Wear-resistant powder conveying device

Abstract

According to the technical scheme, the wear-resistant powder conveying device comprises a powder tank car and a feeding pipe, a powder outlet of the powder tank car is connected with the feeding pipe, the feeding pipe is fixedly connected with a sealing plate, the sealing plate is fixedly connected with a concentric reducing pipe, the concentric reducing pipe is fixedly connected with a discharging pipe, and the discharging pipe is connected with a storage tank. An air inlet pipe is arranged on the side portion of the concentric reducing pipe and connected with an air source. The device has the beneficial effects that nitrogen is helically boosted to spirally rise from the interior of the reducing pipe through the spiral, the abrasion frequency between powder is increased, the abrasion degree of the powder to the pipeline is effectively reduced, compared with a traditional powder conveying process, the service life of the powder conveying pipeline can be effectively prolonged, and the device has the advantages of being low in manufacturing cost and easy to replace after being damaged.

Description

Technical Field

[0001] The invention relates to the technical field of chemical product transportation devices, and in particular to a wear-resistant powder material conveying device. Background Art

[0002] In modern industrial production processes, although pneumatic conveying technology for powders is widely used due to its advantages such as high flexibility and easy operation, there are still many challenges in practical applications. Especially in terms of conveying efficiency, traditional pneumatic conveying methods often fail to reach the ideal level, which not only limits the improvement of production efficiency, but also increases energy consumption costs. In addition, due to the frequent contact between powders and the inner wall of the pipeline under high-speed flow, pipeline blockage is likely to occur, seriously affecting the continuity and stability of the production line. What's more serious is that this strong scouring effect will accelerate the wear of the pipeline material, and long-term use may cause pipeline perforation, thereby causing material leakage and posing a hidden danger to production safety. Summary of the invention

[0003] In view of the problems in the above-mentioned prior art, the present invention provides a wear-resistant powder conveying device, and its technical solution is: it includes a powder tank truck and a feed pipe, the powder outlet of the powder tank truck is connected to the feed pipe, the feed pipe is fixedly connected to a closing plate, the closing plate is fixedly connected to a concentric reducer, the concentric reducer is fixedly connected to a discharge pipe, the discharge pipe is connected to a storage tank, and an air intake pipe is arranged on the side of the concentric reducer, and the air intake pipe is connected to an air source.

[0004] As a preferred solution, the air inlet pipe is arranged in the tangential direction of the concentric reducer.

[0005] As a preferred solution, the distance between the feed pipe and the discharge pipe is 20-50 mm.

[0006] As a preferred solution, the closing plate is fixedly connected to the large diameter end of the concentric reducer, and the small diameter end of the concentric reducer is fixedly connected to the discharge pipe.

[0007] As a preferred solution, the powder outlet of the powder tank truck is fixedly connected to the feed pipe via a first connecting flange.

[0008] As a preferred solution, the discharge pipe is fixedly connected to the storage tank via a second connecting flange.

[0009] As a preferred solution, the air inlet pipe is fixedly connected to the air source via a third connecting flange.

[0010] As a preferred solution, the gas pressure supplied by the gas source is 0.3-0.7Mpa.

[0011] As a preferred solution, the diameter of the large diameter end of the concentric reducer is 400-800 mm, and the diameter of the small diameter end is 100-200 mm.

[0012] Beneficial effects of the present invention: The device uses a spiral to propel nitrogen up from the reducer, increasing the frequency of wear between powders and effectively reducing the degree of wear on the pipeline by powders. Compared with traditional powder conveying processes, it can effectively extend the service life of the powder conveying pipeline, and has the characteristics of low cost and easy replacement when damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a top view of the concentric reducer in the present invention.

[0015] In the figure: 1. concentric reducer; 2. air source; 3. air inlet pipe; 4. first connecting flange; 5. closing plate; 6. powder tank truck; 7. feed pipe; 8. second connecting flange; 9. discharge pipe; 10. third connecting flange; 11. storage tank. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below based on the accompanying drawings and specific embodiments.

[0017] Example like Figure 1-2 A wear-resistant powder conveying device shown includes a powder tanker 6 and a feed pipe 7, the powder outlet of the powder tanker 6 is connected to the feed pipe 7, the feed pipe 7 is fixedly connected to the closing plate 5, the closing plate 5 is fixedly connected to the concentric reducer 1, the concentric reducer 1 is fixedly connected to the discharge pipe 9, the discharge pipe 9 is connected to the storage tank 11, and an air intake pipe 3 is arranged on the side of the concentric reducer 1, and the air intake pipe 3 is connected to the air source 2.

[0018] Furthermore, the air inlet pipe 3 is arranged in the tangential direction of the concentric reducer 1, so that the booster airflow rises in a spiral along the inner wall when entering the concentric reducer 1.

