Treatment system for styrene tar

Abstract

The utility model relates to a processing system for styrene tar, which comprises a stirring box, a rotating shaft is fixedly connected to an output shaft of a motor, one end of the rotating shaft penetrates through the top of the stirring box and is rotatably connected with the stirring box through a bearing, and the other end of the rotating shaft is connected with the stirring box. A plurality of stirring rods are fixedly connected to the part, located in the stirring box, of the stirring shaft, a material pump is further installed on the stirring box, a feeding pipe and a discharging pipe are connected to the material pump, the feeding pipe and the discharging pipe are communicated with the interior of the stirring box, and the stirring rods are fixedly connected to the stirring shaft. The connecting position of the feeding pipe and the stirring box is located at the bottom of the side face of the stirring box, the end, away from the material pump, of the discharging pipe penetrates through the side wall of the stirring box and extends into the stirring box, and the end, located in the stirring box, of the discharging pipe is fixedly connected with a distribution plate; the discharge pipe is communicated with the interior of the distribution plate, and a plurality of nozzles are mounted on one side, far away from the discharge pipe, of the distribution plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of styrene production, in particular to a processing system for styrene tar. Background Art

[0002] Styrene tar is a distillation byproduct in the production process of styrene. Its components are relatively complex and contain high-boiling point byproducts, polymer residues, inhibitors, etc. in the production process of styrene. An important processing direction of styrene tar is to mix it with other substances and blend it into carbon black raw materials or heavy fuel oil. The utility model patent with patent number CN219356059U discloses an efficient mixing device for styrene tar. Due to the characteristics of styrene tar such as high viscosity, the mixture in the tank cannot be fully mixed, resulting in unsatisfactory processing effect of styrene tar. Therefore, there are still shortcomings and deficiencies in the prior art. Utility Model Content

[0003] The utility model aims to provide a processing system for styrene tar to solve the above problems.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] Provided is a processing system for styrene tar, comprising a first reactor, a second reactor, an oil-water separation tank, a distillation tower and a processing device, wherein the processing device comprises a stirring box, a motor is fixedly installed on the top of the stirring box, a rotating shaft is fixedly connected to the output shaft of the motor, the rotating shaft is vertically arranged, one end of the rotating shaft passes through the top of the stirring box and is rotatably connected to the stirring box through a bearing, a portion of the rotating shaft located in the stirring box is fixedly connected to a plurality of stirring rods, the stirring rods are evenly distributed on the rotating shaft, and a stirring box is also installed with A material pump, wherein a feed pipe and a discharge pipe are respectively connected to the material pump, the feed pipe and the discharge pipe are respectively connected to the inside of the mixing box, the connection between the feed pipe and the mixing box is located at the bottom of the side of the mixing box, the end of the discharge pipe away from the material pump passes through the side wall of the mixing box and extends into the mixing box, the end of the discharge pipe located in the mixing box is fixedly connected to a distribution plate, the distribution plate is hollow, the discharge pipe is connected to the inside of the distribution plate, and a plurality of nozzles are installed on the side of the distribution plate away from the discharge pipe.

[0006] Furthermore, a feed hopper is also provided on the top of the mixing box.

[0007] Furthermore, the first reactor is connected to the second reactor, the second reactor is connected to an oil-water separation tank, the oil-water separation tank is connected to the distillation tower, and the distillation tower is connected to the processing device.

[0008] Furthermore, a first conveying pipe is arranged between the first reactor and the second reactor.

[0009] Furthermore, a second delivery pipe is provided between the second reactor and the oil-water separation tank.

[0010] Furthermore, a third delivery pipe is provided between the oil-water separation tank and the distillation tower.

[0011] Furthermore, a fourth delivery pipe is connected between the distillation tower and the processing device.

[0012] Furthermore, a discharge pipe is connected to the bottom of the side of the mixing box, the discharge pipe is communicated with the interior of the mixing box, and a valve is installed on the discharge pipe.

[0013] By adopting the above technical solution, the beneficial effects of the utility model are:

[0014] The processing system for styrene tar provided by the utility model performs stirring and mixing by means of a stirring rod arranged on a rotating shaft, thereby agitating a mixture of styrene tar and blending raw materials; the material in the mixing box is stirred and processed by the stirring rod, and the material at the bottom of the mixing box enters the distribution plate through a feed pipe and a discharge pipe in sequence under the transportation of a material pump, and finally re-enters the mixing box through a plurality of nozzles, thereby performing stirring and mixing again in the stirring box, so that the mixture is mixed more evenly, thereby accelerating the processing progress of the styrene tar. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a system for treating styrene tar according to the utility model.

