DE6751015U - DEVICE FOR EXTRACTING BITUMINOESE MASSES - Google Patents

Description

P.A. 519 092 * 8/31/81

Essen * the 3 = August 196b

PATENT LAWYERS (30 172 / Jg-)

Dr. Andreevsky
Dr.-lno. Honke
Essen, Kettwiger Str. 36

(AmHauDtbahnhol Uditbuig)
Telephone 225SÜ2 / 03

Utility model registration

of the company TFSRBAU Gesellschaft

for road construction mbH ,

K ~ 5 Esse n, Rüttenscheider Str. 66

Device for extracting bituminous leaves

The invention relates to a device for extracting bituminous masses. The phrase "bituminous Masses "denotes mixtures of any aggregates and a bituminous binder like them '' can be used, for example, in road construction.

The quality requirements for bituminous road building materials have always required monitoring of the composition. The extraction removes the binder from the Separate aggregates to examine both products separately to be able to. In this investigation method, a basic distinction is made between cold and hot extraction. During the cold extraction, a sample of the to investigating masses so often with a solvent

. Poured over and decanted until the binding agent ; .. is dissolved and the solvent is no longer discolored. ._ The hot extract, on the other hand, is prepared in a suitable ;, direction .for extraction carried out in the solvent , 'is evaporated, condensed on a cooler, dripped onto the sample and the binder washes out. The binder-solvent mixture is collected, the solvent is then evaporated again. Known devices to a Such extraction of bituminous masses consist of the washing column with a sieve basket inserted therein the uptake of the bituminous masses, the cooler arranged above the washing column and below the washing column arranged receiving flask, with solvent from the receiving flask evaporated and condensed on the cooler as it drips from the cooler onto the bituminous mass. In the known devices of this type, the cooler has cooling coils, so that the condensed solvent drips off the cooling coils. That prevents an equal-; moderate distribution of the solvent over those in the sieve basket existing bituminous masses. Incomplete extraction or long extraction times are the result. About that In addition, the solvent vapors produced during evaporation of the solvent are mostly caused by the Out wash column, which can result in further irregularities. In contrast, the invention has the task based on creating a device for extracting bituminous masses with which without difficulty in short Times a complete extraction of bituminous mass can be carried out.

The invention relates to a device for extracting bituminous masses, consisting of a washing column with therein

used sieve basket for receiving the bituminous mass ^ above the washing column arranged cooler and receiving flask arranged below the motorcade. The device according to the invention is characterized by the combination of the following features:

a) the cooler occupies the cross-section of the scrubbing column Γ. k adapted cooling surfaces with cooling and drip elements distributed over the cross-section,

b) a bypass line connects the collecting flask and the upper part of the washing column assigned to the cooler,

c) a three-way cock is between the bypass line and the wash column and thus between the wash column and Arranged collecting piston, which is in the "open" position connects the receiving flask to the wash column, in the position "to" the collecting flasks of the Viash column separates and in a "drain" position

O a drainage port to vent the solvent

from the wash column allows.

If you work with the device according to the invention, so result First of all, there are considerable advantages from a functional point of view, because as a result of the described design of the Cooler, the condensed solvent spreads over the entire cross-section of the bituminous mass in the sieve basket evenly distributed and consequently a uniform extraction in short extraction times is ensured. Dax ' In addition, the extraction process is carried out by ascending

Solvent vapors are not affected, as they reach the cooler via the bypass line. The three-way cock can be adjusted accordingly. In addition, the three-way stopcock brings further operational simplifications, as will be further explained below with reference to a drawing. The only figure shows in schematic Representation of the view of a device according to the invention for extracting bituminous masses.

The device shown in the figure consists in its basic structure of the washing column 1 with inserted sieve basket 2 for receiving the bituminous masses, above the washing column 1 arranged cooler 3> and below the washing column arranged collecting flask 4. The cooler 3 has a cross section the wash column adapted cooling surface with ii - and drip elements 5 distributed over the cross section. A bypass line β connects the collecting flask 4 and the upper part of the wash column 1 assigned to the cooler 3. £ f | lungs closed, namely the position open, in which the washing

column 1 is connected to the collecting flask 4, the position closed in which the washing column 1 is separated from the collecting flask 4 and the position outlet ₃ in which the solvent can be drawn off from the washing column 1 via an outlet port 8. The approach is as follows:

Let the bituminous cash register in the sieve basket first 2, in the receiving flask 4 may see the solvent are located. Then the solvent is e.g.

The heating hood is heated and the solvent vapors reach the cooler 3. This happens via the bypass line 6. The solvent condenses on the cooler 3 and drips onto the "bituminous masses in the sieve basket 2. The binder is dissolved and runs with the solvent as a binder-solvent mixture back into the collecting flask%, where the solvent ^{evaporates again due to the considerably lower boiling point 1.} The three-way valve 7 allows the three settings already described, and is set to open when extraction is off. This open can be set to a greater or lesser extent, and is set so that the solvent vapors reach the cooler 3 via the bypass line 6. When the solvent is distilled, the three-way cock is set to "closed". The setting to "Expiry" takes place after the destination has ended. During the extraction, the tap is opened so that the binding agent. Solvent mixture can run off immediately into the receiving flask 4. It is extracted using what is known as a continuous process. As the steam via the riser pipe to the cooler 3 felt

', the extraction process cannot be influenced by the vaporous solvent. As a result of ! "Distribution of the condensed solvent over the entire cross-section of the bituminous in the sieve basket 2 Masses and due to the fact that the extraction process is not influenced by the vaporous solvent the extraction tent of a given amount of bituminous mass can be shortened to about 20 ^. aside from that the distillation can be started immediately after the extraction and removal of the sample

67 ^ 1 P

a second device is not required. This work process is through characterized in that the built-in three-way valve 7 is closed and. condensed solvents in the wash column 1 is caught. After the distillation has ended, the recovered solvent is turned off by turning the three-way stopcock 7 filled into any containers via a drain pipe 8 on the drain. The receiving flask 4-, for example one Round bottom flask, with the remaining binder is against a clean Round bottom flasks exchanged and without further cleaning work the next extraction and distillation can be started. - The result is the inventive Device a device of a very simple design, which is characterized by functional advantages and the operating technology described Simplification distinguishes itself. Appropriately, the device is made of glass so that all Let the service personnel visually follow processes in the simplest possible way.

Protection claims:

Claims (1)

P.A. 519 092 * 8/31/68 / Eye protection requirements: Device for extracting bituminous mass, consisting of from the scrubbing column with a sieve basket inserted in it for the uptake of the bituminous masses, above the scrubbing column arranged condenser and collecting flask arranged below the wash column characterized by the combination of the following characteristics a) the cooler (J) has the cross section of the scrubbing column (1) adapted cooling surfaces with cooling and drip elements (5) distributed over the cross-section, b) a bypass line (6) connects the receiving flask (4) and the upper part of the washing column (1) assigned to the cooler (j5), c) a three-way valve (7) is between the bypass line (6) and washing column (1) and thus between washing column (1) and collecting flask (4) arranged in the The "open" position connects the collecting flask (4) to the washing column (1), and the "to" position connects the The collecting flask (4) is separated from the washing column (1) and is in the "drain" position via an outlet nozzle (8) allows solvents to be withdrawn from the wash column (1). PAe Dr Andrejewski, Dr Honke