SCIENTIFIC ABSTRACT SADCHIKOV, A.V. - SADEKOVA, G.S.
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CIA-RDP86-00513R001446620014-3
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S
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100
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Publication Date:
December 31, 1967
Content Type:
SCIENTIFIC ABSTRACT
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SADCHIKOVY Boris Ivanovich,, agronor.; MIKENEVICH, A., red.; TSYURKO, M.I.,,
,-, : ~ ; ~ ; ~ ~ - ' : ,
.., - TOPIC ZAG.'
c,- , ,I:.~! ~.- .--FA:,--- - -U ,.
SOV/143-59-2-14/19
AOTHORS: -Technical Sci
Lebedev, P.D., Professor, Doctor of
ences; Verba, M.I., Docent, Candidate of Technical
Sciences; Leonchik, B.I.; Portnov, V.D. and Sadchi-
------------------- 1,
kov, O.V., Engineers
TITLE: The Drying of Heated, Inorganic Solutions by Means
of Spraying (5ushka raspyleniyem podogretykh neor-
ganicheskikh rastvorov)
PERIODICAL: Izvestiya vysshikh uchebnykh zavedeniy -.Energetika,
1959, Nr 2, pp 111-116 (USSR)
ABSTRACT: When drying heat-resistant, inorganic solutions by
spraying them into a stream.of hot flue gases, the
heat and mas's ex9hange,processes may be consider-
ably intensified by heating the solution to a temper
ature somewhat below its boiling point prior to
'
pressure in the
spraying, maintaining an adequate
tD
pipeline. A more intensive dehydration is observed
with a sudden reduction of the pressure of the heat-
ed liquid when the latter leaves the sprayer. The
Card 1/5 dehydration process is achieved, by the heat of
SOV/143-59-2-14/19
The Drying of Heated, Inorganic Solutions by Means of Spraying
the, drying agent (flue gas), and by thEL in t e Ir i or
heat of the atomized particles. The preliminary.
heating of the solution causes agreduction of the
ty and,surface tension, and consequently,
viscosi
it changes the character of the interme(liAte-phase
surfaces and with them the spray di;BpeAion. eThere-
by the basic laws are disturbed which are valid.for
the dispersion.of a cold liquid flow. For-investigat-.
ing the basic thermal and hydrody~iamiic- peculiari 'ties,
of this drying processt an experimen-tall.semi-indus-
trial drying chamber was built at the Kafedra'su-
shil I nykh i teploobmennykh ustroystv MEI
of Drying and Heat-gxchange Equipment of MEI). The
drying chamber was built in such a way that one
parameter of the process could be changed while all
the others were kept constant. Provisions were
made to perform the drying in a direct flow and in
a counterflow of flue gao, or to feed the drying
gases from the sides of the chamber. Figure 1 shows
Card 2/5 a diagram of the drying: unit. The basic series of
SOV/1 43-59-2-1-'V/19
TheDrying of Heated, Inorganic Solutions by Means of Spraying
-tests was conducted with centrifugal sprayers. A
total.of 60 experiments was made for which a 50%
salt.solution was used as experimental liquid. The
liquid consumption was changed from.70-260 kg/h,
the 0temperature of the liquid was varied from 75-
300 0, the pressure of the liquid from 50-150 atm.
The-tem 8erature of the flue gases was varied from
190 550 C. Kerosene was used as a fuel for heating
the drying chamber. Since preliminary heating of
the liquid causes a faster crystallization of the
dispersed particles, the interaction of the flue
gas components with the product is less intensive
than when using a'cold liquid. The increase of the
sulfur content of the dried material did not exceed
the maximum permissible valup of 0.06% so The
processing of the experimental data and tG'ir ana-
lysis showed that the most favorable drying condi- 0
tions were obtained at a liquid temperature of.280 C,
and at an initial gas temperature of 460 C. The
Card 3/5 irrigation factor was 0.1 kg of the solution per k-
SOV/143-59-2-14/19
.,The Drying of Heated, Inorganic Solutions by Means of Spraying
Um "i
of dry gas. The specific,fuel cons pt onfor 1 kg
of the product was 200-250 g/kq - product. The mass
exchange factor was.12-20 kg/m--) hour. When spray
drying cold liquids the mass exchange factor at the
same temperature of flue gases amounted to 8-12 kg/
m hour. The effectiveness of interphas,e surface
which means the dispersion of atomized particles.
So far, peculiarities of flowing out and disinte-
grating of a heated liquid stream were not consider-
ed in the works of Soviet and foreign scientists.
