Polyurethane Sieve Becomes More Commmercialized
Pingguo bauxite
Pingguo bauxite. A project was put into operation in August 1994, including l Block design large
scale of the 1.9 million the Ua original ore concentrator. Ore containing aluminum, silicon, iron and
other ingredients, broken washing process equipment, causing serious wear and tear. Pingguo bauxite
shaker wear rubber sieve plate, and significantly by the use of effects. Compared with steel mesh, it
shows the following advantages. screening efficiency has improved significantly. The product of the
rubber material, with the flexibility and toughness, when the ore through the screen surface can
generate bounce, increasing the chance of the material through the sieve. As the sieve was inverted
conical sieve clogging, is conducive to improve the screening efficiency
vibrating screen. screen
service life is longer, up to three months. 6-8 times in the steel mesh. easy to install. The product
has the advantages of light weight, easy to replace, and simple. low noise. This product has the
elasticity and flexibility than steel mesh to reduce the noise of 8 ~ 15 dB. Improve the working
environment,
reduce the hazards of noise on workers.
Since 23 February, 1968 II 1 polyurethane tensioning, sieve plate is installed on the lower sieve
shaker, various foreign polyurethane sieve (mesh), industrialization and commercialization, in the ore
dressing plant, coal washery water, building materials such as gravel plants and so widely used. Sieve
plate development and testing of polyurethane elastomers in China started in the early 1970s, Yangzhou
Chemical Factory is a polyether casting process, production of specifications (width length) 1500 mm
x1000 mm, 1200 mm IOOO mm sieve size of 20 mm x 20 mm, 15 mm x15 mm, etc., the price of 46 yuan / kg.
Its main properties: tensile strength of 19.6 to 34.3 MPa. 300% tensile strength 7.84-14 7 MPa.
Elongation 350c70 600%. Permanent deformation of 2% to lO%, anti-tear strength of 3.43-8 82 MPa, the
impact elasticity of 15% to 30%. Shore A hardness of 80. . 90. Akron 0.05 to 0.1 cm3 1 61 cmm, / km.
1973 installed in the Dachang Mining Bureau Changpo concentrator crushing system l shaker shaker
technical conditions: size (width length) 1500 mmx 3000 mm. Mesh size 20 mm 20 mm, the vibration
number of 815 r / min, the amplitude of 8 mm. Polyether polyurethane sieve test (two polyether, a
polyether) assessment for industrial production show that to deal with 165 000t of tin ore.
by: libby
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