Feeding device in a zinc hydrometallurgy process
Patent Information
- Application Number
- CN202522467898.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-11-21
AI Technical Summary
然而，以上传统方法在实际操作中存在显著缺陷：首先，操作人员需在槽口高处进行吊装、切口操作，存在高空坠落、刀具伤害及粉尘吸入等安全隐患；其次，操作人员需配合电动葫芦频繁搬运重型吨袋并执行加料作业劳动强度极大；再者，人工倾倒加料过程难以准确控制物料流量与落点，易造成辅材进料不均匀、结块物料直接入槽的问题，直接影响浸出反应的均匀性和效率，最终损害产品品质与工艺稳定性
[0009]本实用新型的有益效果是：本实用新型采用十字形钢条替代人工割袋方式，彻底消除刀具隐患和高空坠物风险；螺旋破碎机构与气动震打器协同作用，解决了辅材结块导致的堵塞难题，保障物料连续均匀进料；变频调速出料阀实现加料速率精准控制，以提升后续浸出反应稳定性；将本实用新型直接安装于现有浆化槽槽口上方即可，改造成本低。本实用新型在保障人员安全的同时，提高加料精度，提高生产效率，实现辅材安全、均匀、高效的投加。
Smart Images
Figure CN224812608U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary production equipment for hydrometallurgical zinc leaching processes, specifically to a feeding device in the hydrometallurgical zinc leaching process. Background Technology
[0002] In the hydrometallurgical zinc leaching process, a large amount of solid additives needs to be added to the mixing tank or slurry tank. Traditionally, this is done manually. Operators use an electric hoist to lift the ton bags containing the additives to the top of the mixing tank, then untie the ropes or manually cut the bottom of the bags with a knife, allowing the additives to fall into the tank under their own weight. However, this traditional method has significant drawbacks in practice: First, operators must perform hoisting and cutting operations at a high position above the tank opening, posing safety hazards such as falls from height, knife injuries, and dust inhalation. Second, the frequent lifting and adding of heavy ton bags by operators in conjunction with the electric hoist is extremely labor-intensive. Third, the manual pouring process makes it difficult to accurately control the material flow and drop point, easily leading to uneven feeding of additives and the direct entry of clumps into the tank, directly affecting the uniformity and efficiency of the leaching reaction, ultimately damaging product quality and process stability.
[0003] Currently, some manufacturers use automated feeding equipment to add auxiliary materials to the leaching tanks of wet zinc smelting, but the following key limitations still exist: 1. Existing solutions mostly rely on the cooperation of multiple transfer devices such as screw conveyors, pipelines, and chutes, which occupy a large overall space and often cannot be directly adapted to the space-constrained installation environment around the mixing tank. In addition, the transfer path is long and the efficiency is low; 2. Existing automated feeding equipment lacks the ability to actively and efficiently crush hard lumps that have already formed, and cannot ensure that the particle size of the material entering the tank is uniform; 3. Existing devices have complex structures and low integration, and cannot effectively replace the high-risk manual bag-cutting feeding mode.
[0004] Therefore, there is an urgent need in the existing technology for a feeding device in the wet zinc smelting process to achieve safe, uniform and efficient addition of auxiliary materials. Summary of the Invention
[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a feeding device in the wet zinc smelting process to achieve safe, uniform and efficient addition of auxiliary materials.
[0006] The purpose of this utility model is achieved through the following technical solution: a feeding device in a wet zinc smelting process, comprising a silo, the silo comprising a cylindrical upper part and an inverted conical lower part disposed at the lower end of the upper part, a feed inlet disposed at the top of the silo, a cross-shaped steel bar disposed below the feed inlet inside the silo, the top of the cross-shaped steel bar being provided with a blade, a motor-driven spiral crushing mechanism disposed below the cross-shaped steel bar inside the silo, a discharge outlet disposed at the bottom of the silo, the discharge outlet being provided with a frequency conversion speed regulating discharge valve, and pneumatic vibrators disposed at both the left and right ends of the outer side of the silo.
[0007] Furthermore, the spiral crushing mechanism includes a rotating shaft and spiral blades disposed on the rotating shaft, and the rotating shaft is connected to the power output end of the motor.
[0008] Furthermore, a bottom flange is provided at the bottom end of the discharge port.
