Processing device for polyester polyol production

Abstract

The utility model discloses a processing device for polyester polyol production, which belongs to the technical field of polyester polyol processing and comprises a stirring bin, a material injection pipe inserted into the upper end of the stirring bin, a stirring mechanism arranged in the middle of the stirring bin, a processing mechanism arranged on the inner side of the stirring bin, and a heat preservation cotton layer arranged on the inner side of the stirring bin. According to the processing device for polyester polyol production, the processing mechanism and the stirring mechanism are additionally arranged, the processing mechanism is of a wrapping type heating structure and a smooth inner wall structure, polyester polyol in the round tank body can be effectively and uniformly heated, the effect of heating and softening the polyester polyol can be achieved, the processing efficiency is improved, and the production cost is reduced. The viscosity of the polyester polyol is reduced, the polyester polyol with higher fluidity is obtained, the probability that the polyester polyol is adhered to the inner wall of the device is effectively reduced, the stirring mechanism can conveniently stir the polyester polyol, the uniform stirring effect can be realized, and the viscous polyester polyol is prevented from influencing the stirring operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of polyester polyol processing technology, and specifically relates to a processing device for polyester polyol production. BACKGROUND

[0002] Polyester polyol is an important organic compound, which is usually prepared by condensation reaction (or ester exchange reaction) of polycarboxylic acid (which can be its anhydride or ester) and polyol. In the chemical reaction process, the hydroxyl groups of polycarboxylic acid and polyol condense to generate water molecules, thereby forming a long-chain polyester structure and retaining multiple hydroxyl groups for subsequent reactions. In the synthesis of polyurethane materials, polyester polyol plays a key role. As a flexible soft segment in the molecular structure of polyurethane, it has an important influence on the physical properties of the material, such as elasticity, tear resistance and wear resistance. The ester groups in polyester polyol endow polyurethane with excellent mechanical properties and bonding properties.

[0003] In combination with the polyester polyol production device in the prior art, it is found that the device cannot effectively mix the polyester polyol during application, especially when some of the polyester polyol is in a viscous state. The polyester polyol in a viscous state cannot be effectively stirred. However, most of the existing processing devices do not have heating function, and the uniformity of the devices with heating function is low, and the heating effect is poor. In addition, the polyester polyol with high viscosity may stick to the processing device, affecting the subsequent use of the device. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a processing device for polyester polyol production to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a processing device for polyester polyol production, comprising a stirring bin, a feeding pipe is inserted at the upper end of the stirring bin, a stirring mechanism is arranged at the middle part of the stirring bin, a processing mechanism is arranged at the inner side of the stirring bin, the processing mechanism comprises a round tank body, a thermal insulation cotton layer and a heating groove, the inner side of the thermal insulation cotton layer is provided with the round tank body, and the heating groove is arranged between the round tank body and the thermal insulation cotton layer.

[0006] Optionally, the processing mechanism further comprises a water injection pipe, a drain pipe, a liquid transmission copper pipe, a round wall bottom bin and an external discharge pipe, and the water injection pipe and the drain pipe are fixedly inserted on the outer wall of the stirring bin.

[0007] Optionally, the inner side of the heating groove is provided with a liquid transmission copper pipe, and the liquid transmission copper pipe is distributed on the inner side of the heating groove from top to bottom.

[0008] Optionally, the upper end of the liquid transmission copper pipe is communicated with the water injection pipe, and the lower end of the liquid transmission copper pipe is communicated with the drain pipe.

[0009] Optionally, a circular wall bottom compartment is fixedly installed at the lower end of the cylindrical tank, and an external drain pipe is fixedly installed at the middle of the lower end of the circular wall bottom compartment.

[0010] Optionally, the stirring mechanism includes a motor bracket, a drive motor, a drive rod, and stirring blades, with the motor bracket fixedly installed on the outer wall of the stirring chamber.

[0011] Optionally, a drive motor is fixedly mounted on the motor bracket, and a drive rod is mounted on the transmission end of the drive motor.

[0012] Optionally, stirring blades are fixedly installed on the outer wall of the drive rod, and multiple sets of stirring blades are distributed on the drive rod from top to bottom.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention includes a processing mechanism and a stirring mechanism. The processing mechanism's enclosed heating structure ensures uniform heating of the polyester polyol within the cylindrical tank, avoiding the problems of localized overheating or uneven heating that may occur in traditional heating methods. This ensures uniform heating of the polyester polyol throughout the processing. The combination of the liquid transfer copper pipe and the hot water circulation system, along with the insulation cotton layer, effectively reduces heat loss, improves heat transfer efficiency, and shortens heating time, thereby enhancing overall production efficiency. The smooth inner wall design of the cylindrical tank reduces the probability of polyester polyol adhering to the inner wall during heating, ensuring equipment cleanliness and production efficiency. The stirring mechanism, through effective stirring with the stirring blades and in conjunction with the heating function of the processing mechanism, overcomes the resistance of viscous substances more easily due to the reduced viscosity of the heated polyester polyol. This reduces the impact of viscosity on the stirring effect, achieving uniform mixing of the polyester polyol, avoiding uneven component distribution, and improving the quality of the final product. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional top view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of this utility model from a frontal view.

