Screening equipment overview

Equipment screening equipment is an important industrial sectors in mining, mineral processing, coal election, building materials, thermal power plants and other industrial north necessary, its performance will directly affect the production capacity and the technical and economic indicators of the industrial sector, so our equipment for screening Production and development are more important.

China's screening equipment has generally experienced the following four stages of development: the mapping and imitation stage of the 1950s. In this stage, on the one hand, the old screening machine left before the liberation was mapped and produced, and the Soviet sieving machine was copied, mainly including BГО type, BГД type and ГУП type vibrating screen and ЪКГ type shaking screen. In the early 1960s, the C.JM-21 vibrating screen of Poland and the WK and WP vibrating screens were reproduced. The self-design stage of the 1960s. Due to the shortcomings of the above-mentioned mapping and imitation sieving machines, such as heavy structure, high power transmission to the foundation, low processing capacity and poor dewatering effect, China has designed and manufactured circular vibrations on the basis of past production practice since the 1960s. Screens, linear vibrating screens and resonant screens have gradually replaced older screens. In particular, the resonance screen has been rapidly developed in the latter half of the 1960s due to its low power consumption, high screening efficiency, and low basic force. However, due to its complicated structure, difficult installation and adjustment, the machine has been developed. The parts are easily damaged, have many faults, and are replaced by advanced circular vibrating screens and linear vibrating screens that have been further developed; the serialization stage of the 1970s. On the basis of summarizing the years of experience in the manufacture and use of circular and linear vibrating screens, the linear vibrating screen has been improved and designed to form a series of products. In 1978, the "single-axis vibrating screen for coal" and " Coal seat type double-axis vibrating screen" two ministerial standards. Due to historical reasons, the early screening machinery was divided into two series of coal and mining, but the two were similar in structure and parameters. In order to facilitate the manufacture and use, and to meet the needs of specialized production, in 1979, the "mineral seat type vibrating screen series spectrum" was formulated, and the mining and coal vibrating screens were combined into one series. For the circular vibrating screen, the linear vibrating screen and the composite vibrating screen, the width and length of the sieve are the main parameters, and a series spectrum with 21 specifications and 71 products is formed. In this new series, new structures such as block eccentric vibrators, universal joints, tire couplings and self-synchronization principles have been adopted to make it a new stage of development; in the late 1970s and 1980s The new product development phase of the era. In this stage, large-scale circular vibrating screens and linear vibrating screens, equal-thickness vibrating screens, relaxation screens, linear vibrating probability screens, rotary probability screens, vibrating screens, and various fine screens have been developed. Especially in the 1980s, China introduced advanced vibrating screen production technology from the United States, Japan, Germany and other countries, and absorbed and digested it in a short period of time to produce the end of the 1970s and the 1980s. The world's advanced level of YA-type circular vibrating screen, ZKX-type linear vibrating screen, ZK-type vibrating screen and other series of screening equipment; and on this basis, has developed a new vibrating screen, such as DYS type large circular vibrating screen, YK type Circular vibrating screen, YKR type circular vibrating screen, STS type three-axis elliptical screen, ZKR type linear vibrating screen, ZX type banana screen, ZT type single-axis vibrating screen, DZS type large linear vibrating screen, ZKB self-synchronizing linear vibrating screen, LZS type and SL type cold ore linear vibrating screen. These vibrating screens are generally equipped with internationally advanced ring groove rivets, plate type screen box frame structures, high performance gear transmission systems, advanced vibrators, low stress damping springs and super heavy duty large clearance bearings and thin oil lubrication. Process and technology, so that our country's screening products have reached new heights in terms of variety, specifications and quality. Also introduction of new materials, such as rubber and rubber-metal spring metal spring instead of a coil spring, not only reduces the total amplitude of the vibrating screen when parking, reduced noise, and reduced sudden fracture accidents, prolong the life of 2 -3 times; because of the use of high-strength bolts and ring groove rivets instead of the rivet welded structure, the screen frame is firmly connected and reliable, reducing the accident of breakage; the rubber screen surface and the polyurethane screen surface are also used, which reduces the hole blocking and reduces the noise. Extends the life of the sieve plate.

