High Efficiency Calcium Carbonate Spin Flash Dryer

Calcium carbonate (CaCO₃) is an inorganic compound, commonly known as limestone, limestone, stone powder, marble, etc. Calcium carbonate is neutral, basically insoluble in water, and soluble in hydrochloric acid. It is one of the common substances on earth and exists in aragonite, calcite, chalk, limestone, marble, travertine and other rocks, and is also the main component of animal bones or shells. Calcium carbonate is also an important building material and is widely used in industry.

If calcium carbonate is used as a compound, it is too widely distributed in nature. The main component of common marble is calcium carbonate. Specifically, it is the main component of some commonly used calcium supplements in medicine, which means that the calcium we often supplement comes from these calcium salts such as calcium carbonate and calcium sulfate.

Calcium is a very important electrolyte in our body, which can reduce the excitability of neuromuscular and is an important component of skeleton and teeth. Calcium supplementation is generally used in infants, postmenopausal women or patients with severe osteoporosis, or some patients with fractures or nonunion of fractures. These patients need calcium supplementation.

In addition to calcium supplementation, it is also necessary to supplement some vitamin D, which can promote the utilization of calcium, that is, by supplementing these calcium salts, these electrolytes needed by bones, teeth, and nerve muscles can be supplemented to supplement nutrition.

Calcium carbonate plays an important role in both nature and medicine. Griffin has carefully developed a high-efficiency calcium carbonate spin flash dryer, which has the following advantages

1. High drying strength. Because the material is micronized by centrifugation, shearing, collision and friction, it is in a highly dispersed state, and the relative velocity between the gas and solid phases is relatively large, which strengthens mass and heat transfer.

2. Suitable for heat-sensitive materials. The high temperature area at the bottom of the dryer has high gas velocity, and it is difficult for the material to directly contact the hot surface; in addition, it is equipped with a cooling jacket and a stirring tooth with a sharp plate, which solves the problem of the material sticking to the wall and coking.

3. The process is simplified. Compared with other types of dryers, using a flash dryer to dry paste, mud, filter cake and other materials can be dried into a uniform powder product at one time, eliminating the need for crushing, screening and other processes.

4. Effectively control the final moisture and fineness. The adjustment of the temperature of the feed and hot air and the coordination of the classifier can fully control the final moisture content and the particle size of the finished product, thus ensuring that the moisture content and fineness of the product are uniform.

The working principle of the rotary flash dryer The clean air heated by the heat exchanger is blown into the air inlet, spun into the annular gap at the bottom of the drying chamber at a suitable speed, and then enters the drying chamber in the tangential direction, and rises in a spiral shape: at the same time , the material is quantitatively fed into the tower by a feeder with stepless speed regulation. In the drying tower, the material and the hot air undergo sufficient and efficient mass-heat conversion, and the dried powder material is transported to the separator together with the hot air, where the finished product is collected and packaged, and the exhaust gas is further processed by the dust removal device and then emptied.