[0018] Figure 4 This is a three-dimensional sectional view of the structure of this utility model. Figure 1 ;

[0019] Figure 5 This is a three-dimensional sectional view of the structure of this utility model. Figure 2 .

[0020] In the figure: 1, stirring bin; 2, feeding pipe; 3, processing mechanism; 301, round tank body; 302, heat preservation cotton layer; 303, heating groove; 304, water injection pipe; 305, drain pipe; 306, liquid transmission copper pipe; 307, round wall bottom bin; 308, outer discharge pipe; 4, stirring mechanism; 401, motor support; 402, driving motor; 403, driving rod; 404, stirring blade. DETAILED DESCRIPTION

[0021] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0022] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood by specific circumstances.

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in the following description of the embodiments of the present application, obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary skilled in the art without creative labor are within the scope of protection of the present application.

[0024] Please refer to Figures 1-5The utility model discloses an embodiment of a kind of processing device for polyester polyol production, including stirring bin 1, the upper end of stirring bin 1 is inserted with injection pipe 2, the middle part of stirring bin 1 is provided with stirring mechanism 4, the inside of stirring bin 1 is provided with processing mechanism 3, processing mechanism 3 includes round jar body 301, thermal cotton layer 302 and heating groove 303, the inside of stirring bin 1 is provided with thermal cotton layer 302, the inside of thermal cotton layer 302 is provided with round jar body 301, heating groove 303 is arranged between round jar body 301 and thermal cotton layer 302, processing mechanism 3 further includes water injection pipe 304, drain pipe 305, liquid transmission copper pipe 306, round wall bottom bin 307 and outer discharge pipe 308, water injection pipe 304 and drain pipe 305 are fixedly inserted on the outer wall of stirring bin 1, the inside of heating groove 303 is provided with liquid transmission copper pipe 306, liquid transmission copper pipe 306 is distributed from top to bottom in the inside of heating groove 303, the upper end of liquid transmission copper pipe 306 is communicated with water injection pipe 304, the lower end of liquid transmission copper pipe 306 is communicated with drain pipe 305, the lower end of round jar body 301 is fixedly installed with round wall bottom bin 307, the middle part of the lower end of round wall bottom bin 307 is fixedly installed with outer discharge pipe 308;

[0025] Round jar body 301 provides enough volume to accommodate polyester polyol to be processed, the smooth inner wall of round jar body 301 reduces the adhesion of polyester polyol, facilitating cleaning and maintenance, thermal cotton layer 302 effectively reduces heat loss, maintains the temperature stability of round jar body 301, and improves heating efficiency, heating groove 303 ensures effective heat transfer, and is used in cooperation with thermal cotton layer 302; water injection pipe 304 is communicated with external hot water pipe, which can conveniently introduce hot water to provide heat source for heating, drain pipe 305 is used for discharging hot water after passing through liquid transmission copper pipe 306, facilitating the recycling of hot water and the treatment of wastewater, liquid transmission copper pipe 306 ensures that hot water can flow uniformly from top to bottom, at the same time, the good thermal conductivity of copper pipe accelerates heat transfer and improves heating efficiency; round wall bottom bin 307 facilitates the storage and discharge of polyester polyol, the smooth inner wall reduces the adhesion of polyester polyol, outer discharge pipe 308 is connected with the rounded corner treatment of round jar body 301, reducing the resistance of material during discharge, and also reducing the adhesion of polyester polyol in the pipe;

[0026] The stirring mechanism 4 comprises a motor support 401, a driving motor 402, a driving rod 403 and stirring blade plates 404, the motor support 401 is fixedly installed on the outer wall of the stirring bin 1, the driving motor 402 is fixedly installed on the motor support 401, the driving rod 403 is installed on the transmission end of the driving motor 402, the stirring blade plates 404 are fixedly installed on the outer wall of the driving rod 403, and a plurality of groups of stirring blade plates 404 are distributed on the driving rod 403 from top to bottom; the motor support 401 provides stable support for the driving motor 402, thereby guaranteeing the stability and safety of the stirring mechanism 4 during operation, the driving motor 402 provides power to drive the stirring blade plates 404 to stir, and the driving rod 403 connects the driving motor 402 and the stirring blade plates 404, thereby effectively transmitting power and ensuring the normal rotation of the stirring blade plates 404.

