Dust recovery device for acid regeneration iron powder packaging room

Abstract

The utility model relates to a dust recovery device for an acid regeneration iron powder packaging room, which comprises an iron powder bin, a discharge pipe arranged at the bottom of the iron powder bin, a return pipe arranged at the top of the iron powder bin and connected to the bottom of a roasting furnace, and an induced draft fan mounted on the return pipe and used for conveying iron powder at the bottom of the roasting furnace back into the iron powder bin along the return pipe. A dust collecting cover is arranged at a pipe opening of the discharging pipe, the side wall of the dust collecting cover is connected with a section of conveying pipeline, the conveying pipeline is connected with a section of drainage pipe, the drainage pipe is connected with a section of extension pipe through an elbow, the extension pipe is in butt joint communication with the material returning pipe, and the end part of the extension pipe is closed; according to the utility model, the overflow amount of iron powder in the iron powder packaging process is reduced, so that the production is safe and stable; an induced draft fan of an original system is directly adopted as conveying power, and extra power is not needed.

Description

Technical Field

[0001] This utility model relates to the technical field of hydrochloric acid regeneration units, specifically a dust recovery device for an acid regeneration iron powder packaging room. Background Technology

[0002] Iron oxide powder, a byproduct of waste acid processing in acid regeneration units, is an economically viable industrial product. The iron oxide powder is mainly concentrated at the bottom of the roasting furnace. A negative pressure generated by an induced draft fan forces the powder through pipelines to an iron oxide silo, from which it is then discharged and packaged. During the packaging process, the fine particles of iron oxide powder are easily dispersed, causing environmental pollution, harming the health of packaging workers, and resulting in economic losses. Summary of the Invention

[0003] The main purpose of this utility model is to solve the problems existing in the prior art and provide a dust recovery device for the packaging room of acid-regenerated iron powder, so as to reduce the amount of iron powder spillage, reduce economic losses, and reduce pollution to the working environment.

[0004] The specific solution of this utility model is: a dust recovery device for an acid-regenerated iron powder packaging room, including an iron powder silo, a discharge pipe at the bottom of the iron powder silo, a return pipe at the top of the iron powder silo, the return pipe being connected to the bottom of the roasting furnace, an induced draft fan being installed on the return pipe, the induced draft fan being used to transport the iron powder at the bottom of the furnace back to the iron powder silo along the return pipe, a dust collection hood being installed at the opening of the discharge pipe, a conveying pipe being connected to the side wall of the dust collection hood, a diversion pipe being connected to the conveying pipe, a diversion pipe being connected to an extension pipe through an elbow, the extension pipe being connected to the return pipe, and the end of the extension pipe being closed.

[0005] Furthermore, the drainage pipe is equipped with a valve, which is used to regulate and control the negative pressure at the dust collection hood.

[0006] Furthermore, the dust collection hood is horn-shaped with an opening angle of 100°-150°, and the top of the dust collection hood is welded and fixed to the discharge pipe.

[0007] Furthermore, the valve is a gate valve.

[0008] Compared with the prior art, this utility model has the following advantages: it reduces the amount of iron powder spillage during the iron powder packaging process, making production safe and stable; it directly uses the original system's induced draft fan as the conveying power, without the need for additional power. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] In the diagram: 1. Iron powder silo; 2. Discharge pipe; 3. Return pipe; 4. Dust collection hood; 5. Conveying pipeline; 6. Drainage pipe; 7. Extension pipe; 8. Exhaust fan. Detailed Implementation

[0011] See Figure 1 This embodiment is a dust recovery device for an acid-regenerated iron powder packaging room, including an iron powder silo 1, a discharge pipe 2 at the bottom of the iron powder silo 1, and a return pipe 3 at the top of the iron powder silo 1. The return pipe 3 is connected to the bottom of the roasting furnace, and an induced draft fan 8 is installed on the return pipe 3. The induced draft fan 8 is used to transport the iron powder at the bottom of the furnace back to the iron powder silo 1 along the return pipe 3. A dust collection hood 4 is installed at the opening of the discharge pipe 2. A section of conveying pipe 5 is connected to the side wall of the dust collection hood 4. A section of diversion pipe 6 is connected to the conveying pipe 5. The diversion pipe 6 is connected to an extension pipe 7 through an elbow. The extension pipe 7 is connected to the return pipe 3 and the end of the extension pipe 7 is closed.

[0012] Furthermore, the drainage pipe 6 is equipped with a valve, which is used to regulate and control the negative pressure at the dust collection hood 4.

[0013] Furthermore, the dust collection hood 4 is horn-shaped with an opening angle of 100°-150°, and the top of the dust collection hood 4 is welded and fixed to the discharge pipe 2.

[0014] Furthermore, the valve is a gate valve.

[0015] The working principle of this utility model is as follows: During the iron powder packaging process, the blower 8 works simultaneously, and negative pressure is generated in the dust collection hood 4, conveying pipe 5, diversion pipe 6, and extension pipe 7, thereby sucking the iron powder overflowing from the discharge pipe 2 into the conveying pipe 5. Then, after passing through the diversion pipe 6 and extension pipe 7, it flows into the return pipe and is finally transported to the iron powder silo 1. This not only reduces the pollution of the environment caused by iron powder overflow, but also increases the amount of iron powder recovered, thereby improving economic efficiency.

Claims

1. An acid regenerated iron powder inter-packhouse dust recovery apparatus comprising an iron powder bin, a discharge pipe being provided at the bottom of the iron powder bin, a return pipe being provided at the top of the iron powder bin, the return pipe being connected to the bottom of a roasting furnace, a fan being provided on the return pipe, the fan being used to transport the iron powder at the bottom of the furnace along the return pipe back into the iron powder bin, characterized in that: The dust collecting cover is provided at the nozzle of the feeding pipe, the side wall of the dust collecting cover is connected with a conveying pipe, the conveying pipe is connected with a drainage pipe, the drainage pipe is connected with an extension pipe through an elbow, the extension pipe is connected with the return pipe in communication, and the end of the extension pipe is closed. ​ 2. The apparatus of claim 1 wherein: A valve is arranged on the drainage pipe, and the valve is used for adjusting and controlling the negative pressure at the dust collecting cover.

3. The apparatus of claim 1 wherein: the acid regenerating iron powder packaging room dust recovery device is characterized by: The dust collecting cover is in the shape of a horn, the opening angle of the horn is 100-150°, and the top end of the dust collecting cover is welded with the feeding pipe.

4. The apparatus of claim 2 wherein: 5 The valve is a gate valve.

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