A lead-zinc ore slag acid leaching reaction device

Abstract

The utility model discloses a kind of lead-zinc ore slag acid leaching reaction devices, it is related to metallurgical equipment technical field;And the utility model includes reaction kettle, the bottom of reaction kettle is fixed with discharging device, the upper surface of reaction kettle is fixed with support frame, the upper surface of support frame is fixed with stirring device, the top side of reaction kettle is fixed with feeding device, discharging device includes discharge port, and discharge port is communicated with the bottom of reaction kettle, the bottom of discharge port is fixed with discharge pipe, the bottom of discharge pipe is fixed with discharging pipe, the side of discharging pipe is fixed with first base, the upper surface of first base is fixed with discharging motor, the output end of discharging motor extends to discharging pipe and is fixedly connected with transmission dragon, the device is filtered and transported structure by optimization stirring, improve acid leaching reaction efficiency, prevent slag deposition, and realize automatic continuous production, suitable for the efficient leaching treatment of lead-zinc ore slag.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical equipment technology, specifically to an acid leaching reaction device for lead-zinc slag. Background Technology

[0002] Currently, acid leaching is commonly used to recover metals from lead-zinc slag. This involves a chemical reaction between an acid solution and the metal components in the slag, causing the metals to enter the solution in ionic form for extraction in subsequent processes. Acid leaching typically requires a specific reaction apparatus to ensure sufficient reaction volume and efficiency. However, existing lead-zinc slag acid leaching reactors have several shortcomings in practical applications. For example, some apparatuses have inadequate feeding methods, easily leading to slag blockage at the feed inlet and affecting feeding efficiency. The simple design of the stirring mechanism often only partially stirs the material in the reactor, resulting in uneven mixing of the slag and acid solution, insufficient reaction, and reduced metal leaching rate. The discharge device also suffers from incomplete discharge, leaving residual slag, which not only affects subsequent cleaning but may also impact the effectiveness of the next reaction. Furthermore, some apparatuses lack effective filtration structures, failing to promptly separate residues generated during the reaction, thus affecting the purity of the acid leaching solution and subsequent processing steps.

[0003] In response to the above situation, the inventors proposed an acid leaching reaction device for lead-zinc slag to solve the problems existing in the prior art. Utility Model Content

[0004] To address issues such as uneven mixing of acid solutions, insufficient reaction, incomplete discharge, and easy residue of slag, the purpose of this invention is to provide an acid leaching reaction device for lead-zinc slag.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a lead-zinc slag acid leaching reaction device, including a reaction vessel, a discharge device fixedly provided at the bottom of the reaction vessel, a support frame fixedly provided on the upper surface of the reaction vessel, a stirring device fixedly provided on the upper surface of the support frame, and a feeding device fixedly installed on one side of the top of the reaction vessel.

[0006] Preferably, the discharge device includes a discharge port, which is connected to the bottom of the reactor. A discharge pipe is fixedly provided at the bottom of the discharge port, and a discharge tube is fixedly provided at the bottom of the discharge pipe. A first base is fixedly provided on one side of the discharge tube, and a discharge motor is fixedly provided on the upper surface of the first base. The output end of the discharge motor extends into the discharge tube and is fixedly connected to a conveyor auger.

[0007] Preferably, the stirring device includes a stirring motor, which is fixedly connected to a support frame. The output end of the stirring motor passes through the support frame and is fixedly connected to a stirring rod, which is located inside the reactor. A plurality of first stirring blades are fixedly installed on the upper outer surface of the stirring rod, and a plurality of second stirring blades are fixedly installed on the lower outer surface of the stirring rod. A first filter plate is fixedly provided in the middle of the inner wall of the reactor, and a second filter plate is fixedly provided at the bottom of the reactor. The first filter plate is located between the first and second stirring blades, and the stirring rod moves through the first filter plate. The second filter plate is located below the second stirring blades. The first and second filter plates are sieves with through holes, and the aperture of the first filter plate is larger than that of the second filter plate.

[0008] Preferably, the feeding device includes a second base, one end of which is fixedly connected to a feeding pipe, and a feeding motor is fixedly mounted on the upper surface of the second base. The output end of the feeding motor extends into the feeding pipe and is fixedly connected to a second conveying auger. One end of the feeding pipe leads into the interior of the reactor.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model achieves multi-stage crushing, mixing, and screening of slag by using two layers of stirring blades (one and two), in conjunction with a filter plate (one located between them) and a filter plate (two at the bottom). The upper blades crush large particles, the middle filter plate intercepts unreacted coarse slag and promotes secondary reaction, the lower blades prevent fine slag from settling, and the bottom filter plate ensures smooth discharge, significantly improving reaction uniformity and solid-liquid separation effect. 2. This utility model uses a feeding motor to drive the second conveying auger to rotate inside the feeding pipe, which can stably and evenly transport lead-zinc slag into the reactor. This completely solves the problem of easy blockage at the feed inlet in existing devices, ensuring continuous and uninterrupted feeding. During discharge, the discharge motor drives the conveying auger to rotate inside the discharge pipe, and the material after reaction is completely discharged from the bottom of the reactor through spiral pushing, avoiding the drawbacks of material residue and difficult cleaning in existing devices. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2This is a schematic diagram of the stirring device of this utility model.

