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Bentonite dryer

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Bentonite dryer

Product introduction

Bentonite is a water-bearing clay ore mainly composed of montmorillonite. After being dried by a bentonite dryer, it can be expanded by adding water and reciprocating treatment,makes bentonite more widely used in machinery, metallurgy, drilling, petroleum, chemical, food, environmental protection and other fields.

Structural composition and principle

The bentonite dryer is mainly composed of rotating body, lifting plate, transmission device, supporting device and sealing ring. The bentonite dryer is a cylinder that is slightly inclined to the horizontal direction. The material is added from the higher end, and the high-temperature hot flue gas flows into the cylinder concurrently with the material. As the cylinder rotates, the material runs to the lower end. The copy board on the inner wall of the cylinder picks up and sprinkles the material, which increases the contact surface between the material and the airflow, so as to increase the drying rate and promote the advancement of the material. The dried product is collected from the lower part of the bottom end.

Technical characteristics of bentonite dryer

1. The cylinder body is made of 16Mn and the thickness is 20mm. When the production is abnormal or the instantaneous temperature is too high, the cylinder will not produce oxide scale, which can increase the life of the cylinder.

2. According to the characteristics of bentonite and the temperature from the feeding end to the discharging end, the movable plate (anti-adhesive) and chain hammer are used in the cylinder body to be broken at 800°, 600°, 400°, 200°, and 100°. When drying the outlet of the material, it is as small as possible to form small particles or powder, which is convenient for entering the next process.

3. Improve the lifting plate, structure and welding form to ensure that the lifting plate is prevented from breaking and falling off during the normal operation of the equipment.

4. The reducer adopts the national standard reducer produced  to make the accessories universal.

5. The supporting roller is lubricated by grease filling. The transmission gear of the dryer is lubricated by a circulating lubrication device to ensure the lubrication effect.

6. A discharge cover is provided, and a device to prevent the lifting plate from falling off is installed in the cover to protect the normal operation of the belt conveyor.

7. Reasonable design of the feeding chute angle and large inclination guide plate and the use of inclined lifting plate to prevent the material from overflowing from the retaining ring.

8. The multiple flexible sealing structure between the inlet and outlet cover and the machine body is made of tin steel sheet, which can ensure that the dry gas cannot leak under the condition of slight negative pressure.

9. A spring plate elastic connection method is used between the large gear ring and the drum to reduce the damage to the large and small gears caused by the impact load.

10. Rolling bearings are adopted for all the retaining wheels and supporting wheel devices, and all bearings adopt national standard products.

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