如何配置花岗岩生产线？

Granite is a high-quality building stone with uniform structure, hard texture, beautiful color, density of 2790~3070kg/m³, compressive strength of 1000~3000kg/cm², elastic modulus of 1.3~1.5x106kg/cm³, water absorption rate of 0.13 %, Shore hardness> HS70, specific gravity 2.6~2.75. For this kind of hard rock, the crushing process is generally used before subsequent use.

Granite is a hard rock with a saturated uniaxial ultimate compressive strength greater than 30MPa. For this type of rock, coarse crushing, medium and fine crushing and shaping processes are generally used to process raw materials to finished 产品. This article briefly introduces 如何配置花岗岩生产线？. It is also suitable for basalt, diabase, andesite and other materials that are difficult to crush or have a higher crushing cost.

How to Choose a Granite Crusher?

According to the different 产品 required, a crushing process can be divided into coarse crushing section, medium crushing section, fine crushing section and grinding section. 

General materials can be divided into three major types of process engineering according to the required 产品: coarse crushing + medium crushing, coarse crushing + medium crushing + fine crushing or coarse crushing + medium crushing + fine crushing + shaping. Shaping is generally to make the obtained product better in grain shape.

Commonly used crushed 产品 in the whole crushing process are as follows:

The 颚式破碎机 is used in the first crushing process of the crushing line. It can crush large particles with a compressive strength of not more than 320MPa to a size of 100mm~300mm.

The 冲击式破碎机 generally can process ores or rocks with a compressive strength of up to 350MPa under 500mm, and the crushed materials are cubic particles. The 冲击式破碎机 is generally used in the second crushing process of the crushing line, and can also be used as the first crushing process for materials with a small input.

The 圆锥破碎机 uses the principle of laminated crushing to form a protective layer of the material layer. It has the characteristics of reliable structure, high crushing efficiency, convenient adjustment, and economic use. The feed size is 13~369mm. Cone crushing is the same as impact crushing. It is often used in the second crushing process of the crushing line. It can also be used as the first crushing process for materials with small feed. However, the feed particle size of 圆锥破碎机 is generally smaller than that of counter-attack crushing.

The 制砂机 is suitable for crushing and shaping of soft, medium hard and extremely hard materials. It is generally used as the last process of the crushing sand production line, and the feed size is 35-60mm.

In addition to the main crushing equipment, some auxiliary equipment such as 振动筛s, feeders and conveyors are needed to complete the configuration and work of this production line.

Configuration of Granite Production Line

Due to the hard texture, the granite production line configuration generally needs to go through three stages, namely coarse crushing by 颚式破碎机, medium and fine crushing by 圆锥破碎机, and sand shaping by 制砂机.

Large pieces of granite material pass through the silo to the vibrating feeder for uniform feeding, and then enter the 颚式破碎机 for the first crushing. After the coarsely crushed material is screened by the 振动筛 as required, it is transported to the 圆锥破碎机 by the 皮带输送机. The machine performs the second medium and fine crushing.

After the medium and fine crushing, the circular 振动筛 is used for screening, and the larger particles are returned to the 圆锥破碎机 to be crushed again.

The materials that meet the requirements are sent to the 制砂机 for further crushing and shaping. If the materials need to be cleaned, they can be sent to the sand washing machine for cleaning.

Finally, the materials that meet the requirements are classified and packaged according to different particle size ranges.

The equipment configuration of the granite crushing production line is mainly determined according to the user's stone specifications and output and the use of the stone. The process is configured according to the production site. There are different types of crushing equipment, and different models correspond to different production capacity, feed size and discharge size. Therefore, the crushing equipment corresponding to the production capacity should be selected according to the required stone specifications, output and stone 产品, in order to obtain the most reasonable and economical production line.

Examples

The granite (or basalt) crushing production line with an hourly output of 600~700t, according to the configuration plan described above, can be equipped with equipment that can meet the hourly production task, specifically the silo——vibrating feeder GZD1500×6000——颚式破碎机 PE1200 ×1500-圆锥破碎机 HPC400 (2 sets)-circular 振动筛 3YZS2160 (2 sets)-制砂机 5X1145 (2 sets), each equipment transports materials through the conveyor belt.

Note: When the feed size is less than or equal to 320mm, the material can be directly crushed in the 圆锥破碎机, without the first stage of coarse crushing.

When choosing hard rocks such as granite, two considerations should be taken: first, the configuration of production line equipment should be selected according to the grain size of the finished product; second, matching production equipment should be selected according to the amount of production tasks. Ensure that the above two points can basically determine the production line process to ensure production efficiency.