[0013] Figure 3 This is a schematic diagram of the material discharge device of this utility model.

[0014] In the diagram: 1. Reactor; 2. Discharge device; 3. Feeding device; 4. Support frame; 5. Stirring device; 6. Valve; 21. Discharge port; 22. Discharge pipe; 23. First base; 24. Discharge motor; 25. First conveyor auger; 26. Discharge pipe; 31. Second base; 32. Feeding motor; 33. Second conveyor auger; 34. Feeding pipe; 51. Stirring motor; 52. Stirring rod; 53. First stirring blade; 54. First filter plate; 55. Second filter plate; 56. Second stirring blade. Detailed Implementation

[0015] 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.

[0016] Example: Figure 1-3 As shown, this utility model provides a lead-zinc slag acid leaching reaction device, including a reaction vessel 1. A discharge device 2 is fixedly provided at the bottom of the reaction vessel 1, and the processed material is discharged from the bottom of the reaction vessel 1. A support frame 4 is fixedly provided on the upper surface of the reaction vessel 1, and a stirring device 5 is fixedly provided on the upper surface of the support frame 4 to provide stirring power so that the material in the vessel is mixed evenly. A feeding device 3 is fixedly installed on one side of the top of the reaction vessel 1, and the material is conveyed into the vessel from the top of the reaction vessel 1.

[0017] The discharge device 2 includes a discharge port 21, which is connected to the bottom of the reactor 1. The material enters the inlet of the discharge device 2 from the reactor 1. A discharge pipe 26 is fixedly provided at the bottom of the discharge port 21, which is the channel for material discharge and guides the material to a designated position. A discharge pipe 22 is fixedly provided at the bottom of the discharge pipe 26. A valve 6 is fixedly installed on one side of the discharge pipe 26. A first base 23 is fixedly provided on one side of the discharge pipe 22. A discharge motor 24 is fixedly provided on the upper surface of the first base 23, which drives the conveyor auger to rotate and provides power for material conveying. The output end of the discharge motor 24 extends into the discharge pipe 22 and is fixedly connected to the conveyor auger 25.

[0018] The stirring device 5 includes a stirring motor 51, which provides rotational power for the entire stirring system. The stirring motor 51 is fixedly connected to the support frame 4. The output end of the stirring motor 51 passes through the support frame 4 and is fixedly connected to a stirring rod 52, which transmits the power of the stirring motor 51 to the stirring rod 52 to drive its rotation. The stirring rod 52 is located inside the reactor 1, extending into the reactor. It is the core component for installing the stirring blades. Multiple first stirring blades 53 are fixedly installed on the upper outer surface of the stirring rod 52, located in the upper part of the reactor 1, mainly responsible for mixing and stirring the upper layer of materials. Multiple second stirring blades 56 are fixedly installed on the lower outer surface of the stirring rod 52, located in the lower part of the reactor 1, mainly responsible for mixing and stirring the lower layer of materials. To agitate the material and prevent sedimentation, a first filter plate 54 is fixedly installed in the middle of the inner wall of the reactor 1, dividing the space inside the reactor into upper and lower areas to prevent large particles from falling. A second filter plate 55 is fixedly installed at the bottom of the reactor 1, located at the very bottom of the reactor body, to prevent larger particles or sediments from entering the discharge port, protecting the discharge device and controlling the particle size of the discharged material. The first filter plate 54 is located between the first stirring blade 53 and the second stirring blade 56, and the stirring rod 52 moves through the first filter plate 54. The second filter plate 55 is located below the second stirring blade 56. The first filter plate 54 and the second filter plate 55 are sieve plates with through holes, and the hole diameter of the first filter plate 54 is larger than that of the second filter plate 55.

[0019] The feeding device 3 includes a second base 31, one end of which is fixedly connected to a feeding pipe 34. A feeding motor 32 is fixedly mounted on the upper surface of the second base 31. The output end of the feeding motor 32 extends into the feeding pipe 34 and is fixedly connected to a second conveying auger 33, which drives the second conveying auger 33 to rotate, providing power for material conveying. One end of the feeding pipe 34 leads into the interior of the reactor 1. The feeding pipe 34 is securely connected to the top of the reactor 1 to ensure that the material can be smoothly fed into the designated position inside the reactor.

[0020] Working principle: During feeding, the feeding device 3 is responsible for conveying the lead-zinc slag into the reactor 1. The feeding motor 32 is started, and its output end drives the second conveying auger 33 to rotate in the feeding pipe 34. Through the spiral pushing action of the auger blades, the lead-zinc slag poured into the feeding pipe 34 is stably conveyed and finally enters the reactor 1 through the end of the feeding pipe 34 leading to the inside of the reactor 1, completing the initial feeding of materials.

