Multi-channel air powder mixer

Abstract

The utility model discloses a multi-channel air powder mixer which comprises a mixing pipe, one end of the mixing pipe is fixedly connected with a first conveying air pipeline, one side of the mixing pipe is fixedly connected with a second conveying air pipeline, the other side of the mixing pipe is fixedly connected with a third conveying air pipeline, and the other end of the mixing pipe is fixedly connected with a discharging pipeline. A discharging bin is fixedly connected to the top of the mixing pipe, an inner groove is formed in the discharging bin, an electric telescopic rod is fixedly connected to one side in the inner groove, a motor drives a rotating shaft to rotate, the rotating shaft drives a disc on the top and a connecting rod to rotate in the mixing pipe, and stirring rods on the outer side of the connecting rod fully stir air and powder in the mixing pipe. And the ultrasonic transducers installed on the inner sides of the first conveying air pipeline and the discharging pipeline enable air to fluctuate and scatter in all directions to enter the mixing pipe, the contact range of the air and the powder is enlarged, the air and the powder are fully mixed, the mixing process is more stable, and the using effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of air-powder mixers, and in particular relates to a multi-channel air-powder mixer. Background Art

[0002] Pulverized coal furnaces, especially industrial pulverized coal furnaces, have a small number of burners and relatively small combustion power. Some even have only one burner, so burner combustion fluctuations will directly affect the safe and stable operation of the boiler. As the main equipment for pneumatic powder feeding in pulverized coal furnaces, air-powder mixers play an important role. Air-powder mixers are important components in industrial furnaces for non-ferrous metal smelting. Solid fuel powder in the powder bin falls into the air-powder mixer through the powder feeder, and the solid fuel powder is carried into the burner by the external conveying wind of the air-powder mixer for combustion in the furnace.

[0003] Existing air-powder mixers are mostly mixed with powder by wind speed punching during use. The mixing process is rough, the mixing space is small, and the powder is difficult to fully mix, resulting in poor use effect. When the powder flow rate is large during feeding, it is easy to get blocked in the powder drop pipe, resulting in difficulty in feeding the powder, or the powder flow rate is too much and mixed unevenly with the gas, which affects the subsequent use and easily causes safety hazards. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a multi-channel air-powder mixer to solve the problem that the existing air-powder mixer proposed in the above background technology is mostly mixed with powder by wind speed stamping during use, the mixing process is rough, the mixing space is small, and the powder is difficult to be fully mixed, resulting in poor use effect, and when the powder flow rate is large during feeding, it is easy to get blocked in the powder dropping pipe, resulting in difficulty in feeding the powder, or the powder flow rate is too much and the mixing is uneven with the gas, which affects the subsequent use and easily causes safety hazards.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a multi-channel air-powder mixer, comprising a mixing tube, one end of the mixing tube is fixedly connected to a first conveying air duct, one side of the mixing tube is fixedly connected to a second conveying air duct, the other side of the mixing tube is fixedly connected to a third conveying air duct, the other end of the mixing tube is fixedly connected to a discharge pipe, the top of the mixing tube is fixedly connected to a lower material bin, an inner groove is provided inside the lower material bin, one side of the inner groove is fixedly connected to an electric telescopic rod, one end of the electric telescopic rod is fixedly connected to a baffle, the bottom of the mixing tube is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating shaft, the top of the rotating shaft is fixedly connected to a disc, and the top of the disc is fixedly connected to a connecting rod.

[0006] Preferably, a controller is fixedly connected to one side of the lower silo.

[0007] Preferably, a filter screen is fixedly connected to the upper end of the lower silo.

[0008] Preferably, two inner grooves are symmetrically arranged.

[0009] Preferably, the inner groove and the baffle are slidably connected.

[0010] Preferably, ultrasonic transducers are symmetrically fixedly connected to the inner sides of the first air delivery duct and the discharge duct.

[0011] Preferably, three connecting rods are arranged in a circular shape, and stirring rods are symmetrically fixedly connected to the outer sides of the connecting rods.

[0012] Preferably, the rotating shaft and the mixing tube are rotationally connected.

