Dioctyl phthalate recovery equipment

Abstract

The utility model provides dioctyl phthalate recovery equipment, which belongs to the technical field of organic compounds, and comprises a distillation box, the lower surface of the distillation box is fixedly connected with a support column, the side surface of the distillation box is fixedly communicated with a condensation pipe, the upper surface of the distillation box is fixedly connected with a reaction kettle, and the reaction kettle is fixedly connected with a reaction kettle. The reaction kettle is in threaded connection with a device cover through a connecting end, the upper surface of the device cover is fixedly communicated with a feeding pipe, the reaction kettle is provided with a heating cavity, a heating pipe is arranged in the heating cavity, and a material mixing assembly is arranged in the reaction kettle. According to the reaction kettle, the heating cavity is formed in the reaction kettle, the heating pipe is placed in the heating cavity, the temperature in the reaction kettle can be controlled by utilizing the heating pipe, the stirring structure is arranged in the reaction kettle, the rotation of the rotating shaft is controlled by the motor, and then the stirring rod is driven to rotate, so that raw materials are mixed.

Description

Technical Field

[0001] The utility model belongs to the technical field of organic compounds, and particularly relates to a dioctyl ester recovery device. Background Art

[0002] Dioctyl phthalate, abbreviated as dioctyl phthalate, is an organic compound. It is a common plasticizer used in the production of plastic products, especially in the production of polyvinyl chloride. It can increase the flexibility and ductility of plastics, making them easier to process and shape.

[0003] Existing publication CN103736590B discloses a dioctyl ester recovery device, which includes a high-voltage power supply, a controller, and a filter, a cooler, an electrostatic recovery device, and a fan connected in sequence. The electrostatic recovery device is provided with a plurality of interconnected high-voltage electrostatic generators.

[0004] Existing announcement number CN105541628B discloses a method for recovering dioctyl phthalate, using filter residues produced in an industrial production process as raw materials, alcohol as an extraction solvent, heating and stirring to carry out an activated carbon desorption reaction, the stirring speed is first fast and then slow, after the desorption reaction is completed, the reaction liquid is filtered out by suction, and the filter cake is rinsed twice; the reaction liquid is distilled under reduced pressure to obtain the product DIOP and the solvent isopropanol, and the solvent is recovered for recycling.

[0005] The existing dioctyl ester recovery equipment still has the following shortcomings:

[0006] 1. The existing equipment needs to stir the mixture for a long time during the recovery of dioctyl ester, and the temperature of the reactor needs to be controlled.

[0007] 2. The recovery equipment needs to squeeze the filter residue to further improve the recovery efficiency. Utility Model Content

[0008] The utility model aims to solve the problems of long-time stirring, controlling the temperature in the reaction kettle and extruding the filter residue in the prior art, and proposes a dioctyl ester recovery device.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A dioctyl ester recovery device comprises: a distillation box, a support column is fixedly connected to the lower surface of the distillation box, a condenser is fixedly connected to the side of the distillation box, a reaction kettle is fixedly connected to the upper surface of the distillation box, a device cover is threadedly connected to the reaction kettle through a connecting end, a feed pipe is fixedly connected to the upper surface of the device cover, the reaction kettle is provided with a heating chamber, a heating pipe is provided in the heating chamber, and a mixing component is provided in the reaction kettle;

[0011] Preferably, the mixing assembly comprises a filtrate structure, a stirring structure and an extrusion structure, the filtrate structure comprises a filter barrel, the filter barrel is fixedly connected to the inner side of the reactor, a plurality of filter holes are arranged on the side of the filter barrel, a flow guide hole is arranged on the inner bottom surface of the reactor, and the reactor is connected to the distillation box through the flow guide hole;

[0012] Preferably, the stirring structure is arranged in the filter barrel, and the stirring structure comprises a rotating shaft, a stirring rod and a motor, the motor is fixedly connected to the upper surface of the device cover, the output end of the motor passes through the device cover and is fixedly connected to the rotating shaft, the rotating shaft extends into the filter barrel, and a plurality of stirring rods are fixedly connected to the side of the rotating shaft;