The authors established some characteristical hy-
drodynamic phenomena of this process and some cal--
culated suggestions for the design of sprayers will
be subject of future investigations. The authors
mention only the four types of sprayers used dur-
ing their experiments: a centrifugal sprayer with
one tangential inlet a centrifugal sprayer with
two tangential inlets, a centrifugal sprayer witly"a
Card 4/5 special conical atomizer gnd a conical nozzle. The
SOV/1143-59-2-14/19
The Drying of Heated, Inorganic Solutions by Means of Spraying
experiments with the centrifugal sprayers, showed
that their output was redUceg by 30-400 when
the
.
liquid was heated to 260-290.C, in comparison with
the cold liquid, The authors came to the conclusion
that the preliminary heating increases the drying
efficiency of heat-rqsistant inorganic liquids.
The preliminary heating of the liquid prior to
spraying permits the use of flue gases of fuels,
with a low sulfur content as a drying agent. There
are 2 tables, 1 diagram, 1 graph, and 2 Soviet re-
ferences.
ASSOCIATION: Moskovskiy ordena Lenina energeticheskiy institut
(Moscow Lenin Order-Power Engineering Institute)
PRESENTED: Kafedra sushi,llnykh i teploobmennykh ustanovok
(Chair of Drying and Heat Exchange Equipment)
SUB14ITTED: November 26, 1958
Card 5/5
S/139/6o/ooo/oo6/oll/032
9191/E481
AUTHOR. Sadc-hikov,
TITLE-. The St.res-~,ed and Deformed State in the Cutting of
Die t al
PERIODICAL: I7,11.7estiya lrysshikh uchebnykh zavedeniy, Fizika,
1960, NG~6, PP-79-88
TEXT. The stressed and deformed~state in the cutting of ductile
mptals is investigated. The process is assumed isothermal and
steady, The deformation is of the plane type. The metal is
isotropic, has both elasti-,:; and plastic behaviour and is subject
to strain hardening, The boundaries of the plastic region are
assumed straight and parallel to each other. The isothermal
assumption is justified by the high speed of ~-uttlng. The
elastic deformations can be neglec.ted. The parallel shape of.
~he plastic region is confirmed by.observation when the region
'Inuilediately adjacent to the cutting edge is ignored'. The strain
hardening is des~::ribed by a power- funcLion which relatesthe
shear stresses to the increments of shear deformation. The back
ra-ke angle of the cutting tool, the depth of cut, the cutting
speed and the mean normal stress a~ the quitting edge are given.
"Card 1/3
S/139/60/000/006/011/032
E191/E481
The Stressed and Deformed State in the.Cutting of Metal
The constants 4n the strain hardening,function are determine&
from experimental data~ The angle between the 11ne of cutting
motion and the boundary of plastic deformation is derived from
the measured chip contraction. The velocity of displacement of
pa%r,~Lzles parallel to the other boundary of the plastic region is
derived by a formula quoted from M.I.Klushin (Ref.l)-. The
problem consists in finding relations between the stress and
;~itrain components and the given magnitudes. ~The equations of
motion are formulated followinz Le--ri and Mizes, (Ref-3). After
some transformations, it is found possible to perform an
integration of the equations and to obtain at first the relation
betiveen the components of slip deformation and.the'rate of
displacement, It is shown that a term in the.expression for
the shear stress which is due to inertia effects 4-an be neglected
in all, practical condations up to a cutting speed of 500 m/min.
Eq. (1.21) summarize the solutions obtained. . The stressed state
at the point of the plaeiif; regic.ri dep6nds on a zomponent of
,shear stress which is a lin"-ar function of the coordinate at
card 2/3
S/139/6o/000/006/011/032
F,191/E481
The Stressed and Deformed State in the Cutting of Metal
r-i-ght angles to the boundary of plastic deformation. The mean
normal pressure, which is a.linear functionof the. coordinate
parallel to the plastic region'boundary, is superimposed on the
abave shear stress component. The expression for the specific
plastic work is found, It is shown.that, under the assumptions
made~ the nature of the deformed state is not that of,simple
slipj as usually assumed, but,a slip flow parallel to.the plasti.:---
region boundary, at,a rate whi-ch depends on the strain hardening
function. The deformed state is examined and related to the
texture of the chip. There are I figure and 5 Soviet references.