[0027] The working principle of the utility model is: the polyester polyol production processing device is additionally provided with a processing mechanism 3 and a stirring mechanism 4, before using the polyester polyol production processing device, the driving motor 402 needs to be connected to electricity and connected to a control terminal, the water injection pipe 304 is connected in communication with an external hot water pipe, and the drain pipe 305 is connected in communication with an external recovery pipe, when using the polyester polyol production processing device, first, the polyester polyol raw material to be processed is injected into the inside of the round tank body 301 through the charging pipe 2, the processing mechanism 3 is started at random, hot water is injected into the liquid transmission copper pipe 306 through the external hot water pipe and the water injection pipe 304, the hot water is transmitted from top to bottom along the liquid transmission copper pipe 306 and discharged to the external recovery pipe through the drain pipe 305, when the hot water passes through the liquid transmission copper pipe 306, heat is evenly dispersed into the heating tank 303, and is used in cooperation with the heat preservation cotton layer 302, so that the heat in the heating tank 303 is rapidly increased, thereby achieving the effect of uniformly heating the round tank body 301, the polyester polyol raw material in the round tank body 301 is effectively heated, at the same time, the driving motor 402 drives the driving rod 403 and the stirring blade plates 404 to rotate, so that the polyester polyol raw material uniformly heated can be rapidly stirred, the effect of rapidly stirring the polyester polyol raw material is realized, the flowability of the polyester polyol raw material heated is improved, the round tank body 301 and the round wall bottom bin 307 all adopt smooth inner walls, and the junction of the external discharge pipe 308 and the round tank body 301 also adopts a round corner treatment, so that the probability that the polyester polyol is adhered to the inner wall of the round tank body 301 is effectively reduced; in summary, the processing mechanism 3 adopts a wrapping type heating structure and a smooth inner wall structure, can effectively uniformly heat the polyester polyol in the inside of the round tank body 301, can realize the effect of softening the polyester polyol by increasing the temperature, can reduce the viscosity of the polyester polyol, can obtain polyester polyol with higher flowability, can effectively reduce the probability that the polyester polyol is adhered to the inner wall of the device, and can also facilitate the stirring mechanism 4 to stir the polyester polyol, can realize the effect of uniform stirring, and can avoid the influence of the viscous polyester polyol on the stirring operation.

[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A processing device for polyester polyol production, comprising a stirring bin (1), an injection pipe (2) is inserted into the upper end of the stirring bin (1), characterized in that: The middle part of the stirring bin (1) is provided with a stirring mechanism (4), the inner side of the stirring bin (1) is provided with a processing mechanism (3), the processing mechanism (3) comprises a round tank body (301), a heat preservation cotton layer (302) and a heating groove (303), the inner side of the stirring bin (1) is provided with the heat preservation cotton layer (302), the inner side of the heat preservation cotton layer (302) is provided with the round tank body (301), and the heating groove (303) is arranged between the round tank body (301) and the heat preservation cotton layer (302).

2. The processing device for producing a polyester polyol according to claim 1, characterized by: The processing mechanism (3) further comprises a water injection pipe (304), a drain pipe (305), a liquid conveying copper pipe (306), a round wall bottom bin (307) and an outer discharge pipe (308), and the water injection pipe (304) and the drain pipe (305) are fixedly inserted on the outer wall of the stirring bin (1).

3. The processing device for producing a polyester polyol according to claim 2, characterized by: The inner side of the heating groove (303) is provided with the liquid conveying copper pipe (306), and the liquid conveying copper pipe (306) is distributed on the inner side of the heating groove (303) from top to bottom.

4. The processing device for producing a polyester polyol according to claim 3, characterized by: The upper end of the liquid conveying copper pipe (306) is communicated with the water injection pipe (304), and the lower end of the liquid conveying copper pipe (306) is communicated with the drain pipe (305).

5. The processing device for producing a polyester polyol according to claim 1, characterized by: The lower end of the round tank body (301) is fixedly installed with the round wall bottom bin (307), and the outer discharge pipe (308) is fixedly installed at the middle part of the lower end of the round wall bottom bin (307).

6. The processing device for producing a polyester polyol according to claim 1, characterized by: The stirring mechanism (4) comprises a motor support (401), a driving motor (402), a driving rod (403) and a stirring blade plate (404), and the motor support (401) is fixedly installed on the outer wall of the stirring bin (1).

7. The processing device for producing polyester polyol according to claim 6, characterized in that: The driving motor (402) is fixedly installed on the motor support (401), and the transmission end of the driving motor (402) is provided with the driving rod (403).

8. The processing device for producing a polyester polyol according to claim 7, characterized by: The outer wall of the driving rod (403) is fixedly installed with the stirring blade plate (404), and a plurality of groups of the stirring blade plate (404) are distributed on the driving rod (403) from top to bottom.

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