[0013] Compared with the prior art, the utility model provides a multi-channel air-powder mixer having the following

[0014] Beneficial effects:

[0015] 1. The utility model is provided with a stirring rod, and a motor is fixed at the bottom of the mixing tube. When the air and powder are mixed, the motor is started, the motor drives the rotating shaft to rotate, and the rotating shaft drives the top disc and the connecting rod to rotate inside the mixing tube. The stirring rod outside the connecting rod fully stirs the air and powder in the mixing tube to increase the dispersion area of ​​the powder. The ultrasonic transducer installed inside the first conveying air duct and the discharge duct causes the wind to fluctuate and scatter into the mixing tube, thereby increasing the contact range of the wind and the powder, making them fully mixed, the mixing process more stable, and the use effect is good.

[0016] 2. The utility model sets a baffle. During the feeding process, the powder is first filtered through the filter screen to increase the powder quality and improve the mixing effect. Then the powder enters the feeding bin and is blocked by the baffle. The distance between the two baffles can be adjusted by the electric telescopic rod to control the flow rate of the powder to prevent blockage in the powder dropping pipe when the powder flow is large, resulting in difficulty in feeding the powder, or excessive powder flow and uneven mixing with the gas, which affects the subsequent use and causes certain safety hazards.

[0017] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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:

[0019] Figure 1 This is a schematic diagram of the axonometric structure of one side of a multi-channel air-powder mixer proposed by the utility model;

[0020] Figure 2 This is a side structural schematic diagram of a multi-channel air-powder mixer proposed by the utility model;

[0021] Figure 3 This is a front cross-sectional structural schematic diagram of a multi-channel air-powder mixer proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the stirring rod structure of a multi-channel air-powder mixer proposed by the utility model;

[0023] In the figure: a mixing tube 1, a first conveying air duct 2, a second conveying air duct 3, a third conveying air duct 4, a discharging pipe 5, a lower silo 6, a controller 7, a filter screen 8, an inner tank 9, an electric telescopic rod 10, a baffle 11, an ultrasonic transducer 12, a motor 13, a rotating shaft 14, a disc 15, a connecting rod 16, and a stirring rod 17. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4The utility model provides a technical solution: a multi-channel air-powder mixer, comprising a mixing tube 1, one end of the mixing tube 1 is fixedly connected to a first conveying air duct 2, one side of the mixing tube 1 is fixedly connected to a second conveying air duct 3, the other side of the mixing tube 1 is fixedly connected to a third conveying air duct 4, the other end of the mixing tube 1 is fixedly connected to a discharging pipe 5, the top of the mixing tube 1 is fixedly connected to a lower bin 6, an inner tank 9 is arranged inside the lower bin 6, one side of the inner tank 9 is fixedly connected to an electric telescopic rod 10, one end of the electric telescopic rod 10 is fixedly connected to a baffle 11, during the discharging process, the powder is first filtered through a filter screen 8 to increase the powder quality and improve the mixing effect, and then enters the lower bin 6, the baffle 11 blocks the powder, and the distance between the two baffles 11 can be adjusted by the electric telescopic rod 10, so as to control the flow rate of the powder to prevent the powder from being easily blocked in the powder drop pipe when the powder flow rate is large, resulting in The powder is difficult to put down, or the powder flow is too much and the gas is mixed unevenly, which affects the subsequent use and causes certain safety hazards. A motor 13 is fixedly connected to the bottom of the mixing tube 1, and a rotating shaft 14 is fixedly connected to the output end of the motor 13. A disc 15 is fixedly connected to the top of the rotating shaft 14, and a connecting rod 16 is fixedly connected to the top of the disc 15. The motor 13 is fixed at the bottom of the mixing tube 1. When the wind and powder are mixed, the motor 13 is started, and the motor 13 drives the rotating shaft 14 to rotate. The rotating shaft 14 drives the top disc 15 and the connecting rod 16 to rotate inside the mixing tube 1. The stirring rod 17 outside the connecting rod 16 fully stirs the wind and powder in the mixing tube 1 to increase the dispersion area of ​​the powder. The ultrasonic transducer 12 installed on the inner side of the first conveying air duct 2 and the discharge duct 5 causes the wind to fluctuate and scatter into the mixing tube 1, thereby increasing the contact range of the wind and powder, making them fully mixed, and the mixing process is more stable and the use effect is good.

[0026] In the present invention, preferably, a controller 7 is fixedly connected to one side of the lower bin 6 .

