Ball Mill Application Areas

1) Ball mill in cement grinding

Cement grinding is the final process in cement manufacturing, which cost the most electric power. Its main function is to grind cement clinkers into the required size. Ball mill can be used in this process.

2) Ball mill in silica grinding

Ball mill can grind silica into powder with the required size. Silica, also called silicon dioxide, is an oxide of silicon with a chemical formula of SiO2 and has been known for its hardness since antiquity. Silica powder is widely used in the production of glass for windows, drinking glasses, beverage bottles, and many other uses. The majority of optical fibers for telecommunications are also made from silica. It is a primary raw material for many whiteware ceramics such as earthenware, stoneware, porcelain, as well as industrial Portland cement.

3) Ball mill in limestone grinding

Ball mill can grind limestone into powder. Limestone often contains variable amounts of silica in the form of chert  or siliceous skeletal fragment, as well as varying amounts of clay, silt and sand sized terrestrial detritus carried in by rivers. Limestone powder can be used as filler in cpainting industry to enhance the performance of quality paints.

Raymond mill parts: grinding roller, grinding ring

Raymond mill parts includes grinding roller and grinding ring. And grinding roller and grinding ring are mainly made of the following two kinds of materials:

a) 65Mn

The durability of grinding roller and grinding ring made of 65Mn can be improved remarkably. 65Mn is characterized by high hardness, high wear resistance, and being magnetic. It’s mainly used in deironing-required powder processing industry. In addition to the major needs for iron. And its mechanical properties can be greatly improved after heat treatment, which makes it have high wear resistance and greatly improved toughness.

b) Mn13G2
Compared with 65Mn, the durability of grinding roller and grinding ring made of Mn13G2 is also improved. The water toughening treatment is conducted after casting pouring. Then, the casting becomes non-magnetic and has high tensile strength, toughness, plasticity, which makes the toothed plate more durable. When it is deformed due to severe impact and strong pressure during use, the surface hardening and the martensite takes shape to form a high wear-resistant surface layer. While with good inner toughness, even if worn to very thin, it can also withstand greater impact loads.

How to prolong the service life of Raymond mill?

Before the installation Raymond mill, the persons related to the operation should receive technical training and fully understand its operating principle, performance and regulations of. During the application of Raymond mill, some personnel shall be arranged to take responsibility of management from beginning to end.

To ensure the Raymond mill in a normal working condition, a Safety Operation System for the Maintenance of the equipment must be established. Meanwhile, it is necessary to have the required repairing tools, lubricant and grease, spare parts and accessories during the operation.

After some period of running, Raymond mill should be checked. The worn-and-torn parts, such as rollers, rings and shovels etc. should be repaired or replaced. Before and after the operation, a careful examination should be carried out for the connecting screws, bolts and nuts on the grinding rollers so as to find whether they are loose or sufficiently lubricated.

When their application time surpassing about 500 hours, all the rolling bearings in the roller sleeves of Raymond mill must be cleaned, and the damaged parts should be replaced. The oiling tool can be either a manual oiling pump or grease gun.

T130X Superfine Grinding Mill

T130X superfine grinding mill with innovative design is a new-type grinding machine evolving from the original patented product - TGM Super Pressure Trapezium Mill based on market research, feedbacks and suggestions of customers both at home and abroad. It's optimized on the foundation of TGM Super Pressure Trapezium Mill in function and structure.

Function:
The machine is mainly used in processing powder of mineral materials of metallurgy, building materials, chemical industry, mining, etc. It can grind non-flammable and non-explosive materials with moisture less than 6% such as Feldspar, calcite, talc, barite, fluorite, rare earth, marble, ceramics, bauxite, manganese ore, iron ore, copper ore, phosphate rock, iron oxide red, slag, slag, activated carbon, dolomite, granite, iron oxide yellow, bean cake, chemical fertilizer, compound fertilizer, fly ash, bituminous coal, coke, lignite, Ling U.S. sand, gold, red mud, clay, Kaolin, coke, coal gangue, porcelain clay, kyanite, fluorspar, bentonite, muddy green rock, leaf wax rock, shale, purple rock, Diego rock, basalt, gypsum, graphite, insulation material, etc.

Equipments:
The complete set of T130X grinding mill consists of mainframe, reducer, classifier, maintenance platform, blower, collector, electric controller, etc. And some auxiliary equipments such as jaw crusher, bucket elevator, electromagnetic vibration feeder and hopper, etc.

