Adjustable ceramic air supply device

Abstract

The utility model discloses an adjustable ceramic air supply device which comprises a pulverized coal pipe, an annular piece is sleeved and fixedly installed on the pulverized coal pipe, the pulverized coal pipe is sleeved and communicated with a discharge pipe, the discharge pipe is connected with the annular piece through a plurality of fastening bolts, and an air inlet pipe is communicated and fixedly installed at the upper end of the discharge pipe. An annular sliding groove is formed in the pulverized coal pipe, a movable part is arranged in the discharging pipe, one end of the movable part extends into the annular sliding groove and is arranged in the annular sliding groove in a sliding mode, according to the adjustable ceramic air supply device, air flow is discharged through a gap between the movable part and the discharging pipe and is mixed with pulverized coal in the pulverized coal pipe, and a generated material column can be damaged; the long-distance stable conveying effect is achieved, the device is used in the pneumatic conveying process of the pulverized coal, the high-concentration pulverized coal discharged from the injection tank is diluted, solid and gas are fully and evenly mixed, the pulverized coal and the gas form a stable concentrated-phase solid-gas two-phase flow, long-distance, high-concentration and large-injection-quantity conveying of the pulverized coal is facilitated, and the device is key equipment for long-distance concentrated-phase conveying of the pulverized coal.

Description

Technical Field

[0001] The utility model relates to the technical field related to air replenishers, in particular to an adjustable ceramic air replenisher. Background Art

[0002] Pulverized coal pipelines are a specialized system used to transport pulverized coal. They are typically constructed from steel pipe or other corrosion-resistant, high-temperature-resistant materials. These pipelines are designed with consideration given to the physical properties and transportation requirements of pulverized coal to ensure it can be efficiently and safely transported from one location to another.

[0003] When coal pulverizers are too fine, the surface tension between the particles increases, causing them to clump together and become difficult to disperse, resulting in poor fluidity. Furthermore, when the moisture content of coal pulverizers drops below 1%, their surface softness deteriorates, increasing friction between the particles and significantly reducing fluidity. Furthermore, overly dry coal pulverizers are prone to clumping due to static electricity, further affecting fluidity.

[0004] Therefore, when conveying coal powder in existing coal powder conveying pipelines, the coal powder has poor fluidity. The poor fluidity of coal powder will cause its flow speed in the conveying pipeline to slow down, and may even cause blockage. This will not only reduce the conveying efficiency and increase the conveying time, but may also affect the stability and continuity of the entire production process. In order to overcome the resistance caused by the poor fluidity of coal powder, the conveying system may need to consume more energy to push the coal powder forward. This will not only increase energy consumption costs, but may also have a negative impact on the life of the conveying equipment. The poor fluidity of coal powder may also cause increased wear on the conveying equipment. Since the coal powder does not flow smoothly in the pipeline, it may cause more friction and collision with the inner wall of the pipeline, thereby accelerating the wear and aging of the equipment. For this reason, we propose an adjustable ceramic air replenisher. Utility Model Content

[0005] In order to solve the defects of the prior art, the utility model provides an adjustable ceramic air replenisher.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] The utility model discloses an adjustable ceramic air replenisher, comprising a pulverized coal pipe, an annular sheet is sleeved and fixedly installed on the pulverized coal pipe, a discharge pipe is sleeved and connected to the pulverized coal pipe, the discharge pipe and the annular sheet are connected by a plurality of fastening bolts, and the upper end of the discharge pipe is connected to and fixedly installed with an air intake pipe.

[0008] The pulverized coal pipe is provided with an annular slide groove, and a movable part is provided in the discharge pipe. One end of the movable part extends into the annular slide groove and is slidably provided in the annular slide groove. A plurality of guide grooves distributed in a circular array are provided on one side of the movable part. Magnets are fixedly installed in the guide grooves. A plurality of guide rods distributed in a circular array are fixedly installed in the annular slide groove. One end of the guide rods is respectively inserted into the guide grooves. Springs are respectively sleeved on the guide rods. Both ends of the springs are respectively fixedly connected to the guide groove and the movable part. An electromagnet is fixedly installed on one end of the guide rod located in the guide groove.

[0009] As a preferred technical solution of the present invention, flanges are fixedly installed on the upper end of the air inlet pipe, the outer end of the pulverized coal pipe and the end of the discharge pipe.

[0010] As a preferred technical solution of the present invention, a first flow-guiding slope is provided in the pulverized coal pipe.