[0019] Furthermore, the distance between the feed pipe 7 and the discharge pipe 9 is 20-50 mm, and the appropriate spacing ensures that the powder will not block the pipe opening.

[0020] Furthermore, the closing plate 5 is fixedly connected to the large diameter end of the concentric reducer 1 , and the small diameter end of the concentric reducer 1 is fixedly connected to the discharge pipe 9 .

[0021] Furthermore, the powder outlet of the powder tanker 6 is fixedly connected to the feed pipe 7 via the first connecting flange 4 .

[0022] Furthermore, the discharge pipe 9 is fixedly connected to the storage tank 11 via a second connecting flange 8 .

[0023] Furthermore, the air inlet pipe 3 is fixedly connected to the air source 2 via a third connecting flange 10 .

[0024] Furthermore, the gas pressure supplied by the gas source 2 is 0.3-0.7Mpa.

[0025] Furthermore, the diameter of the large diameter end of the concentric reducer 1 is 400-800 mm, and the diameter of the small diameter end is 100-200 mm.

[0026] The above-mentioned device is adopted, in which the distance between the feed pipe 7 and the discharge pipe 9 is 30 mm, the gas pressure supplied by the gas source 2 is 0.3Mpa, the diameter of the large diameter end of the concentric reducer 1 is 380 mm, and the diameter of the small diameter end is 168 mm. The operation process is as follows: the booster nitrogen enters the internal cavity of the concentric reducer 1 from the tangential direction of the concentric reducer 1, and the nitrogen rises in a spiral manner in the cavity, and then enters the discharge pipe 9 from the gap between the feed pipe 7 and the discharge pipe 9. The powder is pumped into the feed pipe 7 through the powder tanker 6 and enters the cavity of the concentric reducer 1. Under the action of the booster nitrogen, the powder is output from the discharge pipe 9 to the storage tank 11. At the gap, the powder is concentrated to the center of the discharge pipe 9 under the centripetal force of the spiral rise of the booster nitrogen, so that friction is generated between the powders, the direct friction of the powder on the pipeline is reduced, and the occurrence of perforation caused by the wear of the pipeline by the powder is reduced, thereby effectively extending the service life of the pipeline.

Claims

1. A wear-resistant powder conveying device, comprising a powder tanker (6) and a feed pipe (7), wherein the powder outlet of the powder tanker (6) is connected to the feed pipe (7), characterized in that: The feed pipe (7) is fixedly connected to the closing plate (5), the closing plate (5) is fixedly connected to the concentric reducer (1), the concentric reducer (1) is fixedly connected to the discharge pipe (9), the discharge pipe (9) is connected to the storage tank (11), and an air intake pipe (3) is arranged on the side of the concentric reducer (1), and the air intake pipe (3) is connected to the air source (2).

2. A wear-resistant powder conveying device according to claim 1, characterized in that: The air inlet pipe (3) is arranged in the tangential direction of the concentric reducer (1).

3. The wear-resistant powder conveying device according to claim 1, characterized in that: The distance between the feed pipe (7) and the discharge pipe (9) is 20-50 mm.

4. The wear-resistant powder conveying device according to claim 1, characterized in that: The closing plate (5) is fixedly connected to the large diameter end of the concentric reducer (1), and the small diameter end of the concentric reducer (1) is fixedly connected to the discharge pipe (9).

5. The wear-resistant powder conveying device according to claim 1, characterized in that: The powder outlet of the powder tanker (6) is fixedly connected to the feed pipe (7) via a first connecting flange (4).

6. The wear-resistant powder conveying device according to claim 1, characterized in that: The discharge pipe (9) is fixedly connected to the storage tank (11) via a second connecting flange (8).

7. The wear-resistant powder conveying device according to claim 1, characterized in that: The air inlet pipe (3) is fixedly connected to the air source (2) via a third connecting flange (10).

8. The wear-resistant powder conveying device according to claim 1, characterized in that: The gas pressure supplied by the gas source (2) is 0.3-0.7 MPa.

9. The wear-resistant powder conveying device according to claim 1, characterized in that: The diameter of the large diameter end of the concentric reducer (1) is 400-800 mm, and the diameter of the small diameter end is 100-200 mm.

10. A transmission method for a wear-resistant powder conveying device according to any one of claims 1 to 9, characterized in that The following steps are involved: The boosting nitrogen outputted from the gas source (2) enters the internal cavity of the concentric reducer (1) from the tangential direction thereof, the nitrogen rises in a spiral manner in the cavity, and then enters the discharge pipe (9) from the gap between the feed pipe (7) and the discharge pipe (9), the powder is pumped into the feed pipe (7) through the powder tanker (6), enters the cavity of the concentric reducer (1), and is output from the discharge pipe (9) to the storage tank (11) under the action of the boosting nitrogen.

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