Liquid pet high-efficiency dispersion feeding device

Abstract

The utility model discloses a kind of liquid PET high-efficiency dispersing feeding devices, including pre-solution kettle, the pre-solution kettle top is connected with feed pipe, the feed pipe one end is connected with material pipe, the pre-solution kettle top is connected with stirring assembly, the feed pipe discharge port is opposite above stirring assembly, the pre-solution kettle top is connected with reflux assembly for processing gaseous octanol. The utility model liquid PET is conveyed to feed pipe by material pipe, and is discharged to pre-solution kettle by feed pipe, and is mixed with boiling octanol, the discharge port of feed pipe is located at the upper end of stirring assembly, octanol is agitated with just falling liquid PET, reach the effect of fast dispersion, miscible, avoid that liquid PET is solidified in octanol and forms large particle, realizes that liquid PET directly feeds.

Description

Technical Field

[0001] This utility model relates to the field of chemical production, specifically a high-efficiency dispersing and feeding device for liquid PET. Background Technology

[0002] In the field of PET processing, the feeding and dispersion of liquid PET are key steps that affect subsequent production efficiency and product quality.

[0003] In the industry, most traditional waste PET used for plasticizer production adopts solid feeding. When it enters the octanol system, if it cannot be quickly and uniformly mixed with octanol, it is very easy to solidify in the system, forming solid particles of different sizes. These solid particles are not only difficult to dissolve or disperse, but also adhere to the inner wall of the container and the surface of the stirring parts. This not only affects the overall mixing effect of the system, but also increases the difficulty of subsequent cleaning and adversely affects the continuity of production. In addition, the melting of solid feeding is energy-intensive and costly, and the reaction is slow. Therefore, it is necessary to design a liquid PET high-efficiency dispersion feeding device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency dispersing and feeding device for liquid PET to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency dispersion and feeding device for liquid PET, comprising a pre-dissolving tank, wherein a feed pipe is connected to the top of the pre-dissolving tank, and a material pipe is connected to one end of the feed pipe; The top of the pre-dissolving kettle is connected to a stirring assembly, the outlet of the feed pipe faces the top of the stirring assembly, and the top of the pre-dissolving kettle is connected to a reflux assembly for processing gaseous octanol.

[0006] Preferably, the material pipe has a heat-tracing oil pipe for heating liquid PET and maintaining its state.

[0007] Preferably, the bottom of the pre-dissolving kettle is connected to a discharge pipe for discharging materials.

[0008] Preferably, the stirring assembly includes a motor, which is fixedly installed on the top of the pre-dissolving tank, and a stirring rod is fixedly installed on the output end of the motor, with a plurality of stirring blades fixedly installed on the outside of the stirring rod.

[0009] Preferably, the reflux assembly includes a condenser and a reflux tank, the top of the pre-dissolving kettle is connected to the condenser via a pipe, the condenser is connected to the reflux tank via a pipe, and one side of the reflux tank is connected to the top of the pre-dissolving kettle via a pipe.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This high-efficiency liquid PET dispersion and feeding device delivers liquid PET through a material pipe to the feed pipe and then discharges it into a pre-dissolving kettle, where it mixes with boiling octanol. The outlet of the feed pipe is located at the top of the stirring blade. Turning on the motor switches drives the stirring rod and stirring blade to rotate, agitating the octanol and the freshly dropped liquid PET, achieving rapid dispersion and mixing. This avoids the liquid PET solidifying in the octanol to form large particles, enabling direct feeding of liquid PET. It eliminates the need for cooling and crushing the liquid PET before feeding. The heat of the liquid PET itself is directly recovered, improving energy utilization. Furthermore, the liquid PET and octanol are miscible, achieving a liquid-liquid reaction with a reaction rate far higher than that of the solid-liquid reaction in existing technologies.

[0011] 2. In this high-efficiency liquid PET dispersion feeding device, the octanol vaporized at high temperature during liquid PET feeding is condensed by the condenser and then returned to the pre-dissolving kettle by the reflux tank, which avoids system overpressure and can improve the utilization efficiency of raw materials. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the pre-dissolving kettle structure of this utility model.

[0013] In the diagram: 1. Pre-melting kettle; 2. Feed pipe; 3. Material pipe; 4. Discharge pipe; 5. Motor; 6. Stirring rod; 7. Stirring blade; 8. Condenser; 9. Reflux tank. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example 1 Please refer to Figure 1-2 As shown, this utility model provides a high-efficiency dispersion and feeding device for liquid PET, including a pre-dissolving kettle 1, a feed pipe 2 connected to the top of the pre-dissolving kettle 1, and a material pipe 3 connected to one end of the feed pipe 2; The top of the pre-dissolving vessel 1 is connected to a stirring assembly, the outlet of the feed pipe 2 faces the top of the stirring assembly, and the top of the pre-dissolving vessel 1 is connected to a reflux assembly for processing gaseous octanol.

