The Development of Impact Crusher

Of the five crushing machinery series, both impact crusher and hammer crusher crush brittle materials mainly by impact action, so they are often called impact crusher. Compared with jaw crusher, cone crusher and roll crusher that crush materials mainly by squeezing action, impact crusher has the following features:

A. High crushing ratio. The crushing ratio of impact crusher can reach over 50, while it is difficult for jaw crusher, cone crusher and roll crusher to exceed 20. So impact crusher is widely used in the industry where the single-stage crushing is required, such as the limestone crushing in cement industry.

B. Good product particles. Under the influence of impact action, the crushed materials often crack in its most fragile surface. The selectively crushing method ensures higher probability of cubic product particles, the final product of impact crusher in needle flake can be less than 10%, while for jaw crusher, cone crusher and roll crusher, the final product in needle flake will be higher than 15%. Therefore, impact crusher is often used as the final crushing equipment to produce concrete aggregate in the industry where cubic product particles are required, such as the anti-skid surface in high-grade highway.

Corporation Training---Deep Learning Campaign

To enhance the business capability of company staff and deepen staff’s  comprehensive understanding of technical knowledge, Human Resources Department and Training Department launched the “Deep Learning Campaign” actively. On October 29th, the training about crusher and relevant products was conducted officially, and this training is mainly for the company's new employees.

The training about crusher series given by Engineer Liu from our company’s R & D center officially started on the morning of the 29th. With multimedia presentations of PPT, video and audio-video, company’s equipment of various models has been shown comprehensively, including jaw crusher, cone crusher, impact crusher, sand making machine, mobile crushing plant etc. Engineer Liu introduced the machines’ basic structure, working principle, performance characteristics, technical advantages, market, and service condition. Liu also made a comprehensive analysis of the company's overall situation and R&D trend of the crushing machinery.

Engineer Liu made a detailed analysis of the features and performance advantages of our company’s crushing machinery of various models. Through this “Deep Learning Campaign”, the staff have deepened the understanding of machines’ technology and applications, and got to know their work responsibilities and importance. The colleagues attended this training said that they had a clearer understanding of their work and company’s development after this training and. Moreover, their work efficiency had also been improved greatly. At the same time, the participating employees made some suggestions on conducting the similar training programs frequently. They hoped they could often attend such training programs, master their own business knowledge soon and apply to the daily work.

How to attract buyers? —Training from Alibaba

On October 22th, Henan Liming Heavy Industry Science & Technology Co.,Ltd invited the Lecturer Wu Debao, a very smart and charming woman, to offer us some advice about how to attract buyers and make them place orders.

Firstly, the time when we reply the inquiry should be the customers’ work hours. And pay more attention to the price sheet, our lecturer, we can call her A Bao, advise us to use a special price sheet to catch the eye of the buyers. For example, we can place one of our pictures which have some connection with our machines, such as jaw crusher, cone crusher, stone crusher, mobile crushing plant, grinding mill, and sand making machine, to increase the attraction. If possible, we can make the price sheets of different styles for different countries.

Next, it’s not enough to just send emails to customers, we should also call them and try to leave a deep impression on them. Confidence building is the key step to attract the buyers. So be remember to show our sincerity to our customers, and it would be better to be their friends.

Then, we can cultivate a hobby, such as watching movies, listening to music,  keeping a pet etc. since westerners like to do these, we should keep up with their pace then we can have something similar to talk about.

We learn a lot from this training, and suddenly feel refreshed. Liming Heavy Industry staff all hope that one day we can have such kind of training again.

The application of crushers

There are four principal types of primary crushers. The Blake jaw crusher uses a double toggle to move the swinging jaw and is built in a variety of sizes from laboratory units to large sizes having a feed inlet 84 by 120 in. (213 by 305 cm). The Dodge jaw crusher uses a single toggle or eccentric and is generally built in smaller sizes. The Gates gyratory crusher has a cone or mantle that does not rotate but is moved eccentrically by the lower bearing sleeve. The Symons cone crusher also has a gyratory motion, but has a much flatter mantle or cone than does the gyratory crusher. The top bowl is spring-mounted. It is used as a primary or secondary crusher.

Secondary crushers include the single-roll crusher and the double-roll crusher which have teeth on the roll surface and are used mainly for coal. Smooth rolls without teeth are sometimes used for crushing ores and rocks. The hammer crusher is the type of secondary crusher most generally used for ore, rock, and coal. The reversible hammer mill can run alternately in either direction, thus wearing both sides of the hammers.

Crushing and pulverizing are processes in ore dressing needed to reduce valuable ores to the fine size at which the valueless gangue can be separated from the ore. These processes are also used to reduce cement rock to the fine powder required for burning, to reduce cement clinker to the very fine size of Portland cement, to reduce coal to the size suitable for burning in pulverized form, and to prepare bulk materials for handling in many processes. See also Materials-handling equipment.


Features and Advantages of Cone Crusher

With the continuous growth of China's economic construction, crushing machine industry has been developing rapidly. Cone crushers have been widely used and greatly popularized. The machine’s advantageous design and superior performance are the fundamental reasons for gradually entering the market. The following two advantages of cone crusher make it have great prospects for development in the competition of the market. 

 

First, the cone crusher adopts innovative design principles and the new crushing technology, and can crush materials of different specifications. Cone crushers are widely used in metallurgy industry, building materials industry, road building industry, chemical industry and silicate industry. They are suitable to crush various kinds of ore and rocks of medium or above medium hardness. The cone crusher is of high performance, high efficiency, high capacity, low operation costs, easy adjustment, economic operation, etc. It not only has large reduction ratio, fine and uniform product size but also has low unit power consumption. The machine has few requirements for humidity and is suitable to crush any hard brittle materials. The cone crusher has great prospects in mineral processing industry.

Second, the cone crusher has high throughput in crushing materials and high capacity. Its unique design greatly reduces repair and maintenance costs, therefore the crushing productivity has been greatly improved and production costs have remarkably decreased.


What a bad day!

Yesterday was really a bad day for me! I did't sleep well at night because of serious stomachache. Unfortunately, I was on duty yesterday so I had to get up early. I felt dizzy and tired when I got up. When I took my temperature I found I had a fever nearly 39 degree. I went toa clinic to get some medicine, then I came to work by bus.


After I took some medicine, I felt a little better and began to post products on my micro-blog. I uploaded and shared our  products on Facebook, Twitter and Flickr. The machines are as follows: Jaw Crusher, Raymond Mill, CS series Cone Crusher, TGM series Trapezium Mill and Impact Crusher. Moreover, I also shared some common minerals which can be processed by Liming Heavy Industry Crushers and Grinder Mills.


I took a nap after lunch and felt much better In the afternoon.  I went on working untill 5:30 p.m. I went to bed very early last night and had a good rest.

http://www.mill-crusher.com/products/jaw_crusher.html
http://www.mill-crusher.com/products/raymond_mill.html
http://www.mill-crusher.com/products/symons_cone_crusher.html