Solving the problem of processing recycled materials for high hardness concrete with exclusive mobile crushing equipment supply

With the acceleration of urban renewal and infrastructure upgrading, the emission of C60-C80 grade high hardness concrete recycled materials has been increasing year by year. Its high hardness and high impurities have put many recycled aggregate enterprises in the dilemma of "low crushing efficiency and fast equipment wear". As a service provider specializing in the research and supply of crushing equipment, we have launched a dual roller crusher combination solution through more than a thousand practical verifications, accurately solving the difficult problem of processing high hardness concrete. Currently, the equipment is in stock and can respond to the production needs of enterprises at any time.

Previously, the C80 concrete used for bridge demolition was treated with a hammer crusher, and the hammer head had to be replaced in 3 days. The maintenance cost for 1000 tons of material exceeded 20000 yuan. After switching to their double roller crusher, the roller skin can be used for over 800 hours and the processing capacity has increased by 40%. ”At the production site of the factory, two roller crushers operate in series. The pre iron removed concrete blocks are first subjected to rough crushing and volume reduction by the first stage roller, and then precisely controlled by the second stage roller. The final output of 0-5mm recycled sand accounts for more than 70%, with a needle like content of less than 8%, fully meeting the sand standards for masonry mortar.

The reason why the double roller crusher can become the "exclusive weapon" for high hardness concrete lies in its unique technical advantages and combination logic. The roller crusher we supply adopts vacuum casting high chromium alloy roller skin, with a dense and wear-resistant metallographic structure. Compared with ordinary roller skin, its service life is extended by 40%, and it can also operate stably in the face of C80 grade concrete. Two devices are connected in series to form a complete process of "coarse crushing+fine crushing". The first level equipment quickly crushes large blocks of concrete to below 30mm by increasing the roller spacing and increasing the extrusion force; The secondary equipment relies on a roller spacing adjustment system with a precision of ± 0.1mm to accurately control the discharge particle size, avoiding the problem of traditional single equipment being either unable to break or over crushed.

In terms of environmental protection and economy, this dual machine combination demonstrates outstanding advantages. The equipment adopts a fully enclosed crushing structure, with a dust emission concentration of ≤ 10mg/m ³, far below the national standard of 30mg/m ³. Combined with low-noise operation design, it can meet environmental protection requirements even in urban demolition sites. In terms of energy consumption, the motor power matching has been optimized, and the unit energy consumption is reduced by 15% -20% compared to traditional impact crushers. The actual test data of a customer in Hebei shows that after adopting the double roller scheme, the crushing cost per ton of recycled material has been reduced from 18 yuan to 12 yuan, and the annual processing of 50000 tons of material can save 300000 yuan in cost.

Our dual roller combination can also be flexibly configured for different scene requirements. For small-scale community level recycling projects, an economical combination with an hourly production capacity of 20-30 tons occupies only 30 square meters and can meet basic production needs with a simple magnetic separation device; For medium and large-scale regeneration bases, the high-efficiency combination with an hourly production capacity of 100-200 tons is equipped with an intelligent hydraulic adjustment system, with overload protection response time ≤ 0.5 seconds, which can achieve remote control and unmanned operation. After adopting this set of equipment, a sand and gravel factory in Gansu has not experienced unplanned shutdowns for 18 consecutive months, with a comprehensive utilization rate of 92%.

The current "14th Five Year Plan" for the development of circular economy clearly requires the improvement of the utilization rate of construction waste resources, and the efficiency of high hardness concrete treatment is the key breakthrough point. Unlike suppliers in the market who sell easily, we promise to provide lifelong supply of vulnerable parts such as roller skins, with a fault response time of no more than 24 hours.

Whether you are a start-up company that has just entered the field of recycled aggregates or an established manufacturer that needs to upgrade equipment, you can always contact us when facing the problem of processing recycled materials for high hardness concrete.