Product Detail

YFBKK series high pressure box type dust explosion-proof mill with three-phase asynchronous motor combined with the company has long produced high pressure
Box type asynchronous motor and mill special motor design concept and many years of factory operation experience, and learn from our company tight
The dust explosion-proof motor has been developed with reliable new technologies, new materials and new processes. It has novel design and structure
Compact, beautiful shape, high starting performance, low noise, low vibration, high protection level, safe and reliable operation.

Application

YFBKK series high pressure box type dust explosion-proof coal mill with three-phase asynchronous motor is driven to break and grind coal into powder
The prime mover of mechanical equipment is widely used in cement, silicate products, new building materials, refractories, fertilizers,Black and non-ferrous metal beneficiation and glass ceramics and other production industries, a variety of ores and other grindable materials dry or wet grinding; It can also be used in medicine, textile (such as cotton fiber, flax fiber, chemical fiber, etc.), metallurgy (magnesium powder,aluminum powder, toner, etc.), grain processing (such as wheat, corn, grain, etc.), feed processing (blood meal, fish meal), fertilizer, tobacco grass, paper, synthetic materials (such as plastics, dyes) and other places where combustible dust exists.

Model Description

YFBKK 500-6
Y-Three-phase asynchronous motor
FB - Dust proof type
KK - Air-to-air cooling
6-Poles
 

Implementation Standards

GB 755 rotary motor rating and performance
Ex tD  A21 IP65 T130℃
Classification of structure type, installation type and junction box position of GB/T 997 rotary motor (IM code)
GB/T 1032 three-phase asynchronous motor test method
GB/T 1993 Rotating motor cooling method GB 1971 rotating motor line end mark and rotation direction
GB/T 4772 rotary motor dimensions and output power class
GB/T 4942.1 Shell protection class (IP code) classification of the overall structure of the rotating motor
GB 10068 - Measurement and limits of mechanical vibration for motors with a center height of 56mm and above
GB/T 10069.1 Rotating motor noise determination methods and limits - Part 1: Rotating motor noise determination methods
GB 10069.3 Rotating motor noise determination methods and limits - Part 3: Noise limits
Explosive atmospheres - Part 1: general requirements for equipment
Electrical equipment for use in combustible dust environments - Part 1: General requirements
Electrical equipment for use in combustible dust environments - Part 5: Enclosure protected "TDS"
GB 30254 high voltage three-phase cage asynchronous motor energy efficiency limit value and energy efficiency class
GB 50058 Specification for design of electrical installations in explosive and fire hazard environments.

Basic Features

Frame Size: H450 ~ 630.
Rated power range: 315kW ~ 2240kW.
Rated voltage: 6000V ~ 10000V.
Frequency: 50Hz, 60Hz.
Number of poles: 6P ~ 8P.
Thermal classification: 155(F).
Temperature rise limit: 80K (Class B).
Vibration speed: 2.3mm/s.
Efficiency: 3-level energy efficiency, in line with GB30254 "High voltage three-phase cage asynchronous motor energy efficiency limits and energy efficiency levels"
Energy efficiency Level 3.
Cooling method: IC611.
Installation method: IMB3(can also be made into IMB35, IMV1).
Protection level: IP65/IP55.
Operation mode: S1.
Explosion-proof level: Ex tD A21 IP65 T130℃; Ex tD A22 IP65 T130℃ (with conductive dust); Ex tD A22 IP55 T130℃ (no conductive dust).
The temperature is -20℃ ~ +40℃, and the altitude is not higher than 1000m.
Indoor (standard) Optional: outdoor (W), outdoor medium corrosion (WF1), outdoor strong corrosion (WF2), indoor medium Corrosion (F1), indoor corrosion protection (F2), hot and humid zone (TH), dry tropical zone (TA), outdoor hot and humid zone (THW),Outdoor Dry Tropics (TAW).

Installation Method