[0021] After the material enters the reactor 1, it enters the leaching reaction and stirring stage. At this time, an appropriate amount of acid solution is added into the reactor 1, and the stirring motor 51 in the stirring device 5 is started. The motor output drives the stirring rod 52 to rotate inside the reactor 1. Multiple first stirring blades 53 on the upper part of the stirring rod 52 stir the slag and acid solution in the upper part of the reactor 1, while multiple second stirring blades 56 on the lower part act on the material in the lower part of the reactor 1.

[0022] During the stirring process, the first filter plate 54 in the middle of the inner wall of the reactor 1 and the second filter plate 55 at the bottom play an important role. Since the first filter plate 54 is located between the first stirring blade 53 and the second stirring blade 56, and the stirring rod 52 moves through the first filter plate 54, the through holes it has can perform preliminary screening of the material. Larger slag particles are blocked above the first filter plate 54 and continue to react with the acid under the stirring of the first stirring blade 53 until the particle size is reduced to the size that can pass through the hole of the first filter plate 54 and enter the lower area.

[0023] The material entering the lower area will be further stirred by the second stirring blade 56, so that the slag and acid can fully contact and react. The second filter plate 55 is located below the second stirring blade 56. Its pore size is smaller than that of the first filter plate 54, which can filter the material more finely. This ensures that only the material with sufficient reaction and small enough particles can pass through the second filter plate 55 to reach the bottom of the reactor 1, thus ensuring the thoroughness of the reaction.

[0024] After the reaction is completed, the material discharge stage begins. The valve 6 fixedly installed on one side of the discharge pipe 26 is opened, allowing the material at the bottom of the reactor 1 to enter the discharge pipe 26 through the discharge port 21 connected to the bottom of the reactor 1, and then flow into the discharge pipe 22. The discharge motor 24 in the discharge device 2 is started, and its output end drives the conveyor auger 25 to rotate inside the discharge pipe 22. Through the spiral pushing force of the conveyor auger 25, the material is discharged from the discharge pipe 22, completing the entire acid leaching reaction and material processing process.

[0025] Throughout the entire process, the coordination of each device ensured full contact between the lead-zinc slag and the acid solution, efficient reaction, and orderly material transport and discharge, thereby improving the efficiency and effectiveness of the acid leaching reaction of the lead-zinc slag.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A lead-zinc slag acid leaching reaction apparatus, comprising a reaction vessel (1), characterized in that: The bottom of the reactor (1) is fixedly provided with a discharge device (2), the upper surface of the reactor (1) is fixedly provided with a support frame (4), the upper surface of the support frame (4) is fixedly provided with a stirring device (5), and the top side of the reactor (1) is fixedly provided with a feeding device (3).

2. The lead-zinc slag acid leaching reaction apparatus as described in claim 1, characterized in that, The discharge device (2) includes a discharge port (21) and the discharge port (21) is connected to the bottom of the reactor (1). The bottom of the discharge port (21) is fixedly provided with a discharge pipe (26). The bottom of the discharge pipe (26) is fixedly provided with a discharge pipe (22). A first base (23) is fixedly provided on one side of the discharge pipe (22). A discharge motor (24) is fixedly provided on the upper surface of the first base (23). The output end of the discharge motor (24) extends into the discharge pipe (22) and is fixedly connected to a conveyor auger (25).

3. The lead-zinc slag acid leaching reaction apparatus as described in claim 1, characterized in that, The stirring device (5) includes a stirring motor (51), which is fixedly connected to the support frame (4). The output end of the stirring motor (51) passes through the support frame (4) and is fixedly connected to a stirring rod (52). The stirring rod (52) is located inside the reactor (1). Multiple first stirring blades (53) are fixedly installed on the upper outer surface of the stirring rod (52). Multiple second stirring blades (56) are fixedly installed on the lower outer surface of the stirring rod (52). A first filter plate (54) is fixedly provided in the middle of the inner wall of the reactor (1). A second filter plate (55) is fixedly provided at the bottom of the reactor (1).

4. The lead-zinc slag acid leaching reaction apparatus as described in claim 3, characterized in that, The first filter plate (54) is located between the first stirring blade (53) and the second stirring blade (56), and the stirring rod (52) moves through the first filter plate (54), while the second filter plate (55) is located below the second stirring blade (56).

5. The lead-zinc slag acid leaching reaction apparatus as described in claim 3, characterized in that, The first filter plate (54) and the second filter plate (55) are sieve plates with through holes, and the hole diameter of the first filter plate (54) is larger than the hole diameter of the second filter plate (55).

6. The lead-zinc slag acid leaching reaction apparatus as described in claim 3, characterized in that, The feeding device (3) includes a second base (31), one end of which is fixedly connected to a feeding pipe (34), and a feeding motor (32) is fixedly provided on the upper surface of the second base (31). The output end of the feeding motor (32) extends into the feeding pipe (34) and is fixedly connected to a second conveying auger (33). One end of the feeding pipe (34) leads into the interior of the reactor (1).

7. The lead-zinc slag acid leaching reaction apparatus as described in claim 2, characterized in that, A valve (6) is fixedly installed on one side of the discharge pipe (26).

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