In the cotton spinning process, many process airflows such as the operation of equipment, the suction of fans, and the control of dust removal units flow in the production workshop, which affects the air in the workshop. Regulation has a certain impact, causing local temperature and humidity to change to varying degrees, affecting product quality and air conditioning. Strengthening the control and utilization of process airflow has a positive effect on regulating workshop air quality, improving product quality, reducing labor intensity and improving the production environment. Now I will share with you the utilization and control of airflow in the blowroom process.
Control of the process air flow of the cotton picker
The beater rotation of the cotton picker and the front spinning condensator The suction of the wind will produce process airflow and mix with each other. Its function is to grab the cotton block, but it also affects the grabbing effect. When the wind force is weak, it is easy to cause back flowers when grabbing, forming bundles and neps. If it is too high, it will Increase energy consumption. According to the hardness of the grabbed cotton block and the type of material, the appropriate wind speed can be used to achieve the purpose of taking into account both energy consumption and stable quality.
Control of process airflow in cotton pipelines
The process airflow in cotton pipelines is a positive and negative pressure operation process The air flow has a certain directionality and is mainly used to transport cotton or dust. The wind speed of the pipeline determines the quality and volume it carries and the transportation effect, and the pipe diameter determines the flow rate. If the flow rate is low, the cotton block will easily stay in the pipe and affect the mixing. Therefore, the wind speed should be set reasonably according to the carrying volume and air volume to stabilize the air flow delivery. The process airflow in the conveying pipeline has a constant speed. Taking advantage of its relatively closed characteristics, a heavy object dropper can be added to make impurities or heavier objects fall, providing a good guarantee for quality and safety.
Control of the process air flow of the condenser
The process air flow of the condenser belongs to the positive and negative power suction Pressure process airflow, its main function is to pump cotton flow and eliminate short lint. The strength of the airflow determines the speed of transporting the fiber bundles, and at the same time it rubs with the fibers. A long residence time will easily produce neps. According to the transportation distance and fiber volume, the wind speed should be matched with the pipe diameter to stabilize the cotton-to-air ratio and ensure fiber transportation. During positive pressure operation, as the driving force pressed into the dust removal unit, the dust is separated at the first level and the purified air is eliminated at the second level, which can save energy consumption and reduce power consumption.
Control of the process air flow of the mixed cotton opener
The process air flow of the mixed cotton opener belongs to negative pressure operation The air flow is the process air flow generated by the fan suction of the pre-spinning equipment, and its main function is to transport cotton pieces. The strength of the airflow has a great influence on the transportation of cotton blocks. If it is too small, it may cause choking. Since the air flow of the mixed cotton opener is mostly vertical pipes, and the bends are mostly right angles, which affects the wind speed and air volume. Therefore, when designing, the turning arc size of the elbow should be twice the diameter of the pipe; try to avoid right-angle turns to reduce operating resistance and energy consumption. The mixed cotton opening machine is a relatively complete opening process and is the best time to separate dust and impurities. Installing a U-shaped debris collecting device at its outlet can separate impurities from fibers.
Control of process airflow of multi-bin cotton blender
The process airflow of multi-bin cotton blender belongs to Powered suction air flow is used to transport cotton flow and mixed fibers. The air flow needs to be stable, and the pressure range is positively related to the density of the cotton layer. Unstable airflow can easily affect the density of the cotton layer and the mixing between fibers. The air flow needs to be constant within a certain range to make the movement speed uniform and ensure the fiber mixing effect. The process airflow is divided into output and input airflows. The process airflow during the input is flushed out with positive pressure and the fiber jet is spread out; the process airflow during the output is the process airflow of the front condenser. Free drop points can be installed by taking advantage of the movement characteristics of the airflow.
Control of the process air flow of the coiler
Mechanical suction rotary airflow is the process airflow of the coiler The characteristic is negative pressure air flow, which mainly condenses the cotton layer and transports fibers. The rotation of the integrated beater will generate process airflow, and the faster rotation speed of the boundary layer airflow will have a greater impact on the debris. The process airflow of the condensing fan of the roll forming machine has a significant impact on the quality and effect of the condensation.
The air flow of the comprehensive beater process is affected by the beater speed. The speed should be reasonably selected according to the fiber strength. The process air flow of the rolling machine must be stable and smooth, especially the turning of the air flow discharged from the winding machine fan. location, it is necessary to reduce pipe resistance and ensure smooth air flow. The airflow of the integrated beater can take advantage of the principle of debris on the surface layer to divide it into dead box and live box debris, so that the collected fibers and debris can be separated and reduce the adsorption of dust and debris into the cotton layer.
The live box mainly collects impurities, and the dead box recycles fibers to reduce the adsorption of dust and impurities to the cotton layer and affect the impurity removal effect. The airflow of the lower row of condensers is the key to the condensers, and its distribution depends on the movement of the airflow. The transverse width and longitudinal length of the cotton roll affect its weight CV. The motion law of the air flow is used to adjust according to the processing performance of the fiber, so that the dust cage condenses the cotton and reduces the delamination of the cotton roll. The dust cage is laterally sealed from both ends to reduce the cotton roll. Roll width, reduce cotton roll weight CV.
</p
