Novel crank pull rod type vibration fluid bed drying machine

Abstract

The invention relates to a novel crank pull rod type vibration fluid bed drying machine which comprises a machine body. A sieve plate is arranged inside the machine body, a vibration cross beam which supports the machine body is arranged on the lower portion of the machine body, and the vibration cross beam is connected with a driving motor through a linkage mechanism. The vibration cross beam rotates under the driving of linking rods, so that the machine body moves up and down and front and back. The novel crank pull rod type vibration fluid bed drying machine is wide in application range, good in drying quality and high in efficiency.

Description

technical field [0001] The invention relates to a novel crank rod type fluidized bed drying machine for drying powdery, flake and granular materials, belonging to the technical field of drying machines. technical background [0002] The existing vibrating fluidized bed dryer is driven by two vibrating motors installed on both sides of the body, and the exciting force is transmitted to the sieve plate through the body. There are fatal flaws in its structural principle: [0003] (1) The motor speed is fast, the frequency is high, the amplitude is small, and the fluidity of the material is poor. Due to the high frequency, the noise is particularly loud, and it is in a high-frequency state for a long time, and the equipment life is low. [0004] (1) Difficult to synchronize the operation of the vibration motor and the asymmetry of the excitation force, resulting in asymmetric forces on both sides of the bed, easy layering of the material layer, partial flow, local empty beds, e...

AI Technical Summary

Problems solved by technology

[0003] (1) The motor speed is fast, the frequency is high, the amplitude is small, and the fluidity of the material is poor. Due to the high frequency, the noise is particularly loud, and the equipment is in a high-frequency state for a long time. low life

[0004] (1) The vibration motor is difficult to run synchronously and the excitation force is asymmetrical, resulting in asymmetrical force on both sides of the bed, easy stratification of the material layer, biased flow, local Empty bed, etc.; large heat loss, difficult to control moisture, low drying efficiency, poor quality effect

[0005] (2) The traditional power consumption is large; a considerable part of the exciting force is transmitted to the ground, causing ground vibration, which makes it difficult to install equipment on the floor; the noise is large, and the production poor environment

[0006](3) The material feeding speed is fast and the adjustment range is small; although the traditional vibrating fluidized bed can adjust the feeding speed by adjusting the magnitude and direction of the vibration force, it can only It is adjusted in a certain range relative to the amplitude of the equipment itself, but the overall feeding speed is still relatively fast, the adjustment range of the material residence time is small, and the residence time is short, which is not suitable for some materials that need to be dried for a long time

[0007](4) The traditional vibrating fluidized bed is not large, and the degree of large-scale is low. The area of ​​a single bed can reach 11-12M2 at most, and the drying capacity is limited. It is difficult to dry large quantities of materials at one time

[0008] (5) Uneven drying: Although the traditional vibrating fluidized bed feeds more uniformly than the fixed bed, due to structural defects, the particle feeding speed is still not ideal Consistent, the residence time is not uniform enough, the particle back-mixing phenomenon is serious, and the uneven drying of the product is a fatal problem

[0009] (6) The service life of the equipment is low: the steel plates on both sides of the bed directly bear the 360° high-frequency force of the vibration force, the steel plates are easy to deform, and the welds are easy to vibrate and crack. It is often cracked by vibration; the vibration motor participates in the vibration, and the equipment is not resistant to high temperature;

[0010] (7) High energy consumption, low degree of automation, low precision of parameter control, and poor production level: the moving speed of materials is uneven, and the moving speed of products cannot be accurately controlled by equipment Cannot adjust parameters dynamically

[0011] (8) Severe entrainment of air flow: the traditional vibrating bed fluidization chamber is not large, the height is too low, and the fine powder has no time to settle, and it is easy to be sucked away by the exhaust gas, so The traditional vibrating fluidized bed air entrainment is serious, and the dust removal load behind is large

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