Zinc dross separating device for recycling zinc dross

Abstract

The utility model relates to the technical field of zinc dross recycling, in particular to a zinc dross separating device for recycling zinc dross. The transverse and longitudinal partition plates form a small zinc slag hopper, and baffles are installed around the partition plates. Zinc dross is fished out of a hot galvanizing line and then put into a zinc dross separation device used for recycling and reusing the zinc dross, the device is formed by combining a plurality of small zinc dross hoppers, the zinc dross is solidified into small zinc dross blocks in the small zinc dross hoppers, and the zinc dross is separated from the small zinc dross hoppers after being thoroughly solidified to form the small zinc dross blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of zinc slag recovery. Background Art

[0002] The zinc slag recovery and reuse technology realizes the recovery and reuse of zinc by heating. To shorten the heating time and facilitate the loading of zinc slag into the heating furnace, the zinc slag for recovery must be divided into small pieces. The zinc slag generated by the traditional hot-dip galvanizing line is generally directly put into the zinc slag hopper and forms large zinc slag blocks after solidification, which cannot be directly loaded into the zinc slag recovery heating furnace. Therefore, the large zinc slag blocks need to be cut into small pieces before being loaded into the furnace for heating and recovery and reuse. Summary of the Utility Model

[0003] In order to solve the technical problem that in the prior art, zinc slag is directly put into the zinc slag hopper and forms large zinc slag blocks after solidification, which cannot be directly loaded into the zinc slag recovery heating furnace, the utility model provides a zinc slag separation device for zinc slag recovery and reuse.

[0004] The technical solution adopted by the utility model to achieve the above purpose is as follows:

[0005] A zinc slag separation device for zinc slag recovery and reuse, in which the transverse and longitudinal partition plates 5 form a small zinc slag hopper 4, and baffles 7 are installed around the partition plates 5.

[0006] A raised support plate 1 is provided at the bottom of the baffle 7.

[0007] A support seat 2 is provided at the top of the baffle 7, and the support seat 2 is connected to the partition plate 5.

[0008] A support structure 3 is installed at the top of the support seat 2, and a forklift hole 6 is provided on the support structure 3.

[0009] The small zinc slag hopper 4 has a structure that is wider at the top and narrower at the bottom.

[0010] The advantages of the utility model compared with the prior art are as follows:

[0011] After the zinc slag is fished out from the hot-dip galvanizing line and put into the zinc slag separation device for zinc slag recovery and reuse, this device is composed of multiple small zinc slag hoppers. The zinc slag solidifies into small zinc slag blocks in the small zinc slag hoppers. After the zinc slag is completely solidified, it is taken out of the small zinc slag hoppers to form small zinc slag blocks. Description of the Drawings

[0012] Figure 1 It is a perspective view of a zinc slag separation device for zinc slag recovery and reuse of the utility model.

[0013] Figure 2 It is the utility model Figure 1 The sectional view of the A-A plane in it.

[0014] In the figure: 1, support plate; 2, support base; 3, support structure; 4, small zinc dross hopper; 5, partition plate; 6, forklift hole; 7, baffle plate. Detailed implementation mode

[0015] A zinc dross separation device for zinc dross recycling and reuse provided by the utility model, as Figure 1-2 shown, the horizontal and vertical partition plates 5 form a small zinc dross hopper 4. The small zinc dross hopper 4 has a structure that is wider at the top and narrower at the bottom. Baffle plates 7 are installed around the partition plates 5. A raised support plate 1 is provided at the bottom of the baffle plate 7. The support plate 1 is used to support the device after the device in this application is flipped, facilitating the demolding of small zinc dross blocks from the small zinc dross hopper 4. A support base 2 is provided at the top of the baffle plate 7. The support base 2 is connected to the partition plate 5. A support structure 3 is installed at the top of the support base 2. A forklift hole 6 is provided on the support structure 3. By inserting the forklift rod into the forklift hole 6 with a forklift, the movement and flipping of the device in this application are realized, facilitating the demolding of small zinc dross blocks from the small zinc dross hopper 4.

