Quality appraisal of slime dryer

slime dryer is a rotary drum dryer equipment based on its working principle. It is a very mature drying equipment produced by mining equipment manufacturers. It is suitable for drying coal slime, sludge, magnetic, heavy and floating concentrates of metal and non-metallic minerals, and clay in the cement industry. It is characterized by high productivity and easy operation. The cylinder is a horizontal rotary cylinder with various staggered plates at different angles welded from front to back. The interior of the coal slime dryer cylinder can be designed and equipped with refractory materials for heat insulation according to different user needs. The feed end is equipped with a door ring and a spiral plate to prevent material from being dumped. It has the characteristics of reasonable structure, excellent production, high output and low energy consumption.
In the case of coal slime dryer quality appraisal, Zhongke Testing can provide coal slime dryer quality appraisal services.

There are many types of slime dryers. According to the equipment type, they can be divided into: drum type, disc type, belt type, spiral type, drum type, spray type, fluidized bed type, paddle type and other forms.
can be divided into direct heating type, indirect heating type and direct-indirect combined heating type according to the contact mode between hot air and materials.
can also be divided into dry material back-mixing and wet material direct entry according to different feeding methods.

JC/T 335-2006 Rotary dryer for cement industry

For production needs, Company A and Company B customized two coal slime dryers. Both parties agreed that the output of the coal slime dryer should reach 20 tons per hour. The slime dryer was delivered and installed but could not be used normally when formal production began. After Company B repaired the machine, it still could not produce normally. Company A required Company B to return the product and refund the purchase price. A dispute arose between the two parties, resulting in a lawsuit.
After the case was brought to the local court, the court entrusted our company to conduct quality appraisal of the coal slime dryer.
identification and analysis results:
The expert group conducted discussions and comprehensive technical analysis based on the relevant information of the "coal slime dryer" provided by the client, the on-site investigation and inspection results, and the sampling inspection results, and made the following quality analysis opinions:
Because the outer wall of the boiling furnace cracked, the welds of the fixed steel plates on the outer wall exploded, and the supporting wheels, gears and installation foundations shifted significantly toward the rear, the dryer involved could not be started and operated to achieve actual production capacity. Even when it can operate, compared with the drying capacity of other plants, the production capacity of the same type of dryer with this specification is lower than the 500 tons of peat per day required by the contract.