An air intake adjustable coal powder conveying fan

Abstract

The utility model belongs to the technical field of coal powder conveying fan, concretely relates to an adjustable air intake quantity's coal powder conveying fan, including frame, be provided with fan on the frame, the front end fixed connection of fan has the air inlet pipe, be provided with adjusting mechanism on the air inlet pipe, the outside swing joint of air inlet pipe has the filter screen, the inside fixed connection of air inlet pipe has the supporting plate, be provided with dust removal mechanism on the supporting plate. The scheme drives the movable plate rotation through the swivel ring, makes the movable plate and the sealing plate between the dislocation, further makes the air intake efficiency of device change, and through the spring action on the baffle, makes the plug rod can move and the swivel ring contact, further makes the air intake quantity adjust after convenient limit.

Description

Technical Field

[0001] This solution belongs to the technical field of pulverized coal conveying fans, specifically involving a pulverized coal conveying fan with adjustable air intake. Background Technology

[0002] Utility model patent CN205473397U discloses a pulverized coal injection and conveying system for a double-chamber lime kiln, including a pulverized coal silo, a blower, a pulverized coal distributor, a pulverized coal conveying pipe, and an injection tank. The system is equipped with a gate valve, a dome valve, and a vertical metering valve. The pulverized coal silo is connected to the injection tank via the gate valve and the dome valve. The injection tank has two discharge ports at its lower part, which are connected to the pulverized coal conveying pipe via the vertical metering valve. The blower is also connected to the pulverized coal conveying pipe. The pulverized coal conveying pipe is divided into two branches, each connected to the pulverized coal distributor and equipped with a branch dome valve. The system includes a return pulverized coal pipeline and an exhaust pipe. The pulverized coal conveying pipe is connected to the pulverized coal silo via the return pulverized coal pipeline, and the injection tank is connected to the pulverized coal silo via the exhaust pipe. This utility model combines the pulverized coal silo and the injection tank, using compressed air from the blower as power for conveying, thereby improving the pulverized coal injection and conveying capacity and the combustion efficiency of the pulverized coal, optimizing the conveying process, and reducing power consumption.

[0003] However, the device has certain shortcomings in use. It is not easy to adjust the air intake volume. Also, during the air intake process, large particles are sucked into the device, which can damage the fan. Utility Model Content

[0004] The purpose of this solution is to provide a coal powder conveying fan with adjustable air intake to solve the problems of inconvenient air intake adjustment in the device, and the fan drawing in large particles into the device during the air intake process, which can damage the fan.

[0005] To achieve the above objectives, this solution provides a coal powder conveying fan with adjustable air intake, including a frame, a fan mounted on the frame, an air intake pipe fixedly connected to the front end of the fan, an adjustment mechanism mounted on the air intake pipe, a filter screen movably connected to the outside of the air intake pipe, a support plate fixedly connected to the inside of the air intake pipe, and a dust removal mechanism mounted on the support plate.

[0006] The principle of this solution is as follows: During use, the device is adjusted according to the required air intake volume. The baffle ring is manually moved towards the fan. The movement of the baffle ring compresses the spring, causing the baffle ring to move the insertion rod, disengaging the insertion rod from the rotating ring. The rotating ring is then manually rotated, causing the sliding pin to move. The sliding pin then rotates the movable plate, causing it to shift from the movable plate to the sealing plate. This shift changes the air intake efficiency of the device. The spring acting on the baffle ring allows the insertion rod to move and contact the rotating ring, facilitating the limiting of the air intake volume after adjustment. During air intake, the airflow enters the fan and filters large particles entering the intake pipe through the filter screen. The airflow drives the fan blades to rotate, which in turn drives the support shaft to rotate. The support shaft drives the square rod to rotate, which in turn drives the filter screen to rotate. The collision between the inclined block and the baffle block causes the filter screen to vibrate, making it easier to clean large particles and thus stabilizing the air intake efficiency of the device.

