US1800667A - Apparatus eor eitecting - Google Patents

Description

April 14, 1931 R. w. sHAFoR 1,800,667

Y APPARATUS FOR EFFECTING REACTIONS BETWEEN SUCROSE AND QUICKLIME Filed April 5, 1927 2 Sheets-Sheet 2 KII l N VEN TOR.

Patented Apr. 14, 1931 PATEN'E OFFICE RALPH W. SHAFOR, OIE-DENVER, COLORADO Arrnmrus ronnrrncrrne REACTIONS BETWEEN socnofsnnnn QUIoxnIME Application led April 5, 1927. Serial No. 181,219.

My invention relates to apparatus for use in continuously effecting the chemical reaction between sucrose and quicklime by the method disclosed in my application for Patent No. 181,157led April 5, 1927.

The method is `included in the process of recovering sugar: from beet molasses, commonly'known inthe beet sugar industry as the Steffen process7 and its main object is to 10 advance and expedite at a reduced cost of 0peration the reactions resulting in the production of the tri-calcium saccharate by a continuous feed of material subject to a continuous discharge of theresulting compound. j j A The improved method consists mainly 1n separating the two reactions that take place by the intermixture of 'lime and sucrose, in

successive stages of operation, and other distinctive features of the process are that in each of said stages, the reaction is conducted in a series of successive steps and that the supply of the reagent to the material is'divided accordingly. It is an object of the present invention to provide apparatus of simple construction in whichthe process as outlined i hereinabove, may be conducted in 'an economical, eiiicient and expeditious 'mannen Another object resides in the provision of novel means for the distribution of the reagent over the several units of the apparatus, which divide the operation into successive steps, and

of "means to automatically proportion the quantities of molasses and water in the solution tobe treated in the process and the quantity of reagent added to the solution to produce the desired reactions.

Further objects of the invention will be disclosed in the course of the following description.

Referring to the accompanying drawings in which like characters of reference designate corresponding parts throughout the several views,

' Figure 1 represents a more or less diagrammatic plan view ofthe apparatus,

still another object is found in the provisions Figure 2, a longitudinal section of the apparatus taken on the line 2-2Figure 1,

Figure, a partially sectional and partially broken end-viewof one of the tanks of the series in which the process is performed,

Figure 4, a combined section and plan View of the tank in the planes indicated by the line 4 4 in Figure 3, and

Figure 5, a fragmentary section of the tank along the line 5-5 Figure 3.

Referring first to Figures 1 and 2 the molasses and water are mixed in a tank 5 in proportions determined by proper adjustment of the strokes of two pumps Gand 7 which are operated from a common shaft 8. One of the pumps connects with a supply of the molasses and the other with a source of water supply. The pumps are of denite displacement with an adjustable stroke and in operation, the relative lengths of the strokes are adjusted so as to deliver the proper proportions of molasses and water desired to produce a solution of predetermined strength.

It is evident that the proportioned quantities of the liquids fed to the mixing tank during a determinate period of time are readily changed by varying tlie speed of the shaft.

The process is conducted in a series of tanks preferably arranged in tandem fashion. The first reaction of the process takes place in the single tank 9 and the second reaction in two tanks 10 and 12 connected for the discharge of material from one to the other by an over-flow-apron 13.

Each of the tanks is divided into a number of compartments by transverse partitions 14 which terminate below the top of each tank for the overflow of solution from one compartment to another. It will be observed that the first tank of the series is thus divided into three units, one of which is wider than the others and that -the other tanks are each divided into six units of equal size.

Each compartment is divided by partitions 15 for the circulation of the solution in an upwardly and downwardly directed course by the action of rotary centrifugal pump-impellers 16 which are mounted in the lower portions of the compartments of each tank, 'ln connection with a` common shaft 17 one into another, a tapering feed apron extending over the compartments, and drag elements for moving a reagent lengthwise of the apron. p

2. In apparatus for producing a reaction between lime and sucrose in the manufacture of sugar, a reaction tank partitioned into successively arranged compartments flowing one into another, an appliance for feeding a reagent separately to the compartments, and an automatically Weighing element for feeding the reagent to said appliance.

3. Apparatus for producing a reaction of lime and sucrose in the manufacture., of sugar, comprising a mixing tank, a pump for feeding Water to the tank, a pump for feeding molasses to the tank, a shaft having driving connections with the pumps, a reaction tank, means for feeding solution from the mixing tank to the reaction tank, and an appliance for feeding a reagent to the reaction tank, driven from the shaft.

4. In apparatus for producing a reaction of lime and sucrose in the manufacture of sugar, a reaction tank divided into successively arranged compartments flowing one into another, means for feeding a sucrose solution into the tank at an end thereof, the compartment at the feed end of the tank being larger than the other compartments, and means for feeding a reagent to the compartments.

5. In apparatus for producing a reaction between lime and sucrose in the manufacture of sugar, a reaction tank partitioned into successively arranged compartments flowing one into another, means for feeding a reagent to the compartments, and an automatic Weighing element for feeding the reagent to said means.

In testimony whereof I have aiiixed my signature.

RALPH W. SHAFOR.

April 14, 1931. P, ASH/NER 1,800,668

ADJUSTABLE HIGH CHAIR Filed July 19, 1929

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