US1054839A - Apparatus for expressing the fluids out of paraffin compositions and separating the scale therefrom. - Google Patents

Description

J. HANSEN.

APPARATUS FOR EXPRESSING THE FLUIDS OUT OF PARAFFIN COMPOSITIONS AND 'SEPARATING THE SCALE THEREFROM.

APPLICATION FILED NOV.25, 1911. 7

1,054,839, Patented Mar. 4, 1913.

' 3 Q ka'ennms-snnm.

& \J N R g i :1 R k x B) gs Sara--3..-

%z. w M g J. HANSEN. APPARATUSVFOR EXPRESSING THE FLUIDS OUT OF PARAFFIN COMPOSITIONS AND SEPARATING THE SCALE THBREPROM.

APPLICATION FILED NOV. 25,1911.

Patented Mar. 4, 1913.

2 SHEETS-SHEET 2.

UNITED "STATES PATENT OFFICE.

JULIUS HANSEN, OF TEXAS CITY, TEXAS.

APPARATUS FOR EXPRESSING THE FLUIDS OUT OF PARAFFIN COMPOSITIONS AND SEPARATING THE SCALE THEBEFROM.

1,054,839. Specification of Letters Patent. Patented Mar, 4, 1913 Application filed November 25, 1911. Serial No. 682,312.

s. To all whom it may concern: in question relatively expensive because of Be it known that I, JULIUS HANSEN, a citizen of the United States, residing at Texas City, in the county of Galveston and State of Texas, have invented certain new and useful Improvements in Apparatus for Expressing the Fluids Out of Paraffin Compositions and Separating the Scale Therefrom, of which the following is a specification, reference-being had to the accompanying drawings.

This invention relates to apparatus for compressing and straining the scales or crystals ofparafiin, or of wax of a parafiin nature.

The object of this invention is to provide a machine of the class referred-to that will enable the operations of completely straining and removing the oil from paraflin distillate to be done in one machine.

Another object of this invention is to provide a machine for'the purpose in ques tion, that will perform in itself the functions of the filter press and scale press.

A further object of this invention is to provide a machine which may be used continuously for the purpose in question.

Other objects of this invention are to provide a machine of the class described which may be readily manufactured and installed at a comparatively low cost, which may be readily inspected and repaired, which will take up a relatively small amount of space, which will have a relatively high efficiency and which will be arranged so that the material within the machine may be tested without interfering in any Way'with the operation of the same.

Further objects of this invention will become apparent as it is more fully set forth.

Theapparatus embodying this invention consists in general of two parts arranged to respectively perform the functions of a filter press and a scale press. A filter press for paraffin consists of an apparatus for removing the loose oil in which the scales or crystals of wax float, and a scale press is used for the purpose of removing the entrained oil and water that is in the compressed scales or crystals after the same has een ejected from thefilter press.

The processes performed by the filter press and scale press are ordinarily done in separate machines, which are independent of one mother and which make the processes the necessary amount of labor required to properly take care of the separate machines. This invention avoids the inconvenience and cost of having so ,arate machines and apparatus for the li tering and scaling processes referred to, as it enables the entire work to be done in one machine which may be operated by a single source of power and so connected up and devised that it may be run continuously, and in addition permit samples of the material acted upon to be taken out and tested without interfering in any way with the proper operation.

The present application involves only the novel structural features of the apparatus by means of which the process above outlined is carried out, the process itself being more specifically described and claimed in my companion application, Serial Number 679,652, filed February 24, 1912.

An embodiment of this invention is shown in the appended drawings, in which,

Figure 1 represents a view in elevation of an apparatus embodying this invention. Fig. 2 is a plan view of Fig; 1. Fig. 3 is a sectional view taken along the line 33 of Fig. 1. Fig. 4 is a sectional view taken along the line 4-401 Fig. 3.

Similar reference characters refer to similar parts throughout the drawings.

In the construction shown in the drawings, l and 1 designatethe casings of the parts of'the device which perform functions of a filter press and scale press respectively. Each casing is preferably constructed as shown in the drawings, and both are very similar to one another. The casing 1 is however preferably provided with straining sheets 2 and 3 which are somewhat coarser thanfl and 3' in the casing 1 of the scale press part. The straining sheets 2 and 2' are preferably made of some suitable straining cloth, and are attached to metallic screens 3 and 3 which are preferably of cylindrical shape and surround the first mentioned straining sheets. A plurality of rings 4 and 4 secure saidstraining sheets to the shown in the drawings. Suitable pipes 5 and 5' surround the screens 3 and 3 and securely hold the latter in position by means of rings 6 and 6 which are held in place by means of bolts 7 and 7'. The casings 1 and l surround and c ntain the pipes screens as is clearly 5 and 5', and are provided with annular chambers 8 and 8' which permit the fluids strained from the material that passes through the parts in question, to flow therein, and by means of suitable connections to be removed therefrom. The casings are also provided with annular chambers 9 and 9 for the purpose which will be explained in a later part of the specification.

