What Are the Different Types of Sandblasters?

Sand blasting machine is the category of air conveying machinery.

The sand particles are pushed forward by the compressed air in the pipeline, showing two states: suspended and pulsating.

The ideal working condition requires that the sand particles show a uniform suspended flow in the pipeline. The appropriate amount of sand and the appropriate air volume and pressure are the most critical factors that determine the effect of sand particles. The amount of air volume should make the air flow in the pipeline. At least it must be faster than the maximum sedimentation speed of the sand, and the wind pressure is sufficient to overcome the frictional loss and resistance of the air in the pipeline to promote the flow of sand, so as to ensure the smooth flow of sand in the pipeline.

However, with the growth of the pipeline, the wind pressure gradually decreases and the air velocity decreases, and the suspended particles first appear non-uniform suspended flow, and then appear in a dense and uneven flow state. When the air velocity is less than a certain value, a pulsating flow state occurs. As the air velocity decreases further, part of the material particles will stagnate at the bottom of the pipeline, and the other part will slide forward, which will cause the stagnant material layer to move steadily, and eventually form a blockage, causing work failure. This is to be avoided during the blasting process ^[1]

Liquid blasting machine

Full automatic

Environmentally friendly sand blasting machine has three major system features:

(1) Emission standards

Today the national secondary industrial emission standard is 60 cubic milligrams. The emission of environmentally friendly sandblasting machine is 55 cubic milligrams. Previous sandblasters were 100 cubic milligrams.

(2) Dust removal system

The effectiveness of the dust removal system depends on the filter element of the dust collector. The environmental protection type sand blasting machine dust filter element currently uses the world's best well-known brand Donaldson dust filter element. For example, if the dust-removing side of the bag is used, a nano-processed bag is used as the dust-removing material.

(3) Separation system

The environmental protection type sand blasting machine has a new improvement in the previous cyclone separation. The general separation effect of the previous sand blasting machine is about 80%. The separation effect of environmental protection type sand blasting machine is nearly 99%.

The sand blasting machine realizes automatic sand blasting through an electrical control system, which can automatically adjust the blasting angle, blasting time, blasting distance, back blowing time, the movement of the blasting gun, the speed of the worktable, etc.

The electrical control system is mainly composed of X-axis traverse component, Y-axis vertical displacement component, table rotation component, sand blasting component, blow-cleaning component, dust removal component and other parts. All components are made by LM series PLC according to the touch screen in advance. The set parameters are uniformly coordinated and controlled, and the blasting process is completed efficiently and reliably.

Sand blast cleaning is a widely used process in machinery manufacturing. All forged, casting, heat treatment and surface treatment parts must be blasted to remove surface oxide scale, sticky sand, old plating, and molten salt heat. Rust etc ^[3]

Sand blasting machine does not produce air

(1) Check the pressure of the pressure gauge;

(2) Check whether the remote control tube is connected incorrectly;

(3) Check whether the small rubber lining is bad.

Approach:

(1) Increase the pressure of the air compressor;

(2) Change the two-color remote control pipe joint;

(3) Replace the small rubber pad.

Sand blasting machine does not produce sand

(1) Check the pressure of the pressure gauge;

(2) Check whether the connecting air bag is loose or blocked;

(3) Check whether the adjusting screw is adjusted correctly;

(4) Check whether the large rubber or copper sleeve and the top core are damaged.

Approach:

(1) Increase the pressure of the air compressor;

(2) Tighten the screw joints; clear the clogged debris;

(3) Adjust the sand adjustment handwheel to the true direction;

(4) Replace the large rubber paraffin or copper sleeve and the top core.

Sand blasting machine

(1) Check and adjust the rubber core screws;

(2) Check whether the sand rubber core is damaged;

(3) Check whether the small rubber pads of the cut-off valve are intact, and whether the copper cake nut or rubber pad and rubber ring are worn or burst;

(4) Check the control switch for air leakage.

Approach:

(1) Tighten the rubber core screws properly;

(2) Replace the rubber core;

(3) Replace the small rubber lining, copper cake nut or rubber pad and rubber ring.