[0013] Preferably, the extrusion structure is arranged in the filter barrel, two slide grooves are arranged on the inner wall of the filter barrel, the extrusion structure comprises a pressing plate, the pressing plate is slidably connected in the slide groove, and the diameter of the pressing plate is equal to the inner diameter of the filter barrel;

[0014] Preferably, a through groove is provided on the upper surface of the pressing plate, the through groove is in the shape of a long strip, the length of the through groove is 5 cm longer than the length and width of the stirring structure, and the rotating shaft passes through the through groove;

[0015] Preferably, a feed port is provided on the upper surface of the pressing plate, and the feed port is arranged directly below the feed pipe, and the inner diameter of the feed port is equal to the outer diameter of the feed pipe.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The utility model provides a heating chamber in the reactor, and a heating tube is placed in the heating chamber, so that the temperature inside the reactor can be controlled by the heating tube. A stirring structure is provided in the reactor, and the rotation of the rotating shaft is controlled by a motor, thereby driving the rotation of the stirring rod, so as to achieve mixing of the raw materials.

[0018] 2. The utility model provides a slide groove on the inner wall of the filter barrel, and slides the pressure plate into the slide groove. The through groove and the feed port provided on the pressure plate ensure the normal operation of the stirring structure and the feed. After the stirring is completed, the filter residue can be squeezed by sliding the pressure plate downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural schematic diagram of a dioctyl ester recovery device proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the upper opening of a dioctyl ester recovery device proposed by the utility model;

[0021] Figure 3This is a cross-sectional schematic diagram of a reactor of a dioctyl ester recovery device proposed by the utility model;

[0022] Figure 4 The utility model discloses a cross-sectional schematic diagram of a mixing barrel of a dioctyl ester recovery device.

[0023] In the figure: 1 reaction kettle, 2 heating chamber, 3 heating tube, 4 connecting end, 5 filter barrel, 6 filter hole, 7 slide groove, 8 pressure plate, 9 through groove, 10 feed port, 11 device cover, 12 motor, 13 feed tube, 14 rotating shaft, 15 stirring rod, 16 support column, 17 condenser, 18 distillation box, 19 guide hole. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Reference Figure 1-Figure 4 A dioctyl ester recovery device comprises: a distillation box 18, a support column 16 is fixedly connected to the lower surface of the distillation box 18, a condenser 17 is fixedly connected to the side of the distillation box 18, a reactor 1 is fixedly connected to the upper surface of the distillation box 18, a device cover 11 is threadedly connected to the reactor 1 through a connecting end 4, a feed pipe 13 is fixedly connected to the upper surface of the device cover 11, a heating chamber 2 is provided in the reactor 1, a heating pipe 3 can be used to control the temperature inside the reactor 1, a heating pipe 3 is provided in the heating chamber 2, and a mixing component is provided in the reactor 1;

[0026] The mixing assembly includes a filtrate structure, a stirring structure and an extrusion structure. The filtrate structure includes a filter barrel 5, which is fixedly connected to the inner side of the reactor 1. The side of the filter barrel 5 is provided with a plurality of filter holes 6. The inner bottom surface of the reactor 1 is provided with a guide hole 19. The reactor 1 is connected to the distillation box 18 through the guide hole 19.

[0027] The stirring structure is arranged in the filter barrel 5, and the stirring structure includes a rotating shaft 14, a stirring rod 15 and a motor 12. The motor 12 is fixedly connected to the upper surface of the device cover 11. The output end of the motor 12 passes through the device cover 11 and is fixedly connected to the rotating shaft 14. The rotating shaft 14 extends into the filter barrel 5. A plurality of stirring rods 15 are fixedly connected to the side of the rotating shaft 14. The rotation of the rotating shaft 14 is controlled by the motor 12, thereby driving the rotation of the stirring rod 15, so as to achieve mixing of the raw materials.

