Introduction
Blow room is the first step of yarn production in spinning mills. A section in which compressed bales are opened, cleaned and blending or mixing to form uniforms lap of specific length is called Blow room section. The cleaning efficiency of blow room is 40 to 70%. This is the first section of spinning line for spinning of cotton yarn.
Functions of blow room
1. Opening the compressed bales of fiber and making the cotton tuft a small size as far as possible.
2. Detecting the metal objects and fire in fiber
3. Cleaning the fiber by removing the dust, dirt, broken seeds etc. and other foreign materials from the fibers.
4. Mixing and blending of different classes or grades of fibers
5. Removing foreign fibers and plastic contamination
6. Uniform feeding to the next stage.
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| UNIFLOCK BALE OPENER |
Principle of Opening and Cleaning:
Opening: Opening is the first operation in the blow room carried out to the stage of Flocks. in the-blow room and to the stage of individual fibers in the cards.
In the stages of the opening, machines with an opening function have the task of separating clumps of fiber into smaller ones. The sizes of the clumps, and of the teeth that deal with them, are progressively reduced. In general terms, grasping clumps of fibers with sets of teeth and dragging the clumps across another set of teeth or grids perform the opening function.
Cleaning: With cotton, there are often seed coat fragments attached to them. It is difficult to remove some of the extraneous matter without vigorous mechanical action and without adequate opening. Every time a clump of fibers is divided, a new surface is exposed from which it is relatively easy to remove the loose unwanted matter (trash).
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