Method of producing manganese monoxide by utilizing waste manganese dioxide

Abstract

The invention relates to the technical field of mineral resource utilization and specifically relates to a method of producing manganese monoxide by utilizing waste manganese dioxide. The method comprises the following steps: by taking low-grade manganese dioxide powder and common anthracite powder as raw materials, pre-heating by utilizing waste heat exchange to remove moisture, initially and quickly heating and roasting by utilizing medium-frequency magnetic wave induction, heating, roasting and reducing in a sectional manner by virtue of a thermal resistance wire, preserving heat and continuing to reduce, cooling by utilizing closed waste heat exchange, cooling by virtue of water quenching, discharging and enabling the raw materials to enter a storage bin to prepare efficient, energy-saving and cheap manganese monoxide roasted powder. According to the method disclosed by the invention, low-grade and low-cost manganese dioxide is adopted as production raw materials, so that recycling of the waste manganese dioxide can be realized.

Description

technical field

[0001] The invention relates to the technical field of mineral resources utilization, specifically a method for producing manganese monoxide by using waste manganese dioxide, which realizes the recovery of waste manganese dioxide by using low-grade and low-cost manganese dioxide as production raw materials Reuse. Background technique

[0002] Manganese monoxide roasting powder is the main raw material for the production of manganese sulfate and electrolytic manganese, especially low-grade, low-cost manganese monoxide roasting powder alone or in combination with low-grade manganese carbonate to produce electrolytic manganese has wider uses and lower cost. The production of manganese monoxide is mainly obtained through the reduction of manganese dioxide. The method used in the past is to use high-grade manganese carbonate or high-grade manganese dioxide to roast to produce electrolytic manganese. This production method has low resource utilization rate and high...

Examples

Embodiment 1

[0024] The method of using waste manganese dioxide to produce manganese monoxide uses low-grade manganese dioxide powder and ordinary anthracite coal powder as raw materials, and uses waste heat exchange to preheat to remove moisture, intermediate frequency magnetic wave induction, preliminary rapid temperature rise roasting, and thermal resistance wire segmental heating High-efficiency, energy-saving and cheap manganese monoxide roasting powder is obtained after the steps of roasting reduction, heat preservation and continuous reduction, waste heat sealing and exchange cooling, water quenching and cooling, and discharge into the storage bin;

[0025] Low-grade manganese dioxide is the tailings sludge after extracting high-grade manganese dioxide. The percentage of total manganese is 15%. Manganese dioxide powder and ordinary anthracite powder are made into 90-mesh powder by Raymond machine. Mix together at a ratio of 1:0.07 and use the waste heat exchange method to raise the t...

Embodiment 2

[0032] The method of using waste manganese dioxide to produce manganese monoxide uses low-grade manganese dioxide powder and ordinary anthracite coal powder as raw materials, and uses waste heat exchange to preheat to remove moisture, intermediate frequency magnetic wave induction, preliminary rapid temperature rise roasting, and thermal resistance wire segmental heating High-efficiency, energy-saving and cheap manganese monoxide roasting powder is obtained after the steps of roasting reduction, heat preservation and continuous reduction, waste heat sealing and exchange cooling, water quenching and cooling, and discharge into the storage bin;

[0033] Low-grade manganese dioxide is the tailings sludge after extracting high-grade manganese dioxide. The percentage of total manganese is 18%. Manganese dioxide powder and ordinary anthracite powder are made into 95-mesh powder by Raymond machine. Mix together at a ratio of 1:0.08 and use the waste heat exchange method to raise the t...

