What Are These Machines and How Do They Work?
A Ball Mill grinds material by rotating a cylinder with steel grinding balls, causing the balls to fall back into the cylinder and onto the material to be ground. The rotation is usually between 4 to 20 revolutions per minute, depending upon the diameter of the mill. The larger the diameter, the slower the rotation. If the peripheral speed of the mill is too great, it begins to act like a centrifuge and the balls do not fall back, but stay on the perimeter of the mill.
The point where the mill becomes a centrifuge is called the "Critical Speed", and ball mills usually operate at 65% to 75% of the critical speed.
Ball Mills are generally used to grind material 1/4 inch and finer, down to the particle size of 20 to 75 microns. To achieve a reasonable efficiency with ball mills, they must be operated in a closed system, with oversize material continuously being recalculated back into the mill to be reduced. Various classifiers, such as screens, spiral classifiers, cyclones and air classifiers are used for classifying the discharge from ball mills.
This formula calculates the critical speed of any ball mill. Most ball mills operate most efficiently between 65% and 75% of their critical speed.
Application:
Ball mill is the key equipment for grinding after the crush process, and it is widely used in the manufacture industries, such as cement, silicate, new building material, refractory material, fertilizer, ferrous metal, nonferrous metal and glass ceramics.
It also can be used for the dry and wet grinding for all kinds of ores and other grind-able materials.
Types:
Mill could be sorted as following:
As per the grinding media: ball mill, rod mill and AG Mill (without grinding media).
As per material discharging mode: wet grid mill, dry grid mill & overflow mill.
As per driving mode: side & central driving. The former is more popular now.
As per driving configuration:
a. Asynchronous motor driving: Asynchronous motor + Reducer + Pinion +Girth gear
b. Synchronous motor driving: Synchronous motor+ Air clutch+ Pinion +Girth gear
c. Asynchronous motor + reducer + diaphragm coupling
Structure of Ball mill:
The machine is composed of feeding part, discharging part, turning part and driving part (reducer, small driving gear, electric motor and electric control).
The quill shaft adopts cast steel part and the liner is detachable. The turning gearwheel adopts casting hobbing process and the drum is equipped with wear-resistant liner, which has good wear-resistance.
Export standard container 20GP OR 40GP,40HQ,FR container,In bulk,the spare parts in wooden case
Supplier: En590 10 , D6 , Naphtha , Jetfuel, Nigerian Crude, Petcoke, and Iron Ore ( Mexico origin )
Buyer: Used/second hand equipment, machinery, plants, granular sulphur
Supplier: Icumsa 45 sugar, nano titanium, all types of thermal coal, metallurgical coal and pet coke, all types of used industrial mfg. equipment.
Corn ethanol /alcohol plant /production line welcome all friends all over the world ! Fuel /medical /food ethanol /alcohol process machine,ethanol/alcohol production line/process line ,ethanol /alcohol equipment ,ethanol/alcohol distillation machine ,ethanol /alcohol turnkey project 1. It is a turn key whole set equipment, simple equipment, less worker, less area, less cost. 2. Can produce 1000L-1000000L 96%-99.9% alcohol(ethanol) per day. 3. Can use Corn, wheat, cassava, molasses, rice, potato, date, beetroot, sugar cane ect which contains starch or sugar material. 4. We can do the turn key system or section part. 5. Can improve and rebuild old alcohol(ethanol) production line.
Cassava ethanol alcohol production line We professional manufacture of ethanol alcohol equipment ,DDGS ,equipment ,vine gare equipment in China. The material can be corn(maize) ,wheat,potato,cassava,molasses,beetroot,or any other material which contains starch or sugar .we sell our products to more than 20 countries all over the world. Now our main products are as follow : 1.Turnkey ethanol /alcohol plant project which can produce 95% -96% food grade alcohol,medical alcohol,reagent grade anhydrous ethanol/alcohol or 99.8% fuel grade anhydrous ethanol .Output can be from 1000LPD to 2million LPD . 2.DDGS protein feed equipment ,feed drying equipment . 3.Waste water environmental process equipment 4.Design and manufacture ethanol/alcohol equipment according to customers inquired or drawing .
Arab date seeds removing machine ,it is necessary machine for date process, low investing high profit ! sanitary working ,save labour power,high efficient ! 100kg /200kg per hour ,big capacity 72000pcs/hour ,when change the mould can process different size date and other fruits ,one machine are multifunction use !
Automatic dough plate setting machine shelving machine all-in-one machine, Use bionic technology to complete automatic dough plate setting and automatic shelving, which is more convenient, efficient and sanitary for the next processing, and saves labor costs. Capacity 3600pcs/hour,dough weight can adjustable,220V/0.75kw . .1person can operation ! welcome order !
Corn grain Fuel ethanol alcohol process plant ,Ethanol replaces fuel oil to reduce pollution and protect the earth! we offer turnkey project fuel ethanol alcohol process line and by -product process machine which have waste water treatment, feeding /Organic fertilizer/biogas power generator and so on from 5000L -600000L capacity,design according to customer raw materils ,offer installtaion commissioning training after-sale service for customer ! welcome cooperate! Need customer tell us what are your raw materil to produce ethanol/alcohol ? how many capacity per day from your raw materil or how many capacity ethanol /alcohol you want to produce ? which kind ethanol/alcohol : food type,fuel type ,medical type ,industry type are different thanks. #ethanolalcoholprocessplant #fuelethanolplant #medicalethanolplant #foodethanolplant #productionline #machine #equipment welcome cooperate!
Ethanol alcohol distillation column 1. It is standard 95-96% alcohol equipment. Also it can distill pure water. 2.The distillation system has  three columns  and  continuous  distillation  process.The process is the  same as industrial(large scale) alcohol equipment.  Mash distillation  column distills  fermented  mash or light alcohol  to 50% alcohol ethanol . It has red copper bubble cap trays, standard design. It auto continuously feeds material liquid, auto continuously produces 50% alcohol ethanol and auto continuously discharges waste,  ethanol discharge in waste 0.05%, better than international standard requirements. The first rectification distillation  column  increases  alcohol degree  to 70-75% ,  separates  fusel oil and high boiling point  Impurities.  It auto discharges waste water,  ethanol discharge in waste 0.05%, better than international standard requirements. The second rectification distillation  column  increases alcohol degree to 95%,  separates low boiling point  impurities  like acetaldehyde and methanol . 3.  The rectification system uses  industrial(large scale) standard process, but the whole set alcohol equipments are installed in one frame, like integration  module, even  you can run it by a button.
Sugar Ethanol /Alcohol Process Machine Fuel /medical /food ethanol /alcohol process machine,ethanol/alcohol production line/process line ,ethanol /alcohol equipment ,ethanol/alcohol distillation machine ,ethanol /alcohol turnkey project 1. It is a turn key whole set equipment, simple equipment, less worker, less area, less cost. 2. Can produce 1000L-1000000L 96%-99.9% alcohol(ethanol) per day. 3. Can use Corn, wheat, cassava, molasses, rice, potato, date, beetroot, sugar cane ect which contains starch or sugar material. 4. We can do the turn key system or section part. 5. Can improve and rebuild old alcohol(ethanol) production line.