[0011] As a preferred technical solution of the present invention, a second flow-guiding slope is provided at one end of the movable member.

[0012] As an optimal technical solution of the present invention, a support bar is fixedly installed in the pulverized coal pipe, a rotating shaft is rotatably installed on the support bar, a bracket is fixedly installed on the end of the rotating shaft, and a plurality of brush plates distributed in a circular array are fixedly connected to the outer end of the bracket.

[0013] As a preferred technical solution of the present invention, the surface of the brush plate is provided with bristles that are in contact with the inner wall of the pulverized coal pipe.

[0014] As a preferred technical solution of the present invention, one side of the support bar is configured to be in a pointed cone shape.

[0015] As a preferred technical solution of the present invention, a driving mechanism is provided on the pulverized coal pipe, and the driving mechanism is connected to the rotating shaft and is used to drive the multiple brush plates to rotate around the rotating shaft.

[0016] As a preferred technical solution of the present utility model, the driving mechanism includes a transmission shaft, which is rotatably mounted on the pulverized coal pipe, a bevel gear meshing with the lower end of the transmission shaft and the rotating shaft is mounted, a driven wheel is fixedly mounted on the upper end of the transmission shaft, a motor is fixedly mounted outside the pulverized coal pipe, a driving wheel is fixedly mounted on the output shaft end of the motor, and the driving wheel is meshed with the driven wheel.

[0017] As a preferred technical solution of the present invention, a protective cover is fixedly installed outside the pulverized coal pipe, and the protective cover covers the outside of the motor.

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

[0019] 1. This type of adjustable ceramic air replenisher has an air flow discharged from the gap between the movable part and the discharge pipe and mixed with the pulverized coal in the pulverized coal pipe, which can destroy the generated material column and achieve a long-distance stable conveying effect. The device is used in the process of pneumatic conveying of pulverized coal to dilute the high-concentration pulverized coal coming out of the injection tank, so that the solid and gas are fully and evenly mixed, and the pulverized coal and gas form a stable dense phase solid-gas two-phase flow. It has good guidance and can make the pulverized coal more fluid, which is conducive to the long-distance, high-concentration, and large-volume conveying of pulverized coal. It is a key equipment for long-distance dense phase conveying of pulverized coal.

[0020] 2. This adjustable ceramic air supply device operates by energizing the electromagnet, which exerts a repulsive force on the magnet, causing the magnet and the movable part to move synchronously. The movable part moves a certain distance toward the discharge pipe, changing the gap between the movable part and the discharge pipe, thereby adjusting the intake volume of the airflow mixed with pulverized coal. By controlling the current in the electromagnet, the gap between the movable part and the discharge pipe can be controlled, and the intake volume of the airflow can be adjusted accordingly. By varying the gap in the air supply duct, the device adjusts the air supply volume and flow rate, thereby adjusting the coal injection amount to meet production needs.

[0021] 3. This adjustable ceramic air replenisher uses a motor to drive a brush plate to rotate around a shaft and clean the pulverized coal adhering to the inner wall of the pulverized coal pipe. This cleaning significantly reduces pipe resistance, allowing the coal to flow more smoothly through the pipe. This not only increases the conveying speed of the pulverized coal, but also reduces energy consumption during the conveying process, thereby improving the efficiency of the entire conveying system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a structural diagram of an adjustable ceramic air replenisher of the utility model;

[0024] Figure 2 This is a cross-sectional view of an adjustable ceramic air replenisher of the utility model;

[0025] Figure 3 This is an enlarged cross-sectional view of a part of the structure of an adjustable ceramic air replenisher of the utility model;

[0026] Figure 4 This is an enlarged structural diagram of the movable parts of an adjustable ceramic air replenisher of the utility model;

[0027] Figure 5 This utility model is an adjustable ceramic air replenisher Figure 3 A is an enlarged schematic diagram.

