What are the differences in sand making effects between impact breaking and counterattack breaking?

In the sand making industry, different crushing techniques are employed to transform raw materials into usable sand. Impact breaking and counterattack breaking are two common methods used in sand making machines. While both methods involve the use of impact to crush materials, they differ in terms of crushing mechanisms and resulting sand quality. This article explores the differences in sand making effects between impact breaking and counterattack breaking.

Impact Breaking:

Impact breaking, also known as impact crushing, involves the use of a rotating impact crusher to crush materials. The crusher consists of a rotor with hammers or blow bars that rotate at high speeds. As the rotor rotates, it impacts the raw materials, causing them to break into smaller particles. The force of impact crushes the materials and shapes them into cubical particles, which are ideal for concrete and asphalt applications.

Counterattack Breaking:

Counterattack breaking, also known as counterattack crushing, is a different crushing technique used in sand making machines. In this method, the raw materials are crushed between a moving jaw and a stationary jaw. As the moving jaw approaches the stationary jaw, it compresses and breaks the materials. The crushed particles are then further reduced in size as they pass through a series of crushing chambers.

Differences in Sand Making Effects:

1. Particle Shape:

Impact breaking produces a cubical particle shape, which is preferred for concrete and asphalt applications. The high-speed impact between the hammers and the raw materials results in a uniform particle size distribution. On the other hand, counterattack breaking tends to produce a more elongated particle shape. The jaw crusher's crushing mechanism causes the particles to be elongated, which may not be ideal for certain applications.

2. Crushing Efficiency:

Impact breaking is known for its high crushing efficiency, as the impact force can crush materials quickly and effectively. It can handle a wide range of raw materials, including hard and abrasive stones. Counterattack breaking is also efficient, but it may require more energy to crush materials due to the rubbing and compression involved.

3. Maintenance and Wear:

Impact breaking machines generally require less maintenance compared to counterattack breaking machines. The impact crusher's design allows for easy replacement of worn-out parts, such as hammers and blow bars. In contrast, counterattack breaking machines have more complex components, including jaw plates and liners, which may require regular maintenance and replacement.

4. Noise and Vibrations:

Impact breaking machines tend to produce more noise and vibrations during operation compared to counterattack breaking machines. The high-speed rotation of the rotor and the impact force can create significant vibrations and noise levels. Counterattack breaking machines, on the other hand, operate at lower speeds and produce less noise and vibrations.

Impact breaking and counterattack breaking are two different methods used in sand making machines. Impact breaking produces a cubical particle shape and is efficient in crushing a wide range of materials. Counterattack breaking, on the other hand, tends to produce an elongated particle shape and requires more energy for crushing. The choice between impact breaking and counterattack breaking depends on the specific requirements of the sand making process, including the desired particle shape, crushing efficiency, maintenance, and noise levels.