[0027] In the present invention, preferably, a filter screen 8 is fixedly connected to the upper end of the lower material bin 6 .

[0028] In the present invention, preferably, two inner grooves 9 are symmetrically arranged.

[0029] In the present invention, preferably, the inner groove 9 and the baffle 11 are slidably connected.

[0030] In the present invention, preferably, ultrasonic transducers 12 are symmetrically fixedly connected to the inner sides of the first air delivery duct 2 and the discharge duct 5 .

[0031] In the present invention, preferably, three connecting rods 16 are arranged in a circular shape, and stirring rods 17 are symmetrically fixedly connected to the outer sides of the connecting rods 16 .

[0032] In the present invention, preferably, the rotating shaft 14 and the mixing tube 1 are rotationally connected.

[0033] The working principle and use process of the utility model are as follows: when in use, first pour the powder into the lower bin 6, filter the powder through the filter screen 8 to increase the powder quality and improve the mixing effect, and then enter the lower bin 6, the baffle 11 blocks the powder, and the distance between the two baffles 11 can be adjusted by the electric telescopic rod 10 to control the flow rate of the powder, so as to prevent the powder flow from being easily blocked in the powder drop pipe when the powder flow is large, resulting in difficulty in dropping the powder, or excessive powder flow and uneven mixing with the gas, which affects the subsequent use and causes certain safety hazards. During the mixing process, the motor 13 is fixed on the mixing tube 1 At the bottom, when the air and powder are mixed, the motor 13 is started, and the motor 13 drives the rotating shaft 14 to rotate. The rotating shaft 14 drives the top disc 15 and the connecting rod 16 to rotate inside the mixing tube 1. The stirring rod 17 outside the connecting rod 16 fully stirs the wind and powder in the mixing tube 1 to increase the dispersion area of ​​the powder. The ultrasonic transducer 12 installed inside the first conveying air duct 2 and the discharge duct 5 causes the wind to fluctuate and scatter into the mixing tube 1, thereby increasing the contact range of the wind and the powder and making them fully mixed. The mixing process is more stable and the use effect is good. Multiple ventilation ducts convey the wind to improve the mixing effect.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel air-powder mixer, comprising a mixing tube (1), characterized in that: One end of the mixing tube (1) is fixedly connected to a first air conveying duct (2), one side of the mixing tube (1) is fixedly connected to a second air conveying duct (3), the other side of the mixing tube (1) is fixedly connected to a third air conveying duct (4), the other end of the mixing tube (1) is fixedly connected to a discharge duct (5), the top of the mixing tube (1) is fixedly connected to a lower material bin (6), an inner groove (9) is provided inside the lower material bin (6), one side of the inner groove (9) is fixedly connected to an electric telescopic rod (10), one end of the electric telescopic rod (10) is fixedly connected to a baffle (11), the bottom of the mixing tube (1) is fixedly connected to a motor (13), the output end of the motor (13) is fixedly connected to a rotating shaft (14), the top of the rotating shaft (14) is fixedly connected to a disc (15), and the top of the disc (15) is fixedly connected to a connecting rod (16).

2. A multi-channel air-powder mixer according to claim 1, characterized in that: A controller (7) is fixedly connected to one side of the lower material bin (6).

3. A multi-channel air-powder mixer according to claim 1, characterized in that: A filter screen (8) is fixedly connected to the upper end of the lower material bin (6).

4. A multi-channel air-powder mixer according to claim 1, characterized in that: Two inner grooves (9) are symmetrically arranged.

5. A multi-channel air-powder mixer according to claim 1, characterized in that: The inner groove (9) and the baffle (11) are slidably connected.

6. A multi-channel air-powder mixer according to claim 1, characterized in that: Ultrasonic transducers (12) are symmetrically fixedly connected to the inner sides of the first air delivery duct (2) and the discharge duct (5).

7. A multi-channel air-powder mixer according to claim 1, characterized in that: The connecting rods (16) are arranged in a circular shape and are three in number. The outer sides of the connecting rods (16) are symmetrically fixedly connected with stirring rods (17).

8. The multi-channel air-powder mixer according to claim 1, characterized in that: The rotating shaft (14) and the mixing tube (1) are rotationally connected.

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