Powder conveying system

Abstract

The utility model belongs to the technical field of powder conveying, and discloses a powder conveying system. The system comprises a vacuum feeding machine, and a spray drying tower, a first vibrating screen, a vacuum feeding bin, a storage tank, a mixer and a second vibrating screen which are connected in sequence, the output end of the first vibrating screen is connected with a charging barrel, and the output end of the charging barrel is connected with the input end of the vacuum feeding bin through a vacuum suction pipeline; the vacuum feeding machine provides adsorption power for the vacuum feeding bin. The output end of the storage tank is connected with the input end of the mixer through a first butt joint device; and the output end of the mixer is connected with the input end of the second vibrating screen through a second butt joint device. According to the powder conveying system, flying dust in the powder conveying process can be reduced, and the risk that the powder is polluted is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder transportation, and particularly relates to a powder conveying system. Background Art

[0002] In the process of powder screening and mixing in powder manufacturing, powder needs to be transported.

[0003] The existing powder manufacturing system usually uses manual suction for transportation, and requires frequent manual loading and unloading operations. This powder transportation method has the following disadvantages:

[0004] (1) The entire process is very cumbersome and requires on-site personnel to follow up in real time, resulting in low production efficiency;

[0005] (2) Dust will be generated during powder transportation, which will endanger the health of operators;

[0006] (3) Powder contamination is likely to occur during powder operation. Utility Model Content

[0007] In order to solve the above problems, the utility model provides a powder conveying system, which can reduce the generation of dust during the powder conveying process and reduce the risk of powder contamination.

[0008] A powder conveying system, the system comprises a vacuum loader and a spray drying tower, a first vibrating screen, a vacuum loading bin, a storage tank, a mixer, and a second vibrating screen connected in sequence; the output end of the first vibrating screen is connected to a barrel, and the output end of the barrel is connected to the input end of the vacuum loading bin through a vacuum suction pipe; the vacuum loader provides adsorption power for the vacuum loading bin; the output end of the storage tank and the input end of the mixer are connected through a first docking device; the output end of the mixer is connected to the input end of the second vibrating screen through a second docking device.

[0009] Furthermore, the barrel is connected with a breathing valve.

[0010] Furthermore, a proportional regulating valve is provided at the output end of the storage tank.

[0011] Furthermore, a discharge valve is provided at the output end of the mixer.

[0012] Furthermore, the discharge valve is a pneumatic butterfly valve.

[0013] Furthermore, the first docking device and the second docking device are both automatic docking devices driven by servo motors.

[0014] Furthermore, the vacuum feeder is provided with a suction timing device; and the mixer is provided with a mixing timing device.

[0015] Furthermore, the vacuum loading bin, storage tank, first docking device, mixer, second docking device, and second vibrating screen are coaxially arranged in the vertical direction.

[0016] Furthermore, the vacuum loader is arranged on one side of the vacuum loading bin.

[0017] Furthermore, the vacuum loading bin is sealed and connected to the input end of the storage tank.

[0018] Compared with the prior art, one or more of the above technical solutions can achieve at least one of the following beneficial effects:

[0019] This powder conveying system rationally arranges various powder processing equipment, sets docking devices and valves between various processing equipment, and installs automatic timing devices on the processing equipment. This can realize automatic powder conveying, reduce on-site human intervention, avoid the generation of dust during transportation, and reduce the risk of powder contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 Schematic diagram of the powder conveying system of Example 1.

[0022] Figure 2 It is a schematic diagram of the layout of the powder conveying system of Example 1.

[0023] In the figure, 1. spray drying tower; 2. fine powder barrel; 3. coarse powder barrel; 4. breathing valve; 5. vacuum suction pipe; 6. vacuum loader; 7. vacuum loader bin; 8. storage tank; 9. proportional control valve; 10. first docking device; 11. mixer; 12. frequency conversion motor; 13. discharge valve; 14. second docking device; 15. coarse powder output end; 16. fine powder output end; 17. second vibrating screen; 18. first vibrating screen. 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 of 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] Example 1

[0026] like Figure 1 , Figure 2 As shown, this embodiment provides a powder conveying system, comprising a spray drying tower 1, a first vibrating screen 18, a vacuum loading bin 7, a storage tank 8, a mixer 11, and a second vibrating screen 17 connected in sequence. The output end of the first vibrating screen 18 is connected to a barrel, and the output end of the barrel is connected to the input end of the vacuum loading bin 7 through a vacuum suction pipe 5; the vacuum loading bin 7 provides vacuum adsorption power through the vacuum loading machine 6; the output end of the storage tank 8 and the input end of the mixer 11 are connected through a first docking device 10; the output end of the mixer 11 and the input end of the second vibrating screen 17 are connected through a second docking device 14.

