The Behavior Of The Composite Binder In The Cold Pellets Of Manganese Ore

With economic development,domestic demand for manganese ore substantial growth,particularly the demands for block ore and rich ore,that result in the domestic supply of manganese ore resources of tension.To solve this problem,the need to use powder ore,manganese ore powder and a direct smelting will lead furnace conditions to instability,increased costs and other unfavorable factors.Therefore,the pellets will be made of mineral powder and then smelting is an effective way.At the same time, ferroalloy smelting process will generate a lot of dust,manganese content in the dust of 25 to 35%,higher than the general grade manganese ore,we must give recycling. Manganese Industry Dounan urgent need to build economic and environmental processing of raw materials production line.Manganese system in the Mission Study,the ore abroad because of its abundant resources,large reserves,the higher grade of reasons,have not yet found that in addition to sintering system other than the way the corporation reported,while in China,the method for a variety of reasons,not Promote the use in production,the use of dust and few.In this study teams from other minerals on the basis of a powder ore pellets of the cold press method,using ferromanganese smelter produced by dust, directly in the factory production line,and then get the best conditions and applied in production.Test used to dust powder mixed ore pellets made of,smelting,such a waste recycling,not only conducive to environmental protection,recycling of resources will also benefit.This study is the key to find a price to meet production needs and can withstand the binder,and applied to production.This study through analysis and comparison tests,are the main ingredients of bentonite to montmorillonite,and a number of impurities,such as quartz,feldspar, bentonite affect performance at the same time that the main reason is due to the calcium bentonite - Bentonite,the need for a modified ore.Through the pilot study to test a one-time modified,and that of sodium bentonite modified parameters for the best:sodium agent used Na₂CO₃ reagents,the amount of 5%of the total bentonite, stirring time to 60 min,After sodium treatment,the bentonite galotinou is 96 ml/15g soil,has a good nature,as a team for the binder. A single pellet binder on the impact of pilot study showed that:bentonite can significantly improve the dry-strength,and starch and water glass markedly improved wet-strength;bentonite in the amount of 0.5%to 1%more appropriate.Research conducted on the composite pellet binder test results showed that:composite binder to consolidate the advantages of binder,a substantial increase team performance,applied to industrial production;compound used in the binder,the use of solid Binder than the use of liquid adhesive produced by the better team performance.At the same time,the application of solid binder,is able to effectively control the wet ball in the water, simplified the process,and further improved the team strength characteristics of a solid binder production team,Received the ball dry compressive strength to achieve an average of 238.44 kg,1m falling strength of 7 to 10 times,the average for the wet compressive strength is 21.4 kg,that's a good effect;best binder of materials for the weight of 2%to4%,20%for the major components of bentonite,50%starch,and so on.