Filter PressChristy Joy A. RetanalJessa Maye S. Rodrigo

It is a tool used in separation processes, specifically in solid/liquid separation using the principle of pressure drive, provided by a slurry pump.

Introduction

This project aims to create a 3D object which is related to Chemical Engineering with the use of AUTOCAD and the knowledge acquired in this semester about this course.

To make a 3D model of Filter press

Objectives

This project is limited to the old style filter press. The stand of the Filter press was not included to emphasize the filtering plates and the wheels. Some details such as the angle of inclination in the compressing plate’s surface were excluded. The model was assembled to create a whole filter press. The frame was left out too.

Scope and Limitation

The compressing plate surface was assumed to be flat. The angle between the handle of the wheel was assumed to be 90⁰.

Assumptions

Handle: wheel : circles were drawn in 2D then extruded.UCS were changed per circles

In creating the wheels, in the drafting and annotation, a circle was made with the circumference of 6.1 and was extruded to have a thickness of 2.1.

Methodology

The handle which was assumed that 90⁰ apart from each other was created by making a circle in the sides of the bigger circle.

The UCS by this time is already changed in accordance to the axis of the first handle. The second, third and fourth handle was created in the same way. The four small circles were extruded to have the thickness of 6.5. At the center of the big circle, a small circle with a circumference of 5.1 was drawn and extruded to have a thickness of 14.7.

At the end of this circle, another circle with the circumference of10.7 was drawn and extruded to have a thickness of 1.2. This circle would be adhered to the compressing plate. All objects were selected and the command union was used. In the compressing plate, a rectangular object were drawn with the dimensions of 4.5 x 4 x 4.5 .Another way of making this rectangular object is by making a 2D rectangle and extruding it to have the thickness of 4.5.

The filtering plate was made by making a 2D rectangle and extruding. The small circles that are visible in the surface of the plate were created by using the command arc then array. Two plates are one-sided plate (plates that don’t have small circles in the surface for both sides) while the rest is double-sided plate.

The plate was then copied using the command copy to have 5 filtering plates. The stopping plate was made the same way the compressing plate does. To create a whole filter press object, all parts were joined by using the command join.

Small circle in the handle:C = 2πr5.1 = 2πrr = 0.8116

Results

Small circle attached to the compressing plate:

C = 2πr10.7 = 2πrr = 1.70296

Object Length Width Thickness

Compressing Plate 20.3 4 4.5

Filtering Plate 24.7 17.9 3

Stopping Plate 20.3 4 4.5

Table A. Rectangular objects

Placement Radius

Biggest 3.25

Attached in the compressing plate 1.70296

In the center of the biggest circle 0.8116

handles 0.8116

Table B. Circular objects

Pictures

This project aims to make a 3D model of the Filter Press. Filter press is a tool used in separation processes, specifically in solid/liquid separation using the principle of pressure drive, provided by a slurry pump. The filter press is composed of four main parts; wheel, compressing plate, filtering plate and stopping plate. The only problem encountered is the joining of the parts. Some parts can’t be joined directly because of different UCS used, especially in making the wheel.

Conclusion

The circles and the rectangle that composes the filtering plates can’t be joined too. The students used the command union but it is not applicable if all circles will be selected at once, so they reside in selecting the circles one by one, and the total numbers of circles were 461. Some details were left out too. So the researchers recommend the next researchers to give a very detailed model of filter press.

Filter press. (2016, March 7). Retrieved March 11, 2016, from https://en.wikipedia.org/wiki/Filter_press

How Does a Filter Press Work? - ErtelAlsop. (2015). Retrieved March 10, 2016, from https://ertelalsop.com/how-does-a-filter-press-work/

What is a Filter Press? - M.W. Watermark. (2014). Retrieved March 10, 2016, from http://www.mwwatermark.com/en_US/what-is-a-filter-press/

What-is-a-Filter-Press-. (n.d.). Retrieved March 10, 2016, from http://www.evoqua.com/en/brands/JWI/Pages/What-is-a-Filter-Press-.aspx

Reference