[0027] In this solution, the spray drying tower 1 is configured to dry the raw material powder; the first vibrating screen 18 is configured to screen the dried powder into coarse powder and fine powder; the vacuum feeder 6 is configured to provide vacuum adsorption power for the screened powder; the vacuum feeding bin 7 is configured to accommodate the absorbed powder; the storage tank 8 is configured to transfer the powder transported by the vacuum feeding bin 7; the mixer 11 is configured to stir and mix the powder transported by the storage tank 8; the first docking device 10 is configured to dock the storage tank 8 with the mixer 11; the second vibrating screen 17 is configured to screen the powder output by the mixer 11; the second docking device 14 is configured to dock the output end of the mixer 11 with the second vibrating screen 17.

[0028] As a specific embodiment, the barrel includes a fine powder barrel 2 and a coarse powder barrel 3, which are respectively connected to the fine powder output end 16 and the coarse powder output end 15 of the first vibrating screen 18. As a preferred embodiment, the fine powder barrel 2 and the coarse powder barrel 3 are both connected to a breathing valve 4, and the breathing valve 4 in this embodiment adopts a titanium alloy breathing valve.

[0029] A proportional regulating valve 9 is provided at the output end of the storage tank 8 .

[0030] The output end of the mixer 11 is provided with a discharge valve 13. The discharge valve 13 is a pneumatic butterfly valve.

[0031] As a preferred embodiment, the first docking device 10 and the second docking device 14 are both automatic docking devices driven by servo motors.

[0032] The vacuum feeder 6 is provided with a suction timing device, which can set the suction time. The mixer is provided with a mixing timing device, which can set the mixing time.

[0033] like Figure 2As shown, in the specific implementation process, the vacuum loading bin 7, the storage tank 8, the first docking device 10, the mixer 11, the second docking device 14, and the second vibrating screen 17 are coaxially arranged in sequence along the vertical direction; the vacuum loader 6 is arranged on one side of the vacuum loading bin 7 to provide vacuum adsorption power nearby; the vacuum loading bin 7 is sealed and connected to the input end of the storage tank 8.

[0034] The powder conveying principle of this embodiment is:

[0035] The spray drying tower 1 dries the raw powder, and the treated powder is screened for the first time through the first vibrating screen 18. Unqualified coarse powder is output to the coarse powder barrel 3 through the coarse powder output end 15 of the first vibrating screen 18, and qualified fine powder is output to the fine powder barrel 2 through the fine powder output end 16 of the first vibrating screen 18. During this period, the breathing valve 4 ensures that the vacuum loading bin 7 is always under a slight positive pressure to protect the powder from contamination. The fine powder in the fine powder barrel 2 is sucked through the vacuum suction pipe 5, and the fine powder is sucked into the vacuum loading bin 7, and then transported to the storage tank 8 by the vacuum loading bin 7. The servo motor drives the The first docking device 10 connects the storage tank 8 with the mixer 11; by adjusting the proportional valve 9, the powder in the storage tank 8 is input into the mixer 11 at a controllable flow rate, and the mixer 11 is controlled by the variable frequency motor 12 to perform the mixing action; after the mixing is completed, the servo motor drives the second docking device 14 to connect the mixer 11 with the second vibrating screen 17, and after opening the discharge valve 13, the powder enters the second vibrating screen 17 for screening; after the screening is completed, it is output from the coarse powder output end 15 and the fine powder output end 16 according to the screening situation, and loaded by the first mobile material car and the second mobile material car respectively. At this point, the powder transportation of screening and mixing is completed.

[0036] Obviously, the above embodiments are merely examples for clearly illustrating the technical solution of the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection of the claims of the utility model.

Claims

1. A powder conveying system, characterized in that: The system includes a vacuum loader and a spray drying tower, a first vibrating screen, a vacuum loading bin, a storage tank, a mixer, and a second vibrating screen connected in sequence; the output end of the first vibrating screen is connected to a barrel, and the output end of the barrel is connected to the input end of the vacuum loading bin through a vacuum suction pipe; the vacuum loader provides adsorption power for the vacuum loading bin; the output end of the storage tank and the input end of the mixer are connected through a first docking device; the output end of the mixer is connected to the input end of the second vibrating screen through a second docking device.

2. The powder conveying system according to claim 1, characterized in that: The barrel is connected with a breathing valve.

3. The powder conveying system according to claim 1, characterized in that: A proportional regulating valve is provided at the output end of the storage tank.

4. The powder conveying system according to claim 1, characterized in that: The output end of the mixer is provided with a discharge valve.

5. The powder conveying system according to claim 4, characterized in that: The discharge valve is a pneumatic butterfly valve.

6. The powder conveying system according to claim 1, characterized in that: The first docking device and the second docking device are both automatic docking devices driven by servo motors.

7. The powder conveying system according to claim 1, characterized in that: The vacuum feeder is provided with a suction timing device; the mixer is provided with a mixing timing device.

8. The powder conveying system according to any one of claims 1 to 7, characterized in that: The vacuum loading bin, storage tank, first docking device, mixer, second docking device and second vibrating screen are coaxially arranged in the vertical direction.

9. The powder conveying system according to claim 8, characterized in that: The vacuum loading machine is arranged on one side of the vacuum loading bin.

10. The powder conveying system according to claim 8, characterized in that: The vacuum loading bin is sealedly connected to the input end of the storage tank.

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