introduction of sensor 11#

8/7/2019 INTRODUCTION of sensor 11#

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2.0 INTRODUCTION

In this design project, automation system is used based on the high technology

devise, computer. We will design a programme on computer based on the mixing process

at the machine. The programme we design will allows us to enter the quantity and density

of powder 1, powder 2 and liquid chemical. This will allow us to mix the dry materials

with the liquid chemical to create any range of quantity and density of the polymer

addictive we want. It is more suitable in working area. Since materials used here are not

specified their physical and chemical properties, therefore we have to make appropriate

assumption for this process. The assumption will be use as a general guide where the

process flow is state in the requirement of the question. This is true in the working area

because our duty is to materialize working system based on the process flow.


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2.1 Assumptions and product parameters.

2.2 Major component

The system contained 4 major parts which Powder Tank 1 (PT1), Powder Tank 2

(PT2), Liquid Tank (LT), Mixer Tank (MT). These are illustrated in the Appendix. Each

tank is unique in design and has many other outputs devise. All the input and output

devise are linked to programme on computer control which makes the control, decision.

Each step showing on the computer screen will allow technician in charged find out how

many raw material left in the tank. If the raw material in the tank are in critically low

lever, computer screen will alert technician in charge to add materials to the primary refill

tank.

MaterialsPhysical properties

Chemical

properties

QuantityDensity(Lb\gal)

Moisturecontent

Flowcharacteristics

Powder 1 1.5 Very low Smooth Noncorrosive

200 pound

Powder 2 1.5 Very low Smooth Noncorrosive

200 pound

Liquidchemical

0.5 n\a Very highviscosity

Noncorrosive

100 gallons

Polymeraddictive 1 n\a Highviscosity Noncorrosive 450 pound


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3.0 Operation and function control panel

Two control panels are panels are located in two different place in order to

monitor and control the automation system. One will be near to the plant and one will bein control room.

In control room,

Step 1

Before we start the process, the sensor of tank will determine the material level in

tank and display on computer screen. Then the technician will know condition of the

material in tank and make decision which tank need to add more material.

Polymer additive mixing programme

Material in tank level

Powder 1 in tank high middle low

Powder 2 in tank high middle lowLiquid chemical in tank high middle low

Temperature of liquid in tank high middle low

Next Cancel


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Step 2

From the computer screen step 1, after we initial the density and quantity ofmaterial. Then we click the START button, to start the process.


Material Density(Ib/gal) Quantity

Powder 1 1.5 200 Ib

Powder 2 1.5 200 Ib

Liquid chemical 0.5 100 gal

START STOP


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Step 3

First, the Powder 1 and Powder 2 will mix in the mixer tank. The process can be

stop by press the STOP button. Then a statement will display on screen to ask you

whether you want to continue or terminate the process.


Powder 1 Powder 2

10% 10%


25% 25%

Step 4

Second, the liquid chemical in liquid tank will release and add to the mixer

tank. The process also can be stopped if the STOP button is press. Then a statement

Powder 1 and powder 2 is mixing.please wait

Stop

This will terminate the mixing process press OK button to terminatethe process or else press CANCEL button to continue the process.

Stop

OKCANCEL


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will display on screen to ask you whether you want to continue or terminate the

process.


15%


28%

Step 5

Then the density sensor in mixer tank will determine the density and the

addictive polymer and display on computer screen. The result will be checked by in

charged technician. The process will continue if the density is in proper consistency bypressing OK button. If not, the process can be terminate by pressing the CANCEL

button.

Liquid chemical is adding to mixer tank.

Please wait..

STOP

This will terminate the mixing process.

Press OK button to terminate it or else.

Press CANCEL button to continue the process.

OK CANCEL

STOP


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Step 6

After the density level is accepted. Then the mixture will pour out to the

final product container. Mixture will pouring out by press the START button and will

stop by press the STOP button. The process of pouring out the mixture can be pause bypress the PAUSE button. This allow the mixture pour to another container.

Density of the additive polymer is 1.0 Ib / gal

OK CANCEL


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Density of the additive polymer is in accepted level. Will mixturepour out the final product container?

START STOP PAUSE

introduction of sensor 11#

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