Working Principle:
Large materials are crushed by jaw crusher into required size for mainframe, then the crushed materials are elevated to the hopper by bucket elevator，then to the grinding chamber for grinding by vibrating feeder evenly and continuously. The powder goes upwards with the airflow, after separating by the classifier, those which can meet the fineness requirement enters into the collector through pipes for separating and collecting, and discharged from the discharged valve as finished products. The airflow is sucked into blower through wind recycling pipe at the upper part of cyclone power collector. And the closed airflow circulation system with negative pressure ensures the environmental health of production line site.

Construction Waste Disposal Equipment

Construction waste disposal and recycling technology has been very mature in foreign countries, but it hasn’t been well used in China. Nowadays, our construction waste recycling rate is technology is very low. To recycle cement, brick and tile, stone, rebar, glass etc., these materials should first be classified and crushed, and then they can be used effectively.

The collapsed houses and bridges in earthquake resulted in billions of tons of construction waste. But who would come forward to help dispose and recycle these large quantities of construction waste? This question remind the industry experts of Henan Liming Heavy Industry Science & Technology Co., Ltd. which is a large heavy machinery enterprise specializing in the production of large and medium-sized crushers, sand making machine, grinding mill. Liming Heavy Industry is not only a glistening pearl in domestic machinery manufacturing industry, but also shows its capabilities and momentum to compete with other enterprises during the development in recent years, which makes it also well-known in foreign machinery industry.

Liming Heavy Industry supplies many machinery equipments for the recycle and disposal of crushed construction waste. The first one is large jaw crusher. For large pieces of construction waste such as stone, cement block etc. they must first be crushed by jaw crusher and then be reprocessed. PCL vertical shaft impact crusher (sand making machine) can be used to crush small pieces of materials into fine particles. Besides, you can use. The newly reached and produced heavy equipment-mobile crushing- can provide quality services for customers and meet all their needs. Mobile crushing plant is mobile and flexible and can be equipped with motor system, occupy small area, enter the working site at any time and go to anther site after finishing the crushing operation. There is no doubt that Liming Heavy Industry equipment has provided the most intimate, convenient service for the recycle of construction waste in disaster area.

How to operate vibrating screen?

Firstly, the vibrating screen operator should read records, and conduct general inspection of vibrating screen equipment before work. Check tensioning extent of the V-belt, the oil level of vibrator, check the vibrating screen surface tension situation.

Secondly, vibrating screen should be stared according to the order of process system.

Thirdly, when working, use visual, hearing tests and screening exciter boxes work. After stopping touch the bearing caps and check bearing temperature rise situation.

Fourthly, vibrating screen should be stopped according to the order of process system. Except special requirements, prohibit to continue to sieve after stopping.

Finally, when shift relief, put down the state technology of the vibrating screen and discovery to duty records.

Grinding roller, grinding ring and spring of TGM trapezium mill

The innovative design of the grinding roller and grinding ring. Compared with Raymond mill, the grinding roller and grinding ring are designed in multi-stairs shape, which can reduce the speed of the material gliding between the trapezium mill roller and the grinding ring, increase the time of the material being grinded, and improve the fineness and output of the finished product.

Effective balanced and loaded spring. The trapezium grinding mill absorbs the merits of the Raymond mill and the suspension mill. The grinding roller assembly is connected with the horizontal spring through the pull-rod, producing the radial force which can avoid the wear and tear due to the large block of material entering into the grinding chamber, thus prolongs the service life of the equipment.

How MTW series trapezium mill works?

MTW series trapezium mill adopts several latest patent technology such as bevel gear overall drive, inner automatic Thin-Oil lubricating system, arc air channel etc.

MTW series European Technology Trapezium Mill is widely applied in mining, metallurgy, construction, chemical industry etc. They can process materials which are non-flammable, non-explosive, with Moh’s hardness below 9 and moisture below 6%, such as limestone, quartz, chrome oxide, calcite, bauxite, manganese, iron ore, barite, fluorite, marble, copper ore, phosphorite, slag, dolomite, granite, fertilizer, compound fertilizer, coal ash, soft coal, basalt, gypsum etc.

Working principle of MTW series trapezium mill:
The bevel gear drives the main shaft, which is connected to the roller hanger on the top. There are grinding rollers installed in the hangers and forming a swing support. The rollers rotate not just around the main shaft, but also around the grinding ring. Besides, rollers can rotate itself as well because of the friction. .A set of shovel are installed at the lower end of the quincunx-rack. While turning together with the rollers ,the shovels shed the stuff onto the gap between the rollers and the ring, and that’s where the stuff layer forms. The rotating rollers ,while turning together with the ring ,grind the stuff layer into powder. The classifier drives the blades in the rotary table through the speed motor to classify the powder. The turning speed of the impeller can be adjusted to the requirement of the fineness of powder products

The development of vertical mill

The first vertical mill is developed and manufactured by Germany in 1920s. It’s said that the first vertical works like grain grinding mill. Having overcome many disadvantage of ball mill, vertical mill has high efficiency and low power consumption. The roller compacted materials directly onto the millstone, so power consumption is low. Compared with ball mill, it saves energy consumption by 20% ~ 30%. Besides, vertical mill has many advantages like high drying ability, simple and reliable operation, the stability of product quality, occupation area, maintenance convenience, low cost and low noise.