[0028] In the figure: pulverized coal pipe 1, annular sheet 2, discharge pipe 3, fastening bolt 4, air intake pipe 5, annular chute 6, movable part 7, guide groove 8, magnet 9, guide rod 10, spring 11, electromagnet 12, first guide slope 13, second guide slope 14, support bar 15, rotating shaft 16, bracket 17, brush plate 18, transmission shaft 19, bevel gear 20, driven pulley 21, motor 22, driving pulley 23, protective cover 24. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0030] Example: Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the utility model discloses an adjustable ceramic air replenisher, comprising a pulverized coal pipe 1, on which an annular plate 2 is sleeved and fixedly mounted. A discharge pipe 3 is sleeved and connected to the outer surface of the pulverized coal pipe 1. The discharge pipe 3 is connected to the annular plate 2 by a plurality of fastening bolts 4. The upper end of the discharge pipe 3 is connected to and fixedly mounted with an air inlet pipe 5. The pulverized coal pipe 1 has an annular chute 6, and a movable member 7 is disposed within the discharge pipe 3. One end of the movable member 7 extends into the annular chute 6 and is slidably mounted therein. One side of the movable member 7 has a plurality of guide grooves 8 distributed in a circumferential array, each of which has a magnet 9 fixedly mounted therein. The annular chute 6 has a plurality of guide rods 10 fixedly mounted therein, each of which has one end inserted into the guide groove 8. A spring 11 is sleeved on each guide rod 10, and the ends of the spring 11 are fixedly connected to the guide groove 8 and the movable member 7, respectively. An electromagnet 12 is fixedly mounted on the end of each guide rod 10 located within the guide groove 8. By energizing electromagnet 12, it exerts a repulsive force on magnet 9, causing magnet 9 and movable member 7 to move synchronously. The movable member 7 moves a distance toward discharge pipe 3, changing the gap between the movable member 7 and discharge pipe 3. This adjusts the amount of airflow mixed with pulverized coal. By controlling the current flowing through electromagnet 12, the gap between the movable member 7 and discharge pipe 3 is controllable, and the amount of airflow can be adjusted accordingly. By varying the gap in the air supply passage, the device adjusts the amount and velocity of the supply air, thereby regulating the amount of coal injection to meet production needs.

[0031] Flanges are fixedly mounted on the upper end of the air inlet pipe 5, the outer end of the pulverized coal pipe 1, and the end of the discharge pipe 3. A first guide slope 13 is provided inside the pulverized coal pipe 1. A second guide slope 14 is provided at one end of the movable member 7. These first and second guide slopes 13, 14 guide the pulverized coal, ensuring smoother flow.

[0032] Among them, a support bar 15 is fixedly installed in the pulverized coal pipe 1, and a rotating shaft 16 is rotatably installed on the support bar 15. A bracket 17 is fixedly installed at the end of the rotating shaft 16. The outer end of the bracket 17 is fixedly connected to a plurality of brush plates 18 distributed in a circular array. The surface of the brush plate 18 is provided with bristles that contact the inner wall of the pulverized coal pipe 1. One side of the support bar 15 is configured to be conical. A driving mechanism is provided on the pulverized coal pipe 1, and the driving mechanism is connected to the rotating shaft 16 and is used to drive the plurality of brush plates 18 to rotate around the rotating shaft 16. The driving mechanism includes a transmission shaft 19, which is rotatably installed on the pulverized coal pipe 1. The lower end of the transmission shaft 19 is equipped with a bevel gear 20 that meshes with the rotating shaft 16. The upper end of the transmission shaft 19 is fixedly installed with a driven wheel 21. A motor 22 is fixedly installed outside the pulverized coal pipe 1, and the output shaft end of the motor 22 is fixedly equipped with a driving wheel 23, which meshes with the driven wheel 21. A protective cover 24 is fixedly installed outside the pulverized coal pipe 1 , and the protective cover 24 covers the outside of the motor 22 .

[0033] Working principle: The pulverized coal pipe 1 is installed on the pulverized coal main pipe at the outlet of the injection tank, and air is introduced into the air inlet pipe 5. The air is discharged from the gap between the movable part 7 and the discharge pipe 3 and mixed with the pulverized coal in the pulverized coal pipe 1, which can destroy the generated material column and achieve a long-distance stable transportation effect. The device is used in the process of pneumatic conveying of pulverized coal to dilute the high-concentration pulverized coal coming out of the injection tank, so that the solid and gas are fully and evenly mixed, and the pulverized coal and gas form a stable dense phase solid-gas two-phase flow. It has good guidance and can make the pulverized coal more fluid, which is conducive to the long-distance, high-concentration and large-volume transportation of pulverized coal. It is a key equipment for long-distance dense phase transportation of pulverized coal.

[0034] By energizing electromagnet 12, it exerts a repulsive force on magnet 9, causing magnet 9 and movable member 7 to move synchronously. The movable member 7 moves a distance toward discharge pipe 3, changing the gap between the movable member 7 and discharge pipe 3. This adjusts the amount of airflow mixed with pulverized coal. By controlling the current flowing through electromagnet 12, the gap between the movable member 7 and discharge pipe 3 is controllable, and the amount of airflow can be adjusted accordingly. By varying the gap in the air supply passage, the device adjusts the amount and velocity of the supply air, thereby regulating the amount of coal injection to meet production needs.

