Spray Nozzles used in the mining processes industry

In summary, the conversation discusses testing various nozzles with different orifice sizes and using Bernoulli's theorem to measure the pressure at the nozzle. The setup involves a hopper, pump, flowmeter, and pipe feeding water to the nozzle, which sprays onto screen filters. There is a disagreement about whether the pressure at the nozzle is atmospheric or not. A diagram of the setup would be helpful in determining this.
  • #1
Michael V
28
0
I'm testing various nozzles with orifice sizes from 5mm to 40mm. The feed water comes from a hopper that is open to atmosphere into a pump. The pump has a flowmeter at the outlet. Then a pipe feeds the pumped water to the nozzle rig. The nozzle is spraying down onto screen filters. In terms of Bernoulli's theorem,

[itex]\frac{P_{1}}{ρg}[/itex]+[itex]\frac{V_{1}^{2}}{2g}[/itex]+Z1 = [itex]\frac{P_{2}}{ρg}[/itex]+[itex]\frac{V_{2}^{2}}{2g}[/itex]+Z2

is P2 atmospheric pressure or how would I measure this?
 
Physics news on Phys.org
  • #2
It would help if you could post a simple diagram of your test setup showing what you are trying to measure.
 
  • #3
Here is the simple diagram. So we have a pressure reading at the gauge, which is the reading for the larger pipe in which the nozzle screws into. I'm trying to calculate a coefficient of discharge, so can it be said that our pressure at the nozzle will be atmospheric pressure as it is discharging onto a open screen? I do not agree that it is but another engineer thinks this is correct.
 

Attachments

  • Basic Diagram of spray nozzle test rig.pdf
    25 KB · Views: 281

1. What is the purpose of using spray nozzles in the mining processes industry?

Spray nozzles are used in the mining processes industry to control dust emissions, prevent fires and explosions, and improve safety and efficiency in the mining operations.

2. What types of spray nozzles are commonly used in the mining industry?

The most commonly used types of spray nozzles in the mining industry are flat fan nozzles, full cone nozzles, and hollow cone nozzles. These types of nozzles are designed to create a specific spray pattern that is most effective for the application.

3. How are spray nozzles selected for use in mining processes?

Spray nozzles are selected based on the specific needs of the mining process, such as the type of material being sprayed, the desired spray pattern, and the desired flow rate. Factors like temperature, pressure, and chemical compatibility are also taken into consideration when selecting spray nozzles.

4. How do spray nozzles contribute to safety in the mining industry?

Spray nozzles help to reduce the risk of fires and explosions in the mining industry by controlling dust emissions. They also improve safety by reducing the exposure of workers to hazardous materials and by increasing the efficiency of mining operations.

5. What maintenance is required for spray nozzles used in the mining industry?

Spray nozzles used in the mining industry should be regularly inspected and cleaned to ensure proper functioning. They may also need to be replaced periodically if they become worn or damaged. It is important to follow the manufacturer's recommendations for maintenance and replacement to ensure the best performance and longevity of the spray nozzles.

Similar threads

  • Introductory Physics Homework Help
Replies
33
Views
3K
  • Engineering and Comp Sci Homework Help
Replies
6
Views
1K
  • Engineering and Comp Sci Homework Help
Replies
5
Views
5K
  • Engineering and Comp Sci Homework Help
Replies
8
Views
6K
  • Engineering and Comp Sci Homework Help
Replies
7
Views
1K
  • Engineering and Comp Sci Homework Help
Replies
2
Views
2K
Replies
5
Views
13K
  • Engineering and Comp Sci Homework Help
Replies
8
Views
8K
  • Introductory Physics Homework Help
Replies
1
Views
1K
  • Engineering and Comp Sci Homework Help
Replies
1
Views
2K
Back
Top