Impurity removal agent feeding device of lead bullion refining furnace

Abstract

The utility model provides a lead bullion refining furnace impurity removal agent feeding device which comprises a feeding pipe and a storage tank arranged above the feeding pipe, one end of the feeding pipe is provided with an air inlet pipe, the other end of the feeding pipe is provided with a feeding part which is larger than a half circle structure, a one-way valve is arranged at the center position of the feeding pipe, and the one-way valve is connected with the storage tank. A quantitative pipe connected with an air inlet pipe is installed at the bottom end of the storage tank, a rotating part is rotationally clamped in the feeding part, the angle of an air outlet can be adjusted through rotation of the rotating part in the feeding part, the device is suitable for feeding of powdery impurity removing agents at different angles, and air is conveyed into a feeding pipe through a micro air pump at the bottom end of a handle and the air inlet pipe. The powder impurity removal agent falling in the quantitative pipe is blown out from the air outlet through air, the angle of the feeding pipe in the agent adding opening of the heating pool is adjusted through the handle in the blowing-out process, the device is suitable for conveying the impurity removal agent to different positions in the heating pool, and the impurity removal agent accumulation condition is avoided.

Description

Technical Field

[0001] This utility model relates to the field of powdered impurity removal agent feeding technology, and in particular to a crude lead refining furnace impurity removal agent feeding device. Background Technology

[0002] Currently, most of the world's crude lead smelting utilizes a preliminary pyrometallurgical refining process followed by electrolytic refining. Almost all crude lead produced in my country is refined using this process. The crude lead produced from smelting typically has a lead content of 90%–98%, containing precious metals such as Ag and Au, and impurities such as Cu, As, Sb, Sn, Bi, and S. The Cu content is 0.1%–5%. Due to the excessively high impurity content, it cannot be directly refined through electrolytic refining. Electrolytic refining requires the lead anode plate to contain Pb ≥ 98.5% (except for lead-antimony alloys), Cu ≤ 0.06%, As ≤ 0.4%, and Sb controlled at 0.4%–0.8%. The purpose of pyrometallurgical refining is to remove some impurities from the smelted crude lead, enabling it to meet the quality requirements for lead anode plates used in electrolytic refining.

[0003] Copper removal is the first step in crude lead refining. By adding a sulfiding agent (such as lead sulfide), copper is formed into copper sulfide slag, which further improves the efficiency of copper removal. Alkaline refining uses sodium nitrate (NaNO3) as an oxidant to oxidize impurities into sodium salt slag, which is then separated from the lead liquid.

[0004] Chinese patent CN213273724U discloses a continuous crude lead refining furnace. By rotating the baffle 15, the horizontal height of the baffle 15 can be adjusted to control whether the flow port is opened or closed, thereby conveniently controlling whether the heating pool 20 and the high-temperature pool 30 are connected. When the baffle 15 extends to close the flow port, crude lead liquid is introduced into the heating pool 20 through the liquid inlet 16 provided on the side of the furnace body 10. The heating pool 20 is initially heated by the first burner 13 to maintain the temperature in the heating pool 20 at 340°C. Sulfur is added to the heating pool 20 through the additive port, which enables the crude lead liquid to partially separate impurities.

[0005] However, the powdered impurity remover in this technical solution is added to the heating tank entirely through the dosing port using a container. The impurity remover will accumulate in the heating tank below the dosing port. After addition, the agent needs to be stirred. Furthermore, each addition of the impurity remover requires weighing to achieve quantitative addition, resulting in low addition efficiency. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a feeding device for a crude lead refining furnace to remove impurities. This device achieves quantitative distribution of the reagent and uniform air delivery through the combination of an air inlet pipe and a feed pipe structure with a metering pipe structure, thus solving the problem of instantaneous dumping of the remover and the need for quantitative weighing.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for a crude lead refining furnace impurity removal agent, comprising a feeding pipe and a storage tank disposed above the feeding pipe, wherein an air inlet pipe is installed at one end of the feeding pipe, and a feeding part with a structure larger than half a circle is provided at the other end of the feeding pipe, wherein a one-way valve is installed at the center of the feeding pipe, and a metering pipe connected to the air inlet pipe is installed at the bottom of the storage tank, and a rotating component is rotatably engaged in the feeding part.

