Fluidized Bed Dryer Classification Applicable Materials
With the continuous development of the application technology of fluidized bed drying equipment, there are more and more types and adaptable materials, which have been widely used in the chemical, light industry, medicine, food and other industries. Due to the different requirements of different materials and products for drying, different forms of fluidized bed dryers have emerged. According to its type, it is as follows.
1. Single-layer fluidized bed dryer
The single-layer fluidized bed dryer is the simplest type and can be divided into continuous and intermittent operation methods. Due to the wide distribution of residence time in continuous operation, it is often used in products that are easier to dry or products that do not require strict drying specifications. Intermittent operation can be used for the drying of materials with higher moisture content. For some materials with uneven granularity and certain stickiness, low bed operation with stirrer installed in the bed is mostly used.
The equipment is simple in operation, convenient in maintenance, stable in bed temperature and good in drying effect, but it has a long running period.
This machine is suitable for the drying of materials such as ammonium sulfate, ammonium chloride, anhydrous sodium sulfite, polytetrafluoroethylene, calcium gluconate, alkaline chrysin dyes, catalyst particles, anhydride casein, coconut, and salt.
2. Multi-layer fluidized bed dryer
Multi-layer fluidized bed dryers have a uniform residence time, so the actual drying time required is shorter than that of single-layer fluidized beds. The uniformity of the moisture content of the dried product can be improved and the drying quality of the product can be easily controlled. However, due to the increase in the number of layers in the multi-layer fluidized bed dryer, it is also necessary to ensure a stable fluidized state between layers to increase the annual complexity of the equipment structure. For removing water-binding materials, it is appropriate to use a multi-layered fluidized bed.
Multi-layer fluidized bed dryer is suitable for the drying of powdery granular materials such as polyester chips, sodium salicylate, aminopillin, oxytetracycline, chlortetracycline, tetracycline, tablet starch granules, powdered sugar, feed, plastics, food, etc.
3. Horizontal multi-chamber fluid bed dryer
The horizontal multi-chamber fluidized bed drying equipment overcomes the disadvantages of the complicated structure of the multi-layer fluidized bed, the bed resistance and the like. The wet material is continuously added into the first chamber of the drier by the charging machine. Since the material is in a fluidized state, it can be freely The first room is backwards. The dried material is discharged from the discharge port of the last drying chamber, and it can dry various difficult-to-dry granular materials and heat-sensitive materials, and gradually spread it to powdery materials.
This type of dryer is suitable for polyvinyl chloride resin, polypropylene resin, nylon 1010, o-chlorobenzoic acid, tetracycline, oxytetracycline, chloramphenicol, liver powder, powdered sugar, citric acid, oxalic acid, chlorinated rubber and other materials. dry.
With the continuous development of the application technology of fluidized bed drying equipment, there are more and more types and adaptable materials, which have been widely used in the chemical, light industry, medicine, food and other industries. Due to the different requirements of different materials and products for drying, different forms of fluidized bed dryers have emerged. According to its type, it is as follows.
1. Single-layer fluidized bed dryer
The single-layer fluidized bed dryer is the simplest type and can be divided into continuous and intermittent operation methods. Due to the wide distribution of residence time in continuous operation, it is often used in products that are easier to dry or products that do not require strict drying specifications. Intermittent operation can be used for the drying of materials with higher moisture content. For some materials with uneven granularity and certain stickiness, low bed operation with stirrer installed in the bed is mostly used.
The equipment is simple in operation, convenient in maintenance, stable in bed temperature and good in drying effect, but it has a long running period.
This machine is suitable for the drying of materials such as ammonium sulfate, ammonium chloride, anhydrous sodium sulfite, polytetrafluoroethylene, calcium gluconate, alkaline chrysin dyes, catalyst particles, anhydride casein, coconut, and salt.
2. Multi-layer fluidized bed dryer
Multi-layer fluidized bed dryers have a uniform residence time, so the actual drying time required is shorter than that of single-layer fluidized beds. The uniformity of the moisture content of the dried product can be improved and the drying quality of the product can be easily controlled. However, due to the increase in the number of layers in the multi-layer fluidized bed dryer, it is also necessary to ensure a stable fluidized state between layers to increase the annual complexity of the equipment structure. For removing water-binding materials, it is appropriate to use a multi-layered fluidized bed.
Multi-layer fluidized bed dryer is suitable for the drying of powdery granular materials such as polyester chips, sodium salicylate, aminopillin, oxytetracycline, chlortetracycline, tetracycline, tablet starch granules, powdered sugar, feed, plastics, food, etc.
3. Horizontal multi-chamber fluid bed dryer
The horizontal multi-chamber fluidized bed drying equipment overcomes the disadvantages of the complicated structure of the multi-layer fluidized bed, the bed resistance and the like. The wet material is continuously added into the first chamber of the drier by the charging machine. Since the material is in a fluidized state, it can be freely The first room is backwards. The dried material is discharged from the discharge port of the last drying chamber, and it can dry various difficult-to-dry granular materials and heat-sensitive materials, and gradually spread it to powdery materials.
This type of dryer is suitable for polyvinyl chloride resin, polypropylene resin, nylon 1010, o-chlorobenzoic acid, tetracycline, oxytetracycline, chloramphenicol, liver powder, powdered sugar, citric acid, oxalic acid, chlorinated rubber and other materials. dry.
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