[0016] Specifically, liquid PET is conveyed through material pipe 3 to feed pipe 2 and discharged through feed pipe 2 into pre-dissolving kettle 1, where it mixes with boiling octanol. The outlet of feed pipe 2 is located at the top of the stirring component, which stirs the octanol and the freshly fallen liquid PET to achieve rapid dispersion and mixing, thus preventing the liquid PET from solidifying in the octanol and forming large particles, and realizing direct feeding of liquid PET.

[0017] Among them: the material pipe 3 has a heat-tracing pipe for heat-conducting oil, which is used to heat the liquid PET and maintain its state; the bottom of the pre-dissolving kettle 1 is connected to the discharge pipe 4 for discharging the material, thereby discharging the reactants from the pre-dissolving kettle 1.

[0018] The stirring assembly includes a motor 5, which is fixedly installed on the top of the pre-melting kettle 1. A stirring rod 6 is fixedly installed at the output end of the motor 5, and several stirring blades 7 are fixedly installed on the outside of the stirring rod 6. When the motor 5 is turned on, the stirring rod 6 is driven to rotate, and the stirring rod 6 can drive the stirring blades 7 to rotate, thereby performing high-shear stirring.

[0019] The reflux assembly includes a condenser 8 and a reflux tank 9. The top of the pre-dissolving kettle 1 is connected to the condenser 8 via a pipe, and the condenser 8 is connected to the reflux tank 9 via a pipe. One side of the reflux tank 9 is connected to the top of the pre-dissolving kettle 1 via a pipe. When liquid PET is fed, the octanol that is vaporized at high temperature is condensed by the condenser 8 and then refluxed back to the pre-dissolving kettle by the reflux tank 9, which avoids system overpressure and can improve the utilization efficiency of raw materials.

[0020] Working principle: This utility model is a high-efficiency dispersion and feeding device for liquid PET. Liquid PET is transported to the feed pipe 2 through the material pipe 3 and discharged into the pre-dissolving kettle 1 through the feed pipe 2, where it mixes with boiling octanol. The outlet of the feed pipe 2 is located at the upper end of the stirring blade 7. When the motor 5 is turned on, the stirring rod 6 and the stirring blade 7 are rotated, stirring the octanol and the freshly dropped liquid PET to achieve rapid dispersion and mixing. This avoids the liquid PET from solidifying in the octanol to form large particles, and realizes direct feeding of liquid PET. It eliminates the need for the liquid PET to be cooled and crushed before feeding. The heat of the liquid PET itself is directly recovered, improving the energy utilization rate. Moreover, after the liquid PET and octanol are miscible, a liquid-liquid reaction is achieved, and the reaction rate is much higher than the solid-liquid reaction of the existing technology. When liquid PET is fed, the octanol that is vaporized at high temperature is condensed by condenser 8 and then returned to the pre-dissolving kettle by reflux tank 9, which avoids system overpressure and can improve the utilization efficiency of raw materials.

[0021] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency dispersing and feeding device for liquid PET, comprising a pre-dissolving tank (1), characterized in that: The top of the pre-melting kettle (1) is connected to a feed pipe (2), and one end of the feed pipe (2) is connected to a material pipe (3). The top of the pre-dissolving vessel (1) is connected to a stirring assembly, the outlet of the feed pipe (2) faces the top of the stirring assembly, and the top of the pre-dissolving vessel (1) is connected to a reflux assembly for processing gaseous octanol.

2. The liquid PET high-efficiency dispersion and feeding device according to claim 1, characterized in that: The material pipe (3) has a heat-tracing pipe for heat-conducting oil, used to heat liquid PET and maintain its state.

3. The liquid PET high-efficiency dispersion and feeding device according to claim 1, characterized in that: The bottom of the pre-melting kettle (1) is connected to a discharge pipe (4) for discharging materials.

4. The liquid PET high-efficiency dispersion and feeding device according to claim 1, characterized in that: The stirring assembly includes a motor (5), which is fixedly installed on the top of the pre-dissolving kettle (1). A stirring rod (6) is fixedly installed at the output end of the motor (5), and several stirring blades (7) are fixedly installed on the outside of the stirring rod (6).

5. The liquid PET high-efficiency dispersion and feeding device according to claim 1, characterized in that: The reflux assembly includes a condenser (8) and a reflux tank (9). The top of the pre-dissolving kettle (1) is connected to the condenser (8) via a pipe. The condenser (8) is connected to the reflux tank (9) via a pipe. One side of the reflux tank (9) is connected to the top of the pre-dissolving kettle (1) via a pipe.

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