In recent years, with the rapid development the R&D technology of grinding machinery, the technology of abroad vertical mill manufacturers has become very mature, and its technical advantages have become increasingly prominent. In this situation, the domestic grinding mill enterprises learn from the foreign successful experience, carry out major technological innovation and also re-launched their own new vertical mills with patented technologies. The vertical mill is gradually accepted in the domestic cement, power, chemical industry etc. become the industry preferred grinding equipment.


Limestone, limestone crusher, hammer crusher

Limestone introduction:
Limestone is a sedimentary rock composed largely of calcite, calcium carbonate (CaCO3). Limestone often contains variable amounts of silica or siliceous skeletal fragment, as well as varying amounts of clay, silt and sand sized terrestrial detritus carried in by rivers.

Applications of limestone include:
-The manufacture of quicklime (calcium oxide) and slaked lime (calcium hydroxide);
-Cement (concrete) and mortar
-An excellent building stone for humid regions;
-Common in architecture
-Pulverized limestone is used as a soil conditioner to neutralize acidic soil conditions;
-Crushed for use as aggregate—the solid base for many roads;
-Glass making, in some circumstances;
-Added to paper, plastics, paint, tiles, and other materials as both white pigment and a cheap filler.
-Toothpaste
-Added to bread and cereals as a source of calcium
-Used in blast furnaces to extract iron from its ore
-Medicines
-Cosmetics


The Common limestone crusher include:
Jaw Crusher, JC series jaw crusher, Impact Crusher, CS Cone Crusher, Hydraulic Cone Crusher, Spring Cone Crusher, HCS90 limestone Crusher, VSI Crusher (Vertical Shaft Impact Crusher), Hammer Crusher, mobile limestone crusher.

Jaw crusher parts

Jaw crusher parts: stable chemical composition, reasonable heat treatment, high wear resistance, high strength, quality assurance

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Movable jaw, jaw plate

The movable jaw body of jaw crusher is equipped with toothed plate, which makes it not easily damaged. When materials are being crushed, movable jaw can hinder materials dumping. Movable jaw is an important part of crusher and also have very complex structures. The movable jaw of Liming Heavy Industry is in welded structure. The shape and size of movable jaw mainly depend on two factors: one is the movable jaw force, the other is its manufacturing techniques and appearance. The former is to ensure the strength and rigidity of movable jaw. On the basis of meeting this requirement, the smaller the quality of movable jaw, the better, especially make the rotation center be as closer to the center of gravity as possible. Moreover, the techniques and appearance should be taken into consideration.

Edge plate

The edge plate is made from ZGMn13-2 material by pouring. And the water toughening treatment is conducted after casting pouring. Then, the casting becomes non-magnetic and has high tensile strength, toughness, plasticity, which makes the toothed plate more durable. When it is deformed due to severe impact and strong pressure during use, the surface hardening and the martensite takes shape to form a high wear-resistant surface layer. While with good inner toughness, even if worn to very thin, it can also withstand greater impact loads.

Toggle plate

Toggle plate has to be made of better materials since it endures great impact. For large crusher, 5CrMnM0 and 5SiMnM0V can be used, its toggle plate can be made of gray cast iron (HT15-33). With stable chemical composition, all these raw materials ensure mechanical properties of toggle plate. When impacted by external force greater than rated load. The toggle plate can quickly break off to protect the host and motor from damage. With combined style structure, toggle plate has the advantage that the worn toggle joint can be replaced with a new one while the toggle plate body can be still used, so as to save materials.

Spring seat, adjusting seat, tension rod

The discharge opening adjusting mechanism of jaw crusher mainly includes toggle plate, adjusting seat, tightening parts, etc., which is characterized in that the bottom of adjusting seat is equipped with tension rod and spring seat. There is a long slot in the middle of the side surface of spring seat, and raised enclosure bulkhead around the slot. The spring seat and adjusting seat integrate into one. The tension rod of tightening parts passes through the long slot, and one end of tightening parts spring is set up around the enclosure bulkhead while the other side is fixed on the tension rod through nut and gasket, which makes tightening parts and adjusting seat combine into one.