DESIGN AND FABRICATION OF A DUST EXTRACTOR


DESIGN AND FABRICATION OF A DUST EXTRACTOR 

 ABSTRACT

Man’s imp act on global environment system especially in the area of dust extraction is now at a scale where it is disrupting.  These dust extractors varies in major ways.

The environmental degration is, in turn contributing to health threat in this part of the globe.  Unfortunately most factories, workshops which suppose to posses these machines for dust extractions a re not having them thereby making dust a very dangerous threat to man. 

Due to this ugly development it, is obvious that these factories and workshops can do little or nothing to protect our environment from this poor state.  It is therefore necessary that all and sundry should join the crusade of eradicating dust from our environment thereby making it clean.  Although before now people have tried to contribute their own quota in seeing to the end of the menace, get lack of interest, finance has posed a hindrance to the realization of this achievement.

In view of the above, we deemed it necessary that such a machine should be constructed to the Mechanical Engineering workshop to eradicate dust and thereby make the workshop environment clean and fit for students practical activities.

Man’s imp act on global environment system especially in the area of dust extraction is now at a scale where it is disrupting.  These dust extractors varies in major ways.

The environmental degration is, in turn contributing to health threat in this part of the globe.  Unfortunately most factories, workshops which suppose to posses these machines for dust extractions a re not having them thereby making dust a very dangerous threat to man.  

Due to this ugly development it, is obvious that these factories and workshops can do little or nothing to protect our environment from this poor state.  It is therefore necessary that all and sundry should join the crusade of eradicating dust from our environment thereby making it clean.  Although before now people have tried to contribute their own quota in seeing to the end of the menace, get lack of interest, finance has posed a hindrance to the realization of this achievement.

In view of the above, we deemed it necessary that such a machine should be constructed to the Mechanical Engineering workshop to eradicate dust and thereby make the workshop environment clean and fit for students practical activities.

  The realization of this work started from our supervisor who conceived the idea which we saw as a need, then we defined the need and synthesized it, evaluate and came to a conclusion.

The synthesis led us to drawing board by sketching and drawing to scale after which the design required was chosen.  Fabricated and parts put together to form what we called a dust extractor.

TABLE OF CONTENTS

Title page

Approval page

Letter of transmittal

Signature page

Letter of release

Dedication

Acknowledgement

Abstract

Table of contents

CHAPTER ONE

1.0    Introduction

1.    Aims and objectives

2.    Economic importance of a dust extractor

3.    Uses of extractors (dust)

4.    Design consideration

CHAPTER TWO

2.0    Literature review

1.    Improvement in previous ones

CHAPTER THREE

3.0    Design calculation

1.    Material selection

2.    Sequence of operation

CHAPTER FOUR

4.0    Cost analysis

1.    Material cost

2.    Labour cost

3.    Cost of reporting

4.    Market survey and value

CHAPTER FIVE

5.0    Performance evaluation

1.    Recommendation and conclusion

References

CHAPTER ONE

INTRODUCTION

Dust is a serious health hazard especially to the respiratory system.  It can have a cumulative effect eventually resulting in permanent damage to the health.

Fine dust is the most dangerous and the most difficult to get rid off.  The sharing and the large particles of dust are not much of a problem as most of it falls to the floor quickly and lungs have a built in mechanism which can eject relatively large particles.

The dust particles that causes damage are normally in the range of 0.2 to 5 micron in size (a micron is one thousand of a millimeter) and so small as t o be invisible to the naked eye.  They can remain suspended in the air for hours.  Even if one cannot see any dust, the atmosphere may still be harming ones lungs.  One is likely to breath 8 to 10 cubic meters of air during and 8 hour working day most especially those working in the engineering workshops that has to do with metal drilling (drilling, shaping etc) drugs manufacturing industry, paint industry and food processing industry.

If the dust in the air average out of 5 mg per cubic meter during that period, then you will suck in 50gm (2 ounces0 of dust.  Most of this w ill be dealt with by the body’s own dust defence mechanism the nasal hair and mucus lined walls of the air ways leading to the lungs will swallow most of it.  Only a very tiny percentage of the dust is permanently trapped in the lungs but it is this which causes the damage.

Dust from some wood can cause skin complaints such as dermatitis.

Dust Extractors:     With a small dust extractor couple with the respirator to give a primary protection.  You must not need a huge powerful machine it w ill help to keep the workshop clean and you can use it with it’s flexible hose to cover up the sharing and remove dust which has settled on surfaces.  Because you have a wood turning lathe you can quickly turn up a wooden adaptor to accept the hose form your domestic vacuum cleaner to give you a handy extension hose.  If you have other wood working machines such as a table saw you can hookup the extractor to them when you need to use them.

