Sand-making machine, also known as impact crusher, is a common mineral processing equipment, which is mainly used for crushing all kinds of sandstone and processing sand. There are also many kinds of sand making machines, which are used in different fields according to different characteristics. On the sand making machine production line, there are other types of sand making machines and equipment, such as impact sand making machine, plate hammer sand making machine and the third generation sand making machine.
Different types of sand makers can get different types of sand products by processing different sand raw materials. These sand and gravel products can meet the needs of modern buildings, and sand making machines have also made great contributions to urban infrastructure and industry.
Second, the use of sand making machine
1, river pebbles and rocks (limestone, granite, basalt, diabase, andesite, etc.) produced by artificial sand. ), ore tailings and stone chips.
2. Production of building aggregates, road fabrics, cushion materials, asphalt concrete and cement concrete aggregates.
3. Machine-made sand production and stone molding in water conservancy and hydropower, high-grade highways, expressway, high-speed railways, passenger dedicated lines, bridges, airport runways, municipal works and high-rise buildings.
4. Pre-grinding and fine crushing process in mining field, crushing materials in building materials, metallurgy, chemicals, mines, refractories, cement, abrasives and other industries.
Third, the types of sand making machine
1, hammer sander
The main working principle of hammer sand making machine is that the rotor with hammer head smashes, impacts, shears and grinds stones through high-speed movement, and the whole sand making process is smooth and simple without blockage, with remarkable effect; Widely used in sand making, mineral processing, cement, metallurgy, chemical industry, building materials and other fields, the finished product has obvious particle size advantages, and it is a mining equipment widely used in stone crushing and shaping.
2. Jaw crusher
Jaw crusher, referred to as Ebou, is mainly used as coarse crusher and medium crusher. It breaks all kinds of ores and medium-sized bulk materials, and is widely used in mining, smelting, building materials, highways, railways, water conservancy, chemical industry and other industries. The maximum compressive strength of the crushed material is 320MPa.
3. Roller sander
Also known as double-roll sand maker, it is suitable for crushing raw coal (including coal gangue) in large coal mines or coal preparation plants. Mainly rely on the driving device by two motors, through the V-belt transmission to the sheave to drag the two rollers to rotate relatively to crush materials.
4. Vertical shaft impact sand making machine
The abbreviation of impact crusher, commonly known as sand maker, is a kind of high-energy and low-consumption impact crusher with international advanced level. Its performance plays an irreplaceable role in all kinds of ore fine crushing equipment, and it is the most effective, practical and reliable crusher at present.
Vertical shaft impact sand making machine is widely used to produce metallic and nonmetallic ores, cement, refractories, abrasives, glass raw materials, building aggregates, artificial sand making, river pebbles, rocks (limestone, granite, basalt, diabase, andesite, etc. ), tailings, stone chips, artificial sand making, building aggregates, road fabrics, cushion materials, asphalt concrete and cement concrete aggregates, and fine grinding of various metallurgical waste residues. It can be used with hydraulic jaw crusher to treat various metallurgical slag. Suitable for building sand and road sand.
5. Hydraulic unpacking sander
Hydraulic unpacking sand maker is improved from "river pebble sand maker". The traditional sand-making machine has no hydraulic power-assisted system, so it is very laborious to disassemble and maintain each time, which affects sand-making production. The work of the hydraulic unpacking sand maker is to crush the ore according to the principle of stone beating, which has the function of selective crushing. The crushed product has uniform particle size, mostly cubic stones, and is suitable for large-scale production of 50-300 tons/hour. Widely used in bridge construction, expressway construction, wharf and airport construction.
6, mobile sand machine
Mobile sand making machine is the product of the demand of the new era. Its main feature is that it can work in a mobile way to meet the needs of coarse crushing, medium crushing, fine crushing, ultra-fine crushing and screening of complex construction waste. The mobile sand maker can directly select the site and drive to the site without transportation, and directly reach the granularity of finished products, which is especially suitable for small crushing sites, construction waste treatment and machine-made sand production. At the same time, the mobile crushing station greatly reduces the investment cost, but increases the investment income. Widely used in road and bridge construction, mining and urban construction.
The mobile sand-making machine has the characteristics of reasonable matching between crushing equipment and sand-making equipment at all levels, smooth discharge in the whole process, reliable operation, convenient operation, high efficiency and energy saving. In particular, it has good operability, can be expanded with the raw material site or construction site, and can be combined in various ways to meet the needs of different materials.
7. Impact sander
Also known as the third generation sand maker, it uses the principle of impact crushing to crush materials. It is a finer crushing equipment than jaw crusher, which is mainly used for fine crushing operation in stone production line and cooperates with jaw crusher to crush. Impact crusher uses impact energy to crush materials.
Impact crusher can handle all kinds of coarse, medium and fine materials (granite, limestone, concrete, river pebbles, granite, basalt, iron ore, limestone, quartzite, diabase, etc. ) The side length is less than 500mm, and the compressive strength is less than 350MPa. It is widely used for crushing various minerals such as gravel yard, mining, coal mining, concrete mixing station, dry mortar, power plant desulfurization and quartz sand.
8. Rod mill sand making machine
Rod mill sand making machine is an efficient and energy-saving gravel sand making equipment, which saves 50% energy compared with traditional sand making machine. It is mainly used to manufacture hard and brittle materials such as abrasives, refractories, cement, steel sand, slag powder, copper ore, iron ore, gold mine, concrete aggregate, asphalt aggregate, and mineral raw materials such as feldspar, timely and river pebbles. When the cylinder rotates at a certain speed, the grinding body rises to a certain height and is thrown down under the action of friction and centrifugal force, so that the material is impacted and ground to achieve the purpose of making sand.