ASSOCIATION; Tomskiy gosuniversitet imeni V.V.Kuybysheva
(Tomsk State University imeni V.V.Kuybyshev)
SUBMITTED. December 11, 1959
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A005PLIO5
Tr!nnslrrztion from; R.ferativn 3 12,11201,
yy zhurnpl, Mlimiya, 1961, No. 21 11 W15i 5-
AT)THrPS: -'herno-zhukov ~4. I. Lukashevich, P. I.. Biktqilov,, A. S
P uspnina,
0. G.,I Knzakova, L. P., Sndchikova, M. F., Shchepi-ova, K. A., Markova,
L. MI., Kirivi, V.V., NzImina, N. A., Ltlazov, G.
TTTLE: The Solubility o(' Oil Hydrocarbo s in Organic Solvents nnr4 lefays,of
n
the Oil Production Imnrovement
PT-R T il T,, IC t L -Tr. Mosk. in-t neft~-khim. i gqz. prom.-sti, 1959, T10. A, !IP - 3 11 -3)
V
V
F';_T: The authorF rec=end. ways of imnrovement, o the '~ubricpntproduction.:
ulldrocar~,ons of higher molecular weight, and higher freezing po-.nt are in the first
nlace sew3rated at the fr-:ictional cr~,rstallizat.ion of oil hydrccarbons from th6-'.
solution in acetone. The solubility of the naphth-ene ~m-d,paraffin fractions of
oils as wpll as the so.Lubiiity of a Dart of' the aromatic hydrocarbons andresins
result from the effect of the dispersion forces,,nd the solubility of the.
remnininp Dirt of aronitic hydrocarbons mr] resins is connected with the Pction.
of nolar forces. The increase of the disFolvinF rower.of the solve Int is a
consecuence of th---~ increase of both its dipole moment P.nd the non-po.Lar portion
rprd 1/-4
S108 I /b 1/C00/0 0 2 /01,6/u 2 3
.-V
6olutlility of 01 W, drocprbons in Organic Solv-nts ind, Ways. of the 01
Vrodu(7tion Iriprov;arpnt
wf its m-o-uicuie. In bot'n cases, the incre,-se o,' the dissolving po~-,rar of the
:,c-o-,rwn*1,-7)r1 with of i4~z~
nre considered:
ih-2 mcch,.!nisu) of the of q netroleum conc;F-nixrt;~ I)-:, propann; the
upn*it~y of' N-furole on thc rourse of refininf-, of
Rffects of' te-,mneriture Pnd q
tile 01-1 distillate of th-i T1iv-rnn--7,y petroleurm; the nroperties o--:' phenol nnd fur-
An increase -in~ the -unntity of furfurole ir, the refininf., m2k,::s up the
insuft in its diFT)-~rsion propertigs; hereat, the riupnti-t,-,r of Promatic.,
hyriroenrbons beJ-ng to be eliminn-ted sharply. increnses, :,q s a result of w-dich the
ed nroduct incren, es more, than iv t increased
uiscosity roefficient of the refin S
r~ifininr t-7ricrature. Ry the use of phenol, the output of refi-ned T-)roducts is
lov,:~r ~hnr. t.*or +1-p refining by furfurole -.Ln conseiuence of' t,he higher dissolvi
n9
power- of The Id-Fh c4issoivin,7 T~otrer o' phenol lends to super-refining
oC oi.LF; i-n r!onse~,uenve oTwllicl~ Vhr~ir resistnnce to oxidation decreases. Py the
Pddition of vi-t---~r to nhenoi, its dissolvinc. nower derreases. and O"s selection
oronartles nnd the output, of. r-finpe products incrppsf--, viberpat its Vi czr-osi
(inefficient inconsider6biy deicrec!ses. The treatMent of. F tr,-!nsformer oil d4st;i-
S/OP,1/(--1/(J00/002/01'- /02 3
AU05/-A105
'Phe bolubility o~f Oil, Hyrirocarbons in Urpanic Soivents and li-'Tays,or the Oil
Production Imrovemnt
1,-..te from sulfurous p-wvffin-bise pc-trole"im by pheno-L contgininp !u%! w-,7ter.I-,ma'keS,-,
-in oi.L~ r sistant to oxidation. nnO havi g, high susceptibility
it oossibl;~ to obtain ~ t" in
to izitioxid-int admi:cturesl. TlhF~ two-staFe denaraffination o" wide oil friction's
M~'k-~S it- nossiblq to 4ncr-,~~e the output of
oils. tn increasp of the output ofe
dentirpf"i-nized rAIF nnd. the fi-Itr n rate iF -Iso attaincd bY th,:~ addition L,
nAmiy7turre5, in -irtirul~~r, of the depressant/q~/WPY(AzNII) and o-,