As we all know, in the crushing process of stone, impact crusher and hammer crusher are more common secondary crushing equipment. They all use high-speed impact energy to crush the material. Because of the similarities in shape and the rotor structure, some customers think that the impact crusher is no different from the hammer crusher. In fact, there are great differences in the crushing cavity, wearing parts, discharge adjustment, rotor structure, etc. Here, the senior editor of Longjian Group shares with you the difference between the impact crusher and hammer crusher, and teaches you how to choose the secondary crusher equipment.

1. The difference between impact crusher and hammer crusher

1. The principle of use is different: the impact crusher relies on the hammer to impact crush the material into the crushing chamber from the bottom up, and throw the material onto the impact plate to crush again, not only the impact energy is large, but also due to the secondary crushing, The crushing effect is also better; and the hammer crusher hits the crushed material in the direction of falling into the crushed material. The main part of the crushing function is the hammer head, and the hammer head is a single crushing of the material, and the impact energy is limited.

2. The application range is different: the feed range of the impact crusher is 300mm-800mm, which can handle brittle materials and materials with higher hardness, and because the impact chute feed chute and impact plate can be equipped with heating devices, they can also Handle materials with high water content; while the feed size of the hammer crusher is ≤350mm, it can only handle materials with lower hardness. The hammer head wears fast when processing high hardness materials, and it is easy to block when processing high humidity materials.

3. Different ways to adjust the output particle size: the impact crusher can control the output particle size by adjusting the rotor speed, adjusting the gap between the impact plate and the grinding cavity, and the hammer crusher can only be controlled by replacing the bottom sieve plate The discharging granularity is very difficult and the cost is high.

4. The probability of wear of key crushing accessories is different: the main crushing parts of the impact crusher, the hammer, only the side facing the material is relatively easy to wear, the back and sides are not worn, and because the material is processed by a special process, even the welcome The probability of wear and tear on this side of the material is also very small, its metal utilization rate can be as high as 45% -48%; and the hammer head of the hammer crusher is in a drape state, and wear occurs on the top, front, rear and side Compared with the counterattack type, the abrasion is more serious, and the metal utilization rate of the hammer head is only about 25%.

Second, how to choose the impact crusher and hammer crusher according to comprehensive factors such as stone

1. The impact crusher has strong capability, the finished product has good particle size and basic gradation, and the output is easier to adjust and prevent clogging. Therefore, if the treatment is river pebbles, cobblestones, quartz stone, basalt, marble, granite, dolomite , High-hardness materials such as iron ore, or materials with high water content, it is better to choose the impact crusher, which can get better treatment effect.

2. Hammer crusher has a large crushing ratio, simple structure, easy operation, low energy consumption, and low investment and operating costs. Therefore, if you crush coal, chalk, gypsum, brick, limestone, coke, and asbestos cement Waste materials such as waste materials with low hardness, and low water content, the material is not wet, and the discharge does not need to be adjusted frequently. Then, Longjian Group recommends that you use hammer crusher for better chance, which can not only meet production needs, but also pass Lower investment costs get higher returns.

In summary, when choosing equipment, the staff of Longjian Group will tailor the plan according to the customer's site. During the early installation process, Longjian Group will arrange professional personnel to install and control the site to ensure the normal production! Welcome to consult Longjian Group: 400-023-0808.

Keywords: How to choose the impact crusher and hammer crusher?