), and the outer ring of the bolt (5) matches the nut (6).

7. The hot air shielding damper for a coal mill that is easy to install as claimed in claim 2, characterized in that: There are two wind guide plates (15), and the wind guide plates (15) match the third fixing block (12).

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