[0016] Figure 2 for Figure 1 A cross-sectional view of a treatment device in a treatment system for styrene tar is shown.

[0017] Figure numerals: 10, first reactor; 11, first delivery pipe; 20, second reactor; 21, second delivery pipe; 30, oil-water separation tank; 31, third delivery pipe; 40, distillation tower; 41, fourth delivery pipe; 50, processing device; 51, stirring box; 52, motor; 53, rotating shaft; 531, stirring rod; 54, material pump; 541, feed pipe; 542, discharge pipe; 543, distribution plate; 544, nozzle; 55, discharge pipe; 551, valve. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is now described in detail in conjunction with the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basics of the utility model in a schematic manner, so it only shows the structure related to the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] like Figure 1 As shown, the utility model provides a processing system for styrene tar, comprising a first reactor 10, a second reactor 20, an oil-water separation tank 30, a distillation tower 40 and a processing device 50. The first reactor 10 is connected to the second reactor 20, the second reactor 20 is connected to the oil-water separation tank 30, the oil-water separation tank 30 is connected to the distillation tower 40, and the distillation tower 40 is connected to the processing device 50.

[0020] like Figure 1 As shown, the first reactor 10 is used for reacting benzene and ethylene. Benzene and ethylene react in the first reactor 10 to generate ethylbenzene. A first conveying pipe 11 is arranged between the first reactor 10 and the second reactor 20. The ethylbenzene generated in the first reactor 10 is conveyed to the second reactor 20 through the first conveying pipe 11.

[0021] like Figure 1 As shown, the second reactor 20 is used for dehydrogenation reaction of ethylbenzene with steam. The ethylbenzene in the second reactor 20 undergoes dehydrogenation reaction under the action of the catalyst and the introduction of high-temperature steam. The dehydrogenation reaction of ethylbenzene produces a mixture containing a large amount of styrene, ethylbenzene and other organic substances. A second delivery pipe 21 is provided between the second reactor 20 and the oil-water separation tank 30. The second delivery pipe 21 is used to deliver the above-mentioned mixture produced by the dehydrogenation reaction in the second reactor 20 to the oil-water separation tank 30. The mixture delivered to the oil-water separation tank 30 undergoes oil-water separation under the action of the oil-water separation tank 30, thereby separating the organic mixture from water.

[0022] like Figure 1 As shown, a third delivery pipe 31 is provided between the oil-water separation tank 30 and the distillation tower 40. The third delivery pipe 31 is used to deliver the organic mixture separated by the oil-water separation tank 30 to the distillation tower 40. A fourth delivery pipe 41 is connected between the distillation tower 40 and the processing device 50. The organic mixture is distilled in the distillation tower 40 to obtain styrene and styrene tar. The styrene tar obtained by distillation is delivered to the processing device 50 through the fourth delivery pipe 41 for processing.

[0023] like Figure 2 As shown, the processing device 50 includes a mixing box 51, a motor 52 is fixedly installed on the top of the mixing box 51, a rotating shaft 53 is fixedly connected to the output shaft of the motor 52, the rotating shaft 53 is vertically arranged, one end of the rotating shaft 53 passes through the top of the mixing box 51 and is rotatably connected to the mixing box 51 through a bearing, a portion of the rotating shaft 53 located in the mixing box 51 is fixedly connected with a plurality of stirring rods 531, the stirring rods 531 are evenly distributed on the rotating shaft 53, and the mixture of styrene tar and blending raw materials is stirred and mixed by the stirring rods 531 arranged on the rotating shaft 53, thereby agitating.

[0024] like Figure 2 As shown, a feed hopper is also provided on the top of the mixing box 51. The feed hopper is generally in the shape of a funnel that is wide at the top and narrow at the bottom. This arrangement makes it easy to add blending raw materials, so that the blending raw materials and styrene tar are fully mixed to obtain carbon black raw materials or heavy fuel oil. A discharge pipe 55 is connected to the bottom of the side of the mixing box 51. The discharge pipe 55 is connected to the inside of the mixing box 51. A valve 551 is installed on the discharge pipe 55. The mixture that is fully stirred and mixed in the mixing box 51 is discharged through the discharge pipe 55, that is, the mixed carbon black raw material or heavy fuel oil is discharged through the discharge pipe.