[0008] Preferably, handles are fixed on both sides of the bottom end face of the feed tube, and the bottom ends of the two handles are respectively provided with a first groove and a second groove.

[0009] Preferably, a miniature air pump and a storage battery are respectively embedded and fixed in the first groove and the second groove, and the air delivery end of the miniature air pump is connected to the air inlet pipe.

[0010] Preferably, the side wall of the rotating component has an air outlet, and the outer wall of the rotating component is bonded and fixed with an anti-slip protrusion.

[0011] Preferably, the top of the storage tank is threaded with a top cover, and the end of the storage tank near the feed pipe is fixed with an installation pipe.

[0012] Preferably, a control valve is installed on both of the mounting pipes, and threaded connections are provided at the adjacent ends of the two mounting pipes.

[0013] Preferably, the metering tube is connected to the air outlet, and both ends of the metering tube are threaded onto two threaded connection parts.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) This utility model has a rotating part that is rotatably connected in the feeding part of the feeding pipe. The rotating part can adjust the angle of the air outlet by rotating in the feeding part. It is suitable for feeding powdered impurity remover at different angles. Air is delivered into the feeding pipe through the micro air pump and air inlet pipe at the bottom of the handle. The air causes the powdered impurity remover that falls in the metering tube to be blown out from the air outlet. During the blowing process, the handle can be used to adjust the angle of the feeding pipe in the heating pool addition port. It is suitable for delivering impurity remover to different positions in the heating pool and avoids the accumulation of impurity remover.

[0016] (2) This utility model has a metering tube fixed between two installation tubes. The control valve on the top installation tube of the feed tube is closed, and the control valve at the bottom of the storage tank is opened. The agent in the storage tank slides down into the metering tube and the control valve at the bottom of the storage tank is closed. When adding the impurity remover, the control valve at the top of the feed tube and the micro air pump are opened to feed air and impurity remover into the crude lead refining furnace in a metered manner. The metering tube of different sizes can be replaced by the threaded connection part. It is suitable for adjusting different amounts of impurity remover. There is no need to weigh the impurity remover, which improves the convenience of metering the impurity remover.

[0017] In summary, this invention has the advantages of avoiding the accumulation of impurity removal agents and quantitative delivery. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model from another angle;

[0020] Figure 3 This is a schematic cross-sectional view of the present invention.

[0021] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Feed pipe; 2. Air inlet pipe; 3. Miniature air pump; 4. Handle; 5. Feeding section; 6. Rotating component; 7. Storage tank; 8. Top cover; 9. Metering tube; 10. Mounting tube; 11. One-way valve; 12. Battery; 13. Air outlet; 14. Anti-slip convex plate; 15. First groove; 16. Second groove; 17. Control valve; 18. Threaded connection. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] Example 1

[0026] like Figure 1 and Figure 2 As shown, this embodiment provides a crude lead refining furnace impurity removal agent feeding device, including a feed pipe 1 and a storage tank 7 disposed above the feed pipe 1. One end of the feed pipe 1 is equipped with an air inlet pipe 2, and the other end of the feed pipe 1 is provided with a feeding part 5 with a structure larger than half a circle. A one-way valve 11 is installed at the center of the feed pipe 1. A metering pipe 9 connected to the air inlet pipe 2 is installed at the bottom of the storage tank 7. A rotating component 6 is rotatably engaged in the feeding part 5.

[0027] Handles 4 are fixed on both sides of the bottom end of the feed pipe 1. The bottom ends of the two handles 4 are respectively provided with a first groove 15 and a second groove 16. A micro air pump 3 and a storage battery 12 are respectively embedded in the first groove 15 and the second groove 16. The air supply end of the micro air pump 3 is connected to the air inlet pipe 2. The storage battery 12 supplies power to the micro air pump 3. A button for controlling the micro air pump 3 is installed on the handle 4. The rotating part 6 can adjust the angle of the air outlet 13 by rotating in the feed part 5. It is suitable for feeding powdered impurity remover at different angles. Air is delivered to the feed pipe 1 through the micro air pump 3 at the bottom end of the handle 4 and the air inlet pipe 2. The air causes the powdered impurity remover that falls from the metering tube 9 to be blown out from the air outlet 13. During the blowing process, the handle 4 adjusts the angle of the feed pipe 1 in the addition port of the heating pool. It is suitable for delivering impurity remover to different positions in the heating pool and avoids the accumulation of impurity remover.

