High quality coal ball mill, coal grinding mill machine

       Ball mill machine is the key equipment for recrushing the materials after they are primarily crushed. It is widely used for the dry type or wet type grinding of all kinds of ores and other grindable materials in cement, silicate product, new building material, refractory, fertilizer, black and non-ferrous metals and glass ceramic industry. The ore grinding methods of ball mill include dry type and wet type.

     Ball mill machine is mainly composed of feeding part, discharging part, rotary part and driving part which includes reducer, small drive gear, electrical machine and electronic control. The hollow shaft uses steel casting, the inner lining can be dismantled and changed, and the rotary rack wheel uses casting gear hobbing and inside the cylinder there is wear-resisting lining board which has fine abrasion performance. This machine has stable operation and reliable performance.

         Materials spirally and evenly go into the first cabin of the grinding machine through the feeding hollow shaft from the feeding device, and inside the first cabin, there are ladder lining boards or ripple lining board in which there are many steel balls with different specifications. The cylinder rotates and produces eccentric force to bring the steel balls to a certain height, and then the steel balls will fall down to impact and grind the materials. After being coarsely ground in the first cabin, the materials will go through the single-layer partition board and into the secondary cabin in which there are flat lining board, and in the lining board there are steel balls to further grind the materials. Finally the powdery materials will be discharged from the discharging grating bar to complete the powder grinding process.

The grinding balls

           Zhejiang Tongli Heavy Machinery Manufacturing Co.,ltd is specialized intechnology R&D, engineering consultation , equipment debugging, engineering contracting and related technical services for manufacturing cement, building material, mining, environmental protection, metallurgy, chemical equipment. Tongli Heavy Machinery  Co.,ltd established in 1958year, is a member of the China Building Material Machinery Association, a leading enterprise of China Cement Machinery, on the vendor of designated manufacturers for coal industry mechanical and electrical equipments, ISO9001:2008 accredited and accredited as a high-tech & new technology enterprise of Zhejiang Province, national designated “defend the contract heavy credit enterprise”, modern enterprise of national top ten cement grinding system of technologies and equipment , at the top of cement equipment manufacturing in Zhejiang Province.

       The Tongli occupies 153800m2 and the construction area of the workshop is 85000m2,the maximum lifting capacity of a single head crane is 200t. The company is equipped with more than 100 sets of heavy machinery manufacturing equipments such asφ5.3×18m(The lifting capacity is 200t)digital control horizontal lathe, φ5.5×18m lathe for machining shell, φ8m heavy digital display vertical lathe, φ8.0m heavy hobbing machine, 14×5m CNC vertical milling & boring machine, 3.4×10m CNC gantry milling & boring machine, 120mm digital control plate bending rolls, φ6.5×20m large size annealing furnace, φ6.5×20m sand blasting room, 1800t four columns hydraulic press, 10t electric arc furnace, etc, the integrated machinery processing ability is very strong.

          After working hard for more than 56 years, the company has the first-class science and technology development centers and craftsmen team who have much experience and skilled technology, specially manufactures series of cement machinery main equipments with independent intellectual property such as slag vertical mill, raw material vertical mill, cement vertical mill, coal vertical mill and rotary kiln, cement mill, wind swept coal mill, dryer, etc; in the meantime, manufactures the equipments and large- sized structural workpieces such as compound fertilizer, mining, power generating, sewage sludge (waste)incineration systems, etc, the products are exported widely toover 1000 companies from sixty or more countries such as Germany, Russia, Brazil, Egypt ,Iran, Bangladesh, Pakistan, Turkey, Myanmar, Vietnam, Columbia, Bolivia, South Africa, etc.