Carbon Steel HG Tumble Dryer Machine With Scrapper

HG SERIES DRUM DRYER/TUMBLE DRYER/ CYLINDRER DRYER / FLAKER WITH SCRAPPER

Features

1. High thermal efficiency.The principle of heat transfer of the cylinder dryer is heat conduction whose conducting directing keeps identical in whole operation circle.Except heat dissipation of end cover and radiation loss,all heat can be used for evaporation of wet materials on the wall of the cylinder.Thermal efficiency can reach 80%-90%.

2. Large operation elasticity and wide application.Various drying factors of the cylinder dryer can be adjusted,such as density of feeding materials/thickness of material film,temperature of heating medium,rotating speed of the cylinder etc..Which can change drying speed of the cylinder dryer.As these factors have no interrelation each other, it brings about great convenience to dry operation,and makes it applicable to drying of various materials and to meet different requirement of production.

3. Short drying period.The drying period of materials is normally 10 to 15 second,so it is suitable for heat-sensitive materials.It can be also operated under less pressure condition if it is put in vacuum.

4. Fast drying rate.As film of materials coated on the wall of the cylinder is very thin.Normally,thickness is 0.3 to 1.5mm,plus directions of heat and mass transmitting are identical,the evaporation strength on the surface of the film can keep at 30-70kg.H2o/m2

Product details:

Product preface:

HG Series Drum Dryer(Flaker) is a kind of rotating continuous drying equipment with internal heating conducting-style. Certain thickness of materials film attach to the drum from material liquid vessel under the drum. Heat is transferred to the internal wall of the cylinder through pipes and then to the external wall and to materials film, to evaporate the moisture in materials film so as to dry materials. Dried products are then scraped off by the blade fitted on the surface of the cylinder, fall down to the spiral conveyor under the blade, and are conveyed, collected and packed.

Technical specification:

Notes:

Our company produces two categories of drum scraper dryer: single cylinder and double cylinder type. We can also design double-cylinder dryer with upper material feeder in terms of request from customer.

The working principles:

Drum dryer is a kind of continuous drying equipment through steam jacket-ed heating. The rotating cylinder body is attached to a certain thickness of the liquid raw material film through the material tank set in the lower part. The sensible heat (Steam) is passed through the tubes to the inner and outer wall of the drum bodies, and then is conducted to the liquid raw material film, so that the moisture content of the raw material is rapidly evaporated and the paste reaction occurs. With the continuous rotation of the drum bodies, finally material is completely dried and the pasting process accomplishes.

The completely dried products are scraped off the rotating cylinder body by the scrapers installed in the surfaces of drums body, and then gathered in the screw conveyor at the bottom of the scrapers. At the discharge end of screw conveyor, a crushing device is set. After being crushed and flake products is to

conveyed to the clean room for weighing and packing. At this point, the drying and pasting process accomplishes.

Range of application

It is suitable for drying liquid raw materials or thick liquid in chemical industry,dyestuff industry,pharmaceutical industry,foodstuff industry,metallurgy industry and so on.

Requirements for Drum/Tumble/ Cylinder Dryer with scraper

In view of the specific situation of the company, we hereby make the following requirements to the design of our client company:

1. It is necessary that dust removal and odor removal device should be arranged (plus wet scrubber device);

2. No primary and intermediate efficiency filters are added to the air inlet;

3. Burner selected Italian Riyadh brand products;

4. To be equipped with material feeding device (using screw conveyor);

5. Boiler steel is used for the combustion part, and stainless steel is used for the in-contact part of the machine head and the drum, and carbon steel can be used for other parts;

6. The cylinder is designed to be in conformance with client’s specific requirements(such as 1.4 * 14m and etc.);

7. Add crushing and stirring device inside to prevent agglomeration of materials (through- shaft);

8. The distribution crusher should be installed at the place where the material enters the equipment through the screw conveyor, as squeezes the bulk material into strips for easy drying.

9. The equipment has a base and a burner.

10. Our company only provides equipment foundation, which is responsible for connecting electricity and water to the plant.

Flow chart:

Sketch of drum dryer structure:

From its feature, it can be divided into two types: single cylinder and double-cylinder. Otherwise it can also be divided into two types according to the operation pressure: normal pressure and decompression type.