EXTRACTING DUST:    The fan sucks the air into an oil drum shaped container and then through an internal filter.  These machines usually also make use of the cyclone effect to reduce the load on the filter.  This type of machine is cheaper, takes less space, has superior filtration and has a stronger suction for hovering.  The motor however is very noisy and the airflow is much less than the external bag machine.

The small filter clog quickly reducing he air flow dramatically.  The wood turner really need is a machine which moves a larger volume of air at a lower speed breeze which wafts the fine suspended dust away from the lathe into an efficient filter.

Those extractors setups for paint spraying welding which consist of a large three sided box built around the work area.  Built into the rear of the box in an array of huge powerful fans which sucks all fine dust and fumes through suitably design filters at the rear and recalculate the air.  They work well because they move a very large volume of air.

Another dust extractor BB100, this is a low cost fine dust extractor (performance rating 3) for the hobby workshop.  It is equipped with a 1000 watt vacuum cleaner motor which generates 195 cubic metres per hour of air flow and provides enough suction to cater for even the smallest of power tool inlets.  The two stage filtration system consist of a pleated paper filter, rather like a car filter, surrounding the in let to the vacuum motor and a sub micron paper bag filter which totally encloses the pleated filter.

Largest sized waste, such as planer chippings, fall straight to the bottom of the drum whilst the smaller dust particles are captured by the paper filters.  The paper filters can be easily replaced as necessary whilst the pleated filter can be a vacuum cleaned periodically.  Typical uses for this extractor are small band saws, bench mounted sanding machines and portable power tools such as routers, planners and sanders.  It also serves as a very effective vacuum cleaner for keeping the workshop clean and tidy.

1.1    AIMS AND OBJECTIVE

This project is aimed not only at providing a dust extraction machine in factories and workshops but:-

To provide a life equipment in the workshop which can be used for exhibition by students.

To provide a machine (dust extractor0 which could be further modified and improved on, for the extraction of dust from the atmosphere, which can favourably compete with the best in the market.

1.1    ECONOMICS IMPORTANCE OF A DUST EXTRACTOR

1.    For extraction of dust from the air

2.    Locally made dust extractors can be sourced in the market

3.    Effective dust extraction can only be achieved if handled by an experienced person

4.    Durability if proper maintenance culture is adopted.

1.3    USES OF A DUST EXTRACTOR

1.    Can be used in extracting dust from the workshops

2.    Can be produced and soled to factories thereby serving as a source of income to the producer.

3.    Reduces disease that could have been contacted from the air through dust.1.4    DESIGN CONSIDERATION

The design and selection of materials is governed by many factors, first, considering the physical characteristics of the extractor i.e the shape, size and weight.

Design also to protect man against his negligence and for the safety of the motor.

Design to work effectively in any place of application.

The weather condition of any place of its application was also considered, therefore it can be used any where without being affected by the weather condition of the environment.

WORKING METHOD

Metal cutting process consist in removing a layer of metal from blank to obtain a machine part of the required shape and dimensions and with a specified quality of surface finish.

A metal cutting tool is the part of a metal cutting machine tool that, in the cutting process, acts directly on the blank from which the finished part is to made.  The metal cutting process accompanied by deformation in compression, tension and shear by a great deal friction and heat generation, tension and shear by a great deal friction and heat generation governed by definite laws.  In order to cut the material from blank, the cutting tool should be harder than the material to be cut, the tool should penetrate the blank and the tool should be strong enough to withstand the forces developed in cutting.

In this construction of these dust extraction machine, a lot of welding activities was done and moreso forging in general.  Welding is defined as a group of processes in which metals are joined by bringing abutting surfaces to a molten state.  It facilitate light weight construction.

CHAPTER TWO

LITERATURE REVIEW

With our ever increasing awareness of health and safety in the workshop, and of the true extent of dust hazards, especially in regard to wood turning and wood machining, the need for effective and efficient workshop dust extraction has never been clearer.  

Until very recently, the home wood working enthusiast has not enjoyed ready access to suitable equipment and most of that which purported to provide such functionality was quite likely to be doing exactly the opposite.

In truth, most of the devices offered as “Dust extractors” were in fact “Dust recirculation machines” expelling back into the workshop atmosphere the fine dust.  Particles most likely to do damage to the respiratory system or to act as carcinogens.  They may have been capable of removing chips and shavings, but they could not filter out the damaging fine dusts the true causes of most of the respiratory, dermatological and carcinogenic problems that can result from working wood without adequate protection.

Dust extractor production has been carried out in different forms and stages with fabrication to form different shapes, obtainable in our market today.

There has been a lot of technological advancement in dust extractor production in both local or foreign made dust extractors.  In the production of the dust extractor a lot of welding is practiced (joining of metals by bringing abutting surfaces to a molten state).  The components parts of a dust extractors is made up of metallic materials all through instead of combination with any other engineering materials.

On the design and fabrication of dust extractors, proper attention was given to the economy as to confirm with what is obtainable, in the market or even sell at a reduced rate yet realizing the cost of the tools used in working.

