Pipeline iron powder purging device

Abstract

The utility model relates to a pipeline iron powder purging device which comprises an iron powder recovery pipe, high-pressure gas output units, a ball valve and a pressure pipeline, the output end of the iron powder recovery pipe is communicated with an external stock bin, a plurality of high-pressure gas output units are arranged on the iron powder recovery pipe side by side, and the pressure pipeline comprises a main pipeline and a plurality of branch pipelines. The input end of a main pipeline of the pressure pipeline is communicated with an external air compressor, the output end of the main pipeline is communicated with a plurality of branch pipelines, the output ends of the branch pipelines are communicated with the input ends of the high-pressure gas output units, and ball valves are arranged on the iron powder recovery pipe and located between the output ends of every two adjacent high-pressure gas output units. High-pressure gas is injected into the iron powder recovery pipe through the high-pressure gas output unit, the high-pressure gas on the inner side of the high-pressure pipeline is suddenly released from the pressure release valve to form high-speed airflow, iron powder in the pipeline can be powerfully purged, and blockage of the iron powder in the pipeline is effectively prevented and removed.

Description

Technical Field

[0001] This utility model relates to the field of iron powder recovery technology, specifically to a pipeline iron powder purging device. Background Technology

[0002] The iron oxide powder packaging machine is designed to package iron oxide powder from two furnace hoppers separately. To reduce iron oxide powder spillage during packaging, the machine is equipped with a powder suction pipe. This pipe connects to the hopper (under negative pressure) to draw the iron oxide powder back into the hopper. However, iron oxide powder frequently clogs the suction pipe, causing iron oxide powder to overflow during packaging, leading to environmental pollution and abnormal machine shutdowns. When the suction pipe becomes clogged, maintenance and disassembly are required for unblocking. Since the pipe is long, unblocking is difficult, and maintenance is frequent, purging the pipe is necessary. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a pipe iron powder purging device in response to the above-mentioned shortcomings.

[0004] To solve the above technical problems, the present invention adopts the following technical solution:

[0005] A pipeline iron powder purging device includes an iron powder recovery pipe, a high-pressure gas output unit, a ball valve, and a pressure pipeline. The output end of the iron powder recovery pipe is connected to an external silo. Multiple high-pressure gas output units are arranged side by side on the iron powder recovery pipe. The pressure pipeline includes a main pipeline and multiple branch pipelines. The input end of the main pipeline is connected to an external air compressor. The output end of the main pipeline is connected to multiple branch pipelines. The output ends of the multiple branch pipelines are respectively connected to the input ends of the high-pressure gas output units. A ball valve is installed on the iron powder recovery pipe between the output ends of two adjacent high-pressure gas output units.

[0006] The high-pressure gas output unit includes a high-pressure pipeline, a one-way gas valve, and a pressure relief valve. The input and output ends of the high-pressure pipeline are respectively equipped with a one-way gas valve and a pressure relief valve. The one-way gas valve and the pressure relief valve are used to form a one-way flow pipeline with the high-pressure pipeline. The input end of each one-way gas valve is connected to the output end of a branch pipeline, and the output end of the pressure relief valve is connected to an iron powder recovery pipe.

[0007] Furthermore, the opening pressure of the pressure relief valve is greater than the compressed air pressure delivered by the external air compressor.

[0008] Furthermore, a multi-channel valve is installed between the main pipeline and the multiple branch pipelines. The input end of the multi-channel valve is connected to the main pipeline, and the output end of each multi-channel valve is connected to the input end of a branch pipeline. The multi-channel valve can independently adjust the closing or opening of each branch pipeline.

[0009] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0010] This invention injects high-pressure gas into the iron powder recovery pipe through a high-pressure gas output unit. The high-pressure gas inside the pipe is suddenly released from the pressure relief valve, forming a high-speed airflow that powerfully sweeps away the iron powder inside the pipe. This effectively prevents and removes blockages caused by iron powder, avoiding the spillage of iron oxide powder during packaging and reducing the risk of environmental pollution and abnormal shutdowns. Multiple high-pressure gas output units can be activated sequentially from the input end to the output end of the iron powder recovery pipe, achieving segmented purging. Each subsequent high-pressure gas output unit starts after the previous one has been shut down, making the purging process more comprehensive, efficient, and orderly.

[0011] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the connection structure of this utility model.

