1. Cone fan/cone blower in the tunnel dryer or chamber dredger

Cone fan/cone blower?is a special-purpose fan installed in large tunnel?dryer and chamber dryer?

The application of cone fan/cone blower?in the dryer?can greatly improve the drying uniformity of all green bricks?in section of drying room.The drying process of the green?brick?is very close to the ideal model, At the same time, the automatic regulation of Cone fan/cone blower?and other drying fans can make the whole drying process of green bricks realize sequential control.Therefore, according to the drying mechanism of bricks and tiles, it is necessary for us to research the deep working mode of Cone fan/cone blower?and its influence on drying process. The reasonable arrangement and use of cone fan/cone blower?in the dryer can make the whole drying process coincide with the drying performance of bricks and tiles, and eliminate the drying defects of bricks and tiles thoroughly.

2. Drying process and drying stage of green bricks with cone fan or cone blower

The drying process is not only the mass transfer process of moisture from the inner body to the outer surface and the drying medium, but also the heat transfer process from the heat in the drying medium to the surface and the inner body.

Air convection transfers heat to the surface of the green bricks. The heat obtained from the surface of the green bricks?is transmitted to the inner part of the green bricks?by conduction. After the surface of the green bricks?is heated, the water vaporizes and evaporates, which is carried away by air. The water in the green bricks?is supplemented to the surface, and then evaporates from the surface until the green bricks?dries. It can be seen that the drying process of green bricks?can be divided into three stages:

1st, the thermal diffusion process of air heat transfer to green bricks,

2nd, the external diffusion process of water transfer from green bricks?surface to air, 3rd, the internal diffusion process of water transfer from green bricks?interior to green bricks?surface.

In the drying process, the above three processes are carried out at the same time. It can be seen that the drying process is very complex, which is related to the structure and characteristics of the green bricks, as well as the drying conditions.

3. Structure and Working Principle of Cone fan/blower in the Chamber Dryer or Tunnel Dryer

For counter-flow dryer, if the dry and hot air is simply fed from the exit of the green bricks?of dryer and the wet air is removed from the entry of the green bricks?of drer although the drying medium has a process from higher temperature to lower temperature, from drying to being gradually saturated by water vapor, which is roughly consistent with the requirements of drying medium for green bricks?in different drying stages, it is far from the drying process.

Accurate requirements:

Firstly, the green bricks?on the drying truck can not be dried equally from top to bottom; secondly, in each drying section, the temperature, humidity and air volume of the drying medium are uncontrollable; thirdly, continuous large air supply will make the internal and external diffusion of the green bricks?moisture extremely unbalanced.

4. Structure and composition of cone fan or cone blower

The Cone fan/cone blower?is composed of three parts: the supply fan, the wind drum and the rotating mechanism of the wind drum.

On the top of the dryer there is a motor drives the fan to rotate at high speed, and sucks in the drying medium to supply air to the air cylinder; the air cylinder is an octagonal conical cylinder, concentric with the fan at the lower part of the fan; the 2 symmetrical sides of the conical cylinder are provided with a jet gap as high as the drying cart, and a multi-leaf guide plate is installed on the gap to adjust the outlet angle; and the top of the cyclone is provided with a guide plate. The rotating axle sleeve of the partial fan has a hollow rotating axle, which is concentrically connected with the air duct, and is driven by another power system to rotate slowly and reversibly. The driving device of the wind drum can be equipped with one set for each cyclone, or several cyclones can share one set.

Whatever the drying stage, the slow sweep of the conical Cone fan/cone blower?is of great help to the balance of moisture diffusion inside and outside the green bricks. When the billet is swept by the Cone fan/cone blower, the main process is external diffusion. The surface moisture of the billet is brought into the dry medium. After the sweep, the external diffusion is not going on, but there is enough time to make the moisture inside the billet migrate to the surface to supplement, that is to say, the internal diffusion is the main process. When the windpipe sweeps again, the water diffuses outside and then inside. In this way, the internal and external diffusion is well balanced, and the surface of the green bricks?and the inner part of the green bricks?maintain the same drying speed.

Any interested pls advise.

+86 177 9142 2086

[email protected]

BBT-designer, supplier and manufacturer for clay brick making machine and production line

Wet mill pan/Refine roller crusher/front grid filter/tooth roller crusher/loading and unloading system