Hydrocycloneseparation dryer for solid-liquid separation of water-bearing granular materials

Abstract

The invention discloses a hydrocycloneseparation dryer for solid-liquid separation of water-bearing granular materials. The hydrocycloneseparation dryer comprises a hydrocyclone separation drying device (I) and an air supplying device (II); the hydrocyclonedrying device comprises an outer cavity (1), an upper end cover (2), a double-layer spiral filtering flow passage (3) and an air supplying pipe(4); the double-layer spiral filtering flow passage comprises a water tank (31) and a sieve plate (32); and the air supplying device comprises a fan (5), an air duct heater (6) and a venturi air supplying device (7). The hydrocyclonedrying device is connected with the air supplying device through a connecting elbow pipe (8). According to the hydrocycloneseparation dryer for solid-liquid separation of the water-bearing granular materials, the length of a separation flow passage per unit volume is increased, the double-layer spiral filtering flow passage is adopted, and wind drying is combinedwith the double-layer spiral filtering flow passage, so that the particle drying efficiency is improved. According to design, collision of particles in the drying process is reduced, the drying efficiency of the particles is improved and the volume of the hydrocycloneseparation dryer is effectively decreased, and especially for the difficult handling granular materials with the moisture content being greater than or equal to 95%, effective dehydration treatment can be achieved. The hydrocycloneseparation dryer for solid-liquid separation of the water-bearing granular materials is reasonable indesign, compact in structure, and easy to apply and popularize.

Description

Technical field [0001] The invention relates to solid-liquid separation and dehydration of granular materials with a diameter of 8mm to 10mm and a water content higher than 95% through cyclone separation and drying, so as to obtain low-water-content granular materials at the end of hydraulic conveying. Background technique [0002] Hydraulic transportation is a transportation method that uses liquid (usually water) as a carrier to transport solid materials through closed pipelines. Although its development has only a few decades of history, it has been widely used in metallurgy, coal, chemical industry, etc. due to its high efficiency, low cost, small area, no pollution, safety and reliability, and reasonable configuration. Many industrial fields such as water conservancy and environmental protection. [0003] In recent years, pipeline hydraulic transportation has been used as a new type of transportation technology, and it is the top five transportation modes alongside roads, rai...

AI Technical Summary

Problems solved by technology

[0005] Among them, the disadvantage of the particle slurry screen is that the water content of the treated particles is relatively large, and the collision phenomenon of the particles after multi-stage filtration is serious.

The disadvantage of the rotor centrifugal dryer is that the friction between the particles and the rotor is serious during the centrifugal dehydration process, and the attached water on the surface of the particles cannot be removed.

Therefore, the above method can no longer meet the actual production needs in some specific environments.

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