Identification of dehydration screen quality

dehydration screen uses the vibration of the screen to screen out moisture and impurities in the materials, thereby achieving the purpose of dehydration, desliming and classification. Dewatering screens usually consist of screen boxes, vibrators, screens, damping springs and other parts. When the dewatering screen is started, the vibrator will drive the screen to vibrate at high frequency. The materials will be affected by vibration and gravity on the screen. Moisture and impurities will be discharged through the screen, and the screened materials will be discharged from the screen outlet.
dehydration screen is a screening equipment widely used in mining, coal, metallurgy, building materials and other industries. Its main function is to dehydrate, deslim and classify materials.
In the case of dewatering screen quality appraisal, Zhongke Testing can provide dewatering screen quality appraisal services.

According to the different uses of dewatering screens, they can be divided into coal slime dewatering screens, sand and gravel dewatering screens, high-frequency dewatering screens, tailings dewatering screens, etc.

JB/T 9022-2012 Vibrating screen design specifications
JB/T 2444-2008 Seat-mounted double-axis vibrating screen for coal
JB/T 5594-1992 General technical requirements for assembly
GB/T 1220-2007 Stainless steel rod
GB/T 2100-2017 General corrosion-resistant steel casting
GB/T 3077-2015 Alloy structural steel
GB 50058-2014 Design code for electrical installations in explosion and fire hazardous environments
GB 3836.1-2010 Explosive environment Part 2 Equipment General requirements
GB 3836.2-2000 Explosion-proof electrical equipment for explosive environments Flameproof type "d"

A concrete company had a liability dispute with a machinery factory. Entrusted by the court, our company accepted the case and conducted an appraisal and analysis of the problems existing in the high-frequency dewatering screen involved in the case.
identification analysis results:
identification analysis expert group discussed the relevant information and on-site investigation of the dewatering screen involved and conducted a comprehensive quality and technical analysis, and made the following suggestions and conclusions:
No high-frequency dewatering screen exciter eccentric block was found on site. There are no protective devices installed on the chain drive and belt drive parts of the lower belt conveyor, which does not meet the standards; the main component of the middle layer of the
belt is polyterephthalate, which does not comply with the agreed nylon belt; the material of the
high-frequency dehydration screen does not comply with the agreed 304 material.