In general, the fourth stage of the development of China's screening machine is quite important. In the past 10 years, the new varieties and new specifications of the screening machine have exceeded the sum of the first three development stages. Also better. These new products are versatile and adaptable, and can basically replace the old old screen sieving machines, thus accelerating the elimination process of domestic and imported old models of backward sieving machines. In the past 10 years, China's screening equipment has developed and is more advanced, reaching or approaching the world's advanced level.

At present, China's screening equipment manufacturers mainly include Anshan Mining Machinery Co., Ltd. (hereinafter referred to as Anshan Mine, former Anshan Mining Machinery General Factory), Zhongzhong, South Mine, Anshan Heavy Mining Machinery Plant (hereinafter referred to as Saddle Heavy) and Tangshan Branch. And Huaibei Mine Environmental Protection Machine Manufacturing Plant (hereinafter referred to as Huai Mine, former Huaibei Mining Machinery Factory), followed by Shan Mine, Yantai Xinhai Mining Machinery Co., Ltd. (hereinafter referred to as Xinhai Mining Machinery), Changfa Mining Machinery, Shangjian, Da Huazhong Machine, Zhuji Mining Machinery Factory (hereinafter referred to as Zhu Mine, Ningbo Xinxing General Machinery Factory (hereinafter referred to as Ningxin Factory), Nanzhong, Guangdong General Mining Machinery Factory (hereinafter referred to as Guang Mine), Baotou Mine, Yankuang Mine; Some other factories, such as Ninghua Mining Machinery Plant (hereinafter referred to as Ninghua Mining Machinery), Zheng Mine, Stone Mine, Jiang Mine, Shanghai Metallurgical Mining Machinery Plant (hereinafter referred to as Shangye Mine), etc. China manufactures screens and sieve plates. The main manufacturers are Shanghai Mine Screening Plant (hereinafter referred to as Shang Si), Shanghai Sentinel Mine Screening Plant (hereinafter referred to as the front screen), Hunan Zhuzhou Mine Screening Plant (hereinafter referred to as the strain screen) and Wujiang Machine Screening Plant.

The factories of Anshan, Zhongzhong, Nanfang and Anzhong have gradually developed into the production bases of screening equipment in China for more than 20 years. The screens produced by them are the most in China, both in terms of varieties and specifications. Many of them have international advanced level, which represents the current development level of screening equipment in China. At the same time, these plants also produce a variety of screens, sieve plates and rubber screens.

There are various types of waist and abdominal fitness equipment, including but not limited to the following:

1. Slimming machine: This is a fitness equipment that uses vibration to help reduce abdominal fat, suitable for people who want to engage in aerobic exercise at home. The fat slinger uses vibration and heating technology to help burn fat and achieve the effect of reducing fat and shaping. ‌

2. Health Wheel: A health wheel is a device used to exercise abdominal muscles. By using the health wheel to push and compress, it can effectively exercise the core muscles of the abdomen, helping to enhance the strength and stability of the abdominal muscles. ‌

3. Sit up assist: This is an assistive device that helps with sit ups, reducing pressure on the lumbar spine while providing stable support, suitable for beginners and those who need to strengthen abdominal training. ‌

4. Abdominal rolling equipment: Abdominal rolling equipment is specifically designed to exercise abdominal muscles, and through different movements and resistance settings, it can comprehensively exercise various parts of the abdomen.

5. Pedal Puller: This is a multifunctional fitness equipment that can be used for stretching training, helping to exercise abdominal, back, and upper limb muscles, as well as assisting with aerobic exercise. ‌

6. Roman chair: Roman chairs are mainly used to exercise the muscles of the waist and back, including compound training of the abdomen and back, suitable for people who want to comprehensively exercise the muscles of the waist and abdomen. ‌

7. Hip bridge machine: This is a specialized equipment used to exercise the muscles of the buttocks and abdomen. By performing hip bridge movements, it can effectively exercise the buttocks and core muscle groups. ‌

Choosing appropriate waist and abdominal fitness equipment is crucial for improving exercise effectiveness and preventing sports injuries. Different equipment is suitable for different populations and exercise goals, so the selection needs to be based on individual physical condition and exercise needs.