[0016] Working principle of the support plate: Zinc dross is a mixture of metal compounds and oxides formed by binary or ternary reactions of iron, aluminum, and zinc in zinc liquid during the galvanizing production process. It is divided into two categories: ① zinc oxide - aluminum oxide type, ② zinc - iron and iron - aluminum compound type. Among them, the oxide - type zinc dross is mainly formed by the oxidation reaction of the zinc liquid surface exposed to the air with oxygen in the air, and the metal compound is formed by the reaction of iron, aluminum, and zinc in the zinc liquid.

[0017] The oxide - type zinc dross is mainly located on the surface of the zinc liquid. After formation, it can prevent further contact between the zinc liquid and the air and reduce the oxidation of the zinc liquid. However, if the zinc dross stays on the surface of the zinc pot for too long, it will agglomerate, which will seriously affect the product quality in severe cases. The hot - dip galvanizing production line can control the amount of zinc dross on the surface of the zinc liquid through regular slag skimming operations, that is, forming the by - product of the hot - dip galvanizing production line, zinc dross. During the actual production slag skimming process, it is inevitable to carry out a certain amount of zinc liquid extra, resulting in a certain waste. After inspection and analysis, the main component of zinc dross in most hot - dip galvanizing production lines is free zinc. The zinc dross composition of different production lines is slightly different. The content of free zinc in zinc dross is generally 90 - 98%. It can be seen that the zinc - iron - aluminum compounds and zinc and aluminum oxides in zinc dross only account for a very small part. Usually, the zinc dross produced by the hot - dip galvanizing production line is about 8 - 15% of the zinc ingot input, and it is mostly sold in the form of by - products, and its price is lower than that of zinc ingots. This treatment method causes a large amount of zinc ingot waste. At the same time, it also forms a large amount of logistics costs.

[0018] Since most of the zinc slag is free zinc, whose melting point is lower than that of zinc-iron-aluminum compounds and zinc and aluminum oxides in the zinc slag, separation of free zinc from other substances in the zinc slag can be achieved by heating, thus obtaining recycled zinc ingots with high purity and reusable conditions. This technology is the zinc slag recycling technology. The application of this technology can effectively reduce the consumption of zinc ingots in the galvanizing line and lower the production cost.

[0019] After the zinc slag is fished out from the hot-dip galvanizing line, it is put into the small zinc slag hopper 4, where the zinc slag solidifies into small zinc slag blocks. After the zinc slag is completely solidified, it is taken out of the mold to form small zinc slag blocks, which can be put into the zinc slag recycling heating furnace for recycling.

[0020] The present utility model is described by way of examples. Those skilled in the art will appreciate that various changes or equivalent substitutions can be made to these features and examples without departing from the spirit and scope of the present utility model. Additionally, under the teachings of the present utility model, these features and examples can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the protection scope of the present utility model.

Claims

1. A zinc slag separation device for recycling zinc slag, characterized in that: The transverse and longitudinal partition plates (5) form a small zinc slag hopper (4), and baffle plates (7) are installed around the partition plates (5).

2. A zinc slag separation device for recycling zinc slag according to claim 1, characterized in that: A raised support plate (1) is provided at the bottom of the baffle (7).

3. The zinc slag separation device for zinc slag recovery and reuse according to claim 1, characterized in that: A support seat (2) is provided on the top of the baffle (7), and the support seat (2) is connected to the partition plate (5).

4. A zinc slag separation device for recycling zinc slag according to claim 3, characterized in that: A supporting structure (3) is installed on the top of the supporting seat (2), and a forklift hole (6) is provided on the supporting structure (3).

5. The zinc slag separation device for zinc slag recovery and reuse according to claim 1, characterized in that: The small zinc slag bucket (4) is a structure that is wide at the top and narrow at the bottom.

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