Products

DLG type single cone vacuum dryer

The vacuum single cone dryer developed by Yongbang Drying is a high-efficiency multifunctional fully closed vertical vacuum drying equipment integrating decompression distillation, crushing, powder mixing and drying. The drying efficiency of the fully closed vertical vacuum spiral belt dryer is 3-5 times that of the double cone rotary vacuum dryer and vacuum box drying of the same specifications. The vacuum single cone dryer combined with special drying process can adapt to the drying of materials with high viscosity, poor thermal penetration, easy to roll and easy to clump into blocks.

Category: Multi-function dryer series

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Description

Product overview

The single cone vacuum dryer of Yongbang Drying adopts advanced technology and can handle materials such as wet powder, filter cake, paste and slurry. It is especially suitable for products with high specific gravity, viscosity and sensitivity or containing toxic or explosive solvents. Through continuous improvement of the process flow, it is suitable for the treatment of more media, from chemicals to metals and medicines.

Equipment Overview

The single cone vacuum dryer is equipped with a heating jacket by heating the cone, and the heat source is hot water, heat transfer oil or low pressure steam, so that the inner wall of the cone maintains a certain temperature. The variable frequency speed regulating motor drives the single screw belt agitator to rotate through the parallel helical gear reducer, driving the material to rotate along the cone barrel and lift from bottom to top. After the material reaches the high point, it automatically flows to the vortex center and returns to the bottom of the cone barrel under the action of gravity and inertia. The whole process makes the material forcibly heated in the cone barrel, relative convection and mixing, and heat diffuses in the material to make the material move irregularly and reciprocally, the high-frequency heat transfer and exchange of the material with the single screw belt and the surface of the cylinder wall are completed, and the effect of heating and drying is achieved in a short time. In order to make the material internal water evaporation, under the action of the vacuum pump, water vapor from the vacuum pump, such as the need to recover the liquid can be added condenser, recovery liquid storage tank recovery. After the drying is completed, open the lower discharge valve to discharge the material.

Structural features

The drying and mixing of powder is an important link in the production of raw materials, so the selection of drying and mixing equipment is the guarantee of the quality of its final product, and it is also the key to determine the cost of production and operation. The vacuum single cone dryer newly developed by Baide Drying improves the drying technology of domestic chemical and pharmaceutical industry with its unique structure and advantages.

The choice of dryer needs to meet the specific requirements and characteristics of various products and processes. Its content is mainly the following aspects
Most of the raw materials processed in the production of raw materials are heat sensitive, so the material agglomerates often appear in the drying process, which requires shortening the drying time as much as possible to improve the drying efficiency.
2. In the production of materials, the purity of the circulating gas used in the drying process will have a great impact on the quality of the materials. The equipment uses a unique gas technology, so that the impact of the gas on the drying process is reduced. From the point of view of operating economy, it is desirable that all process lines can be fixedly installed, thereby saving the swing space required by similar double cone dryers.
In order to make the whole process continuous and reduce the leakage loss of materials at the same time, the solid discharge flow of the dryer is controllable. This can reduce the workload of manual loading and unloading in the clean area and prevent the phenomenon of material flushing.

structure and characteristics

★The working process of the vacuum single cone dryer is intermittent batch operation. After the wet materials enter the silo, heat is supplied through the jacket of the cylinder wall and the inside of the propeller, so that the heat supply area reaches 140 of the whole container area, and the materials are heated and dried. And select the corresponding cone type drying mixer model (working volume) to achieve the ideal drying effect. The hybrid dryer with the upper drive structure has the characteristics of high efficiency drying and mixing ability, abundant space and more convenient for users to carry out maintenance.

★Smooth operation, protection of crystal form

The straight-empty single-cone dryer does not use any auxiliary tools in the drying and mixing process, and only uses the stirring of the heating spiral belt in the cone, which makes the materials get shear and dispersion continuously except the lifting from the stirring spiral, ensuring that all the materials in the silo can get full movement, and making the materials not be squeezed by any other external force except the lifting from the screw, the invalid friction between the powder and the equipment and the powder grain is avoided, and the invalid friction is often the main factor leading to the destruction of the crystal form of the material. This is also the fundamental reason why the vacuum single cone dryer can keep the crystal form of the material intact during the operation.

★Top drive eliminates the possibility of contamination of the product from the shaft seal.

Using top drive and relative bottom drive, the equipment can avoid the following disadvantages: the stirring paddle must be disassembled with special equipment for cleaning and maintenance. it is difficult to seal the shaft seal of the stirring paddle and lacks quality assurance.

★Low operating energy costs and high mixing efficiency

Using motor drive, the design is unique, the spiral driven by the operation of the motor is used to lift the material, and there is no separate energy consumption for blanking. It is particularly worth noting that in the mixing table and drying process, the traditional mixing and drying equipment provides a belt mixing award. Its working principle is that when stirring motion, the moving material is like a whole, and a large amount of energy consumption is used for the circular motion of the whole material, so the drying efficiency provided by this stirring is low. However, the vacuum single cone dryer provides a conical inner heating spiral belt stirring. The whole stirring paddle moves circularly around the axis line of the conical silo to ensure that the materials in different parts of the whole container can be stirred. With the stirring of the spiral belt, the materials at the bottom of the silo are gradually lifted to the upper part of the container, and then naturally fall, thus circulating. This stirring mode enables the materials in the container to be fully and evenly mixed, eliminates the possibility of material agglomeration during the drying process, and greatly improves the mixing and drying efficiency of the materials. Moreover, it has the advantages of a wide range of processing capacity and low energy consumption per unit mass.

★Simple operation and convenient maintenance

The mechanical structure of the vacuum single cone dryer is simple and effective, easy for operators to understand, and simple button control makes the operation process very simple. Some maintenance work can be completed smoothly and quickly even without professionals. The set manhole can easily adjust and maintain the movement screw without complicated disassembly. The vulnerable parts of the equipment are very few, the driving unit such as the bearing box is arranged at the top of the silo, the user can easily detach the whole unit during maintenance, and the driving unit at the top has plenty of space.

Technical parameters

Equipment Model	DLG-500	DLG-750	DLG-1000	DLG-1250	DLG-1500	DLG-2000	DLG-3000
Effective volume (L)	500	750	1000	1250	1500	2000	3000
Full volume (L)	650	800	1220	1600	1900	2460	3680
Heating area (m2)	4.1	5.2	7.2	9.1	10.6	13	19
Motor power (KW)	11	11	15	15	18.5	22	30
Net weight of equipment (Kg)	1350	1850	2300	2600	2900	3600	4100
Stirring speed (rpm)	50	45	40	38	36	36	34
Total equipment height H(mm)	3565	3720	4165	4360	4590	4920	5160
Container height H1	1455	1610	1965	2160	2300	2590	2380
Height of ear socket H2	895	995	1315	1480	1630	1860	1900
Inner width of pot body D1	1100	1200	1400	1500	1600	1750	2100
Mounting ear socket width D3	1300	1350	1600	1750	1900	2050	2400

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