Flow Chart of Blow Room Line for Low Grade Cotton

Blow room: 

The main function of the blow room is to open the compressed layer of a bale of cotton or any staple fibers. It also helps to extract the impurities like broken seeds, husks, leaves, sand, stone & iron particles, short fibers, immature fibers, dust, dirt, and other foreign materials from the cotton by opening and beating. We have discussed on blow room for high-grade cotton, blow room line for medium grade cotton. In this article, I will give a flowchart of blow room for low-grade cotton.

Blow Room Line for Low Grade Cotton
Blow room for low-grade cotton

Flow Chart of Blow Room Line for Low Grade Cotton

Bale breaker

Conveyor belt

Hopper feeder

Porcupine opener

Double Crighton opener


Hopper feeder

Just tank

Porcupine beater (2 no.)

Three bladed beater

Mouth piece

Two way distribution


Hopper feeder with reserve box


Blow room:

Blow room is the first step of yarn production in the spinning operation. In this stage the cotton fiber is opened, cleaned, mixed, micro dust removed, and evened. In compressed bales are opened, cleaned and blending or mixing to form uniforms lap of specific length is called the Blow room section. The cleaning efficiency of the cotton blow room is 40-70%.

Thus passed to carding machine without increasing fiber rupture, fiber neps, broken seed particles and without removing more good fibers. The basic functions of the blow room are opening, cleaning, dust removal, blending, and evenly feeding the material on the card.

 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, and so on.
  4. Mixing and blending of different classes or grades of fibers.
  5. Removing foreign fibers and plastic contaminations
  6. Uniform feeding to the next stage.
Author of this Article:
Mustaque Ahammed Mamun
 Quality Assurance Officer,
 Lamisa Spinning Ltd. Tongi, Gazipur 
 Cell: +8801723300703
 Email: [email protected]


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