Also human negligence and safety of the equipment as well was considered, this is to protect the workman against accident.

Finally, after critical review and analysis of what has been in existence (dust extractors) we were able to come up with our own design and fabrication which we present to equipment.  But then as no machine but has 100% efficiency, there is every need that he work should be modernized and improved on.

.

DESIGN AND FABRICATION OF A DUST EXTRACTOR



TYPE IN YOUR TOPIC AND CLICK SEARCH.






RESEARCHWAP.NET
Researchwap.net is an online repository for free project topics and research materials, articles and custom writing of research works. We’re an online resource centre that provides a vast database for students to access numerous research project topics and materials. Researchwap.net guides and assist Postgraduate, Undergraduate and Final Year Students with well researched and quality project topics, topic ideas, research guides and project materials. We’re reliable and trustworthy, and we really understand what is called “time factor”, that is why we’ve simplified the process so that students can get their research projects ready on time. Our platform provides more educational services, such as hiring a writer, research analysis, and software for computer science research and we also seriously adhere to a timely delivery.

TESTIMONIES FROM OUR CLIENTS


Please feel free to carefully review some written and captured responses from our satisfied clients.

  • "Exceptionally outstanding. Highly recommend for all who wish to have effective and excellent project defence. Easily Accessable, Affordable, Effective and effective."

    Debby Henry George, Massachusetts Institute of Technology (MIT), Cambridge, USA.
  • "I saw this website on facebook page and I did not even bother since I was in a hurry to complete my project. But I am totally amazed that when I visited the website and saw the topic I was looking for and I decided to give a try and now I have received it within an hour after ordering the material. Am grateful guys!"

    Hilary Yusuf, United States International University Africa, Nairobi, Kenya.
  • "Researchwap.net is a website I recommend to all student and researchers within and outside the country. The web owners are doing great job and I appreciate them for that. Once again, thank you very much "researchwap.net" and God bless you and your business! ."

    Debby Henry George, Massachusetts Institute of Technology (MIT), Cambridge, USA.
  • "Great User Experience, Nice flows and Superb functionalities.The app is indeed a great tech innovation for greasing the wheels of final year, research and other pedagogical related project works. A trial would definitely convince you."

    Lamilare Valentine, Kwame Nkrumah University, Kumasi, Ghana.
  • "I love what you guys are doing, your material guided me well through my research. Thank you for helping me achieve academic success."

    Sampson, University of Nigeria, Nsukka.
  • "researchwap.com is God-sent! I got good grades in my seminar and project with the help of your service, thank you soooooo much."

    Cynthia, Akwa Ibom State University .
  • "Sorry, it was in my spam folder all along, I should have looked it up properly first. Please keep up the good work, your team is quite commited. Am grateful...I will certainly refer my friends too."

    Elizabeth, Obafemi Awolowo University
  • "Am happy the defense went well, thanks to your articles. I may not be able to express how grateful I am for all your assistance, but on my honour, I owe you guys a good number of referrals. Thank you once again."

    Ali Olanrewaju, Lagos State University.
  • "My Dear Researchwap, initially I never believed one can actually do honest business transactions with Nigerians online until i stumbled into your website. You have broken a new legacy of record as far as am concerned. Keep up the good work!"

    Willie Ekereobong, University of Port Harcourt.
  • "WOW, SO IT'S TRUE??!! I can't believe I got this quality work for just 3k...I thought it was scam ooo. I wouldn't mind if it goes for over 5k, its worth it. Thank you!"

    Theressa, Igbinedion University.
  • "I did not see my project topic on your website so I decided to call your customer care number, the attention I got was epic! I got help from the beginning to the end of my project in just 3 days, they even taught me how to defend my project and I got a 'B' at the end. Thank you so much researchwap.com, infact, I owe my graduating well today to you guys...."

    Joseph, Abia state Polytechnic.
  • "My friend told me about ResearchWap website, I doubted her until I saw her receive her full project in less than 15 miniutes, I tried mine too and got it same, right now, am telling everyone in my school about researchwap.com, no one has to suffer any more writing their project. Thank you for making life easy for me and my fellow students... Keep up the good work"

    Christiana, Landmark University .
  • "I wish I knew you guys when I wrote my first degree project, it took so much time and effort then. Now, with just a click of a button, I got my complete project in less than 15 minutes. You guys are too amazing!."

    Musa, Federal University of Technology Minna
  • "I was scared at first when I saw your website but I decided to risk my last 3k and surprisingly I got my complete project in my email box instantly. This is so nice!!!."

    Ali Obafemi, Ibrahim Badamasi Babangida University, Niger State.
  • To contribute to our success story, send us a feedback or please kindly call 2348037664978.
    Then your comment and contact will be published here also with your consent.

    Thank you for choosing researchwap.com.