A distillation recovery device for cold rolling emulsion

Abstract

The utility model relates to distillation recovery device technical field, the utility model provides a kind of cold rolling emulsion distillation recovery device, for removing the moisture of waste emulsion and recycling emulsified oil, preliminary distillator has waste emulsion inlet and liquid outlet;The inlet of molecular distillator is communicated with the liquid outlet of preliminary distillator;Separation component is arranged between preliminary distillator and molecular distillator.The cold rolling emulsion distillation recovery device is set by two stages of preliminary distillator and molecular distillator and separation component, preliminary distillator removes part of moisture to waste emulsion first, then by molecular distillator to high concentration material is separated again, improve separation efficiency, solve the problem that distillation efficiency is low, cannot efficiently recycle emulsified oil;Molecular distillator operates at temperature far below the boiling point of emulsified oil and high vacuum environment, improve the purity and activity of recycled emulsified oil;Separation component can form plugging between two-stage distillation to maintain respective evaporation environment.

Claims

1. A cold-rolled emulsion distillation and recovery device, used to remove water from waste emulsion and recover emulsified oil, characterized in that, include: The preliminary distillation apparatus (1) has a waste emulsion inlet (101) and a liquid outlet (102). Molecular distillation apparatus (2), the inlet of which is connected to the liquid outlet (102) of the primary distillation apparatus (1), the molecular distillation apparatus (2) being used to further evaporate and concentrate the pre-concentrated waste emulsion; A separator (3) is disposed between the primary distillation apparatus (1) and the molecular distillation apparatus (2), the separator (3) being used to seal the primary distillation apparatus (1) and the molecular distillation apparatus (2).

2. The cold-rolled emulsion distillation and recovery device according to claim 1, characterized in that, The separating component (3) includes: A connecting pipe (31) is disposed between the primary distillation apparatus (1) and the molecular distillation apparatus (2), and the connecting pipe (31) is connected to the primary distillation apparatus (1) and the molecular distillation apparatus (2); The first slide valve (32) is slidably disposed on the connecting pipe (31), and the first slide valve (32) is located at the liquid outlet (102) of the primary distiller (1). The second slide valve (33) is slidably disposed on the connecting pipe (31) and located between the first slide valve (32) and the inlet of the molecular still (2). The second slide valve (33) is used to block the inlet of the molecular still (2). A temporary storage cavity (301) is formed between the second slide valve (33) and the first slide valve (32). The inlet of the temporary storage chamber (301) can be opened by sliding the first gate valve (32) so that the pre-concentrated waste emulsion can enter the temporary storage chamber (301); when the first gate valve (32) is closed, the inlet of the temporary storage chamber (301) can be connected to the inlet of the molecular distillation apparatus (2) by sliding the second gate valve (33) so that the pre-concentrated waste emulsion can enter the molecular distillation apparatus (2) for evaporation and concentration.

3. The cold-rolled emulsion distillation and recovery device according to claim 1, characterized in that, Also includes: The first condenser (4) and the preliminary distillation apparatus (1) are further provided with a gas outlet, and the gas outlet of the preliminary distillation apparatus (1) is connected to the gas inlet of the first condenser (4); The first gas-liquid separator (5) has its inlet connected to the outlet of the first condenser (4). The first gas-liquid separator (5) is used to separate the gas and water-oil mixture generated by the first condenser (4). The first vacuum pump (6) has its inlet connected to the gas outlet of the first gas-liquid separator (5). The first vacuum pump (6) is used to remove gas from the first condenser (4).

4. The cold-rolled emulsion distillation and recovery device according to claim 3, characterized in that, Also includes: Centrifugal separator (7), the liquid inlet of the centrifugal separator (7) is connected to the liquid outlet of the first gas-liquid separator (5), the centrifugal separator (7) is used to separate wastewater and emulsified oil flowing out of the liquid outlet of the first gas-liquid separator (5).

5. The cold-rolled emulsion distillation and recovery device according to claim 4, characterized in that, Also includes: The second condenser (8) is provided with a gas outlet. The gas outlet of the molecular distillation unit (2) is connected to the gas inlet of the second condenser (8). The second condenser (8) is used to condense the gas produced by the molecular distillation unit (2). The inlet of the second gas-liquid separator (9) is connected to the outlet of the second condenser (8); The inlet of the second vacuum pump (10) is connected to the gas outlet of the second gas-liquid separator (9).

6. The cold-rolled emulsion distillation and recovery device according to claim 1, characterized in that, Also includes: The first drive motor (11) is located on top of the primary distiller (1); The stirring rod (12) is fixed at one end to the movable end of the first drive motor (11); A scraper (13) is mounted on the stirring rod (12) at one end. The side of the scraper (13) away from the stirring rod (12) slides against the inner wall of the primary distillation apparatus (1). The scraper (13) can rotate with the stirring rod (12) to scrape the inner wall of the primary distillation apparatus (1).

7. The cold-rolled emulsion distillation and recovery device according to claim 1, characterized in that, Also includes: A fixing seat (14) is provided on the outer wall of the molecular distillation apparatus (2); The second drive motor (15) is mounted on the fixed base (14); There are two rotating shafts (16), which pass through the two side walls of the molecular distillation apparatus (2) and are rotatably connected to the molecular distillation apparatus (2). One of the rotating shafts (16) is located on the movable end of the second drive motor (15). The two rotating shafts (16) are arranged opposite to each other, and a stirring paddle (17) is provided between the two rotating shafts (16). The second drive motor (15) can drive the rotating shaft (16) to rotate, so as to drive the stirring paddle (17) to rotate.

8. The cold-rolled emulsion distillation and recovery device according to claim 1, characterized in that, Both the primary still (1) and the molecular still (2) are provided with jackets (1012) on their outer peripheral walls, and the jackets (1012) and the outer peripheral walls of the primary still (1) and the molecular still (2) form a flow channel (103) for the flow of heating medium.

9. The cold-rolled emulsion distillation and recovery device according to claim 8, characterized in that, Both the primary distillation apparatus (1) and the molecular distillation apparatus (2) are provided with a discharge port (1002) for discharging the heating medium on the jacket (1012).

10. The cold-rolled emulsion distillation and recovery device according to claim 1, characterized in that, The molecular still (2) is provided with a waste residue outlet at the bottom, which is used to discharge the fixed waste residue remaining after evaporation from the molecular still (2).

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