Methylbenzene recovery solvent separating and filtering equipment for vitamin H production

Abstract

The invention provides methylbenzene recovery solvent separating and filtering equipment for vitamin H production, and belongs to the technical field of vitamin H. The methylbenzene recovery solvent separating and filtering equipment comprises a rectifying tower, a reboiler and a feeding and filtering mechanism are arranged on the left side of the rectifying tower, the reboiler is arranged below the feeding and filtering mechanism, and the upper end of the rectifying tower is connected with a condenser through a gas discharging pipe; a buffer tank is connected to the right side of the condenser through a communicating pipe, a layering device is connected to the lower end of the buffer tank through a discharging pipe, a sampling mechanism is arranged on the left side of the layering device, and a buffer plate is arranged on the inner top wall of the right side of the layering device; by arranging the feeding filtering mechanism, methylbenzene waste liquid entering the filtering box can be filtered, solid impurities are screened out, then the solid impurities leftwards flow into the collecting box through vibration screens of a filtering plate and a material guiding plate, the situation that the impurities are continuously accumulated to block filtering holes of the filtering plate is avoided, the cleaning frequency of the filtering plate is reduced, and the working efficiency is improved. The filtering efficiency of the methylbenzene waste liquid is improved.

Claims

1. A toluene recovery solvent separation and filtration device for vitamin H production, comprising a distillation tower (1), characterized in that: A reboiler (2) and a feed filter mechanism (3) are arranged on the left side of the distillation tower (1), and the reboiler (2) is arranged below the feed filter mechanism (3); the upper end of the distillation tower (1) is connected to a condenser (4) via a gas discharge pipe (9); the right side of the condenser (4) is connected to a buffer tank (5) via a connecting pipe (10); the lower end of the buffer tank (5) is connected to a stratifier (6) via a discharge pipe (11); a sampling mechanism (7) is arranged on the left side of the stratifier (6); a buffer plate (13) is arranged on the right inner top wall of the stratifier (6); and the discharge port of the discharge pipe (11) faces the buffer plate (13); The feed filtering mechanism (3) comprises a filter box (301), and the filter box (301) is fixedly mounted on the left outer wall of the distillation tower (1) via a mounting plate; a feed inlet (302) is provided at the right end of the upper surface of the filter box (301); a filter plate (304) is movably connected to the inside of the filter box (301) via a hinge block (303); a material guide plate (306) is abutted below the left end of the filter plate (304); the material guide plate (306) is hinged to the inside of the left end of the filter box (301) via a hinge shaft; a collection box (307) is provided on the left side of the material guide plate (306); the collection box (307) is fixedly mounted on the left side wall of the filter box (301) via bolts; the filter box A servo motor (308) is provided on the right outer wall of (301), and the power output end of the servo motor (308) is drivingly connected to a rotating shaft (309), and a cam 1 (310) and a cam 2 (311) are provided on the circumferential surface on the left side of the rotating shaft (309), and the cam 2 (311) is provided on the left side of the cam 1 (310), and a hollow connecting plate (312) is provided on the circumferential surface of the cam 1 (310), and the raised end of the cam 1 (310) is abutted against the inner part of the lower end of the hollow connecting plate (312), the upper end of the hollow connecting plate (312) is connected to the lower end of the filter plate (304), and the raised end of the cam 2 (311) is abutted against the lower end of the right side of the guide plate (306).

2. The toluene recovery solvent separation and filtration equipment for vitamin H production according to claim 1, characterized in that: Baffles (305) are provided on both the front and rear sides and the right side of the upper surface of the filter plate (304), and the lower end of the feed port (302) penetrates the filter box (301) and extends to the top of the right end of the filter plate (304).

3. The toluene recovery solvent separation and filtration equipment for vitamin H production according to claim 1, characterized in that: An impurity outlet is provided on the left side wall of the filter box (301); the middle portion of the guide plate (306) is arranged inside the impurity outlet; the left end of the guide plate (306) is arranged above the inside of the collection box (307); the right side wall of the collection box (307) is in contact with the left side outer wall of the filter box (301) via a sealing gasket (313); a feed pipe (8) is provided in the middle portion of the lower end of the filter box (301); and the lower end of the feed pipe (8) is plugged into the left side interior of the distillation tower (1).

4. The toluene recovery solvent separation and filtration equipment for vitamin H production according to claim 1, characterized in that: The sampling mechanism (7) comprises an electric lifting rod (701), and the electric lifting rod (701) is arranged on the right outer wall of the distillation tower (1), the upper end of the electric lifting rod (701) is provided with a connecting block (702), the right side of the connecting block (702) is provided with a clamping plate (703), the right side of the clamping plate (703) is plugged with a clamping plate (704) via a plug-in plate (706), a separating funnel (705) is clamped between the clamping plate (703) and the clamping plate (704), and a rotating rod (713) is arranged inside the upper end of the plug-in plate (706), and the circumferential surface of the rotating rod (713) is clamped to the inside of the plug-in plate (706) via a clamping block (716).

5. The toluene recovery solvent separation and filtration equipment for vitamin H production according to claim 4, characterized in that: A slot one (707) is provided inside the clamping plate one (703), the plug-in board (706) is plugged into the inside of the slot one (707), the lower end of the plug-in board (706) is abutted against an abutting block one (709), the lower end of the abutting block one (709) is provided with a spring one (708), and the spring one (708) and the abutting block one (709) are both provided inside the lower end of the slot one (707).

6. The toluene recovery solvent separation and filtration equipment for vitamin H production according to claim 4, characterized in that: A slot 2 (710) is provided inside the upper end of the first clamp (703), the left end of the rotating rod (713) is inserted into the inside of the second slot (710), the right end of the rotating rod (713) passes through the second clamp (704) and is connected to a knob, the left end of the rotating rod (713) is abutted against a second abutment block (712), the left end of the second abutment block (712) is provided with a second spring (711), and the second spring (711) and the second abutment block (712) are both provided inside the second slot (710).

7. The toluene recovery solvent separation and filtration equipment for vitamin H production according to claim 4, characterized in that: The upper ends of the second clamping plate (704) and the plug-in plate (706) are both provided with a movable groove (714), the longitudinal width of which matches the card block (716), the plug-in plate (706) is provided with a rotating groove (715), and the rotating groove (715) is connected to the movable groove (714) inside the plug-in plate (706), the transverse width of the rotating groove (715) is the same as that of the card block (716), and the card block (716) is arranged inside the rotating groove (715).

8. The toluene recovery solvent separation and filtration equipment for vitamin H production according to claim 4, characterized in that: A movable through groove (717) is provided on the left side of the upper end of the delaminating device (6); the overall diameter of the first clamping plate (703) and the second clamping plate (704) matches the movable through groove (717); the lower ends of the first clamping plate (703) and the second clamping plate (704) can be sealed and plugged into the movable through groove (717) via a sealing ring; and a transparent window (12) is provided on the front side of the delaminating device (6).

9. The toluene recovery solvent separation and filtration equipment for vitamin H production according to claim 1, characterized in that: A liquid extraction pump (14) is provided at the rear lower end of the stratifier (6); the front end of the liquid extraction pump (14) is connected to the interior of the lower end of the stratifier (6) via a liquid extraction pipe (15); and the upper end of the liquid extraction pump (14) is connected to the interior of the distillation tower (1) via a liquid outlet pipe (16).

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