International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 08 | Aug 2022
p-ISSN: 2395-0072
www.irjet.net
SMART CHALK DUST REMOVER Dr. Basava T1, Mr. Praveen P Naik2, Mr. Rajshekhar kulkarni3, Mr. Chidri Vaibhav4 1ASSOCIATE
PROFESSOR, DEPARTMENT OF MECHANICAL ENGINEERING, SDM INSTITUTION OF TECHNOLOGY, UJIRE 574240, KARNATAKA, INDIA ---------------------------------------------------------------------***--------------------------------------------------------------------versions are frequently green because the colour is thought Abstract - The prolonged use of chalk is causing respiratory illnesses and skin allergies among teachers and students. Chalkdust also has an adverse effect on human vision. The tiny particulates of chalk in dust tend to accumulate in the respiratory system, causing health issues. In traditional methods, chalk dusters are cleaned by hitting them against a wall, or floor, causing environmental pollution. Therefore, it is necessary to design machines that clean chalkboard dusters and create dust-free environments in classrooms and laboratories.
to be easier on the eyes.
Key Words:
1.3 Blackboard Chalk
1.2 Blackboard Duster A duster is a soft resin material that is used to rub or erase the blackboard. The Witten material on the board should be removed so that we can write something new to express our point of view. It is typically made of felt strips attached to a handle.
Chalk Dust, Respiratory, Skin Allergies Chalkboard Dusters & Hazardous
Students and teachers have been writing on blackboards with blackboard chalk since the early 1800s. Blackboard chalk is not real chalk. It is gypsum (calcium sulphate), but people call it "chalk". Because it is soft, people use it to draw on hard surfaces. If you rub this chalk on something hard or rough, it will leave a mark. To remove the chalk marks from the board, use a chalk eraser. Blackboard chalk is typically sold in shops in 5 cm long sticks.
1. INTRODUCTION A teaching and learning process refers to the teacher and student, who deliver and receive information. How do they deliver their knowledge to students? Nowadays, there are many methods by which teachers can present their knowledge to students, such as using computers, giving notes, or using a whiteboard or blackboard to deliver information. For effective learning, a classroom must have a chalkboard. The traditional way of cleaning the chalkboard using a duster causes stress to the board cleaner. Chalk pieces are primarily made up of calcium carbonate (CaC03). It causes eye irritation and skin infections. It can also cause breathing problems for some individuals who are allergic to chalk dust. In this case, the only option for teachers is to change the teaching method or switch to dustless chalk. The traditional ways of teaching may be hard for teachers to adapt to new ones. Additionally, dustless, and low powder chalk can cause asthma attacks and allergies in students who are allergic to dust.
1.4 Conventional method of erasing Blackboard The most popular method of erasing the blackboard is to use a hand-held eraser and manually erase the chalkboard as needed. Cleaning blackboards with a moist cloth is, of course, an old trick, but it is only employed when the chalkboard is not needed right away. Efforts have been made to improve the materials used in erasers
2 WORKING PRINCIPLE The system works on a vacuum process for cleaning the blackboard duster with the help of the motor and vacuum produced inside the model. The motor drives shaft and brush connected to it. A sensor plays a role in the system for starting and stopping the motor and vacuum pump. Dust on the duster is collected and trapped by a dust collecting system to prevent it from circulating in the surrounding air and creating a dangerous atmosphere. When the duster is placed in the space provided, the sensor activates, causing the brush to rotate and creating a vacuum process for 10 seconds, thus drawn out the chalk dust through the suction produced by the vacuum pump. This prevents chalk dust from entering the atmosphere. After 10 seconds the process stops automatically
Based on the above work, a new idea has emerged to accomplish the problem that occurs in schools and universities by developing a smart duster for cleaning chalk dust. With this idea, time, energy, and health risks associated with chalk dust powder can be reduced.
1.1 Blackboard A blackboard, also known as a chalkboard, is a reusable writing surface on which text or drawings are made using sticks of calcium sulphate or calcium carbonate, which are known as chalk. Originally, blackboards were made of smooth, thin sheets of black or dark grey slate stone. Modern
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