Double roll crusher is composed of two separate drive roller, squeeze rolling mill shear force and rotation relative to the broken material, also called roll crusher. Double roll crusher, crushing high hardness less ore, rock and refractory materials. Double roll crusher in the refractory broken machinery more than excellent effect. Refractoriness is not lower than 1580 ℃ for a class of inorganic non-metallic materials. Refractory materials are widely used in industry metallurgy, chemical, petroleum, machinery manufacturing, silicates, power and so on, roll crusher, the largest amount, jaw crusher in the metallurgical industry, accounting for 50% to 60% of total output. The physical properties of refractory materials include structural properties, thermal properties, mechanical properties, performance and job performance. Refractory structural properties include porosity, bulk density, water absorption, air permeability, pore size distribution. Refractory thermal properties include thermal conductivity, thermal expansion coefficient, specific heat, thermal capacity, thermal conductive coefficient, thermal emission rate. Mechanical properties of refractories include compressive strength, tensile strength, flexural strength, torsional strength, shear strength, impact strength, abrasion resistance, creep resistance, adhesive strength, elastic modulus. Performance refractories include refractoriness, load softening temperature, reheating linear change, thermal shock resistance, slag resistance, acid resistance, alkali resistance, water resistance, anti-CO erosion resistance, electrical conductivity, oxidation resistance Wait. Double roll crusher is very wearable, grinding rolls on its optional wear plates, wear plates using advanced wear-resistant materials, continuous service life of up to a year or more, double roll crusher, wear serious , remove the cover can be replaced. With China now our existing infrastructure efforts continue to increase, making the investment sand and gravel has become a hot topic. So now people are beginning to consider how they could buy their own crusher equipment, Beijing crusher, such a problem. Mainly from what areas? Mining machinery and equipment for the user at this time do not know hesitation, in the end choose what kind of crusher equipment will bring them good effective? Here we are for the next how to choose the crusher? A level of production determines the size of how much you need crusher models, in general, to be, the greater the required output type crusher equipment, the greater the case if the user needs is too large, you can purchase Model larger crusher equipment, this time in relation to consider purchasing equipment and maintenance costs to be much the same as purchasing a few small crusher can also achieve production of user requirements. Second, the water content of the stone crusher size but also on the type of selection play a role. If the water content too large, the crusher equipment blocked, this technology will have an impact on production. China Metallurgical Heavy Industries crusher equipment designed to prevent clogging of the function, to avoid such a situation arise. Mentioned above it is about how to choose our stage crusher specific selection requirements are now confused business is not already found their way to choose it? Beijing North ore crusher _ _ public into metal crusher from Shenyang North Mine Zhongcheng machinery Limited. Beijing North ore crusher _ _ public into metal crusher Shenyang North Mine Zhongcheng equipment Limited (sybkzc.com) (www.sybkzcjq.com) this year introduced a new upgrade, the above picture is for reference only, please dial this page or on the telephone picture to obtain the latest information, contact: Yang Zhongbin.