[0035] The motor 22 drives the driving wheel 23, which in turn drives the driven wheel 21. This in turn drives the transmission shaft 19, which in turn drives the rotating shaft 16 via two bevel gears 20. This causes the brush plate 18 to rotate about the rotating shaft 16 and clean the pulverized coal adhering to the inner wall of the pulverized coal pipe 1. Cleaning the pulverized coal adhering to the inner wall of the pulverized coal pipe significantly reduces the resistance of the pipe, making the pulverized coal flow more smoothly within the pipe. This not only increases the conveying speed of the pulverized coal, but also reduces energy consumption during the conveying process, thereby improving the efficiency of the entire conveying system.

[0036] Finally, it should be noted that the above description is merely 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 will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An adjustable ceramic air replenisher, comprising a pulverized coal pipe (1), characterized in that: An annular plate (2) is sleeved and fixedly mounted on the pulverized coal pipe (1), a discharge pipe (3) is sleeved and connected to the outer surface of the pulverized coal pipe (1), the discharge pipe (3) and the annular plate (2) are connected via a plurality of fastening bolts (4), and an air inlet pipe (5) is connected and fixedly mounted on the upper end of the discharge pipe (3); The pulverized coal pipe (1) is provided with an annular chute (6), and a movable part (7) is provided in the discharge pipe (3). One end of the movable part (7) extends into the annular chute (6) and is slidably provided in the annular chute (6). A plurality of guide grooves (8) distributed in a circumferential array are provided on one side of the movable part (7). Magnets (9) are fixedly installed in the guide grooves (8). A plurality of guide rods (10) distributed in a circumferential array are fixedly installed in the annular chute (6). One end of the guide rod (10) is respectively inserted into the guide groove (8). A spring (11) is sleeved on the guide rod (10). The two ends of the spring (11) are respectively fixedly connected to the guide groove (8) and the movable part (7). An electromagnet (12) is fixedly installed on one end of the guide rod (10) located in the guide groove (8).

2. The adjustable ceramic air replenisher according to claim 1, characterized in that: Flanges are fixedly mounted on the upper end of the air inlet pipe (5), the outer end of the pulverized coal pipe (1) and the end of the discharge pipe (3).

3. The adjustable ceramic air replenisher according to claim 1, characterized in that: A first flow guiding slope (13) is provided in the pulverized coal pipe (1).

4. The adjustable ceramic air replenisher according to claim 1, characterized in that: A second flow-guiding slope (14) is provided at one end of the movable member (7).

5. The adjustable ceramic air replenisher according to claim 4, characterized in that: A support bar (15) is fixedly installed in the pulverized coal pipe (1), a rotating shaft (16) is rotatably installed on the support bar (15), a bracket (17) is fixedly installed at the end of the rotating shaft (16), and a plurality of brush plates (18) distributed in a circumferential array are fixedly connected to the outer end of the bracket (17).

6. The adjustable ceramic air replenisher according to claim 5, characterized in that: The surface of the brush plate (18) is provided with bristles that are in contact with the inner wall of the pulverized coal pipe (1).

7. The adjustable ceramic air replenisher according to claim 6, characterized in that: One side of the support bar (15) is configured in a pointed cone shape.

8. The adjustable ceramic air replenisher according to claim 7, characterized in that: The pulverized coal pipe (1) is provided with a driving mechanism, which is connected to the rotating shaft (16) and is used to drive a plurality of brush plates (18) to rotate around the rotating shaft (16).

9. The adjustable ceramic air replenisher according to claim 8, characterized in that: The driving mechanism comprises a transmission shaft (19), the transmission shaft (19) being rotatably mounted on the pulverized coal pipe (1), a bevel gear (20) being mounted on the lower end of the transmission shaft (19) and meshing with the rotating shaft (16), a driven wheel (21) being fixedly mounted on the upper end of the transmission shaft (19), a motor (22) being fixedly mounted outside the pulverized coal pipe (1), a driving wheel (23) being fixedly mounted on the output shaft end of the motor (22), and the driving wheel (23) being meshing with the driven wheel (21).

10. The adjustable ceramic air replenisher according to claim 9, characterized in that: A protective cover (24) is fixedly mounted on the outside of the pulverized coal pipe (1), and the protective cover (24) covers the outside of the motor (22).

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