The casing 1 is provided with an end piece 10 that is provided with an inlet opening 11 therein, which is suitably connected so as to receive the distillate to be processed. In some convenient part of the end piece 10, a valve 12 is provided for testing purposes. At the other end of the casing 1 is another end member 13 that is provided with an outlet opening 14 therein, and atesting valve 15 for the purpose of sampling the material at that portion of the casing. The members 10 and 13 are preferably threaded on to the ends of the pipe 5 as is clearly shown in the drawings. The end members are also provided with holes and stufling boxes 16 and 17 respectively for the purpose of permitting the worm shaft 18 to project therethrough, so that the latter can be suitably coupled to a source of power, and journals 19' and 19 are provided for the purpose of supporting the same, and thrust bearings 20 are arranged for the purpose of keeping said worm shaft properly in position.

The casing 1 is provided with parts very similar to those used in connection with the casing 1, and are designated by similar characters with a prime added thereto, in order to facilitate the recognition of their connection with the apparatus. The shafts 18 and 18 are preferably connected to one another by means of a suitable coupling 21, or if desirable or necessary, this coupling can be replaced by suitable gearings. The outlet valve of easing 1 and the inlet valve of casing 1 are connected by means of suitable pipe connections 22, and suitable valves 23 and 24 are provided thereon, so as to control the flow of material therethrough and also to permit the repair or inspection of the various parts of the apparatus. Other valves 25 and 26 are provi ed upon the inlet connections of casing 1 and the outlet connections 27 respectively for similar purposes. The casings 1 and 1' are provided with suitable connections 28 and 29 for the purpose of attaching the same to apparatus which are used for causin the flow of suitable fluids through the 0 ambers 9 and 9 inthe casings 1 and 1- respectively.

The apparatus used in connection with casing 1 is preferably of a freezing or cooling nature and arranged so as to pass a cooling fluid throu of the same, in or er to bring the distillate in said casing to a suitable temperature.

h the annular recesses 9 The apparatus connected with casing 1' is for the purpose of heating the same so that the wax, scales or crystals may be suitably raised in temperature and thereby enable the oil and other fluids therein to be more easily removed. The holes for permitting the fluids to escape through the pipes 5 and 5 are designated by the reference characters 30 and 30, and those in the straining screens by 31 and 31. The last mentioned holes are preferably out of registry with one another so as to prevent the wax to be separated from the oil from being pushed through the pipes into the chambers 8 and 8 thereof. The

screens 3 and 3 are secured in such a manner to said pipes as to permit the oil and other fluids to flow between them to the holes 30 and 30 and thence to the chambers 8 and 8, so that they can be readily removed therefrom and in a state Practically free from wax, scale or crystals.

The general operation of the device is as follows:-The distillate is pumped into the casing 1, the outlet valve being closed, and the cooling fluid is run through the casing so that the distillate condenses into oil and scales. Pressure is then exerted so that the material in the casing will tend to flow through the perforations in the screen and through the holes'in the pipe 5. The oil will flow through the pipe and into the chamber 8, and thence to a suitable reservoir arranged to receive it. The scales, crystals or wax will be caught by the inner filter cloths 2 and accumulate in the casing until the latter is practically filled, the oil that leaves the same being passed to the reservoir just mentioned. When a certain amount of wax has accumulated in the casing, the valve on the outlet is opened and the wax is permitted 'to fiow to the second press 1', until it fills the same, at'the same time more distillate is pumped into the first mentioned casing and sufficient pressure is placed thereon to cause its oil to filter from the same in the manner already described. The worm shaft is then rotated so as to push the wax through theapparatus. The wax in the second casing is then subjected to a high temperature by means of hot water or steam being passed through the annular recesses in the casing 1. This rising temperature causes the wax to expand and to more freely give up its fluid on the compression. The oils and other fluids in the wax ass through the straining sheet, screen, an pipe as in the first casing, and thence is pumped into another reservoir provided for the purpose of receiving the same. The last mentioned process leaves the wax in a very dry condition and permits the same to be removed from the second casing for commercial purposes. The rotation of the worm shafts continuously pushes the wax through the apparatus and the pressure exerted on the masure may be exerted in any suitable and it ispreferable that in the first terials, by any suitable means enables the same to strain itself in a manner already described. After the apparatus is once set first casing, the process can be kept up con tinuously, provided that, the casing 1 is cooled to a proper temperature, tate the crystals therein sufliciently to permit the fluids in the'same to strain out, as the pressure that forces the material through the apparatus is exerted. The various testing valves on the front and rear portions of each of the casings enable the material within to be sampled at any time without interfering in any way with the operation of the machine.

