subject: Hammer Crushers Featured With Technical Merits [print this page] Hammer crusher produced in our company is one of the main equipment for intermediate and fine crushing. It is featured with big crushing ratio and even product graininess.Hammer crusher works to crush raw materials by using fast rotating hammer. As a kind of most traditional crushing equipment, hammer crusher is widely used in mining quarry, cement crushing, coal crushing, metallurgic, construction material, road building, and Petroleum & Chemical industries, etc. It is used for grinding the Brittle materials, Medium hardness materials and medium-hard materials. The material will be grinded by the striking between high-speed hammer and material. With simple structure, large reduction ratio and high-efficiency, hammer crusher is still popular in mining crushing. The compression strength of the materials shall not exceed 100MPa, while the moisture content shall be lower than 15%. The equipment can be also used for crushing chips and paper with fiber structure and strong elasticity and ductility, or recycling asbestos fiber by crushing wastes of asbestos cement, etc. Gap between the gratings are adjustable to change grain size of the discharge, so as to meet different requirements of the customers.Single stage hammer crusher can crush the feeded materials of graininess1100mm into less than 20mm for one time, so the traditional double stage or three stage crushing can be changed into one stage crushing so as simplify the process can be simplified flow, and the equipment investment saved consumption and other production expenses reduced. The hammer crusher falls into reversible and non-reversible hammer crushers. Reversible hammer crusher with reversible rotor used for fine crushing in general; non-reversible hammer crusher with non-reversible rotor used for intermediate crushing. Single stage hammer crusher is non-reversible. Ordinary hammer crusher is composed of frame, rotor, grate bar, impact plate and adjustment unit; single hammer crusher is composed of frame, rotor ,feeding roll, grate bar, hydraulic opening unit and foundation.The main working part of hammer crusher is rotors with hammer. The rotors consist of main shaft, disk, pin shaft and hammers. The motor drives the rotors to rotate quickly in the crushing cavity. Raw materials enter the crusher through the feed opening and are stricken, impacted, cut and ground by the high-speed hammer to small size. There is a screening plate under the rotor, so that materials with size smaller than the screen mesh will be screened out and others are left to be further hammered and ground until reach the standard size. The size of the final product can be adjusted by changing the screening plate. The gap between the rotors and the screening plate can also be adjusted according to different requirement.Technical Advantages:This kind of crushers make use of impact force instead of pressure to crush material. It has many technical advantages which serves as the reasons why the machine is greatly welcomed in mining and other industries. They are listed as follows:1.Dealing with materials with high moisture for the preventiong of stuck. When crushing materials with high moisture, the feeding chute and impact plate of the impact crusher can be equipped with heating device to avoid the material adhered. Impact crusher can successfully avoid to get stuffed without heating device. However, hammer crusher has to be equipped with screen plate, which increase the possibility to get stuffed. 2.The final product size can be adjusted flexibly the impact crusher can adjust the final product size by various way, such as adjust the rotating rate of the rotor, adjust the clearance between impact plate and crushing chamber. The clearance can be adjusted by mechanical or hydraulic adjusting system. The clearance can be adjusted by the on-site button or remote control system through hydraulic system. Stone crushing plant working process:The combined stone crushing plant can be pided into three types: fixed, portable and sleigh type. The crushing and screening capability can be from 50 tons per hour to 500 tons per hour. The size of crushed product can be from 0 to 40 mm. The classification of size of crushed product can be set and adjusted according to customers, different requests.Our combined stone crusher plant can meet customers different needs for material crushing and screening. We can supply design, installation, and adjustment and acceptance test for customers.
