Comparison between a new type of automatic vertical dryer and traditional single drum dryer

The quality of drying and the control of the activity of slag and other materials are crucial in the production process, but cement companies generally ignore this issue. Taking dried slag as an example, the drying temperature cannot exceed 450 degrees. If the temperature exceeds 450 degrees, the activity of slag will be reduced, thereby impairing the potential benefits of customers. If the temperature is too low, the evaporation intensity will also be reduced. If the same production volume needs to be maintained, the heat exchange area must be increased, which means that the specifications of the equipment are large and the cost of the equipment purchased by the customer increases. How to choose the right drying system to improve the drying efficiency of the company and reduce the cost of the company, we must comprehensively understand the advantages and disadvantages of various dryers.
The traditional single-cylinder horizontal dryer is gradually eliminated by the market due to its low utilization of thermal energy and excessively high drying costs. At present, there are two types of drying equipment in China's cement industry: horizontal dryers and vertical dryers. Horizontal dryers mainly include the traditional single cylinder dryer and the new three-barrel dryer; vertical dryers mainly include the traditional vertical dryer and the new automatic vertical dryer.
Now the cement industry's drying equipment is mainly represented by horizontal three-barrel dryers and new automatic vertical dryers. The following is a comparative analysis of the advantages and disadvantages of the above two dryers:
Horizontal three-cylinder dryer compared with the traditional single-cylinder dryer, its heat energy utilization greatly improved, the theoretical value of 80% to 85%. And it has the advantages of investment and land occupation. However, the horizontal three-cylinder dryer has four driving parts, 32 bearings, and 12 gears, which have many hidden trouble points. Moreover, the middle tube and the outer tube lifting plate are not easy to maintain. The horizontal three-cylinder dryer has a certain time of drying, but the material moisture is constantly changing, which does not match with the heating, leading to the inability to ensure the drying quality, thus affecting the grinding system efficiency of the ball mill. It may be too dry to waste energy.
Compared with the traditional vertical dryer, the new automatic vertical dryer has a completely different principle of drying. The new automatic vertical dryer uses the principle of edge cutting, compared with the traditional principle of center blanking. , More reasonable science. The traditional vertical dryer has the disadvantages of easy clogging of materials, high energy consumption for drying, and inability to ensure drying quality.
The new automatic vertical energy-saving drying machine not only completely solves the problem of the easy blocking of the traditional vertical dryer, but also the automatic control of the entire drying process adopts the most advanced corresponding dual conversion technology and can be carried out according to the requirements of users. Adjusted to ensure the quality of drying, the theoretical utilization of thermal energy of about 92%. According to the situation of a large amount of waste heat resources of cement companies, the use of the remaining heat to dry the materials achieves zero consumption of energy for drying materials and greatly reduces the cost of the enterprise. Under the premise of continuous change of the waste heat temperature, gas volume and material moisture, it is necessary to ensure the normal operation of the kiln system and ensure the quality of the drying materials. It can be seen that the waste heat drying is a system engineering with higher technical content requirements.

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