[0007] The technical effect of this solution is that the rotating ring drives the movable plate to rotate, causing the movable plate and the sealing plate to be misaligned, thereby changing the air intake efficiency of the device. Furthermore, the spring acts on the retaining ring, allowing the insertion rod to move and contact the rotating ring, thus making it easier to limit the air intake after adjustment.

[0008] Large particles entering the air intake pipe are filtered by the filter screen. At the same time, the airflow drives the fan blades to rotate, which in turn drives the support shaft to rotate. This causes the square rod to drive the filter screen to rotate. Furthermore, the collision of the inclined block and the baffle block causes the filter screen to vibrate, making it easier to clean the large particles on the filter screen and thus ensuring the stable air intake efficiency of the device.

[0009] Furthermore, the adjustment mechanism includes a sealing plate, which is fixedly connected inside the air intake pipe. A movable plate is rotatably connected inside the air intake pipe, and the movable plate contacts the sealing plate. A sliding pin is fixedly connected to the surface of the movable plate, and the sliding pin is slidably connected to the air intake pipe. A rotating ring is fixedly connected to the end of the sliding pin, and the rotating ring is rotatably connected to the air intake pipe. A support ring is fixedly connected to the outside of the air intake pipe, and an insert rod is slidably connected inside the support ring. A retaining ring is fixedly connected to the outside of the insert rod, and a spring is provided on the outside of the air intake pipe. The rotating ring drives the movable plate to rotate, causing misalignment between the movable plate and the sealing plate, thereby changing the air intake efficiency of the device. The spring acts on the retaining ring, allowing the insert rod to move and contact the rotating ring, thus facilitating the limiting of the adjusted air intake volume.

[0010] Furthermore, the retaining ring and the rotating ring are in contact, and the retaining ring and the intake pipe are slidably connected. The retaining ring limits the movement of the spring.

[0011] Furthermore, one end of the spring is fixedly connected to the support ring, and the other end of the spring is fixedly connected to the retaining ring. The spring design facilitates the reset of the retaining ring.

[0012] Furthermore, the dust removal mechanism includes a support shaft, which is mounted inside the support plate via bearings. Fan blades are fixedly connected to the outer side of the support shaft, and a square rod is slidably connected inside the support shaft. A baffle is fixedly connected to the rear end of the square rod, and a compression spring is provided on the outer side of the square rod. The square rod and a filter screen are fixedly connected, and an inclined block is fixedly connected to the right end of the filter screen. Large particles entering the air intake pipe are filtered through the filter screen. Simultaneously, the airflow drives the fan blades to rotate, which in turn causes the fan blades to rotate, which in turn causes the square rod to rotate the filter screen. The collision between the inclined block and the baffle causes the filter screen to vibrate, making it easier to clean large particles from the filter screen and thus stabilizing the air intake efficiency of the device.

[0013] Furthermore, one end of the compression spring is fixedly connected to the baffle, and the other end of the compression spring is fixedly connected to the support shaft. By providing the compression spring, the baffle can be easily reset.

[0014] Furthermore, a stop block is fixedly connected to the outside of the air intake pipe, and the stop block is in contact with the inclined block. By setting the stop block and the inclined block in cooperation, the filter screen can be easily vibrated. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of a pulverized coal conveying fan with adjustable air intake according to an embodiment of the present invention; Figure 2 This invention relates to an adjustable air intake coal powder conveying fan. Figure 1 A 3D view of the wind turbine; Figure 3 This invention relates to an adjustable air intake coal powder conveying fan. Figure 2 Cross-sectional view of the intake pipe in the image; Figure 4 This invention relates to an adjustable air intake coal powder conveying fan. Figure 3 Enlarged view of point A in the image.