While the shafts in both of the casings are preferably runat the same speed, it is of course understood that they can be mechanically made to run at various speeds so as to suit any conditions that may arise. The pressure exerted on the material within the casings may also be varied independently. of one another so as to produce the best results from the apparatus. This pres- I casing it should be from two hundred (200) to three hundred (300) pounds per square inch, and in the second casing, 1, from'five hundred (500) to six hundred (600) pounds per square inch, provided the ordinary materials are used. However, pressures and temperatures-to suit any special conditions can be readily provided for without departing from the scope of this invention, and various other details of constructions may i 40 be made in the apparatus to suit any particular conditions met with without depart:- ing from the principles thereof.

While it is not new to use processes for filtering and scaling independent of one another, it is new to use such processes in conjunction with one another and arranged so as to act continuously, and further to pro-- vide means for permitting the sampling or testing of material within theapparatus without stopping the machine or interfering in someradical way with its operation. A particular advantage is that the various parts are simple in their construction and are easily accessible for inspection and re-v pair and are so arranged that one operator can normally take care of the apparatus. Another feature is that the amount of power required to operate this apparatus is comparatively low, mainly due to the fact that the wax or crystals are not themselves forced through straining sheets, or otherwise made to overcome a very highfric-' tional resistance. The independence of the parts of this machine is another feature of value, as it enables units of various slzes of to precipithe parts of the machine to be installed with one another; for instance, a large filtering casing could be used with a relatively small scaling casing, provided with the gearing that operates the worm shaft is arrar. ed so as to make up in speed what is lacking in volume, and many other conditions can be provided for withoutradically changing the apparatus in any way. of importance, which the continuous arrangement of the two processes has, is that it keeps th Wax entirely free from atmospheric interference while the process is going on, and thereby prevents the wax and scales from absorbing moisture from the same, while the process is going on. This feature reduces the amount ofpower required to drive th materials in question and thereby increases the efliciency of the apparatus/ Having thus described this invention, what is claimed is 1. An apparatus for separating the wax and fluids from paraflin distillate comprising in combination a casing having an annular chamber therein and provided with a second inner annular chamber, a pipe disposed within said casing and provided with a plurality of holes therein opening into said chamber, a screen having a plurality of perforations therein-disposed loosely within said pipes, straining cloths disposed on said screen and means for securing said parts together, a worm shaft disposed insaid casing for forcing the solid matter into the same therethrough, another similar casing having parts similar to those in the last mentioned casing, and means for connecting said casings together in series, said means being arranged to permit samples of the material passing therethrough to be taken therefrom. i

2. An apparatus for separating the wax and fluids from parafiin distillate comprising in combination a casin having an an- Another feature nular chamber therein an ,provided with" a second inner annular chamber, a pipe disposed within said casin andprovided with a plurality of holes t erein opening into said chamber, a screen having a plurality of perforations therein disposed loosely within said pipes, the perforations in said screen being arranged out of registry with the holes in saidpipe, a straining cloth disposed on said screen and means for securing said parts together, a worm shaft disposed in said casing for forcing'the solid material in the same therethrough, a plurality of end pieces disposed on said pipes, said pieces being provided with st-ufling boxes therein to permit said shaft'to extend therethrough, and means for keepingsaid end pieces together.

3. An apparatus for separating the wax and fluids from parafiin distillate comprising'in combination, a casing having inner and outer annular chambers, a pipe concentrically arranged Within said casing and spaced from the Wall of the chamber, said pipe being provided with apertures, a perforated screen arranged upon the inner wall ofsaid pipe and having its perforations disposed out of register with the apertures of the pipe, a plurality of spaced annular members secured to said screen to retard the movement of the distillate through the pipe, and a Worm shaft disposed centrally Within said pipe to force the distillate longitudinally therethrough.

In testimony whereof I hereunto affix iny 15 signature in the presence of two Witnesses. JULIUS HANSEN. Witnesses:

BERNARD R. YOUNG, WILLIAM J. GRAHAM.

Images