Possible Problems and Solutions of Drying Machines for Industrial Mines

Possible Problems and Solutions of Drying Machines for Industrial Mines Dryers are mainly used in mineral processing, building materials, metallurgy, chemical engineering, printing, and other departments to dry materials with a certain humidity or particle size. Rotary dryers are widely used due to their strong adaptability to materials, their ability to dry various materials, and their simple and reliable operation. The working process of the equipment is as follows: After the dehydrated wet material is added to the dryer, the material is evenly dispersed in the dryer and fully contacted with hot air under the overturning of the uniformly distributed plate reader in the drum, accelerating heat and mass transfer during drying. During the drying process, the material is discharged to the star-shaped discharge valve at the other section of the dryer under the action of the inclined plate and the thermal atmosphere. This machine is suitable for drying various materials with water content less than 85%, which is environmentally friendly. Problem 1: The reason why raw materials cannot be dried at one time: 1. The dryer is too small; 2. Incorrect calculation of wind pressure and flow in the air network; 3. Improper use of the dryer. Treatment methods: 1. Increase the drying temperature, but this method can easily cause fire in the dryer. A good method is to replace or modify the drying equipment; 2. Require the manufacturer to recalculate the wind pressure and flow before providing a design change plan based on the actual situation; 3. Learn the correct use method according to the company's dryer instructions. Problem 2: Reasons for ignition of raw materials in the dryer: 1. Improper use of drying equipment; 2. The drying equipment is too small to achieve the drying effect and forced heating causes fire; 3. There is a problem with the design principle of the drying equipment; 4. The raw material cannot be sucked away, resulting in a fire in the dryer. Handling methods: 1. Learn the correct use methods according to the company's dryer instructions; 2. Replace or modify the drying equipment; 3. Require the manufacturer to replace or modify the drying equipment; 4. Check whether the drying equipment is installed correctly, leaks air, or increases air pressure. Problem 3: Reasons for the dryer's explosion: 1. The drying temperature is too high, causing a fire and combustion in the drying equipment; 2. The drying equipment is blocked. Treatment methods: 1. Reduce the drying temperature; 2. Clean the drying equipment. Problem 4: After drying, the finished material cannot be discharged normally. Reasons: 1. Improper installation of drying equipment, air leakage, or incorrect installation; 2. Drying equipment design issues, insufficient wind pressure. Treatment method: Check whether the installation is correct according to the installation drawings, and check whether there is air leakage at the pipeline interface. Problem 5: Reasons for discharge from the separator stack: 1. The separator is too small; 2. There is a problem with the separator design; 3. The wind pressure calculation of the air network is incorrect. Treatment methods: 1. Replace or modify the separator; 2. Water vapor is discharged from the lower outlet of the separator. Problem 6: Uneven dryness and wetness of materials, and abnormal front rod making. Reasons: 1. Improper use of drying equipment; 2. Raw materials are agglomerated (for example, raw materials are thawed and agglomerated in northern winter). Handling methods: 1. Learn the correct use methods according to the company's dryer instructions; 2. Crush the agglomerated raw materials before drying. Problem 7: Reasons for waste of fuel in drying equipment: 1. Poor thermal insulation performance of equipment; 2. There is a problem with the equipment design principle; 3. There are problems with the design and manufacture of the furnace.