[0016] The following detailed explanation illustrates the specific implementation methods: The reference numerals in the accompanying drawings of the instruction manual include: 1. Frame; 2. Fan; 3. Inlet pipe; 4. Adjustment mechanism; 5. Filter screen; 6. Support plate; 7. Dust removal mechanism; 41. Sealing plate; 42. Movable plate; 43. Sliding pin; 44. Rotary ring; 45. Support ring; 46. Retaining ring; 47. Insert rod; 48. Spring; 71. Support shaft; 72. Fan blade; 73. Square rod; 74. Baffle; 75. Compression spring; 76. Inclined block; 77. Stop block. Detailed Implementation

[0017] The implementation examples are basically as follows Figure 1 , Figure 2As shown, this embodiment provides a coal powder conveying fan with adjustable air intake, including a frame 1, a fan 2 mounted on the frame 1, an air intake pipe 3 fixedly connected to the front end of the fan 2, an adjustment mechanism 4 mounted on the air intake pipe 3, a filter screen 5 movably connected to the outside of the air intake pipe 3, a support plate 6 fixedly connected to the inside of the air intake pipe 3, and a dust removal mechanism 7 mounted on the support plate 6.

[0018] like Figures 1-4 As shown, the adjusting mechanism 4 includes a sealing plate 41. The sealing plate 41 is fixedly connected inside the air intake pipe 3. A movable plate 42 is rotatably connected inside the air intake pipe 3, and the movable plate 42 contacts the sealing plate 41. A sliding pin 43 is fixedly connected to the surface of the movable plate 42, and the sliding pin 43 is slidably connected to the air intake pipe 3. A rotating ring 44 is fixedly connected to the end of the sliding pin 43, and the rotating ring 44 is rotatably connected to the air intake pipe 3. A support ring 45 is fixedly connected to the outside of the air intake pipe 3. A retaining ring 46 contacts the rotating ring 44, and the retaining ring 46 is slidably connected to the air intake pipe 3. By setting the retaining ring 46, the spring 48 is limited. The inner... The device has a sliding connection with a rod 47, and a retaining ring 46 is fixedly connected to the outside of the rod 47. A spring 48 is provided on the outside of the air inlet pipe 3. One end of the spring 48 is fixedly connected to the support ring 45, and the other end of the spring 48 is fixedly connected to the retaining ring 46. By setting the spring 48, the retaining ring 46 can be easily reset. The rotating ring 44 drives the movable plate 42 to rotate, causing the movable plate 42 and the sealing plate 41 to be misaligned, thereby changing the air intake efficiency of the device. Furthermore, the spring 48 acts on the retaining ring 46, allowing the rod 47 to move and contact the rotating ring 44, thus making it easy to limit the air intake after adjustment.

[0019] like Figure 1 , Figure 3 As shown, the dust removal mechanism 7 includes a support shaft 71. The support shaft 71 is mounted inside the support plate 6 via bearings. A fan blade 72 is fixedly connected to the outside of the support shaft 71. A square rod 73 is slidably connected inside the support shaft 71. A baffle 74 is fixedly connected to the rear end of the square rod 73. A compression spring 75 is provided on the outside of the square rod 73. One end of the compression spring 75 is fixedly connected to the baffle 74, and the other end is fixedly connected to the support shaft 71. By providing the compression spring 75, the baffle 74 can be easily reset. The square rod 73 is fixedly connected to the filter screen 5. An inclined plate is fixedly connected to the right end of the filter screen 5. Block 76, a stop block 77 is fixedly connected to the outside of the air intake pipe 3. The stop block 77 and the inclined block 76 are in contact. By setting the stop block 77 and the inclined block 76 to cooperate, the filter screen 5 can vibrate easily. The filter screen 5 filters large particles entering the air intake pipe 3. At the same time, the airflow drives the fan blade 72 to rotate, which in turn drives the support shaft 71 to rotate, which in turn drives the square rod 73 to rotate the filter screen 5. The collision between the inclined block 76 and the stop block 77 makes the filter screen 5 vibrate, which makes it easier to clean large particles on the filter screen 5, and thus makes the air intake efficiency of the device stable.

