DE555805C - Process for evaporation of liquids - Google Patents

Process for evaporation of liquids

Info

Publication number
DE555805C
DE555805C DE1930555805D DE555805DD DE555805C DE 555805 C DE555805 C DE 555805C DE 1930555805 D DE1930555805 D DE 1930555805D DE 555805D D DE555805D D DE 555805DD DE 555805 C DE555805 C DE 555805C
Authority
DE
Germany
Prior art keywords
heating
opening
evaporator
evaporation
liquids
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE1930555805D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chemische Fabrik Budenhiem KG
Original Assignee
Chemische Fabrik Budenhiem KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chemische Fabrik Budenhiem KG filed Critical Chemische Fabrik Budenhiem KG
Application granted granted Critical
Publication of DE555805C publication Critical patent/DE555805C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/2343—Concentration concomitant with purification, e.g. elimination of fluorine
    • C01B25/2346—Concentration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/14—Evaporating with heated gases or vapours or liquids in contact with the liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • B01D1/222—In rotating vessels; vessels with movable parts
    • B01D1/228—In rotating vessels; vessels with movable parts horizontally placed cylindrical container or drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/08—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in rotating vessels; Atomisation on rotating discs

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Description

Die Erfindung betrifft eine weitere Ausbildung des durch das Patent 553 814 geschützten Verfahrens zum Eindampfen von Flüssigkeiten, insbesondere schlammabsetzenden Flüssigkeiten, wie Rohphosphorsäure, und besteht darin, daß ein mit direkter Innenbeheizung ausgerüsteter konischer Rohrverdampfer verwendet wird, in den die Heizflammen oder Heizgase an dem Ende des Drehrohres eintreten, das den größeren Durchmesser besitzt. Dadurch wird der Vorteil erzielt, daß im Verdampfer dem Temperaturabfall der Heizflammen oder Heizgase entsprechend angepaßte, allmählich schwächer werdende Flüssigkeitsschichten vorhanden sind, wodurch nicht nur das Material des konischen Drehrohres gegen Zerstörung durch übermäßige Erhitzung geschützt, sondern auch ein besonders guter Verdämpfungseffekt erzielt wird. Der Verdampfer besteht aus einem in üblicher Weise angetriebenen Drehrohr α von konischer Form. Beide Enden dieses Drehrohres sind durch Platten b bzw. c verschlossen, in denen zentrale Öffnungen d bzw. e vorgesehen sind. Dabei ist der Durchmesser der Öffnung e etwas geringer als der Durchmesser der Öffnung d. Vor der Öffnung d ist ein Brenner /, beispielsweise ein Kohlenstaubbrenner, angeordnet, aus dem in das Innere der Trommel gerichtete Heizflammen g austreten. Die Heizflammen bzw.The invention relates to a further embodiment of the process for evaporating liquids, in particular sludge-settling liquids such as raw phosphoric acid, protected by patent 553 814, and consists in using a conical tube evaporator equipped with direct internal heating, in which the heating flames or heating gases at the end enter the rotary tube, which has the larger diameter. This has the advantage that in the evaporator, the temperature drop of the heating flames or heating gases correspondingly adapted, gradually weakening liquid layers are present, whereby not only the material of the conical rotary tube is protected against destruction by excessive heating, but also a particularly good damping effect is achieved. The evaporator consists of a conventionally driven rotary tube α of conical shape. Both ends of this rotary tube are closed by plates b and c , in which central openings d and e are provided. The diameter of the opening e is slightly smaller than the diameter of the opening d. In front of the opening d there is a burner /, for example a pulverized coal burner, from which heating flames g directed into the interior of the drum emerge. The heating flames resp.

*) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor:

Dipl.-Ing. Erich Küchler in Budenheim.Dipl.-Ing. Erich Küchler in Budenheim.

Heizgase durchströmen den Verdampfer in der Richtung des Pfeiles und treten durch die Öffnung e aus in einen Kondensator h mit Abzugsstutzen i. Die zu konzentrierende Flüssigkeit bzw. die Rohphosphorsäure wird durch eine Leitung k durch die Öffnung e dem Verdampfer zugeführt; das Konzentrat verläßt den" Verdampfer durch die Öffnung d und gelangt in einen Vorratsbehälter I. Wie aus der Zeichnung hervorgeht, wächst die Stärke der Flüssigkeitsschicht im Gegenstrom zu den Heizflammen oder Heizgasen.Heating gases flow through the evaporator in the direction of the arrow and exit through the opening e into a condenser h with a discharge nozzle i. The liquid to be concentrated or the raw phosphoric acid is fed to the evaporator through a line k through the opening e; the concentrate leaves the evaporator through the opening d and enters a storage container I. As can be seen from the drawing, the thickness of the liquid layer increases in countercurrent to the heating flames or heating gases.

