Open AccessRESULTS OF EXPERIMENTAL STUDIES OF A MOBILE UNITFOR LIQUID MANURE SEPARATION INTO FRACTIONS
Author(s) -
A.V. Baryshnikov,
AUTHOR_ID
Publication year - 2021
Publication title -
vestnik altajskogo gosudarstvennogo agrarnogo universiteta
Language(s) - English
Resource type - Journals
ISSN - 1996-4277
DOI - 10.53083/1996-4277-2021-205-11-98-103
Subject(s) - liquid manure , filtration (mathematics) , auger , dewatering , manure , sediment , moisture , environmental science , water content , separation (statistics) , geography , geology , geotechnical engineering , mathematics , statistics , agronomy , meteorology , paleontology , biology , archaeology
The research conducted earlier in our country was mainly aimed at solving the problem of rational use of liquid manure produced in large pig breeding enterprises. How-ever, more than 70% of pork is produced on small, medi-um-size and large farms represented by several technolog-ical premises. In these enterprises, the issues of pro-cessing liquid manure as the experience of their operation in the Southern Federal District shows are resolved unsat-isfactorily. One of the advanced solutions is the use of a mobile unit for the separation of liquid pig manure into frac-tions, the basic element of which is a brush auger. The separation process in the auger occurs in the filtration zones with the production of sediment and squeezing with the production of a solid fraction. The results of experi-mental studies to determine the moisture content of the sediment in various parts of the filtration zone arepresent-ed. It has been found that this indicator depends on the length of the filtration and dewatering zones, the angle of inclination of the screw to the horizon and the rotation fre-quency of the screw. The obtained results allowed deter-mining the length of the filtration and dewatering zones, the sum of which should not exceed 4 m, the angle of inclina-tion of the auger -up to 30° and the rotation frequency within 6.3-9.4 s-1. At the same time, the moisture content of the sediment at the exit from the dewatering zone is from 83.5% up to 78.8%