Hammer Crusher

Preface: Hammer crusher is a kind of efficient crushing equipment, which crushes materials in the form of impact and is widely used in environmental protection, cement, chemical industry, electric power, metallurgy and other industrial sectors. The following is a detailed introduction to hammer crusher:

1. Overview of hammer crusher

Hammer crusher is a basic crushing equipment, which achieves the purpose of crushing by impacting and shearing materials with high-speed rotating hammers. It is usually divided into two forms: single rotor and double rotor, which can crush materials with a maximum particle size of 600~1800 mm to less than 25 mm. Hammer crusher has the advantages of simple structure, light weight, high production efficiency, uniform product particle size, low energy consumption, easy operation and maintenance, so it has been widely used in various industrial fields.

2. Structural composition of hammer crusher

Hammer crusher is mainly composed of box, rotor, hammer head, impact lining, screen plate, etc. Among them, the box is composed of lower body, rear upper cover, left wall and right wall, and the parts are connected as a whole by bolts. The rotor is the main working part of the hammer crusher, which is composed of main shaft, hammer disc, pin shaft, hammer head, etc. The hammer head is suspended on the hammer disc through a pin, and the working surface can be replaced according to the wear condition. The impact liner is located on the side wall of the crushing chamber, which plays a role of rebound and steering. The screen plate is installed under the rotor to control the particle size of the material.

3. Application field of hammer crusher

The hammer crusher is suitable for crushing various medium hardness and brittle materials, such as limestone, coal, salt, white ore, gypsum, alum, brick, tile, coal gangue, etc. In addition, it can also be used to crush fiber structure, elastic and tough wood, paper or crush asbestos cement waste to recover asbestos fiber, etc. It is also widely used in mining, construction waste crushing, construction waste scrap crushing, etc.

5. The advantages of hammer crusher mainly include:

a. Efficient crushing: It has high crushing efficiency and can complete the crushing of a large amount of materials in a short time.

b. Compact structure: The equipment is compact and occupies a small area, which can save space for process layout.

c. Strong adaptability: It can handle high hardness and large-block materials, and there is less stone powder during the crushing process.

d. Low energy consumption: Low energy consumption per unit product, which can effectively reduce production costs.

e. Easy operation: The equipment is easy to operate and easy to control, and does not require high skills from the operator.

6. Disadvantages of hammer crusher:

a. Fast wear of wearing parts: The main working parts such as hammer head, grate bar, liner, rotor, etc. wear quickly, and the wearing parts need to be replaced frequently, which increases the maintenance time and cost.

b. Easy to block: When crushing sticky and wet materials, the grate bar screen slits are easy to block, resulting in reduced production capacity, increased energy consumption, and accelerated wear of wearing parts.

c. Safety issues: If foreign objects such as non-breakable metal blocks fall into the crushing chamber, accidents may occur, affecting the normal operation and safety of the equipment.

d. Noise and vibration: Although the hammer crusher has relatively small noise and vibration when working, long-term operation may still have a certain impact on the working environment and operators.

PS: Hammer crusher is an efficient and practical crushing equipment with a wide range of applications and significant advantages. However, it is also necessary to pay attention to its shortcomings during use and take corresponding measures to improve and maintain it. With the continuous advancement of science and technology and the continuous development of industry, hammer crushers will be more widely used and developed.