Miner screen

6. Hello
most of them are self-aligning roller bearings
tapered roller bearings
and deep groove ball bearings

7. Tianjin Yongjiang mining machinery 18622194838

8. Brief introction: Henan coking Machinery Co., Ltd. was founded in 1949. After 60 years of development, it has become one of the important heavy machinery and equipment manufacturing enterprises in China and the director unit of China Heavy Machinery Instry Association. The company covers an area of 1094 mu, with total assets of 850 million yuan. It has a large number of senior engineering and technical personnel and high-quality technical workers, with 1200 employees, including more than 600 technicians and nearly 700 sets of proction equipment. It has the comprehensive manufacturing capacity of casting, forging, heat treatment, riveting, machining, assembly and inspection. With strict quality management, first-class testing means and exquisite manufacturing technology, the company is dedicated to providing users with high-quality procts. The procts are widely used in thermal power generation, cement building materials, chemical fertilizer, metallurgy, mining, environmental protection and other fields. The leading procts are a full range of mine crushing and grinding equipment, a full set of cement equipment below 5000t / D, a full range of Mg ball mills, a full set of Metallurgical oxidation pellet proction equipment, a full set of recing iron proction line proction equipment, a full set of coal water slurry proction equipment, Large and medium-sized mining proction line, crushing and screening proction line, centralized control lubrication system, multi specification limestone / gypsum wet process, dry process, semi dry process, desulfurization and pulverizing system, etc., with 200000 and 300000 kW thermal power unit ball mill proction license. The company's procts serve all over the country, and are exported to more than 10 countries and regions, and are widely praised by users at home and abroad
legal representative: Li Pu
time of establishment: September 5, 2007
registered capital: 980000 RMB
Instrial and Commercial Registration No.: 41082100002492
enterprise type: limited liability company (invested or controlled by natural person)
address: No. 28, middle Jiaodong Road, Jiaozuo City

9. The characteristics of roller screen structure

the standard screen is composed of a set of sieves with a certain sieve ratio, the upper sieve hole is large, the lower sieve hole is small, and there is an upper cover and a sieve bottom. Some standard sieves also have a base sieve. There are special national standards for the sampling of test materials; The sampling method and sample quality should meet these standards.

in some cases, the screen surface of Henan vibrating screen is conical, and it is installed horizontally or slightly inclined. The material is fed into the screen barrel from one end, and moves to the other end with the rotation of the screen barrel. In the process of moving, fine materials fall into the funnel under the screen through the screen hole, and coarse materials larger than the screen hole are discharged from the other end. The drum screen is a low-speed screening machine, which runs smoothly and is installed in high-rise buildings with less vibration. The disadvantage is that the screening efficiency is low and the treatment capacity is also low. The cylinder screen is often used as wet screen and also as washing machine. Because of its simple structure, some small quarries use it as stone grading

the structure of roller screen is composed of several rollers arranged in parallel, generally 6-10 rollers, up to 20 rollers. The roller is provided with an eccentric disc or a triangular disc. The roller is driven by motor and recer through sprocket or gear to rotate. The direction of rotation is the same as that of material flow, and the inclination angle of screen surface is generally 12 ~ 15 degrees. The roller screen is mainly used for raw coal classification, large gangue demedium removal, and crop material screening in coking plant and ironmaking plant. Although the structure of roller screen is bulky and the screening efficiency is low, the work is very reliable< br />‍

when the resonance screen works, the screen box moves and the spring is compressed to store the potential energy; When the screen box moves in the opposite direction, the spring will release all the stored potential energy and convert it into kinetic energy of the screen box to support the resonance screen. The working system of resonance screen adopts the motion mode of potential energy and kinetic energy transforming each other, so as to rece the function consumption of mechanical work

to sum up, the advantages of resonance screen are high proctivity and screening efficiency, low power consumption, large amplitude and small dynamic load transmitted to the foundation, so the development situation of resonance screen is relatively good. However, the application of the equipment is limited by its complex structure, large machine mass, unstable amplitude ring operation, complex adjustment and easy damage of screen box components e to large impact load. These shortcomings have become the focus of research and development and improvement of resonance screen in the future, which will expand the application scope of resonance screen and make the kinetic energy more stable< br />