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 have a certain impact on the air conditioning in the workshop, causing local temperature and humidity to vary to varying degrees. changes, 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 process air flow of cotton picking machine
Rotation of cotton picking machine beater and pre-spinning cotton condensation The suction of the machine 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 during grabbing, forming bundles and neps. If the temperature is too high, It increases 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 belongs to positive and negative pressure operation The process airflow has a certain directionality and is mainly used to transport cotton or dust. The wind speed of the pipeline determines the weight and volume it carries and the transportation effect; 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 airflow of the condenser
The process airflow of the condenser belongs to the power suction positive The main function of negative pressure process airflow 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 airflow of the hybrid cotton opener
The process airflow of the hybrid cotton opener is negative pressure The operating airflow is the process airflow 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
Process airflow of multi-bin cotton blender It belongs to the power suction air flow, and its function is 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 air flow is divided into output and input air flows. When inputting, the process airflow is rushed out with positive pressure, and the fiber jet spreads; when outputting, the process airflow is the process airflow of the front condenser, and free drop points can be installed by taking advantage of the movement characteristics of the airflow.
Control of air flow in the coiling machine process
Mechanical suction of rotating airflow is the process of the coiling machine. The characteristics of air flow are 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 beating process is affected by the beating 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 exhaust air flow of the winding machine fan. The corners should be able to reduce pipe resistance and ensure smooth airflow. 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. Using the movement rules of the air flow, it can be adjusted according to the processing performance of the fiber, so that the dust cage condenses the cotton and reduces the delamination of the cotton roll. It is laterally sealed from both ends of the dust cage to reduce The lap width reduces the lap weight CV. </p
