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Construction waste crusher

In recent years, the amount of construction waste generated by urban construction has increased, with Beijing years ago, for example, the annual emissions of construction waste are 10 million tons. Construction waste disposal generally use landfill, in addition to the need for a large number of consumption field, take up valuable land resources, there are energy consumption, pollution and other negative factors. Therefore, how to use both imminent, but also need to long from the social and technical issues.

After the construction waste is broken, the waste is sorted, removed or shredded, and most of it can be reused as a renewable resource, such as scrap steel, scrap wire, waste wire and various scrap parts, etc., sorted, concentrated and re-opened After the re-processing can be made into a variety of steel; waste bamboo wood can be used in the manufacture of artificial wood; brick, stone, concrete and other waste crushed, can be on behalf of the sand, for mortar mortar, plaster mortar Concrete cushion, etc., can also be used for the production of blocks, paving tiles, tile tiles and other building materials products.

Construction waste crusher process, due to the physical properties of the material itself, usually using two crushing, broken product size of 0-10mm accounted for about 25%. In order to improve the production of fine aggregate, the use of two crushing for the three crushing, so that most of the broken products to 0-10 the following, is a very effective means. However, in the specific technical process, encountered a complex process, process layout difficulties, power consumption, investment is too large and so on.

To this end, SBM in the original equipment on the basis of several tests to improve the introduction of Construction waste crusher special models. The equipment can achieve multi-level crushing for a crushing, but also to meet the needs of grain-structured, for the construction of waste aggregate recycling process to provide the perfect solution, is the best choice for construction waste crushing equipment.

First, recycled concrete aggregate

It is understood that recycled aggregate used for road grassroots, or only recycled coarse aggregate preparation of concrete, and we regenerate coarse and fine aggregate are used to prepare concrete, improve recycling efficiency, and achieved good results. Among them, the regeneration of coarse aggregate: the surface wrapped with a certain amount of mortar and cement paste (cement stone), uneven, very rough, porous, multi-angular, grain type is better. The gradation of the recycled coarse aggregate is basically within the allowable range of the gradation standard and is a continuous gradation of 5 to 25 mm.

Recycled fine aggregate: high content of fine particles (hydrated or unhydrated cement particles, mortar powder and mineral admixture), good grain shape (mostly multi-faceted cubes, triangles, polygons, cubes or spheres) , Needle-like content is low, rough surface, rugged.

Second, the production of renewable green brick

At present the country has been put into production of waste brick production line about 10, the scale of production from 30 million (standard brick), the annual ~ 150 million (standard brick) / year, the total output l0 billion or so, only China Sintered clay brick production of 700 billion pieces of 1/700, so there is a huge development prospects.

The benefits of the construction waste (the current 100 million tons of construction waste), if the formation of industry, will produce an annual comprehensive economic benefits of about 450 billion yuan, while a significant social and environmental benefits, construction waste resources and industrialization potential Must do.

Construction waste can be a reasonable recycling of resources, energy conservation, environmental protection, the development of small and medium enterprises, to provide employment opportunities, social, environmental and economic benefits, application prospects. To solve the construction waste disposal, construction of aggregate shortage is an effective way to resource recycling, to achieve the recycling of resources.

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Crusher manufacturer in China

Crusher is amongst the leading things of SBM. In accordance with user feedback usage info , combined with advantages and qualities with sand and gravel crushing and screening experts made to interact to make up a brand new sort of energy-efficient fine crusher machine ( sand maker ) its standard me is usually to adjust to the present ( artificial sand ) market, may perhaps be the hammer crusher, sand making machine straight-impact option , the sand maker functionality, reliability , simplify processes , very simple structure, straightforward maintenance.

Successful Case

The principle of construction waste crusher

Construction waste crushing process, due to the physical properties of the material itself, usually using two-stage crushing, broken product size 0-10mm accounted for about 25%. In order to improve the production of fine aggregate, the use of two crushing for the three crushing, so that most of the broken products to 0-10mm below, is a very effective means. However, in the specific technical process, encountered a complex process, process layout difficulties, power consumption, investment is too large and so on.

The construction waste is fed into the feed port of the crusher through the feeding device, and is stacked on the special intermediate bracket in the machine. The hammer runs in the gap of the middle bracket, crushes the large pieces continuously and falls and falls Of the small pieces of high-speed operation of the hammer to hit after the counterattack plate and crushed, and then fell to the whole area, the hammer in the whole area of ​​the material will be further refined, the material discharged. At the same time, in the homogenized area of ​​the liner is designed to return the reinforcement of the groove, the material mixed with the reinforcement after passing through these grooves were stuck out. Are the whole board to the hammer of the distance can be adjusted, the smaller the distance, the smaller the particle size, and vice versa the greater the particle size.

Advantages of construction waste crusher

Construction waste crushing production line is improved from the old hammer crusher on the basis of the combination of two hammer crusher, a reasonable combination of a whole, the appearance of construction waste grinder, practical and strong. Using the upper and lower two-stage double-rotor crushing principle.