Alcohol is bad drying technology and equipment of the latest progress

Alcohol is bad is made worse slag of alcohol production, its number is 0.65 times the production of alcohol. Alcohol worse all contain different levels of protein and other useful elements, its highest protein content of maize (worse) one can reach 28% ~ 30%, and can be used as high quality feed

Alcohol is bad is made worse slag of alcohol production, its number is 0.65 times the production of alcohol. Alcohol worse all contain different levels of protein and other useful elements, its highest protein content of maize (worse) one can reach 28% ~ 30%, and can be used as high quality feed, the market price of 1000 yuan/ton; Contain low protein of cassava worse can also be used as feed or fertilizer, avoiding market price in 300 ~ 350 yuan/ton.

At present all kinds of liquor, converted into alcohol of nearly 30 million tons, such as press computation of vinasse yield is the 0.65 times of alcohol, the quantity is considerable. If its dry in time will be a considerable fortune.

But without processing or improper handling, can ferment alcohol is bad for short periods of time, causing serious pollution of the environment.

Scholars and experts at home and abroad in recent years, are of the utmost importance to this's grain drying technology and equipment has a great development:

The current international's grain drying equipment is mainly divided into two broad categories

A tube bank dryer with steam as heat source; One is the roller drier hot air as heat source.

Tube bank dryer with steam as heat source

The principle diagram of the tube bank dryer

1, the structure principle of

With a number of steel tube connection between two high pressure head, thunder flanked on each side by a hollow shaft, respectively with bearing support, one end of the motor through reducer drive tube bundle with low-speed rotation, steam pipe through rotary joints with hollow shaft connection, steam through rotary joint into the tube bundle, contact with the tube bundle from the inlet into the wet material, heat exchange, so that the wet material moisture evaporation, due to the tube bundle rotation, outer spiral copy board to promote the material from the inlet to the discharging mouth movement, and makes the material moisture evaporation, until meet the drying requirements, finished product from the discharging mouth eduction, latent heat released after condensing into hot water and steam in the tube bundle from the other side of the hollow shaft through the rotary joint.

Main performance:

1, the bundle of dry strength is 4.5 ~ 5 kg/m 2 (steam pressure is 6 kg/cm2)

2, the steam consumption: 1.4 kg / 1 kg of water

3, reference price: 1000 yuan/m2 (bundle size)

Features:

1, the equipment is compact, covers an area of small

2, work is smooth, easy operation

3, waste heat available evaporator

Disadvantages:

1, pipe wall corrosion, short service life, maintenance inconvenience, and maintenance costs

2, the use of secondary energy (steam), comprehensive thermal efficiency is low

3, drying cost is higher

Applicable to enterprises with the remaining steam.

Polycyclic drum drying machine

Structure features:

1, three unequal diameter roller sets, to form a polycyclic roller, inner and central cylinder inside and outside surface, within the outer ring roller table with copy board. Three-layer cylinder with the same number of revolutions, the material is: wet material from the inner barrel, from the end of the back into the middle cylinder head end and then transferred to the outer cylinder, finally by the outer tube end.

Compared with traditional advantages of single cylinder:

1, length reduced two-thirds, workshop area is reduced

2, machine, steel consumption reduced greatly, reduced due to its heavy machine, installed capacity is greatly reduced, the corresponding and lower power consumption.

3, three-ring roller cross-sectional area, can design according to the material drying characteristics, namely material different precipitation phase, within the cylinder course time is different, so that the machine performance is greatly improved.

4, heat preservation effect is good, high heat energy utilization.