The Choice of Mine Crushing Materials

     Grading and screening refers to that dividing the materials into different levels of granularity, but their work and product particle size characteristics are not the same.The screening refers to that dividing the materials into different granularity with different size. In accordance with the geometric particle size separation strictly, it is not affected by the density of mineral particles.

     And grading refers to that dividing the materials into the small materials with different grades based based on the sedimentation speed of the particles. The settling velocity of the mineral particles is not only related to particle size, but also influenced by the density and shape of the mineral particles.

     Accordingly, there are smaller particle size and greater density materials existing in the same level, but also the larger particles of small size and large density. The greater the difference in density of the mineral particles, the particle size difference is more obvious in the same level.

     So in the production, we make hydraulic classification for the mixed materials with different particle size and density. In the classification process, each product often occurs coarse materials in fine materials and fine materials in coarse materials.The reason is that the grading operation is not a geometric particle size but hydraulic granularity material separation.

Eight Characteristics of Rotary Equipment Make its Life Longer

The rotary kiln system is a large-scale system requirements for rotary equipment, previously mentioned, which has many requirements for the kiln lining in the rotary kiln system. The rotary kiln equipment operating cycle is decided. Henan Hongxing is a professional manufacturer specializing in the production of rotary kiln equipment. This is a rotary kiln research team let us look at the characteristics of kiln lining.

　　1. The kiln lining is temperature resistant;

　　2. The kiln lining has good chemical stability;

　　3. The kiln lining has thermal stability;

　　4. Good wear resistance and mechanical strength;

　　5. Good leather performance;

　　6. Low lining porosity;

　　7. Low thermal expansion coefficient;

　　8. Accurate size, shape and tidy.

　　Under normal circumstances, these properties of the rotary equipment can be regarded as Evaluation standards refractories. Rotary kiln refractory is difficult to fully meet all the above requirements, but also due to the changes in conditions, the performance of their performance are subject to change.

　　Therefore, in the selection or evaluation of rotary kiln refractory,you must pay attention to adapt to the conditions of use and economic comparison.

　　Refractory cement industry kiln system chooses different varieties of refractory materials according to the conditions of use of the various parts of the system. We choose different varieties of refractory materials, and pay attention to its reasonable match, in order to achieve good results.

Dust Catcher

The classification of dust catcher
　　　The dust catcher has a lot of different types, different types of suitable material, different models to make the fineness of the material according to the customer requirements.

Performance characteristics of the dust catcher
(1) It is the static classification to break up the device, no moving parts, reliable and stable, which is conducive to the smooth running of roller press, and increase system throughput;
(2) Simple structure, long life wear parts;
(3) Use a small amount of wind, pressure loss is small;
(4) The product fineness can be adjusted by the wind speed, easy and reliable to adjust it;
(5) Have a drying function.
Second, the technical characteristics
1.Sorting accuracy. The powder adopts the national patent “eddy current rectifier”, rectifier airflow only increase compared with the rotor, the material in the sorting area get repeated washing, and finally the classification accuracy is high.
2.It is easy to operate. Cage rotor uses frequency stepless speed regulation. Wide adjustment range, easy adjustment, sensitive and reliable.
3.High classification efficiency. V-beaten separator area is set with multilayer grading board.
4.Wear parts need little maintenance, long life. The main vulnerable components of the powder imports the wear resistant steel, which effectively improve the service life. The whole motor makes dynamic balance correction and run smoothly in the entire speed range.

Some Key Notes on Efficient Concentrator

Efficient concentrator features:

(1)Adding flocculant can increase the sedimentation particle size of the solid particles, thus accelerating the sedimentation rate;

(2) Installation tilted plate shorten the mineral particles settlement to increase the size of the settlement;

(3) play the function of deposited mud flocculation, filtration, compression, and improve the handling capacity of the role;

(4) It is equipped with a complete self-control facilities.

Efficient concentrator machine working principle:

(1)The solid particles in suspension under gravity will occur sedimentation, the center rotation thickener concentrates the slurry by this principle.

(2) Continuous operation of the concentrator in the enrichment process, the pulp enters Tolerance pool gradually formes five different zones. Namely: clarify the area, the settlement area, the transition zone, concentrated area and slime area. Due to pulp and discharge, thus there is always a settling zone, the concentration of pulp is from free settling, but the main concentrated process are carried out in the concentrated area.

(3) The drive of concentrator machine: the driving force of the motor drives the spindle rotate with the hoist via V-belt, reducer coupling, and then are transmitted to the worm gear reducer. The pulp flow into the content pool through the hopper,and the solid particles in pulp sinks to the bottom of the pool by its own gravity, and the turning rake is pushed to the discharge port, clear liquid flows out.

Efficient crushing machine absorbs foreign advanced technology,and combine with the domestic industry specific working conditions and the development of the latest generation of high efficiency fine crusher for the crushing of medium hardness solid material in the cement industry, crushing limestone, gypsum, clinker, mixed materials. Phosphate can crush calcium, dolomite, perlite ore. It can be widely used in building materials, fertilizer, mining and refractories and other industrial sectors.

Efficient crushing machine features:

This advantages of the product: small materials particle size, uniform grain type, large production capacity, long life, and small supporting power, and change three broken into two crushing, process, simplification structure is simple, easy maintenance, and smooth running characteristics.

Efficient crushing machine works:

When work, the third generation sand making machine makes high speed rotation driven by the motor. When the materials enter the first crushing chamber, and it makes collision with the hammer impact crusher , and then enter the second chamber for further crushing, and finally the are discharged from the discharge port .

