Vertical disc continuous dryer

Product Introduction

Vertical disc continuous dryer is a type of conductive continuous drying equipment. Its unique structure and working principle determine its high thermal efficiency, low energy consumption, small footprint, simple configuration, convenient operation and control, and good operating environment. It is widely used in drying operations in industries such as chemical, pharmaceutical, pesticide, food, feed, and agricultural and sideline product processing. Highly praised in practical applications across various industries. We currently produce three types of products: atmospheric pressure, sealed, and vacuum1200、1500、2200、3000Four types,A(carbon steel)、B(Uniformly distributed stainless steel in contact with the material)、C(In)BOn the basis of this, stainless steel will be added to the steam pipeline, main shaft, and bracket, as well as stainless steel lining for the cylinder and cover. Three materials, dry area4～180m 2There are hundreds of models of series products, and various auxiliary equipment can be provided to meet the drying needs of users for various materials.

Working principle

The wet material is continuously added to the upper layer of the drying disc of the dryer by the feeder, and the rake arm with rake blades rotates to make the rake arm rotate and make the rake blades continuously flip the material. The material flows along an exponential spiral over the surface of the drying disc, and the material on the small drying disc is transferred to the outer edge, where it falls onto the outer edge of the large drying disc below. The material moves inward on the large drying disc and falls into the next layer of small drying disc from the middle discharge port. The large and small drying plates are arranged alternately up and down, allowing the material to flow continuously through the entire dryer. A hollow drying tray is filled with heating medium, which includes saturated steam, hot water, and thermal oil. The heating medium enters from one end of the drying tray and exits from the other end. The dried material falls from the subsequent drying tray to the bottom layer of the shell, and is then transferred to the discharge port by the rake blade for discharge. The dry material discharged from the bottom layer can be directly packaged. Moisture escapes from the material and is discharged through the dehumidification port located on the cover. The moisture in the vacuum type vertical disc dryer is discharged through the vacuum pump port located on the cover. By adding auxiliary equipment such as fin heaters, solvent recovery condensers, bag filters, dry material mixing mechanisms, and induced draft fans, the drying production capacity can be improved, while facilitating solvent recovery and enabling pyrolysis and reaction operations.

Performance characteristics

(one)Easy regulation and strong applicability

Adjust the thickness of the material layer, spindle speed, number of rake arms, rake blade type and size to achieve the drying process.

Each layer of the drying tray can be separately heated or cooled by adding a heating medium or a cooling medium to the material, ensuring accurate and easy temperature control of the material.

The retention time of materials can be adjusted.

The material has a single flow direction, no backmixing phenomenon, uniform drying, stable quality, and does not require further mixing.

(two)Easy to operate and convenient

The operation of starting and stopping the dryer is very simple.

After stopping the feeding, the scraper blades for conveying material can quickly empty the material inside the dryer.

Through the special large inspection door mirror, careful cleaning and observation can be carried out inside the equipment.

(three)Low energy consumption

The material layer is very thin, the spindle speed is low, and the material conveying system requires less power and consumes less electricity.

Drying with conductive heat results in high thermal efficiency and low energy consumption.

(four)Good operating environment, recyclable solvents, and dust emissions meet requirements

◎ Normal pressure type: Due to the low airflow velocity and low humidity distribution inside the equipment, it is difficult for dust to float to the equipment, so the exhaust gas discharged from the humidity outlet of the equipment contains almost no dust.

Sealed type: equipped with a solvent recovery device, which can easily recover organic solvents in the wet gas. The solvent recovery device is simple and has a high recovery rate. For flammable, explosive, toxic, and easily oxidizable materials, nitrogen can be used as a carrier gas for closed-loop circulation to facilitate operation. Specially suitable for drying flammable, explosive, and toxic materials.

Vacuum type: a vertical disc dryer operated in a vacuum state, particularly suitable for drying heat sensitive materials.

(five)Easy installation and small footprint

The dryer is shipped as a whole and only needs to be lifted into place for easy installation and positioning.

Due to the layered arrangement and vertical installation of the drying tray, even if the drying area is large, the footprint is also very small.

Technical Characteristics

(one)drying tray

◎ Design pressure: generally0.4MPa, Da Da Da Da1.6MPa.

◎ Usage pressure: generally ≤0.4MPa, High reachable1.6MPa.

Heating medium: steam, hot water, thermal oil, drying disc temperature＜100Heating with hot water at ℃,100℃～150At ℃, use ≤0.4MPaHeating with saturated steam or superheated steam,150℃～320Heat with thermal oil at ℃.

(two)Material conveying system

◎ Spindle speed:1～10Conversion and variable frequency speed regulation.

◎ Rake arm: There are drying plates on each layer2～8A rake arm fixed on the spindle.

◎ Rake blade: Twisted onto the rake arm, it can float up and down with the disc surface to maintain contact, and has various forms.

◎ Rolling: For materials that are prone to clumping and need to be crushed, adding rolling at appropriate positions can enhance heat transfer and drying processes.

(three)There are three types of shells: atmospheric pressure, sealed, and vacuum

◎ Atmospheric pressure type: cylindrical or octagonal prism type, with two types of structures: integral and split. The main pipeline for the inlet and outlet of the heating medium can be located inside or outside the shell.

Sealed type: cylindrical shell that can withstand5KpaInternal pressure, the main pipeline for the inlet and outlet of the heating medium can be inside or outside the shell.

◎ Vacuum type: cylindrical shell with a design pressure of0.1MpaThe main pipeline for the inlet and outlet of the heating medium is located inside the shell.

(four)air heater

Generally used in situations with high evaporation to enhance drying efficiency.

Adapt to materials

Drying, pyrolysis, combustion, cooling, reaction, sublimation