Influence of rotary grain crusher parameters on quality of finished product

Savinyh, Peter; Shirobokov, V. I.; Fedorov, Oleg; Ivanovs, Semjons

doi:10.22616/erdev2018.17.n158

Cited by 2 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The studies performed at OAO Put Ilicha farm, Udmurtia, revealed deterioration of quality of crushed grain as a function of screen wear of DKR-5M crusher [5]. Herewith, the screen holes are elongated due to intensive abrasive wear, mainly in the middle portion, and the surface area of holes increases (Fig.…”

Section: Resultsmentioning

confidence: 95%

“…Grain for farm livestock is crushed mainly by closed-circuit units with suction of initial material and discharging of final product. In comparison with open-circuit crushers, these units are characterized by lower compliance with the requirements of standards and zootechnology in terms of quality indicators [1][2][3][4][5]. Screen installed in crushing chamber (Fig.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Quality and Energy Indicators of Grain Crusher as a Function of Screen Wear

Shirobokov¹

2020

IJETER

Self Cite

View full text Add to dashboard Cite

Closed-circuit crushers are the most common units upon grain crushing for farm livestock. Each kind of animals requires for specific size of crushed grains. The simplest approach to adjust grain fineness modulus is application of separating screens. In closed-circuit crushers separating screen is located in crushing chamber, which results mainly in intensive wear of screen as well as leads to higher wear of crushing hammers. Modification of separating screen geometry during operation deteriorates the quality of crushed grain and increases energy consumption. Operation lifetime of screen can be improved by thermal strengthening of separating hole edges.The studies performed at the premises of OAO Put Ilicha, Udmurtia, revealed deterioration of quality of crushed grain and decreased energy indicators depending on crusher yield. Operation results of screen with strengthened hole edges have been compared with those of screen with nonstrengthened hole edges. It has been demonstrated that the effective surface area of screen increases more intensively with nonstrengthened hole edges; with the increase in the yield, the quality indicators of crusher deteriorate nonlinearly, idle capacity decreases, and useful capacity consumption increases.

show abstract

Section: Resultsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Quality and Energy Indicators of Grain Crusher as a Function of Screen Wear

Shirobokov¹

2020

IJETER

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the world, at least 95 % of all feed grains are crushed by various hammer crushers, which differ in their technological, kinematic, and structural parameters [11][12][13]. Hammer crushers have a significant drawback -the high specific energy consumption.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Studying the operational efficiency of the centrifugal-impact feed grain crusher of the new design

Volkhonov¹,

Abalikhin²,

Крупин³

et al. 2020

EEJET

View full text Add to dashboard Cite

Crushing feed grain involves hammer crushers, which are characterized by high specific energy consumption and its uneven fractional composition. It is possible to obtain high-quality shredded grain with less energy when using a centrifugal-impact crusher of the new design with a hole in the loading neck to supply the chopping chamber with additional air at a rate of up to 4.8 m/s. An additional hole provides a 1.8...13-time increase in the airspeed through the unloading neck when the rotor's rotation frequency changes from 3,750 to 2,250 min-1 , thereby enabling the timely evacuation of the shredded material from the crusher. The regression equations have been derived to determine the structural and regime parameters of the shredder, which ensure the maximal performance and minimal unit energy costs. The greatest impact on crusher productivity is exerted by the diameter of the sieve holes and the area of the bunker's unloading window. The greatest effect on the specific energy intensity of the grinding process is exerted by the diameter of the sieve holes. The maximal performance of the crusher, 1,440 kg/h, and the minimal energy capacity, taking into consideration the achieved grinding degree, of 2.1 W•s/(kg•grinding degree unit), are observed when using a sieve with the holes' diameter of 7 mm, the rotor's rotation frequency of 3,500 min-1 , and the maximally open unloading window of the bunker, at F = 1.458 m 2 •10-3. The specific energy consumption for chopping barley is less by 1.22...1.89 times than that of the hammer crushers RVO 35, DB-5, KD-2A. The dust-like fraction is less than 5.74 %, which is half the amount of the hammer crusher DM-6. The rational crusher operation modes have been determined in order to prepare feed grain for feeding farm animals of different species and ages

show abstract

Influence of rotary grain crusher parameters on quality of finished product

Cited by 2 publications

References 1 publication

Quality and Energy Indicators of Grain Crusher as a Function of Screen Wear

Quality and Energy Indicators of Grain Crusher as a Function of Screen Wear

Studying the operational efficiency of the centrifugal-impact feed grain crusher of the new design

Contact Info

Product

Resources

About