[0013] The attached diagram lists the components represented by each number as follows:

[0014] 1. Iron powder recovery pipe; 2. Ball valve; 3. Main pipeline; 4. Branch pipeline; 5. High-pressure pipeline; 6. Check valve; 7. Pressure relief valve; 8. Multi-channel valve. Detailed Implementation

[0015] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0016] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] like Figure 1As shown, a pipeline iron powder purging device includes an iron powder recovery pipe 1, a high-pressure gas output unit, a ball valve 2, and a pressure pipeline. The output end of the iron powder recovery pipe 1 is connected to an external silo. Multiple high-pressure gas output units are arranged side by side on the iron powder recovery pipe 1. The pressure pipeline includes a main pipeline 3 and multiple branch pipelines 4. The input end of the main pipeline 3 is connected to an external air compressor. The output end of the main pipeline 3 is connected to multiple branch pipelines 4. The output ends of the multiple branch pipelines 4 are respectively connected to the input ends of the high-pressure gas output units. A ball valve 2 is provided on the iron powder recovery pipe 1 between the output ends of two adjacent high-pressure gas output units.

[0018] The high-pressure gas output unit includes a high-pressure pipeline 5, a one-way gas valve 6, and a pressure relief valve 7. The input and output ends of the high-pressure pipeline 5 are respectively equipped with a one-way gas valve 6 and a pressure relief valve 7. The one-way gas valve 6 and the pressure relief valve 7 are used to form a one-way flow pipeline with the high-pressure pipeline 5. The input end of each one-way gas valve 6 is connected to the output end of a branch pipeline 4, and the output end of the pressure relief valve 7 is connected to the iron powder recovery pipe 1.

[0019] In one implementation, the opening pressure of the pressure relief valve 7 is greater than the compressed air pressure delivered by the external air compressor.

[0020] In one implementation, a multi-channel valve 8 is provided between the main pipe 3 and the multiple branch pipes 4. The input end of the multi-channel valve 8 is connected to the main pipe 3, and the output end of each branch pipe 4 is connected to the input end of one branch pipe 4. The multi-channel valve 8 can independently adjust the closing or opening of each branch pipe 4.

[0021] In this invention, the ball valve 2 is initially in a fully open state.

[0022] The working process of this utility model is as follows: The external air compressor is turned on, supplying high-pressure gas into the main pipeline 3. As needed, the high-pressure gas is distributed to various branch pipelines 4 by controlling the multi-channel valve 8. First, the high-pressure gas is delivered to multiple high-pressure gas output units via the multi-channel valve 8. Before each high-pressure gas output unit is started, its corresponding ball valve 2 is closed, allowing the high-pressure gas to flow only to the output end of the iron powder recovery pipe 1. The high-pressure gas enters the iron powder recovery pipe 1 through the pressure relief valve 7, purging the iron powder within the pipe. After the first high-pressure gas output unit completes purging, the corresponding channel valve for the first high-pressure gas unit is closed, the corresponding ball valve 2 is opened, and the adjacent second high-pressure gas output unit is started, purging in sections from the input end to the output end of the iron powder recovery pipe 1. After one high-pressure gas output unit completes purging, the input ball valve 2 of the next high-pressure gas output unit is closed, and purging of the next section of the pipeline continues until the entire section of the pipeline is purged. After purging is complete, all high-pressure gas output units and the air compressor are shut down.

[0023] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A pipe iron powder purging device, characterized in that, The device includes an iron powder recovery pipe (1), a high-pressure gas output unit, a ball valve (2), and a pressure pipeline. The output end of the iron powder recovery pipe (1) is connected to an external silo. Multiple high-pressure gas output units are arranged side by side on the iron powder recovery pipe (1). The pressure pipeline includes a main pipeline (3) and multiple branch pipelines (4). The input end of the main pipeline (3) is connected to an external air compressor. The output end of the main pipeline (3) is connected to multiple branch pipelines (4). The output ends of the multiple branch pipelines (4) are respectively connected to the input ends of the high-pressure gas output units. A ball valve (2) is provided between the output ends of two adjacent high-pressure gas output units on the iron powder recovery pipe (1). The high-pressure gas output unit includes a high-pressure pipeline (5), a one-way valve (6), and a pressure relief valve (7). The input and output ends of the high-pressure pipeline (5) are respectively equipped with a one-way valve (6) and a pressure relief valve (7). The one-way valve (6) and the pressure relief valve (7) are used to form a one-way flow pipeline with the high-pressure pipeline (5). The input end of each one-way valve (6) is connected to the output end of a branch pipeline (4), and the output end of the pressure relief valve (7) is connected to the iron powder recovery pipe (1).

2. The pipe iron powder purging device according to claim 1, characterized in that, The opening pressure of the pressure relief valve (7) is greater than the compressed air pressure delivered by the external air compressor.

3. The pipe iron powder purging device according to claim 1, characterized in that, A multi-channel valve (8) is provided between the main pipe (3) and multiple branch pipes (4). The input end of the multi-channel valve (8) is connected to the main pipe (3), and each output end is connected to the input end of a branch pipe (4). The multi-channel valve (8) can independently adjust the closing or opening of each branch pipe (4).

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