Glue solution devolatilization system

Abstract

The invention discloses a glue solution devolatilization system which comprises a devolatilization machine shell, a washing mechanism is installed at the top end of the inner wall of the devolatilization machine shell, a feeding mechanism is fixedly installed at the top end of one side of the devolatilization machine shell, a treatment mechanism is fixedly installed in the devolatilization machine shell, a concentration mechanism is arranged on one side of the devolatilization machine shell, and a reflux pump is fixedly installed on one side of the concentration mechanism. By adopting normal-pressure falling film and negative-pressure film evaporation processes, the energy consumption is reduced, and compared with the conventional elutriation condensation process, the emission of three wastes is greatly reduced; the solvent in the low-molecular-weight polymer is removed through the two-stage falling film and the two-stage thin film, the volatile component content of the final product is smaller than 0.5%, a small amount of waste gas is discharged in the product packaging process, no waste water is discharged, and the purposes of energy conservation and emission reduction are achieved. Compared with a traditional elutriation condensation process, the devolatilization production process provided by the invention has the advantages that the consumption of steam is reduced, the discharge of wastewater is reduced, the discharge of waste gas is reduced, and the devolatilization production process is an energy-saving and environment-friendly process technology.

Claims

1. A glue liquid devolatilization system, comprising a devolatilization housing (1), characterized in that: A water washing mechanism (4) is installed at the top of the inner wall of the devolatilizer shell (1), a feeding mechanism (3) is fixedly installed at the top of one side of the devolatilizer shell (1), a processing mechanism (2) is fixedly installed inside the devolatilizer shell (1), a concentration mechanism (8) is provided on one side of the devolatilizer shell (1), a reflux pump (7) is fixedly installed on one side of the concentration mechanism (8), a polymerization tank (5) is fixedly installed on one side of the top of the devolatilizer shell (1), and the processing mechanism (2) comprises a primary falling film evaporator (201), a secondary falling film evaporator (202), a secondary thin film evaporator (203) and a tertiary thin film evaporator (204), and a first delivery pump (201) is provided on one side of the primary falling film evaporator (201), a second falling film evaporator (202) and a second thin film evaporator (203), respectively. 07), a second delivery pump (206) and a third delivery pump (205), the liquid outlet of the first delivery pump (207) is fixedly connected to a first discharge pipe (209), the liquid outlet of the second delivery pump (206) is fixedly connected to a second discharge pipe (211), the liquid outlet of the third delivery pump (205) is fixedly connected to a third discharge pipe (213), the first discharge pipe (209) is fixedly connected to the inlet of the secondary falling film evaporator (202) at one end away from the first delivery pump (207), the second discharge pipe (211) is fixedly connected to the inlet of the secondary thin film evaporator (203) at one end away from the second delivery pump (206), and the third discharge pipe (213) is fixedly connected to the inlet of the tertiary thin film evaporator (204) at one end away from the third delivery pump (205).

2. A glue devolatilization system according to claim 1, characterized in that: The concentrating mechanism (8) comprises a concentrating shell (81) and a filter plate (88). The top ends of both sides of the inner wall of the concentrating shell (81) are provided with movable grooves (84). The insides of the two movable grooves (84) are slidably connected with movable blocks (85). The opposite ends of the two movable blocks (85) are respectively fixedly connected to the two ends of the filter plate (88). A plurality of heating nets (82) are fixedly installed inside the concentrating shell (81). One side of the top end of the concentrating shell (81) is fixedly connected with an exhaust pipe (87). One side of the inner wall of the concentrating shell (81) is rotatably connected with a stirring paddle (86). One side of the concentrating shell (81) is fixedly installed with a concentration sensor (83) extending into the inside thereof. The bottom ends of the two movable blocks (85) are fixedly installed with support springs (89). The bottom ends of the two support springs (89) are respectively fixedly connected to the sides directly opposite to the two movable grooves (84). The other side of the concentrating shell (81) is fixedly connected to one side of the reflux pump (7).

