GB/T 41229-2021 in English

Standard Framework and Technology Evolution

GB/T41229-2021 is an important standard in my country's cotton processing field. It was proposed by the All-China Federation of Supply and Marketing Cooperatives and is under the jurisdiction of the National Technical Committee for Cotton Processing Standardization. This standard was formulated under the framework of GB/T1.1-2020, marking a new stage in the standardization of cotton processing equipment in my country.

Core parameter system

Key Technical Requirements

Essence of test methods

The standard uses wind speed and pressure meter/Pitot tube to measure the resistance coefficient and air leakage rate, and the test point is located at a distance of 1-4 times the diameter of the pipe. The noise measurement adopts the four-point method (1.5m from front to back and left to right), and the maximum value is taken. The processing capacity per unit hour is converted by weighing 5 bales of cotton, and the power consumption measurement requires an electric meter with an accuracy of ≥2.0.

Implementation suggestions

1. Model selection: Match the dust cage diameter according to the production capacity requirements. The 1600mm model is suitable for 4000kg/h processing volume scenarios
2. Energy efficiency optimization: Regularly check the air duct sealing and control the air leakage rate below 10% to significantly reduce energy consumption
3. Maintenance points: Check the radial runout of the dust cage every month. If it exceeds 2mm, it needs to be corrected in time
4. Safety training: Focus on training the use specifications of protective devices and emergency shutdown procedures