Efficient crushing machine

Efficient crushing machine absorbs foreign advanced technology, combined with the domestic industry specific working conditions and the development of the latest generation of high efficiency fine crusher, it is used for the crushing of medium hardness solid material in the cement industry, crushing limestone, gypsum, clinker, mixed materials. Phosphate can be crush calcium, dolomite, perlite ore. It can be widely used in building materials, fertilizer, mining and refractories and other industrial sectors.

Efficient crushing machine characteristics:

This product has: a small particle size, uniform grain shape, large capacity, long life hammer, supporting small power, and change three crusher for secondary crushing, process simplification, simple structure, easy maintenance, smooth running characteristics.

Efficient crushing machine works:

When work, the third generation sand making machine is driven by the motor, the high-speed rotation of the rotor material enter the first crushing chamber and crush with rotor plate of hammer impact crusher , and then enter the second crushing chamber, and finally discharged from the discharge port .

Efficient crushing machine advantages:

Equipment investment is lower than the same scale traditional technique and equipment 35% -50%, the output efficiency is higher 35% -50% than the same scale traditional process equipment (limestone, for example: a product particle size ≤ 5mm more than 85%). Long-running maintenance costs 35% -50% lower than the same scale traditional process equipment, crushing machine is widely used in granite, basalt, limestone, river gravel, cement clinker, quartz, iron ore, bauxite and other minerals fine crushing.

Raymond Mill Notes

Raymond Mill Notes

1.In order to make raymond mill work properly, we should formulate”equipment maintenance safe operation system in order to ensure the long-term safety of the Raymond mill running, at the same time, it is necessary to have maintenance tools and grease and appropriate accessories.

2.Raymond mill roller device needs to be replaced after being used for more than 500 hours or so, the roller kit rolling bearing must be cleaned, and the damaged parts should be replaced, refueling tool can be used to manually pumps and grease gun.

3.Raymond mill in the using course shall be cared by fixed personnel, the operator must have a certain level of technology. Before the installation of Raymond mill, the operator must carry out the necessary technical training to understand the principle of Raymond mill performance, and understand the operating procedures.

4.After the Raymond mill is used for some time, it should be checked. At the same time, you should make maintenance, repair and replacement of wearing parts of the grinding roller, grinding ring blade, roller device connection bolts and nuts before and after use, which should be carefully examined to see if there are loose phenomenon, and add a little grease.

Jaw Crushing Plant

Mobile jaw crusher plant features:

The mobile jaw crusher station is one of the latest rock crushing equipment, it is mainly used in metallurgy, chemical industry, building materials, utilities often need to move material processing operations, especially for highways, railways, hydropower engineering and mobile stones. The users can form a variety of configurations, depending on the kind, the size and raw materials of finished materials adopt different configuration. mobile jaw crusher station greatly expands the field of coarse crushing concept of operations.

1.Mobility. It can directly deep the job sites, and it is suitable for ordinary road, but also facilitate to mobile in rugged and poor road environment.

2.Compact structure, easy to use. Integrated vehicle equipment greatly reduce the floor space. Comes with the vehicle-mounted generator sets, motor and control box, it is convenient to field operations; the supporting vehicle is installed with support equipment, site station is quick and easy.

3.Save costs and reduce costs. mobile crushing plant can make on-site crushing for the materials, to avoid the turnover aspects of the materials, and it greatly reduces the transportation costs of materials.

4.Higher applicability. Mobile crushing plant can not only run independently,but also be a combination of crushing two-stage and screening system, or crushing, secondary crushing, crushing three-stage crushing and screening system; according to the scene, you need to make the first crushing and sieve or first sieve then crushing system.

5.Stable performance and easy maintenance. mobile crushing plant is equipped with crusher,feeder and vibrating screen with stable performance, easy maintenance; materials transportation is equipped with conventional belt conveyor s, simple operation, mature technology, less investment, high return.

6.Flexible configuration. In accordance with the requirements of the customer job site, materials, grain type mobile crushing station especially is tailored to provide customers with more equipment for production needs, stand-alone, multi-product modular belt conveyor self-contained.

Indirect Fired Rotary Kiln/Iron Ore Concentration plant

The indirect fired rotary kiln has a compact and simple structure, reasonable layout, improve the materials and thermal heat exchange rate, so that the material drying effect is more better; less investment foundation, which is only half of the same production of single cylinder dryer, and reduce the time investment. It can be used in iron ore concentration plant. It is featured by reliable operation, low energy consumption, high thermal efficiency; at the same time, it is easy to achieve automatic control, reduce operator labor-saving resources.

The indirect fired rotary kiln is mainly used for drying certain humidity and particle size range of particulate materials. Such as sand, slag, cinder, small particle size clay, and the materials that are not afraid of high temperature and dust soiled small particulate materials. After drying, the moisture content of materials can reach 1-0.5%.

The working principle of indirect fired rotary kiln

Materials from the feed device enter the inner layer of the rotary drum, downstream drying, the materials in the inner copy board are constantly scattered and make spiral marching to achieve heat exchange. And the materials that move to the other end of the inner layer enter the middle for countercurrent drying.

The features of indirect fired rotary kiln

1.Equipment investment is one sixth of imported products.

2.The final moisture of materials ensures that less than 0.5%, and it is the preferred product for dry mortar and slag powder production line.

3.Self-cylinder insulation and thermal efficiency is more than 70% (the traditional single-cylinder dryer thermal efficiency is only 35%), which can improve the thermal efficiency of 35%.

4.The fuel can be adapted to the coal, oil, gas. It can bake block material, pellets and powder materials with less 20mm.

5.Single cylinder dryer reduces the area of about 50%, construction investment is reduced by about 50%, and 60% power consumption.

6.You can easily control the final moisture indicators according to user requirements.

7.The outlet temperature is low, the dust removal equipment can be used for a long time.

8.Use wheels to drive.

Original link: http://www.crusher-export.com/cement/n241.htm