US 2022/0268668 A1 · Pneumatic Aggregate Sample Device

Abstract

The present invention comprises an aggregate sample device comprising an air compression system mounted to one side of an aggregate conveyor belt frame. Mounted on the opposite side of the conveyor is a crossover housing that is joined to a discharge chute. The compression system is comprised of a compressor that charges an air tank. Projecting out of the air tank is a air discharge line that has on its terminal head a nozzle which is inserted into an aperture located in an end plate of the crossover housing such that the nozzle is in direct proximity to aggregate traveling on an aggregate conveyor. The compression system is charged such that the air tank reaches an ideal pressure and then an operator deploys a switch which releases a volume of air at high pressure such that a sample of aggregate on the conveyor is blown off the conveyor, constrained by the crossover housing and directed into the discharge chute where the aggregate is directed downward into a sample receptacle.

Claims19

Dependent claims

A pneumatic aggregate sampling system comprising:

an air compression storage system comprising a power source, a motor, an air compressor and a tank whereby air is introduced into the tank for storage;
a threaded aperture in the tank whereby there is an air discharge line that is connected to the threaded aperture in the tank and a high speed gate valve in line with the air discharge line and a nozzle located at a terminal end of the air discharge line;
a crossover housing having a top plate, side plates and an end plate mountable to a belt conveyor sub-frame such that it is positioned directly above a belt conveyor that is conveying an aggregate material;
a crossover housing aperture located in the end plate of the crossover housing that is adapted to receive the nozzle that is connected to the air tank;
and
a vertical discharge chute connected to the crossover housing located on the opposite side of the belt conveyor from the air compression storage system.

3 more elements

A method for sampling the size of aggregate traveling on a conveyor belt comprising the steps of:

providing a pneumatic aggregate sampling system further comprising an air nozzle adjacent to a conveyor belt that is carrying aggregate whereby said air nozzle supplies a high pressure burst of air into a crossover housing having a top plate, side plates and an end plate whereby said crossover housing is mountable to a belt conveyor sub-frame such that it is positioned directly above a belt conveyor that is conveying an aggregate material and a crossover housing aperture located in the end plate of the crossover housing that is adapted to receive the nozzle that is connected to an air supply line and a vertical discharge chute connected to the crossover housing located on the opposite side of the belt conveyor from the air nozzle;
attaching and positioning said pneumatic aggregate sampling system onto a conveyor belt sub-frame;
placing a sampling bin underneath the discharge chute;
operating an electronically controlled high speed gate valve in line on the air supply line located before the air supply line reaches the nozzle such that a sample of aggregate is blown off the conveyor belt and into the sampling bin;
and
retrieving the sample of aggregate to test for size consistency.

3 more elements

Dependencies are inferred from the claim text.

Pneumatic Aggregate Sample Device

Life of this patent

Pneumatic Aggregate Sample Device

Life of this patent

Abstract

Claims19