[0025] like Figure 2 As shown, a material pump 54 is also installed on the mixing box 51, and a feed pipe 541 and a discharge pipe 542 are respectively connected to the material pump 54. The feed pipe 541 and the discharge pipe 542 are respectively connected to the mixing box 51, and the connection between the feed pipe 541 and the mixing box 51 is located at the bottom of the side of the mixing box 51.

[0026] One end of the discharge pipe 542 away from the material pump 54 passes through the side wall of the mixing box 51 and extends into the mixing box 51. One end of the discharge pipe 542 located in the mixing box 51 is fixedly connected to a distribution plate 543. The distribution plate 543 is hollow, and the discharge pipe 542 is communicated with the inside of the distribution plate 543. A plurality of nozzles 544 are installed on the side of the distribution plate 543 away from the discharge pipe 542. The material in the mixing box is stirred by the stirring rod 531, and the material at the bottom of the mixing box is transported by the material pump 54 and enters the distribution plate 543 in turn through the feed pipe 541 and the discharge pipe 542, and finally re-enters the mixing box through the plurality of nozzles 544, so as to be stirred and mixed again in the mixing box 51 to make the mixture more evenly mixed.

[0027] When the processing system for styrene tar provided by the utility model is used, the stirring rod 531 arranged on the rotating shaft 53 is used for stirring and mixing, thereby agitating the mixture of styrene tar and blending raw materials; the material in the mixing box is stirred by the stirring rod 531, and the material at the bottom of the mixing box is transported by the material pump 54 and enters the distribution plate 543 through the feed pipe 541 and the discharge pipe 542 in sequence, and finally re-enters the mixing box through the multiple nozzles 544, so as to be stirred and mixed again in the stirring box 51, so that the mixture is mixed more evenly, thereby accelerating the processing progress of styrene tar.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] It should be understood that the terms "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] The above is based on the ideal embodiment of the utility model. Through the above description, relevant staff can make various changes and modifications without departing from the scope of the utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A system for treating styrene tar, characterized in that: The invention comprises a first reactor, a second reactor, an oil-water separation tank, a distillation tower and a processing device, wherein the processing device comprises a stirring box, a motor is fixedly installed on the top of the stirring box, a rotating shaft is fixedly connected to the output shaft of the motor, the rotating shaft is vertically arranged, one end of the rotating shaft passes through the top of the stirring box and is rotatably connected to the stirring box through a bearing, a portion of the rotating shaft located in the stirring box is fixedly connected to a plurality of stirring rods, the stirring rods are evenly distributed on the rotating shaft, a material pump is also installed on the stirring box, a feed pipe and a discharge pipe are respectively connected to the material pump, the feed pipe and the discharge pipe are respectively connected to the inside of the stirring box, the connection between the feed pipe and the stirring box is located at the bottom of the side of the stirring box, one end of the discharge pipe away from the material pump passes through the side wall of the stirring box and extends into the stirring box, one end of the discharge pipe located in the stirring box is fixedly connected to a distribution plate, the distribution plate is hollow, the discharge pipe is connected to the inside of the distribution plate, and a plurality of nozzles are installed on the side of the distribution plate away from the discharge pipe.

2. A system for treating styrene tar according to claim 1, characterized in that: A feed hopper is also provided on the top of the mixing box.

3. A system for treating styrene tar according to claim 1, characterized in that: The first reactor is connected to the second reactor, the second reactor is connected to an oil-water separation tank, the oil-water separation tank is connected to the distillation tower, and the distillation tower is connected to the processing device.

4. A system for treating styrene tar according to claim 1, characterized in that: A first transport pipe is disposed between the first reactor and the second reactor.

5. A system for treating styrene tar according to claim 1, characterized in that: A second delivery pipe is arranged between the second reactor and the oil-water separation tank.

6. A system for treating styrene tar according to claim 1, characterized in that: A third delivery pipe is provided between the oil-water separation tank and the distillation tower.

7. A system for treating styrene tar according to claim 1, characterized in that: A fourth delivery pipe is connected between the distillation tower and the processing device.

8. A system for treating styrene tar according to claim 1, characterized in that: A discharge pipe is connected to the bottom of the side of the mixing box. The discharge pipe is communicated with the interior of the mixing box. A valve is installed on the discharge pipe.

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