16
2020
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06
On the Manufacturing Technology of Smelting Furnaces
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The furnace bottom, furnace body, furnace roof, and outlet flue of the smelting furnace are equipped with cooling water jackets, and a layer of refractory bricks is laid on the furnace bottom. The smelting furnace has relatively high fuel consumption, but the waste heat boiler can recover most of the waste heat.
Smelting Furnace The furnace bottom, furnace body, furnace roof, and exhaust flue are all equipped with cooling water jackets, and a layer of fire-resistant bricks is laid on the furnace bottom. Smelting Furnace Fuel consumption is relatively high, but the waste heat boiler can recover most of the waste heat.
Smelting Furnace The operation of blowing refining
Slag is composed of Smelting Furnace Processing is divided into three steps: feeding, blowing, and slag discharge. After the slag has been fully blown out in the previous furnace, the slag outlet is sealed with yellow clay, and a water-cooled plugging gun is inserted. Next, the feeding port is opened, and the slag bag—filled with molten slag—is moved from the electric front bed through the electric furnace to the fuming furnace. Finally, a crane is used to pour the slag mixture into the furnace. The material must be loaded to a specific height (typically, the slag depth is 1-1.5m ), please close the feed inlet and switch to normal blowing.
Smelting Furnace Blowing and Refining Time
Factory practices have shown that simply addressing Smelting Furnace During the slag phase, the blowing time is 90-12 Minutes. When exceeding 120 After continuing to blow air for a few minutes, fuel consumption was extremely high, yet the evaporation rate of zinc barely increased. For instance, when adding 30 When using cold material, the fumigation time is 150min , if only cold slag is processed, it will require 240min。
Smelting Furnace Normal operation is typically aimed at controlling the furnace atmosphere, ensuring that the partial pressure of zinc vapor reaches its maximum limit per unit time. This is because the rate at which zinc is reduced and volatilized from the slag depends directly on the zinc content within the slag—as well as on the temperature of the slag and the carbon monoxide concentration in the furnace gas at the tuyere area. Practice has shown that, at a given temperature, increasing the carbon monoxide level accelerates the rate of zinc volatilization. Conversely, under the same atmospheric conditions, raising the slag temperature also boosts the rate at which zinc evaporates.
Smelting Furnace
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Henan Yuguang Metallurgical Machinery Manufacturing Co., Ltd
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No. 888, West Section of North Ring Road, Kejing Town, Jiyuan City