Energy efficiency is the most important indicator of the quality of food grinders

Abstract

A brief analysis of the methods of grinding technological raw materials from the standpoint of energy efficiency has been performed. Studies show that cutting (grinding) the feedstock into pieces of a certain size is the most energy-intensive. Existing designs of cutting elements of grinding mechanisms (cutting blade, cutting edge) are not optimal from the standpoint of energy efficiency. For example, the cutting blade in the working hole has a taper angle of 90°, and the taper angle of the cutting blade on the blades of the movable knife is also in the range of 80–90°. It is proposed to make the sharpening angles of the cutting blades on the blades of a movable knife equal to 5–8°. In addition, the blades of such a knife should have the shape of a classic wedge in all cross sections. Reducing the angle of sharpening of the cutting blade in the working hole of the grill to such values does not succeed in terms of design features (in particular, without violating transparency indicators). The reserves of reducing the angle of sharpening of the cutting blade in the working hole are shown (this angle can be less than 90°). The performed studies indicate that the smaller the energy costs for grinding the feedstock, the less it is rubbed and squeezed out of the holes of the grate. It can be assumed that the organoleptic properties did not deteriorate after grinding (but remained). The lower the transparency of the lattice, the grinding process is more energy-consuming. The smaller the sharpening angles of the cutting blades of the knives, the more energy-efficient the grinding process. The worse the quality of the crushed raw materials, for example, meat, which is characterized by the excessive presence of connective and cartilage tissues, films, etc., the more energy-efficient is the grinding process with knives with cutting blades with minimal sharpening angles.

Cost Management to Realize the Innovative Potential of Food Production and Ensure Economic Security

“…Milk production is 3 % of the total Russian and 15.7 % in the Central Federal District. Experts think that the low level of resource conservation in the country is the external threat to the enterprise [7].…”

Bases of the method of physical modeling of the process of crushing of municipal solid waste

“…Combining all parameters into one analytical dependence is a challenging task. Methods for physical modelling of the working processes of the contact of the active bodies of road-building machines with non-homogeneous and anisotropic media, such as municipal solid waste, were studied in [13,14,15,16,17,18]. All three hypotheses and the generalized V.I.…”

“…In the same way, we obtain the remaining similarity criteria. Finally, we obtain the following system of criteria: (17) The experiments were conducted under conditions of approximate physical modeling when the properties of the medium are not changed, when such parameters as the cohesion force between the components of waste, the angles of external and internal friction between the components of waste, and the shear forces of elastic and plastic zones of the crushing process are the same. Under these conditions, the criterion dependencies obtained by analyzing the dimensions are particularly interesting.…”

Substantiation of the main parameters of a hammer crusher for grinding municipal solid waste

“…Based on the analysis of technical and operational indicators of various designs of crushers, the design of a jaw crusher was chosen, which proved to be multifunctional and reliable [14]. In addition, such scientists as N. Huaxun Ma, Lei Sun [15], B. Kosimbetov, S.Komilov [16] , Sh.S.Tursunov [17], F.B.Teshome [18].…”