[0009] The beneficial effects of this utility model are as follows: This utility model uses a cross-shaped steel bar to replace the manual bag-cutting method, completely eliminating the hidden dangers of blades and the risk of falling objects from heights; the spiral crushing mechanism and the pneumatic vibrator work together to solve the clogging problem caused by the agglomeration of auxiliary materials, ensuring continuous and uniform material feeding; the variable frequency speed control discharge valve achieves precise control of the feeding rate, thereby improving the stability of subsequent leaching reactions; this utility model can be directly installed above the opening of the existing slurry tank, resulting in low modification costs. This utility model improves feeding accuracy and production efficiency while ensuring personnel safety, achieving safe, uniform, and efficient addition of auxiliary materials. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] In the diagram: 1-hopper; 2-feed inlet; 3-spiral crushing mechanism; 4-pneumatic vibrator; 5-variable frequency speed control discharge valve; 6-motor; 7-discharge port; 8-bottom flange; 9-cross-shaped steel bar. Detailed Implementation
[0012] The present invention will now be described in detail with reference to the accompanying drawings.
[0013] like Figure 1As shown, a feeding device in a wet zinc smelting process includes a silo 1. The silo 1 includes a cylindrical upper part and an inverted conical lower part located at the lower end of the upper part. A feed inlet 2 is provided at the top of the silo 1. A cross-shaped steel bar 9 is provided below the feed inlet 2 inside the silo 1. The top of the cross-shaped steel bar 9 is provided with a blade. A spiral crushing mechanism 3 driven by a motor 6 is provided below the cross-shaped steel bar 9 inside the silo 1. A discharge port 7 is provided at the bottom of the silo 1. A frequency conversion speed regulating discharge valve 5 is provided at the discharge port 7. Pneumatic vibrators 4 are provided at both the left and right ends of the outer side of the silo 1.
[0014] During operation, the operator hoists the ton bag to the top of this utility model, allowing it to slowly descend into the hopper 1 and onto the intersection of the horizontal and vertical steel bars 9. Since the tops of the horizontal and vertical steel bars 9 are blades, as the ton bag continues to descend, its own weight acts on the blades of the cross-shaped steel bars 9, cutting open the bottom of the ton bag. The granular auxiliary material enters the hopper 1 and falls downwards. During this process, the spiral crushing mechanism 3 is driven to rotate by the motor 6. The spiral crushing mechanism 3 includes a rotating shaft and spiral blades mounted on the rotating shaft, which is connected to the power output end of the motor 6. The spiral blades actively crush the agglomerated material into uniform particles. Simultaneously, the pneumatic vibrator 4 intermittently vibrates at high frequency, transmitting the vibration through the wall of the hopper 1 to eliminate material bridging and ensure the auxiliary material falls smoothly to the discharge port 7. Afterwards, the auxiliary material falls evenly into the slurry tank through the discharge port 7. The discharge rate can be controlled by adjusting the speed of the variable frequency speed control discharge valve 5. When a single feeding operation is about to be completed, the motor 6 stops working, the pneumatic vibrator 4 vibrates for a few seconds after a delay to clear the residual material, and then the variable frequency speed control discharge valve 5 is closed, and the feeding is completed.
[0015] See Figure 1 The bottom of the discharge port 7 is provided with a bottom flange 8 for connecting to the top opening of the slurry tank.
[0016] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.
Claims
1. A feeding device for a hydrometallurgical zinc smelting process, comprising a silo, characterized in that: The hopper includes a cylindrical upper part and an inverted conical lower part located at the lower end of the upper part. The top of the hopper has a feed inlet. Inside the hopper, below the feed inlet, is a cross-shaped steel bar with a blade at the top. Inside the hopper, below the cross-shaped steel bar, is a motor-driven spiral crushing mechanism. The bottom of the hopper has a discharge outlet equipped with a frequency-controlled discharge valve. Pneumatic vibrators are installed at both the left and right ends of the outer side of the hopper.
2. The feeding device in a hydrometallurgical zinc smelting process according to claim 1, characterized in that: The spiral crushing mechanism includes a rotating shaft and spiral blades disposed on the rotating shaft, and the rotating shaft is connected to the power output end of the motor.
3. The feeding device in a hydrometallurgical zinc smelting process according to claim 2, characterized in that: A bottom flange is provided at the bottom of the discharge port.