Improvements in Evaporating Brine and other Solutions.
Year: 1888

page_text: Date of Application, 1st Dec., 1888
Complete Specification Left, 28th Aug., 1889-Accepted, 5th Oct., 1889
PROVISIONAL SPECIFICATION.
Improvements in Evaporating Brine and other Solutions.
I, Sir LOWTHIAN BELL, Baronet, F.R.S., of Rounton Grange, Northallerton,
in the County of York, do hereby declare the nature of this invention to be as
follows:
:-
This invention has for its object improvements in evaporating brine and other
solutions.
For this purpose I utilise the waste heat of slag derived from iron furnaces and
furnaces employed in other metallurgical operations.
The slag may be received (as is the practice at present) into iron vessels mounted
on wheels and capable of containing several tons. These vessels when charged I cause
to be passed down an incline into a chamber over which an evaporating pan of large
area is set.
When the slag blocks are in the chamber they are sprinkled with water to harden
the exterior. Steam is thereby generated and this steam coming into contact with
the bottom of the pan imparts its heat thereto, and so heats the brine or solution
which the pan contains. Or the steam thus generated may be passed through pipes
immersed in the solution. In the lower part of the chamber also there is water
which the blocks of slag, as they progress slowly down the incline, and when they
are sufficiently hardened, ultimately reach, and so the water in the chamber is kept
at a boiling heat.
When the blocks are cooled down to the temperature of the water the carriages
on which the vessels containing them are mounted, are passed on up another incline
and so out of the chamber.
The water thus heated in the chamber can be circulated in pipes or channels to
heat other pans, or the chamber itself may be of such dimensions that pans set directly
over it will be able to utilise most of the heat derived from the slag.
Or, in place of using water, a current of air may be caused to pass through the
chamber in the reverse direction to that in which the blocks travel through it, and
the air thus heated may be made to pass beneath the pans containing the brine or
solution to be evaporated, and so to convey the heat from the slag to the saline
solution.
Dated this 1st day of December 1888.
CARPMAEL & Co.,
Agents.
COMPLETE SPECIFICATION.
Improvements in Evaporating Brine and other Solutions.
I Sir LOWTHIAN BELL Baronet F.R.S. of Rounton Grange, Northallerton in the
County of York 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 :-
:-
•
This Invention has for its object improvements in evaporating brine and other
solutions.
For this purpose I utilise the waste heat of slag derived from iron furnaces and
furnaces employed in other metallurgical operations.
The slag may be received (as is the practice at present) into iron vessels mounted
on wheels and capable of containing several tons. These vessels when charged I
cause to be passed down an incline into a chamber over which an evaporating pan of
large area is set.

page_text: When the slag blocks are in the chamber they are sprinkled with water to harden
the exterior. Steam is thereby generated and this steam coming into contact with
the bottom of the pan imparts its heat thereto, and so beats the brine or solution
which the pan contains. Or the steam thus generated may be passed through pipes
immersed in the solution. In the lower part of the chamber also there is water which
the blocks of slag, as they progress slowly down the incline, and when they are
sufficiently hardened, ultimately reach, and so the water in the chamber is kept at a
boiling heat.
When the blocks are cooled down to the temperature of the water the carriages on
which the vessels containing them are mounted, are passed on up another incline and
so out of the chamber.
The water thus heated in the chamber can be circulated in pipes or channels to
heat other pans, or the chamber itself may be of such dimensions that pans set
directly over it will be able to utilise most of the heat derived from the slag.
Or, in place of using water, a current of air may be caused to pass through the
chamber in the reverse direction to that in which the blocks travel through it, and
the air thus heated. may be made to pass beneath the pans containing the brine or
solution to be evaporated, and so to convey the heat from the slag to the saline
solution, the air being led back again to the exit end.
In order that my said Invention may be more fully understood and readily carried
into effect I will proceed to describe the drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a longitudinal section of an apparatus constructed according to my
Invention.
Figure 2 shows an end elevation, and
Figure 3 shows two half-transverse sections on the lines A. A. B. B. (Figure 1).
A. A. are trucks filled with slag. B. B is the tunnel into which they are received.
C is a pan forming the roof of the tunnel. D and E are lock chambers, by which the
trucks are admitted into the tunnel whilst free access of the external air is prevented.
FF are nozzles for delivering jets of water on to the trucks. This water is usually
the condensed water from the bottom of the pan which falls on to the inclined roofs,
G G to the spouts. If the water of condensation is not sufficient a circulating pump,
not shown in the drawings, may be provided for raising the water from the bottom of
the tunnel. J is a chimney which is only used when air is employed for cooling the
trucks.
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 :-
1. Evaporating brine and other solutions by means of steam obtained by bringing
water into contact with hot slag.
'
2. Evaporating brine and other solutions by means of air heated by being brought
into contact with hot slag.
3. Apparatus for evaporating brine and other solutions consisting of a tunnel
covered by an evaporating pan and receiving trucks or vehicles loaded with hot
slag.
4. In apparatus such as is referred to in the preceding claim, inclining the floor of
the tunnel downwards towards the middle to form a receptacle for water for cooling
the trucks.
Dated this 26th day of August 1889.
LOWTHIAN BELL.