Single tube cooler

Petroleum and Gas

A single-tube cooler is a machine that achieves refrigeration effects through steam compression or absorption cycles. It dissipates the heat of the dried material and reduces moisture content. It is mainly used to cool the formed particles, and the moisture content is reduced while the particle temperature is lowered, and the particle strength is also correspondingly increased.

A single-cylinder cooler consists of a rotating cylindrical cooling device. It is mainly used to cool high-temperature clinker that has been fired in rotary kiln. The machine has a simple structure and reliable operation. It is used in the refractory material industry's rotary kiln system to cool clinker as clay, magnesia sand, and sintered dolomite. The single-cylinder cooler is one of the main equipment configurations in the rotary kiln production system, a simple structure, good stability, and reliable operation.

Working principle

Dry wet material is delivered by belt conveyor or bucket elevator to a hopper, and then through the hopper's feeder into feed end of the feed pipe. The slope of the feed pipe should be greater than the natural angle of the material to ensure that the material flows smoothly into the cooler. The cooling is a rotating cylinder that is slightly inclined from the horizontal. Material is added from the higher end, and the heat carrier flows out from the lower end, contacting the material incurrent, and also flowing into the cylinder with the material. As the cylinder rotates, the material moves to the lower end under the action of gravity. During the forward movement of wet material in the cylinder, it is directly or indirectly heated by the heat carrier, which allows the hot material to be cooled, and then discharged from the discharge end through a beltor or screw conveyor. There are lifting blades installed on the inner wall of the cylinder, which play a role in lifting the material and then spreading it out, increasing the contact between the material and the airflow to improve the cooling rate and promote the advancement of the material. The cooling medium is generally divided into cold air, etc. After passing through the, the heat carrier generally needs to be captured by a cyclone dust collector to collect the material carried in the gas. If it is necessary to further reduce the dust content in the gas, it should also be discharged after passing through a bag filter or wet dust collector.