Sichuan customers order disc vacuum dryer successfully delivered

A customer in Sichuan ordered a set of 304 stainless steel plg1200 * 11 disc vacuum dryer of our company. The feeding mode is mixing feeding, the receiving mode is air closing discharging, the dust removal method is bag dedusting, and the solvent recovery method is cooling and collecting material around finned tubes.

A customer in Sichuan ordered a set of 304 stainless steel plg1200 * 11 disc vacuum dryer of Haomai drying company. The feeding mode was mixing feeding, the receiving mode was air closing discharging, the dust removal method was bag dedusting, and the solvent recovery method was cooling and collecting material around finned tubes.

Special design:

1. In order to prevent explosion, inert gas is used as drying medium, and closed-circuit circulation system is adopted. Explosion vent is set for main engine and gas buffer tank to ensure personal safety.

2. The system consists of heater, disc dryer, bag filter, high pressure fan, primary condenser, secondary condenser, gas buffer tank and liquid collecting tank. The whole drying is carried out in the closed environment under the protection of nitrogen, and the discharging and feeding are carried out in the closed environment, which has the characteristics of no dust and high safety.

3. The solid dust is collected in the dust collector, and the gas enters the multi-stage finned winding tube condenser (small pressure drop, large heat exchange area and good condensation effect) to condense the solvent in the hot and humid gas. The condensed solvent is stored in the collecting tank. After drying and dehumidification, the nitrogen is sent to the heater for recycling. The dried materials are discharged and collected by the fan.

4. The disc drying system is drying under the condition of high negative pressure and low air volume, so the material thickness of the equipment and the thickness of the flange are reasonably enlarged to effectively prevent the deformation of the equipment, and there are very high requirements for the sealing performance of the equipment. The first is to prevent the negative pressure from absorbing the outer gas, and the second is to prevent the toluene leakage.

Advantage Description:

1. After the equipment is dried, the hot and humid air containing solvent enters into the condenser to cool the solvent in the gas (the solvent recovery rate is more than 95%), which can not only recover the solvent but also condense the dehumidification dry gas. The recovered solvent can be recycled again, which can avoid causing waste gas pollution to the air and exceeding the emission standard, which is against the national environmental protection Law.

2. The disc dryer is a heat transfer drying equipment, which needs less hot gas, greatly reduces the fan selection, condensation heat exchange area of hot and humid gas and the use of refrigerant, and reduces the operation cost. After condensation and dehumidification, the relative humidity of hot and humid gas is reduced, the ability of absorbing solvent is stronger, and the drying efficiency is improved.

3. The system is fully sealed, and inert gas (such as nitrogen) is filled into the equipment. When drying anaerobic materials or materials containing flammable and explosive solvents, there is no oxygen in the gas, which can not be burned or oxidized. Therefore, the fire or explosion accidents of the equipment in the production process can be effectively avoided, so it is safer than ordinary equipment.

4. In addition, the company developed a series of solvent free heating machines to prevent dust from sticking on the opposite side of the tray.

5. The observation doors of the disc dryer are four opposite, and the heat source inlet and outlet pipes are placed on one side of the door, which is convenient for maintenance. The sealing strip around the access door is sealed to ensure the sealing performance of the disc dryer. The glass mirror can effectively see the operation condition of the material. The dust scraping device is installed on the door mirror.

6. Two in and two out are used in each layer, and a guide plate is added to ensure that hot water passes through every part of the panel. To achieve high efficiency without dead corner.

7. A gas buffer tank is added after the secondary condensation of the system. On the one hand, the wind speed of the system is reduced, and the dust and large water droplets or solvents are settled. In addition, the pressure of the gas changes from positive pressure to negative pressure.