[0020] The specific implementation process of this utility model is as follows: During use, the device is adjusted according to the required air intake volume. The baffle ring 46 is manually moved towards the fan 2. The movement of the baffle ring 46 compresses the spring 48, causing the insert rod 47 to move and disengage from the rotating ring 44. The rotating ring 44 is then manually rotated, causing the sliding pin 43 to move. The sliding pin 43 then rotates the movable plate 42. This rotation of the movable plate 42 by the rotating ring 44 causes misalignment between the movable plate 42 and the sealing plate 41, thereby changing the air intake efficiency of the device. Furthermore, the spring 48 acts on... The baffle ring 46 allows the insertion rod 47 to move and contact the rotating ring 44, thus facilitating the limiting of the air intake volume after adjustment. During air intake, the airflow enters the fan 2 and filters large particles entering the air intake pipe 3 through the filter screen 5. The airflow drives the fan blade 72 to rotate, which in turn drives the support shaft 71 to rotate. The support shaft 71 drives the square rod 73 to rotate, and the square rod 73 drives the filter screen 5 to rotate. Furthermore, the filter screen 5 vibrates due to the collision between the inclined block 76 and the baffle block 77, making it easier to clean large particles on the filter screen 5 and thus stabilizing the air intake efficiency of the device.

[0021] The rotating ring 44 drives the movable plate 42 to rotate, causing the movable plate 42 and the sealing plate 41 to be misaligned, thereby changing the air intake efficiency of the device. Furthermore, the spring 48 acts on the retaining ring 46, allowing the insertion rod 47 to move and contact the rotating ring 44, thus making it easier to limit the air intake after adjustment.

[0022] Large particles entering the air intake pipe 3 are filtered by the filter screen 5. At the same time, the airflow drives the fan blade 72 to rotate, which in turn drives the support shaft 71 to rotate. This causes the square rod 73 to drive the filter screen 5 to rotate. The collision between the inclined block 76 and the baffle 77 causes the filter screen 5 to vibrate, making it easier to clean the large particles on the filter screen 5 and thus stabilizing the air intake efficiency of the device.

[0023] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A pulverized coal conveying fan with adjustable air intake, comprising a frame, characterized in that: A fan is mounted on the frame, an air inlet pipe is fixedly connected to the front end of the fan, an adjustment mechanism is mounted on the air inlet pipe, a filter screen is movably connected to the outside of the air inlet pipe, a support plate is fixedly connected to the inside of the air inlet pipe, and a dust removal mechanism is mounted on the support plate.

2. The adjustable air intake coal powder conveying fan according to claim 1, characterized in that: The adjusting mechanism includes a sealing plate, which is fixedly connected inside the air intake pipe. A movable plate is rotatably connected inside the air intake pipe, and the movable plate contacts the sealing plate. A sliding pin is fixedly connected to the surface of the movable plate, and the sliding pin is slidably connected to the air intake pipe. A rotating ring is fixedly connected to the end of the sliding pin, and the rotating ring is rotatably connected to the air intake pipe. A support ring is fixedly connected to the outside of the air intake pipe, and a plug rod is slidably connected inside the support ring. A retaining ring is fixedly connected to the outside of the plug rod, and a spring is provided on the outside of the air intake pipe.

3. The pulverized coal conveying fan with adjustable air intake volume according to claim 2, characterized in that: The retaining ring and the rotating ring are in contact, and the retaining ring and the intake pipe are slidably connected.

4. The pulverized coal conveying fan with adjustable air intake volume according to claim 2, characterized in that: One end of the spring is fixedly connected to the support ring, and the other end of the spring is fixedly connected to the retaining ring.

5. A pulverized coal conveying fan with adjustable air intake according to claim 1, characterized in that: The dust removal mechanism includes a support shaft, which is mounted inside the support plate via bearings. A fan blade is fixedly connected to the outside of the support shaft. A square rod is slidably connected inside the support shaft. A baffle is fixedly connected to the rear end of the square rod. A compression spring is provided on the outside of the square rod. The square rod is fixedly connected to a filter screen. An inclined block is fixedly connected to the right end of the filter screen.

6. The pulverized coal conveying fan with adjustable air intake volume according to claim 5, characterized in that: One end of the compression spring is fixedly connected to the baffle, and the other end of the compression spring is fixedly connected to the support shaft.

7. A pulverized coal conveying fan with adjustable air intake according to claim 5, characterized in that: A stop block is fixedly connected to the outside of the air intake pipe, and the stop block is in contact with the inclined block.

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