3. A glue devolatilization system according to claim 2, characterized in that: The liquid inlet of the reflux pump (7) is fixedly connected to an extraction pipeline extending to the inside of the concentration shell (81), and the liquid outlet of the reflux pump (7) is fixedly connected to a reflux hose (6) extending to the inside of the polymerization tank (5).

4. The glue devolatilization system according to claim 1, characterized in that: The water washing mechanism (4) comprises a screw rod (42) and a water washing platform (44); a displacement block (48) slidably connected to the devolatilizer housing (1) is threadedly connected to the middle portion of the screw rod (42); the bottom end of the displacement block (48) is fixedly connected to the top end of the water washing platform (44); the bottom end of the water washing platform (44) is fixedly connected to a plurality of water washing nozzles (43); a pump body (46) is provided at the top end of the screw rod (42); a liquid inlet of the pump body (46) is fixedly connected to a material taking pipeline (47) extending to the inside of the polymerization tank (5); a liquid outlet of the pump body (46) is fixedly connected to a conveying hose (45) extending to the inner wall of the water washing platform (44); and the bottom end of the pump body (46) is fixedly connected to the devolatilizer housing (1).

5. A glue devolatilization system according to claim 4, characterized in that: Both ends of the screw rod (42) are rotatably connected to a side directly opposite to the devolatilizer housing (1), and a servo motor (41) for driving the screw rod (42) to rotate is fixedly mounted on a side of the devolatilizer housing (1) away from the feeding mechanism (3).

6. The glue devolatilization system according to claim 1, characterized in that: The liquid inlet of the first delivery pump (207) is fixedly connected to a first feed pipeline (208), the liquid inlet of the second delivery pump (206) is fixedly connected to a second feed pipeline (210), and the liquid inlet of the third delivery pump (205) is fixedly connected to a third feed pipeline (212). One end of the first feed pipeline (208) away from the first delivery pump (207) is fixedly connected to the outlet of the first falling film evaporator (201), one end of the second feed pipeline (210) away from the second delivery pump (206) is fixedly connected to the outlet of the second falling film evaporator (202), and one end of the third feed pipeline (212) away from the third delivery pump (205) is fixedly connected to the outlet of the second thin film evaporator (203).

7. The glue devolatilization system according to claim 1, characterized in that: The inlet of the first-stage falling film evaporator (201) is fixedly connected to a feed hopper (12), the bottom end of the third-stage thin film evaporator (204) is fixedly connected to a filling pipe (11) extending to the outside, and the four corners of the bottom end of the devolatilizer shell (1) are fixedly installed with support legs (10), and both ends of the first-stage falling film evaporator (201), both ends of the second-stage falling film evaporator (202), both ends of the second-stage thin film evaporator (203) and both ends of the third-stage thin film evaporator (204) are fixedly connected to the side of the devolatilizer shell (1) facing the same.

8. The glue devolatilization system according to claim 1, characterized in that: The surface of the first-stage falling film evaporator (201), the surface of the second-stage falling film evaporator (202), the surface of the second-stage thin film evaporator (203) and the surface of the third-stage thin film evaporator (204) are all fixedly connected to a connecting pipe (9) extending to the outside, and one end of the four connecting pipes (9) extending to the outside is fixedly connected to a side directly opposite to the concentration mechanism (8).

9. The glue devolatilization system according to claim 1, characterized in that: The feeding mechanism (3) comprises a feeding platform (31) and a feeding shell (34); the top end of the feeding platform (31) is fixedly connected to the bottom end of the feeding shell (34); one side of the inner wall of the feeding shell (34) is rotatably connected to a conveying screw (33); one side of the feeding shell (34) is fixedly connected to a stepping motor (36) for driving the conveying screw (33) to rotate; the other side of the feeding shell (34) is fixedly connected to a mounting pipe (32); one end of the mounting pipe (32) away from the feeding shell (34) is fixedly connected to a side directly facing the devolatilizer shell (1); the top end of the feeding shell (34) is fixedly connected to an injection pipe (35); and one end of the feeding platform (31) is fixedly connected to the devolatilizer shell (1).

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