Production line scheme suitable for soft rocks such as limestone, coal gangue, shale, etc.
Quarry Crushing for Aggregates Solution
Solid Waste Disposal Solution
Metal Ore Crushing for Dressing Solution
Mineral Grinding for Powder Solution
Sand, gravel or crushed stone manufacturing is an indispensable and important process in construction, road, water conservancy and other projects. Aggregate, as the basic material in engineering, the quality has decisive impact on engineering quality, construction efficiency, cost control and so on.
The process of sand&stone aggregates making includes feeding, crushing, screening, conveying and other parts. In crushing process, it is necessary to choose appropriate crushing equipment according to different ore characteristics and engineering needs, such as jaw crusher, cone crusher, impact crusher, sand making machine and so on. In addition, the aggregates quality needs to be strictly controlled to ensure it meets the engineering requirements.
With the development of global infrastructure construction, the demand for aggregates is steadily increased among the world countries. At the same time, the sand&stone aggregates making industry is also facing strict environmental requirements and energy consumption limits, so in order to achieve green production and sustainable development, it is important to choose high-quality sand& stone aggregates making equipment.
Sandmine Machinery provides you professional and reasonable one-stop solutions for sand &stone aggregates making, which can significantly reduce operating costs, improve project quality and construction efficiency, and bring considerable economic benefits for project.
Production line scheme suitable for soft rocks such as limestone, coal gangue, shale, etc.
Production line scheme suitable for hard rocks such as river pebbles, basalt, and granite
This process is for reference only. Depending on different material, usage and discharge size, we can customize the process and configure appropriate equipment for you.
Material disposal plan
Limestone is a kind of ore with main component of calcium carbonate (CaCO3) , the Mohs hardness is 3, compressive strength is between 29-245 mpa, density is 2.93g/cm3. After mining and crushing treatment, limestone can form various size particles, such as stone, sand, and can be widely used in different fields. It is an important building material, can be used to manufacture cement, lime, mortar and other building materials; it is also an important chemical raw material, which can be used to manufacture glass, ceramics, fertilizers and other chemical products; it can also be used to smelt metals, such as iron, steel and so on.
River stone is a kind of silicate mineral with hard texture, strong corrosion resistance, strong wear resistance and stable chemical properties. Its main component is silica, with Mohs hardness about 7, compressive strength is 600kg/m2 or more, bulk density is 1.85t/m3. River stone resources are abundant, the collection cost is relatively low, and the application value is high. Natural river stone can be made into concrete aggregates after a series of processing, such as crushing, sand making and screening, which is widely used in water conservancy and hydropower, highways, high-speed railways, bridges, airport runways, municipal engineering, high buildings and other fields.
Basalt is a basic extrusional rock, the mineral composition is mainly composed of basic feldspar and pyroxene, the Mohs hardness is 5-7, compressive strength is 147-294 mpa, and density is 2.8-3.3g/cm3. Basalt has a wide use range, such as basalt is a good raw material for the production of "cast stone", after melting casting, crystallization treatment, annealing and other processes, it can form a new material that is harder and more wear-resistant than alloy steel, more corrosion-resistant than lead and rubber; basalt is a good stone for building roads, railways and airport runways. It has the advantages of strong compression resistance, low crushing value, strong corrosion resistance and strong asphalt adhesion.
Granite is an intrusive rock in acid magmatic rocks, the main minerals are quartz, potassium feldspar and acid plagioclase, the Mohs hardness is about 6, compressive strength is 100-250Mpa, density is about 2.65-2.80g/cm3, with hard texture, ultra-high strength, wear resistance, corrosion resistance, has the title of "king of rocks", is the best building material. It can be used to build bridges, dames, seaports, roads, railways, fine grained granite can be polished or carved as a decoration or art; because of its strong acid resistance, it can also be used for acid-resistant linings and containers in chemical and metallurgical production.
Coal gangue is the solid waste discharged in the process of excavation, mining and coal washing, which is black and gray, with low carbon content, harder than coal, and the main chemical composition is alumina and silicon dioxide. Its Mohs hardness is about 3, the compressive strength is 5-100Mpa, and the density is 1.10-1.35g/cm3. Coal gangue is mainly used in the production of gangue cement, concrete lightweight aggregate, refractory brick and other building materials, and can be also used for coal powder recovery, coal and gangue mixed combustion power generation, production of crystalline aluminum chloride, water glass and other chemical products and precious rare metals extraction, can also be used as fertilizer.
Commissioning time : 2021
Location: Henan, China
Material: Granite
Finished size: 0-5mm, 5-10mm, 10-25mm
The customer is a large local cement enterprise in Henan Province, which has actively expanded new business in recent years and invested the construction of aggregates production line. After careful consideration and comparison, they chose us. The project is carried out in a fully enclosed factory, which has good environmental protection effect and little pollution to the surrounding environment. We have designed the multi-stage crushing + multi-stage screening process for the customer, the grading is reasonable, the finished material quality is good, which can meet the national standards, is a best-selling product in the market.
Commissioning time : 2013
Location: Gansu
Material: Feldspar
Finished size: 0-5mm, 5-16mm, 16-31.5mm
All the equipment for the project is supplied exclusively by Sandmine, and the finished products are sold to the surrounding commercial concrete mixing plant. Due to the good quality of the finished product, the grade is reasonable, so the products are in short supply, and it is a highly profitable project. Sandmine equipment are all made of high-quality raw materials, processed by precision equipment, with stable performance, long service life, low maintenance cost, and the whole process is controlled by automation which make the operation very easy. The customer was highly satisfied with the effect and purchased more Sandmine products again in another project.
Commissioning time : 2020
Location: Malaysia
Material: River stone
Finished size: 0-5mm artificial sands, 10-20mm, 20-31.5mm aggregate
The production line adopts the classic configuration of jaw crusher + cone crusher + sand making machine, using the principle of layer crushing and stone to stone crushing, with both functions of shaping and sand making, with high efficiency, high capacity, excellent finished products shape and good comprehensive benefit. In addition, the production line also adopts advanced intelligent control system, which can realize real-time monitoring of the field operation status. Since the production, the operation is stable and reliable, and the failure rate is low. We are very satisfied with this cooperation, said the customer.
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