Johnson net has a very important proportion in industrial production. Johnson net is mainly used in coal preparation plants and mineral processing plants for pre-dehydration, desliming, deintermediation operations, and classified coal slime recovery. It can also be used in conjunction with a hydrocyclone to effectively classify, dehydrate, deslim, and de-intermediate fine-grained materials. The screen machine is composed of a screen box with a wrap angle of 45 degrees and a radius of curvature of 60 degrees wi2030mm. The curved screen surface and screen frame adopt pivot steering structure, which can rotate 180 degrees to prolong the service life of the screen surface. The arc-shaped screen is turned over by the feed box, screen box and sieve base shaft, so that the position of the feed end and the discharge end can be reversed to achieve uniform wear, prolong the service life, and operate flexibly and conveniently. It has also been widely used in metallurgy, chemical industry and other industries.

Working principle of Johnson net: the dehydration principle of the curved vibrating screen is to separate the slime water by the sharp edge on the feeding side of the sieve bar to separate the slime water; Vibrating curved screen and unpowered curved screen. The HS curved screen is turned over by the feeding box, the screen box and the shaft of the screen machine, so as to realize the position adjustment of the feeding end and the discharging end, achieve uniform wear, prolong the service life, and operate flexibly and conveniently. It has also been widely used in metallurgy, chemical industry and other industries. The reversible curved screen is a kind of fine-grained material dehydration, medium removal and desliming classification equipment used in the coal industry. It is mainly used in coal washing plants and is generally used in conjunction with dense medium cyclones.

Johnson net is the collective name of the nets required for ore screening. Most of them refer to slotted stainless steel sieve plates. The slotted screen is usually installed on the vibrator, and installed through the combination of accessories such as polyurethane mounts. The high-quality slotted sieve plate can meet the service life of the customer's needs while ensuring the efficiency and quality of production. The high-precision sieve slot can effectively improve the purity of clean coal by more than 5. Coal washing sieve plate is mainly composed of polyurethane frame, stainless steel slit screen, Q235 flat iron frame. The polyurethane frame is made of high-quality polyurethane material, which is a new research and development material in recent years. Polyurethane has super high plasticity, wear resistance, shock resistance and high temperature resistance. The polyurethane material is firmly surrounded by the flat iron frame through the mold, and there are snap-type installation grooves on both sides, which are installed on the polyurethane rail seat by pressure. Multiple modules form the entire screen surface, which will not degumming or falling. Johnson mesh is welded by high-quality stainless steel trapezoidal wire. The trapezoidal wire has high strength and high wear resistance, and the sieve seam is evenly welded and firm. The sieve gap is narrow at the top and wide at the bottom, which will not block the sieve gap due to the limit size of the material. The dehydration effect is far superior to other dehydration screens on the market, and can effectively improve the purity of clean coal by 2-3. The trapezoidal structure of the screen wire enables the screen to be used longer time without damage. The flat iron skeleton ensures the flatness of the screen surface during the welding process, effectively supports the screen surface, the screen surface is flat, and the material passes through evenly. The quality of the mine screen is mainly inspected from several aspects such as the screen wire, the screen seam, and the smoothness of the screen surface. The percentage of the sieve gap is tested by a feeler gauge, and the sieve wire is measured and inspected by a micrometer. The flatness of the sieve surface can be felt by the naked eye or by hand.