Improvements in or applicable to Brine Evaporating Pans.
Year: 1893

page_text: Date of Application, 3rd Feb., 1893
Complete Specification Left, 3rd Nov., 1893-Accepted, 8th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in or applicable to Brine Evaporating Pans.
I JOSEPH PARKS of Penny's Lane, Northwich, in the County of Chester,
Boiler Maker, do hereby declare the nature of this invention to be as follows:-
It has already been found advantageous in the manufacture of salt by the
evaporation of brine to avoid the direct action of the flame and heated gases on
the bottom of the pans by first heating a body of water and employing the steam
thus generated for the purpose of heating the pans which are arranged in tiers so
that the steam arising from the heated brine in one pan serves to heat the
upper pan.
My said invention relates to improvements in the construction of such steam
heated pans and has for its object the more effectual and economical utilisation of
the heat.
According to my said invention the water chamber at the bottom which is
subjected to the flames and heated gases from the fires or furnaces is provided on
its underside with hollow baffles containing water in communication with the water
in the water chamber itself.. These baffles are so arranged as to form a winding
flue through which the flames and heated gases are caused to pass. The bottom
and sides of such winding flue also form a water jacket the interior of which is in
communication with the water chamber. The heated gases are caused to return
under the said water jacket and by means of side flues are then led outside the
water jacket to the chimney. By this means a much greater heating surface is
exposed to the direct action of the heat than has hitherto been the case. The
steam thus generated in the water chamber heats the bottom of the lower
brine pan.
The steam which is disengaged from the brine in this pan is utilised in the following
manner.
Between the surface of the brine therein and the bottom of the upper brine
pan I interpose a diaphragm or screen having suitable apertures or orifices through
which the steam issues into the steam chamber thus formed between the diaphragm
and the upper pans. The steam therein serves to heat the upper brine pan. The
diaphragm itself slopes towards a channel or gutter proforably in the middle of
the diaphragm for the purpose of collecting and carrying off the water of con-
densation which is led back to the lower water chamber. The latter being thus
supplied with hot distilled water, fuel is economised and the formation of scale or
sediment is prevented.
In the said condensed water gutter I lay the pipes through which the brine is
fed to the brine pans for the purpose of heating the brine before it enters
the pans.
Means are provided for regulating the flow of the brine to the pans and of the
condensed water to the steam chamber.
To prevent the escape of the whole of the steam between the two brine pans
when withdrawing the salt from the lower brine pan I provide vertical partitions
between the lower and upper bring paus and thus divide the whole space into
compartments. By this means the salt may be removed from one compartment at
a time. The brine pans themselves are divided into sections by steam spaces so
that the steam may act on the ends of each section and thus a greater surface is
exposed to the action of the steam.

page_text: The sections of the pans communicate with each other below the brine level so
that the brine stands at the same level in all the sections of the pan.
Dated this 2nd day of February 1893.
EDWARD TURNER WHITELOW,
70, Deansgate, Manchester, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or applicable to Brine Evaporating Pans.
I JOSEPH PARKS of Penny's Lane, Northwich, in the County of Chester,
Boiler Maker, do hereby declare the nature of this invention and in what manner
the same is to be performed to be particularly described and ascertained in and
by the following statement :—
It has already been found advantageous in the manufacture of salt by the
evaporation of brine to avoid the direct action of the flame and heated gases on the
bottom of the pan by first heating a body of water and employing the steam thus
generated for the purpose of heating the pans which are arranged in tiers so that
the steam arising from the heated brine in one pan serves to heat the upper pan.
My said invention relates to improvements in the construction of such steam
heated pans and has for its object the more effectual and economical utilisation of
the heat.
In the accompanying drawings which illustrate my said invention
Figure 1 is a sectional sido elevation.
Figure 2 is a plan partly in section.
.
Figure 3 is an elevation of which the right hand half is a section through 2-3
while the left hand half is a section through y-y of Figure 1.
According to my said invention the water chamber a which is heated by the
flames and heated gases from the fires or furnaces 6 is provided on its under side
with hollow baffles c whose interiors are in communication with the water chamber a.
These baffles project from each side as shown in Figure 2 so as to form a winding
flue through which the flames and heated gases are caused to pass. The bottom c
and sides of the said winding flue are formed as a water jacket the interior of
which is in communication with the water chamber a. The heated gases having
passed along the winding flue descend and return along the flues dd' to the flues d
through which they pass to the side flues d' on their way to the chimney and thus
a much greater surface is exposed to the action of the heat than has hitherto been
the case.
The steam generated in the water chamber a heats the lower brine pan b. The
steam disengaged from the brine in the lower brine pane is utilised in the following
manner.
Between the surface of the brine in the lower pane and the bottom of the upper
brine panI interpose a diaphragm or screen 9 having suitable apertures or
orifices g' through which the steam issues into the steam chamber & left between the
diaphragm g and the upper brine pan f. The steam in the chamber h serves to
heat the upper brine.pan f. The diaphragm g slopes towards a channel or gutter g
preferably in the middle of the diaphragm for the purpose of collecting and
carrying off the water of condensation which is led back to the water chamber a
through suitably arranged pipes or channels. The water chamber a is thus supplied
with hot distilled water whoreby fuel is economised and the formation of scale or
sediment in the water chamber is prevented or minimised. In the gutter 1 lay
the pipes through which the brine is fed (and from which it passes through
suitably arranged distributing pipes to the brine pana) for the purpose of heating
the brine before it enters the pans.
Suitable means such as valves or taps are used for regulating the flow of the brine

page_text: to the brine pans and of the condensed water to the water chamber a as will be well
understood without further explanation.
To prevent the escape of the whole of the steam from the brine pans when with-
drawing the salt I provide vertical transverse partitions which divide the steam
space above the pans into compartments to gain access to each of which side doors
are provided. By this means salt may be removed from one compartment at a
time without cooling the others. The brine pans themselves are divided into
sections by the steam spaces so that the steam may act on the ends of each section
and by this means a greater heating surface be obtained. The sections of the pans
of each tier are placed in communication with each other below the brine level by
means of pipes or other suitable means so that the brine in all the sectional pans of
a tier is at the same level.
G
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is :-
I. The hereinbefore described construction and arrangement of steam heated
brine evaporating pans substantially as and for the purpose set forth and shown in
the accompanying drawings.
11. In a brine evaporating apparatus the combination with a water vessel or
boiler for heating the lower pan of baffles e containing water in communication
with the said water vessel and so disposed as to form a winding flue under the
water vessel substantially as and for the purpose hereinbefore set forth and shown
in the accompanying drawings.
111. In a brine evaporating apparatus consisting of brine pans arranged in tiers
the pierced diaphragm between two tiers of pans so arranged as to receive
and collect the condensed water substantially as and for the purpose hereinbefore
set forth and shown in the accompanying drawings.
IV. In a brine evaporating apparatus the use of pans divided into sections
with a steam space between the ends of each section substantially as set forth.
V. In a brine evaporating apparatus having superposed brine pans partitions such
as for dividing the steam space into separate compartments substantially as and
for the purpose hereinbefore set forth.
Dated this is of N----- 19ng
-
EDWARD TURNER WHITELOW,
70, Deansgate, Manchester, Agent for the Applicant.