Es ist nicht erforderlich, die Heizflammen oder Heizgase im Gegenstrom zu der Flüssigkeit durch den Verdampfer hindurchzuführen. Man kann auch nach dem Gleichstromprinzip arbeiten. In diesem Falle muß der Durchmesser der Öffnung e etwas größer sein als der Durchmesser der Öffnung d, durch die dann nicht nur die Heizflammen oder die Heizgase eintreten, sondern auch die zu konzentrierende Flüssigkeit zugeführt wird.It is not necessary to pass the heating flames or heating gases through the evaporator in countercurrent to the liquid. You can also work according to the direct current principle. In this case, the diameter of the opening e must be somewhat larger than the diameter of the opening d through which not only the heating flames or the heating gases then enter, but also the liquid to be concentrated is fed.

Claims (1)

Patentanspruch:Claim: Verfahren zum Eindampfen von Flüssigkeiten nach Patent 553 814, dadurch gekennzeichnet, daß konisch gestaltete Drehrohre verwendet werden, deren erweiterte Enden an den Eintrittsstellen für die Heizgase oder Heizflammen liegen.Method for evaporation of liquids according to patent 553 814, thereby characterized in that conically shaped rotary tubes are used, their expanded Ends at the entry points for the heating gases or heating flames. Hierzu 1 Blatt Zeichnungen1 sheet of drawings gedruckt if) der reichsdruckekeiprinted if) of the reichsdruckekei
DE1930555805D 1930-01-26 1930-09-11 Process for evaporation of liquids Expired DE555805C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE553814T 1930-01-26
DE555805T 1930-09-11

Publications (1)

Publication Number Publication Date
DE555805C true DE555805C (en) 1932-07-28

Family

ID=25945360

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930555805D Expired DE555805C (en) 1930-01-26 1930-09-11 Process for evaporation of liquids

Country Status (1)

Country Link
DE (1) DE555805C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1035114B (en) * 1954-02-09 1958-07-31 Fonte Electr S A Process and device for the production of pure anhydrous orthophosphoric acid in crystal form

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1035114B (en) * 1954-02-09 1958-07-31 Fonte Electr S A Process and device for the production of pure anhydrous orthophosphoric acid in crystal form

Similar Documents

Publication Publication Date Title
DE555805C (en) Process for evaporation of liquids
DE604013C (en) mandrel
DE558637C (en) Process and device for evaporation of liquids
DE422240C (en) Change and shut-off valve for hot gases
DE537209C (en) Process for the production of the construction scaffolding for devices of the wireless communication technology
AT42797B (en) Tube ball mill.
DE832221C (en) Screw fastening on housing walls or the like.
DE453560C (en) Calibrated rollers or roller segments for the production of twist drills
AT148968B (en) Whisk, especially for bottles and. like
AT303651B (en) Spray nozzle
DE604270C (en) Drum washing machine
AT239752B (en) Bow mechanism
DE587519C (en) Rail butt connection by means of two clamp-shaped longitudinal strips pressed onto the rail foot
DE534915C (en) Rotary drum for mixing liquid metals and their alloys
DE610672C (en) Hollow rivet connection, especially for aircraft, using hollow rivets that are open on both sides
DE506518C (en) notepad
DE531570C (en) Drying drum in which the length is arranged according to star, cross or angular trickle installations
AT75273B (en) Burners with incandescent bodies.
DE613321C (en) Friction bar with interrupted rubbing surface for roller paint grinders
DE518380C (en) Cleaning device for the drying tubes of rotating tube dryer
DE508294C (en) Screw locking
DE402956C (en) Reaming machine
AT81596B (en) Self-stabilizing aircraft. Self-stabilizing aircraft.
AT128768B (en) Process for producing a welded or soldered connection between flat or slightly curved double walls.
DE527924C (en) Ship propeller with combined radial and axial pitch changes