scholarly journals Effects of pellet characteristics and feed zone design on the output of grooved-feed extruders at high screw speeds

2019 ◽  
Author(s):  
O. Kast ◽  
M. Koch ◽  
C. Bonten
Keyword(s):  
Feed Zone

scholarly journals TECHNOLOGICAL SOLUTION OF A MEAT FARM WITH EQUAL VEAL SUPPLY DURING A YEAR

2021 ◽  
pp. 129-137
Author(s):  
B. O. Inerbaev ◽  
A. S. Durov ◽  
I. A. Hramcova ◽  
N. V. Chajko ◽  
N. A. Yаkovenko
Keyword(s):  
Live Weight ◽  
Electric Heating ◽  
Master Plan ◽  
Technological Solution ◽  
Daily Growth ◽  
Industrial Buildings ◽  
Regular Production ◽  
Feed Zone ◽  
Disinfectant Solution ◽  
Feed Mill

The technological solution of a meat farm for 1000 cows of a broodstock with a three-round hotel of cows is presented. The first round is planned in january – march, the second round – in may – july and the third-from september to november. The goal of the development is to ensure regular production of beef during the year, obtained from the slaughter of 6–7-month-old steers and 8–9-month-old chicks, grown on suckling under mother cows to a live weight of 170–216 kg. The average daily growth of bulls – 800, heifers-700 g. the daily supply of meat will reach 62.4 c, an average of 2 c per day. The average level of profitability is 30.6%. New design and planning solutions for industrial buildings are proposed. The parameters of the feed zone of the farm and the need for in-farm equipment were determined. When developing the master plan of the farm, the following main zones were identified: production purposes, storage and preparation of feed, auxiliary production. For the use of loose keeping of animals, the structural scheme of buildings was chosen without internal supports. Keeping cows with calves in winter is loose on a deep non-replaceable litter. Unlike young animals, the delivery of adult animals for meat takes place in September – October. For the mechanization of production processes, there are two mixers, a mini-feed mill, auto-watering machines, ball drinkers with electric heating, a water dispenser, a straw roll shredder, and a machine for treating animals with a disinfectant solution.

Selected Properties of Composites with Polypropylene after Ageing

2014 ◽  
Vol 635 ◽  
pp. 212-215 ◽  
Author(s):  
Aneta Krzyzak ◽  
Magdalena Łagožna ◽  
Andżelika Nogaj ◽  
Ľudmila Dulebova
Keyword(s):  
Raman Spectroscopy ◽  
Physical Properties ◽  
Mass Fraction ◽  
Extrusion Process ◽  
Thermoplastic Composites ◽  
Short Glass Fiber ◽  
Feed Zone ◽  
The Matrix ◽  
Short Glass ◽  
Properties Of Composites

Changes in selected physical properties of thermoplastic composites during and after exposure materials to ultraviolet radiation and freeze were investigated. The matrix of composite was homopolymer polypropylene. The fillers were talcum, chalk, short glass fiber in mass fraction 10 to 50% and montmorillonite by fraction only 4%. The composites were mixed in plasticizing system of extruder. The length of plasticizing system and number of grooves in feed zone was changed. The samples were exposed for two months to UV and -20°C. The short ageing influenced on hardness, microhardness and Raman spectroscopy of composites. The SEM showed how extrusion process affected the homogeneity of composites structure.

The extrusion of plasticized poly(vinyl chloride) in an extruder with a modified feed zone. Part 1: extrusion process

2015 ◽  
Vol 35 (2) ◽  
pp. 191-198 ◽  
Author(s):  
Janusz W. Sikora ◽  
Bronisław Samujło ◽  
Andrzej Stasiek
Keyword(s):  
Vinyl Chloride ◽  
Experimental Studies ◽  
Extrusion Process ◽  
Screw Extruder ◽  
Pocket Depth ◽  
Single Screw Extruder ◽  
Poly Vinyl Chloride ◽  
Feed Zone ◽  
Process Energy ◽  
Opening Width

Abstract The work presents the results of experimental studies of plasticized poly(vinyl chloride) (PVC) extruded by a single-screw extruder with a modified feed section. The variable factors were the feed opening width, the feed pocket depth in the extruder barrel, and the rotational speed of the screw. The following parameters were studied: extrudate temperature Tw (°C), screw torque M (Nm), polymer mass flow rate G (kg/h), unit consumption of energy supplied to the extruder Ejc (J/g), and extrusion process energy efficiency κ (%). It was found that the increase in the depth of the pocket and the decrease in the width of the feed opening influence the extrusion process in a positive way.

Feed Zone

2011 ◽  
pp. 298-298
Author(s):  
Jan W. Gooch
Keyword(s):  
Feed Zone

Optimum screw pitch in the feed zone of extruders

Polimery ◽  
1987 ◽  
Vol 32 (05) ◽  
pp. 199-201
Author(s):  
JAROSLAW DIAKUN
Keyword(s):  
Feed Zone ◽  
Screw Pitch
Sign in / Sign up

Export Citation Format

Share Document