Embodiment 3

[0040]The method of using waste manganese dioxide to produce manganese monoxide uses low-grade manganese dioxide powder and ordinary anthracite coal powder as raw materials, and uses waste heat exchange to preheat to remove moisture, intermediate frequency magnetic wave induction, preliminary rapid temperature rise roasting, and thermal resistance wire segmental heating High-efficiency, energy-saving and cheap manganese monoxide roasting powder is obtained after the steps of roasting reduction, heat preservation and continuous reduction, waste heat sealing and exchange cooling, water quenching and cooling, and discharge into the storage bin;

[0041] Low-grade manganese dioxide is the tailings sludge after extracting high-grade manganese dioxide. The percentage of total manganese is 23%. Manganese dioxide powder and ordinary anthracite powder are made into 100-mesh powder by Raymond machine. Mix together at a ratio of 1:0.09 and use the waste heat exchange method to raise the t...

technical field

[0001] The invention relates to the technical field of mineral resources utilization, specifically a method for producing manganese monoxide by using waste manganese dioxide, which realizes the recovery of waste manganese dioxide by using low-grade and low-cost manganese dioxide as production raw materials Reuse. Background technique

[0002] Manganese monoxide roasting powder is the main raw material for the production of manganese sulfate and electrolytic manganese, especially low-grade, low-cost manganese monoxide roasting powder alone or in combination with low-grade manganese carbonate to produce electrolytic manganese has wider uses and lower cost. The production of manganese monoxide is mainly obtained through the reduction of manganese dioxide. The method used in the past is to use high-grade manganese carbonate or high-grade manganese dioxide to roast to produce electrolytic manganese. This production method has low resource utilization rate and high...

Examples

Embodiment 1

[0024] The method of using waste manganese dioxide to produce manganese monoxide uses low-grade manganese dioxide powder and ordinary anthracite coal powder as raw materials, and uses waste heat exchange to preheat to remove moisture, intermediate frequency magnetic wave induction, preliminary rapid temperature rise roasting, and thermal resistance wire segmental heating High-efficiency, energy-saving and cheap manganese monoxide roasting powder is obtained after the steps of roasting reduction, heat preservation and continuous reduction, waste heat sealing and exchange cooling, water quenching and cooling, and discharge into the storage bin;

[0025] Low-grade manganese dioxide is the tailings sludge after extracting high-grade manganese dioxide. The percentage of total manganese is 15%. Manganese dioxide powder and ordinary anthracite powder are made into 90-mesh powder by Raymond machine. Mix together at a ratio of 1:0.07 and use the waste heat exchange method to raise the t...

Embodiment 2

[0032] The method of using waste manganese dioxide to produce manganese monoxide uses low-grade manganese dioxide powder and ordinary anthracite coal powder as raw materials, and uses waste heat exchange to preheat to remove moisture, intermediate frequency magnetic wave induction, preliminary rapid temperature rise roasting, and thermal resistance wire segmental heating High-efficiency, energy-saving and cheap manganese monoxide roasting powder is obtained after the steps of roasting reduction, heat preservation and continuous reduction, waste heat sealing and exchange cooling, water quenching and cooling, and discharge into the storage bin;

[0033] Low-grade manganese dioxide is the tailings sludge after extracting high-grade manganese dioxide. The percentage of total manganese is 18%. Manganese dioxide powder and ordinary anthracite powder are made into 95-mesh powder by Raymond machine. Mix together at a ratio of 1:0.08 and use the waste heat exchange method to raise the t...

Embodiment 3

[0040]The method of using waste manganese dioxide to produce manganese monoxide uses low-grade manganese dioxide powder and ordinary anthracite coal powder as raw materials, and uses waste heat exchange to preheat to remove moisture, intermediate frequency magnetic wave induction, preliminary rapid temperature rise roasting, and thermal resistance wire segmental heating High-efficiency, energy-saving and cheap manganese monoxide roasting powder is obtained after the steps of roasting reduction, heat preservation and continuous reduction, waste heat sealing and exchange cooling, water quenching and cooling, and discharge into the storage bin;

[0041] Low-grade manganese dioxide is the tailings sludge after extracting high-grade manganese dioxide. The percentage of total manganese is 23%. Manganese dioxide powder and ordinary anthracite powder are made into 100-mesh powder by Raymond machine. Mix together at a ratio of 1:0.09 and use the waste heat exchange method to raise the t...