[0028] Example 2

[0029] like Figure 3 and Figure 4As shown, components that are the same as or corresponding to those in Embodiment 1 are marked with the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 will be described below. The difference between Embodiment 2 and Embodiment 1 is that: the side wall of the rotating component 6 is provided with an air outlet 13, and the outer wall of the rotating component 6 is bonded and fixed with an anti-slip protrusion 14. The rotating component 6 is dampedly connected to the inner wall of the feeding part 5, so that the rotating component 6 can remain fixed in the feeding part 5 after rotation. At the same time, during the rotation of the rotating component 6, the anti-slip protrusion 14 on its outer wall abuts against the feeding part 5 to avoid excessive rotation. The top of the storage tank 7 is threaded with a top cover 8, and the end of the storage tank 7 near the feeding pipe 1 is fixed with an installation pipe 10. A control valve 17 is installed on both installation pipes 10, and the end of both installation pipes 10 near each other is provided with The metering tube 9 is connected to the air outlet 13 via a threaded connection 18. Both ends of the metering tube 9 are threaded onto the two threaded connection parts 18. The control valve 17 on the top mounting pipe 10 of the feed pipe 1 is closed, and the control valve 17 at the bottom of the storage tank 7 is opened. The reagent in the storage tank 7 slides down into the metering tube 9, and the control valve 17 at the bottom of the storage tank 7 is closed. When adding the impurity remover, the control valve 17 at the top of the feed pipe 1 and the micro air pump 3 are opened to feed air and impurity remover into the crude lead refining furnace in a metered manner. By unscrewing the metering tube 9 from the threaded connection part 18 and replacing it with a metering tube 9 of a different size, it is suitable for adjusting different amounts of impurity remover.

[0030] Work steps

[0031] Step 1: When using the device, hold the anti-slip protrusion 14 to rotate the rotating part 6 in the feed section 5 to adjust the angle of the air outlet 13. This is suitable for feeding powdered cleaning agents at different angles. Close the control valve 17 on the top mounting pipe 10 of the feed pipe 1 and open the control valve 17 at the bottom of the storage tank 7. The agent in the storage tank 7 slides down into the metering tube 9. Close the control valve 17 at the bottom of the storage tank 7. When adding cleaning agents, open the control valve 17 at the top of the feed pipe 1 and the micro air pump 3 to feed air and cleaning agents into the crude lead refining furnace in a metered manner. The air causes the powdered cleaning agents that fall from the metering tube 9 to be blown out from the air outlet 13. During the blowing process, use the handle 4 to adjust the angle of the feed pipe 1 in the heating pool addition port. This is suitable for conveying cleaning agents to different positions in the heating pool and avoids the accumulation of cleaning agents.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lead roughening kettle tramp-remover feed device comprising a feed pipe and a storage tank disposed above the feed pipe, characterized in that, An air inlet pipe is installed at one end of the feed pipe, and a feed section with a structure larger than half a circle is provided at the other end of the feed pipe. A one-way valve is installed at the center of the feed pipe. A metering tube connected to the air inlet pipe is installed at the bottom of the storage tank. A rotating component is rotatably engaged in the feed section.

2. A tramp-iron feed device for a kettle according to claim 1, wherein, The bottom end of the feed tube is fixed with handles on both sides, and the bottom ends of the two handles are respectively provided with a first groove and a second groove.

3. A tramp-iron feed device for a kettle according to claim 2, wherein, A miniature air pump and a storage battery are respectively embedded in the first groove and the second groove, and the air delivery end of the miniature air pump is connected to the air inlet pipe.

4. A tramp-iron feed device for a kettle according to claim 1, wherein, The rotating component has an air vent on its side wall, and an anti-slip protrusion is bonded and fixed to the outer wall of the rotating component.

5. A tramp-iron feed device for a kettle according to claim 1, wherein, The storage tank is threaded with a top cover, and an installation pipe is fixed to the end of the storage tank that is close to the feed pipe.

6. A tramp-iron feed device for a kettle according to claim 5, wherein, Both mounting pipes are equipped with control valves, and the two mounting pipes have threaded connections at their adjacent ends.

7. A tramp-iron feed device for a kettle according to claim 1, wherein, The metering tube is connected to the air outlet, and both ends of the metering tube are threaded onto two threaded connection parts.

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