[0028] The extrusion structure is arranged in the filter barrel 5, and two slide grooves 7 are arranged on the inner wall of the filter barrel 5. The extrusion structure includes a pressing plate 8, and the pressing plate 8 is slidably connected in the slide groove 7. The diameter of the pressing plate 8 is equal to the inner diameter of the filter barrel 5. By arranging the slide groove 7 on the inner wall of the filter barrel 5 and sliding the pressing plate 8 in the slide groove 7, the through groove 9 and the feed port 10 arranged on the pressing plate 8 will ensure the normal operation of the stirring structure and the feed. After the stirring is completed, the filter residue can be squeezed by sliding down the pressing plate 8;

[0029] A through groove 9 is provided on the upper surface of the pressing plate 8. The through groove 9 is in the shape of a long strip. The length of the through groove 9 is 5 cm longer than the length and width of the stirring structure. The rotating shaft 14 passes through the through groove 9.

[0030] A feed port 10 is provided on the upper surface of the pressing plate 8 . The feed port 10 is arranged directly below the feed pipe 13 . The inner diameter of the feed port 10 is equal to the outer diameter of the feed pipe 13 .

[0031] The functional principle of the utility model can be explained through the following operation modes:

[0032] By providing a heating chamber 2 in the reactor 1 and placing a heating tube 3 in the heating chamber 2, the temperature inside the reactor 1 can be controlled by the heating tube 3. A stirring structure is provided in the reactor 1, and the rotation of the rotating shaft 14 is controlled by the motor 12, thereby driving the rotation of the stirring rod 15, so as to achieve mixing of the raw materials. By providing a slide groove 7 on the inner wall of the filter barrel 5 and sliding the pressing plate 8 in the slide groove 7, the through groove 9 and the feed port 10 provided on the pressing plate 8 will ensure the normal operation of the stirring structure and the feed. After the stirring is completed, the filter residue can be squeezed by sliding the pressing plate 8 down.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A dioctyl ester recovery device, characterized in that: The invention comprises a distillation box (18), the lower surface of which is fixedly connected to a support column (16), the side of which is fixedly connected to a condenser (17), the upper surface of which is fixedly connected to a reactor (1), the reactor (1) being threadedly connected to a device cover (11) via a connecting end (4), the upper surface of which is fixedly connected to a feed pipe (13), the reactor (1) being provided with a heating chamber (2), the heating chamber (2) being provided with a heating pipe (3), and the reactor (1) being provided with a mixing assembly.

2. A dioctyl ester recovery device according to claim 1, characterized in that: in: The mixing assembly comprises a filtrate structure, a stirring structure and an extrusion structure. The filtrate structure comprises a filter barrel (5). The filter barrel (5) is fixedly connected to the inner side surface of the reaction kettle (1). The side surface of the filter barrel (5) is provided with a plurality of filter holes (6). The inner bottom surface of the reaction kettle (1) is provided with a guide hole (19). The reaction kettle (1) is connected to the distillation box (18) through the guide hole (19).

3. A dioctyl ester recovery device according to claim 2, characterized in that: in: The stirring structure is arranged in the filter barrel (5), and comprises a rotating shaft (14), a stirring rod (15) and a motor (12); the motor (12) is fixedly connected to the upper surface of the device cover (11); the output end of the motor (12) passes through the device cover (11) and is fixedly connected to the rotating shaft (14); the rotating shaft (14) extends into the filter barrel (5); and a plurality of stirring rods (15) are fixedly connected to the side of the rotating shaft (14).

4. A dioctyl ester recovery device according to claim 3, characterized in that: in: The extrusion structure is arranged in a filter barrel (5), and two slide grooves (7) are arranged on the inner wall of the filter barrel (5). The extrusion structure comprises a pressing plate (8), and the pressing plate (8) is slidably connected in the slide groove (7). The diameter of the pressing plate (8) is equal to the inner diameter of the filter barrel (5).

5. A dioctyl ester recovery device according to claim 4, characterized in that: in: A through groove (9) is provided on the upper surface of the pressing plate (8), and the through groove (9) is in the shape of a long strip. The length of the through groove (9) is 5 cm longer than the length and width of the stirring structure, respectively. The rotating shaft (14) passes through the through groove (9).

6. A dioctyl ester recovery device according to claim 4, characterized in that: in: A feed port (10) is provided on the upper surface of the pressing plate (8), and the feed port (10) is arranged directly below the feed pipe (13), and the inner diameter of the feed port (10) is equal to the outer diameter of the feed pipe (13).

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