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A kind of preparation technology of zinc alloy prepared from recycled zinc slag

A preparation process and zinc alloy technology, which is applied in the field of zinc slag purification, can solve the problems of backward production process, high production cost, and low quality of recycled zinc ingots, and achieve the effect of low processing cost, low production cost and maximum profit

Active Publication Date: 2019-05-28
浙江芯唐浩志智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a preparation process for preparing zinc alloys by using recycled zinc slag, which can solve the problems of backward production technology, high production cost and low quality of recycled zinc ingots in the current zinc slag recovery process. question

Method used

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  • A kind of preparation technology of zinc alloy prepared from recycled zinc slag
  • A kind of preparation technology of zinc alloy prepared from recycled zinc slag
  • A kind of preparation technology of zinc alloy prepared from recycled zinc slag

Examples

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Embodiment 1

[0038] A preparation process for preparing zinc alloy by using recovered zinc slag

[0039] The preparation process is as follows:

[0040] S10, after the zinc ingot is completely melted in the smelting furnace, add zinc slag, stir every 5 minutes until it is completely dissolved into zinc water, the smelting furnace is heated to 650 ℃ at a rate of 10 ℃ / min, add a slag cleaning agent, tumble and stir to remove slag;

[0041] In the above operation, the addition ratio of zinc nugget and zinc slag is 1000kg: 300kg; the slag cleaning agent is ammonium chloride.

[0042] In S20 and S10, for the zinc water after slag removal, use a slotted spoon to pick up the zinc ash on the surface of the zinc water, put the zinc ash into the ash frying machine, and perform ash frying. When the zinc water is full of 85% in the furnace, stop the ash removal and cut off the power. The obtained zinc water is added with refining agent in proportion, and the slag is removed and exhausted again.

[...

Embodiment 2

[0050] A preparation process for preparing zinc alloy by using recovered zinc slag

[0051] The preparation process is as follows:

[0052] S10, after the zinc ingot is completely melted in the smelting furnace, add zinc slag, stir every 10 min until it is completely dissolved into zinc water, the smelting furnace is heated to 680 ℃ at a rate of 20 ℃ / min, add slag cleaning agent, tumble and stir to remove slag;

[0053] In the above operation, the addition ratio of zinc nugget and zinc slag is 1000kg: 700kg; the slag cleaning agent is sodium nitrite.

[0054] In S20 and S10, for the zinc water after slag removal, use a slotted spoon to pick up the zinc ash on the surface of the zinc water, put the zinc ash into the ash frying machine, and perform ash frying. When the zinc water is full to 92% in the furnace, the ash removal is stopped, and the power is turned off. The obtained zinc water is added with refining agent in proportion, and the slag is removed and exhausted again....

Embodiment 3

[0062] A preparation process for preparing zinc alloy by using recovered zinc slag

[0063] The preparation process is as follows:

[0064] S10, after the zinc ingot is completely melted in the smelting furnace, add zinc slag, stir every 6 minutes until it is completely dissolved into zinc water, the smelting furnace is heated to 660 ℃ at a rate of 12 ℃ / min, add a slag cleaning agent, tumble and stir to remove slag;

[0065] In the above operation, the addition ratio of zinc nugget and zinc slag is 1000kg: 400kg; the slag cleaning agent is ammonium chloride.

[0066] In S20 and S10, for the zinc water after slag removal, use a slotted spoon to pick up the zinc ash on the surface of the zinc water, put the zinc ash into the ash frying machine, and perform ash frying. When the zinc water is full to 88% in the furnace, the ash removal is stopped, and the power is turned off. The obtained zinc water is added with refining agent in proportion, and the slag is removed and exhauste...

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Abstract

The invention relates to a preparation technology for preparing zinc alloy through recycled zinc slag. The preparation technology comprises the following steps that S10, after a zinc bock is completely melted in a smelting furnace, zinc slag is added into the zinc block, the zinc slag and the zinc block are stirred to be completely dissolved into molten zinc, the temperature of the smelting furnace is raised to 650-680 DEG C, a slag removal agent is added, and rolling over and stirring are conducted for slag removal; S20, zinc ash on the surface of the molten zinc in the step S10 is removed, arefining agent is proportionally added into the molten zinc, slag removal and gas exhaust are conduced, the temperature is controlled, slag formation is carried out repeatedly, and detrimental impurities are removed; and S30, when the temperature of the molten zinc is preserved to 630-660 DEG C, waste aluminum wires are proportionally added immediately and stirred to be completely melted, then, agrain refiner is proportionally added and sufficiently stirred, after still standing, pouring is conduced, and a formed zinc alloy block is obtained after natural cooling. Through the preparation technology, the problems that in the zinc slag recycling process at present, the production technology falls behind, the production cost is high, and the quality of recycled zinc ingots is low are solved, and meanwhile, the prepared zinc alloy has the excellent properties of oxidative deterioration resistance, rust resistance and high-strength abrasion resistance.

Description

technical field [0001] The invention belongs to the technical field of zinc slag purification, and in particular relates to a preparation process for preparing zinc alloy by recovering zinc slag. Background technique [0002] Zinc slag is a solid waste slag produced in the process of smelting zinc ingots or from the residual material of volatilized zinc oxide in a rotary kiln. This solid smelting slag usually contains metal substances such as iron, copper, gold and silver, and has considerable comprehensive utilization value. [0003] The existing zinc slag treatment process is limited to extracting valuable metals such as silver, iron, gold or copper from the zinc slag again, and the remaining materials are still piled up as solid wastes, and the entire zinc slag cannot be recovered. process for comprehensive application. Moreover, the treatment methods of zinc slag mainly include wet method and fire method, both of which have been successfully applied to the regeneration ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C18/00C22C1/02C22C1/06
CPCC22C1/02C22C1/06C22C18/00
Inventor 徐锦涛唐建锋
Owner 浙江芯唐浩志智能科技有限公司