Faced with a wide variety of crushers on the market, are you worried about what crusher to buy? Are you worried about the low production efficiency of your crusher? If you want to really solve these problems and improve the efficiency of crushing equipment, you need to have a comprehensive understanding of the characteristics of the crushed materials, the methods of material crushing, the classification of crushing equipment, etc.
When selecting a crusher, you should fully consider the type, hardness, inlet and outlet particle size, output and construction site of the crushed materials.
1. Materials Type And Hardness
The type and hardness of materials are the first factors to consider when choosing crushing equipment. Different types of materials will have different hardness and structure, which will have the primary limitation on the selection of crushing equipment.
The hardness of materials indicates the hardness of the material, which is directly related to the fragility of the material. It is usually expressed by Mohs hardness and is divided into 10 levels. The higher the level, the harder the material, the greater the difficulty of crushing, and the higher the requirements for crushing equipment.
Fragility indicates the physical property of whether the material is easy to be crushed. The factors affecting fragility mainly include the strength, hardness, density, structure, water content, viscosity, cracks, surface conditions and shape of the material.
The moisture content of the material will also affect the selection of the crusher. When the moisture content is too high, the fine-grained material will clump or stick to the coarse-grained material due to the increase in humidity, reducing the discharge speed and productivity. In severe cases, it may even cause blockage of the discharge port, affecting normal production.
According to the different structures and working principles, the commonly used crushing machinery mainly includes jaw crushers, impact crushers, hammer crushers, cone crushers and roller crushers, etc. Each product will be divided into different specifications and models according to specific production requirements. Although there are many types of crushing machinery, according to different force application methods, there are methods such as crushing, splitting, folding, impact crushing and grinding for material crushing. Before choosing crushing equipment, customers must first determine the crushing force application method based on the material properties of the particles, the crushed products, and the requirements of the particle size, and then determine the crushing equipment model. It is mainly divided into the following situations:
1. Hard materials with large or medium particle sizes are generally crushed and impact crushed, such as jaw crushers, toothed roller crushers, etc.
2. Materials with strong abrasiveness are generally crushed, and the surface of the crushing tool is smooth.
3. Materials with weak abrasiveness are crushed by impact, impact, and grinding, and the crushing tool has sharp teeth.
4. Hard materials with small particle size are generally crushed by crushing, impact, and grinding. The surface of the crushing tool is smooth without teeth, such as a double-roll crusher.
5. Tough materials are generally sheared or struck quickly, such as a hammer crusher.
6. Powdery or muddy materials should be ground, impact crushed, or crushed, such as a ball mill.
7. Multi-component materials are crushed selectively under impact, and multiple force fields can also be used in combination.
2. Feeding And Discharging Particle Size
The feed and discharge particle size is used to determine the crushing equipment type and models.
If the content of coarse particles (large dry discharge port size) in the crushed material is high or the ratio of the largest block of the feed to the width of the feed port is large, the crushing ratio (the ratio of the particle size of the material before crushing to the particle size of the material after crushing) that the crusher needs to achieve is large, so the productivity is reduced; if the content of fine particles (close to or smaller than the discharge port size) in the crushed material is high or the ratio of the largest block of the feed to the width of the feed port is small, the crushing ratio to be achieved is small, so its productivity is correspondingly improved.
If the feed particle size is large and the discharge particle size is small, secondary crushing or multi-stage crushing is often required. If the particle size of the crushed material is small, multi-stage crushing is generally not required. Jaw crushers and some hammer crushers are generally used as primary crushing, while impact crushers, cone crushers, roller crushers, and hammer crushers are generally used as secondary or even tertiary crushing.
3. Processing Capacity
Capacity is also an important indicator for determining crushing equipment. It is generally understood that the higher the output, the larger the stone crusher specifications, and the corresponding input and output will increase. The crusher capacity ranges from 10 tons per hour to 1000 tons per hour. Customers should choose what kind of equipment to use and how to arrange the production line according to their specific requirements to be more reasonable and cost-effective.
4. Construction site
The specific conditions of the construction site are the most direct factors affecting the selection of crusher equipment. For example, the construction site size, crushing equipment placement, etc., all affect how to design the crushing equipment configuration.
The crusher industry in the market is now highly competitive and has a variety of stone crusher products. Baichy Machinery has a history of more than 20 years. It not only produces a full set of crushing and sand making equipment, but also provides EPC project general contracting services, including plant site selection and construction, production line design and installation, and production and operation technical training. Welcome to consult online to get your exclusive plant construction plan.
People Also Frequently Asked For - FAQ
A jaw crusher is a large machine that uses compressive force to break down large materials into smaller pieces. Jaw crushers are often used in the primary stage of a crushing circuit in industries such as mining, quarrying, and recycling.
Impact crushers are named after the method they use in reducing larger blocks of rocks to smaller grain sizes.
A cone crusher is a cylindrical machine with a conical head that uses compression to break down large rocks, construction rubble, and other hard materials into smaller pieces.
2024-08-02
86-15093113821
86-15093113821
