Evaporation kettle

Abstract

The utility model belongs to the technical field of evaporation kettle devices, and discloses an evaporation kettle which comprises a kettle body and a bottom scraper stirring device, an upper seal head, a lower seal head and a heating jacket are arranged on the kettle body, and a central pipe is arranged at an opening of the upper seal head; the bottom scraper stirring device is located at the bottom of the kettle body and comprises a base, a stirring motor, a coupler, a stirring shaft, an impeller and a scraper. According to the evaporation kettle disclosed by the utility model, a rectifying tower can be directly seated on the evaporation kettle, so that the problem that the rectifying tower directly seated on the evaporation kettle conflicts with a stirring device is effectively solved; the stirring motor is arranged on a base on the ground, so that the stress of the kettle body is improved; the impeller improves the mixing efficiency, so that all the components are fully mixed; the scrapers avoid material deposition, the stirring efficiency is improved, stirring is more uniform, and the stirring quality of the device is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of evaporating kettle devices, in particular to an evaporating kettle. Background Art

[0002] During distillation, under intermittent operation conditions, a distillation tower with an evaporator is generally used, which can not only hold a large amount of liquid, but also save pipeline and investment costs. However, when the material is relatively viscous, a stirring device is required to prevent the material from depositing at the bottom of the kettle.

[0003] Conventional stirring devices are usually installed from the top of the evaporator, and the material is heated and vaporized by means of jackets, outer half pipes, etc., but it is difficult for the distillation tower to be placed on the evaporator. The existing technical solution is to solve the above problem by designing the distillation tower and the stirring motor to be non-concentric, but not only the required stirring shaft is very long, but also there will be more stringent requirements on the force of the head on the evaporator, and the weight of the entire device will be very large, and higher standards are required for the installation foundation, hanging ears, etc. Therefore, it is necessary to design an evaporator that can install the distillation tower on the top and can achieve bottom stirring. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an evaporating kettle. The technical solution adopted by the utility model is as follows:

[0005] An evaporating kettle comprises a kettle body and a bottom scraper stirring device, wherein the kettle body is provided with an upper head, a lower head and a heating jacket, and an inverted tapered central tube is provided at the opening of the upper head; the bottom scraper stirring device is located at the bottom of the kettle body, and comprises a base, a stirring motor, a coupling, a stirring shaft, an impeller and a scraper, wherein the base is provided with a stirring motor, the stirring motor is provided with a coupling, the coupling is fixedly connected to the stirring shaft, an impeller is provided at the upper part of the stirring shaft, a scraper is provided at the lower part of the stirring shaft, the impeller and the scraper are both fixedly connected to the stirring shaft, and the bottom edge of the scraper is matched with the curved surface of the lower head.

[0006] The utility model provides an evaporator, in which a heavy stirring motor is placed on a base on the ground, which can improve the stress of the upper head of the evaporator body, facilitate the arrangement and installation of the upper head pipe, and can also directly place the distillation tower on the evaporator, which saves installation space and increases the liquid holding capacity when distilling viscous materials; the device uses a bottom scraper stirring device, when the stirring is started, the impeller starts to rotate at a high speed, and the material is continuously turned, mixed and cut with the impeller, so that the material is evenly mixed, and the large centrifugal force generated by the mixing process of the impeller increases the impact force of the material, thereby improving the mixing efficiency, so that the various components can be fully mixed to meet the requirements of the process; the scraper has a scraping and stirring function, which can fully stir the viscous material, keep the feed pipe unobstructed, and is conducive to the discharge of the bottom of the container, greatly improving the efficiency of the mixer and reducing the energy consumption; the evaporator has a simple structure, good shaft stability, convenient maintenance and overhaul, is suitable for the mixing of various materials, can realize continuous production, has low energy consumption, and can greatly reduce production costs.

[0007] Furthermore, the distance between the scraper and the curved surface of the lower head is 20-30 mm.

[0008] The bottom edge of the scraper matches the inner curved surface of the lower head of the evaporator, and maintains a distance of 20-30mm from the curved surface of the head, which can scrape up the bottom material of the kettle to the greatest extent. The material moves upward along the scraper to form up and down stirring. At the same time, the continuous rotation of the stirring shaft will drive the material to stir horizontally, avoid material deposition, and improve the stirring quality of the device.

[0009] Furthermore, the scraper is provided with a plurality of through holes.

[0010] The scraper is provided with a plurality of through holes to reduce resistance and increase stirring efficiency.

[0011] Furthermore, the diameter of the through holes is 6-22 mm, and the spacing between the through holes is 28-32 mm.

[0012] Furthermore, a guide cap is provided at the top end of the stirring shaft.

[0013] The guide cap provided at the top of the stirring shaft can prevent solid particles and other residues from falling into the stirring system to cause wear, jamming and damage, and plays a role of sealing and guiding.

[0014] Furthermore, the bottom scraper stirring device also includes a bracket protection net to prevent foreign impurities from entering.

[0015] Furthermore, an ear-type support is provided on the outside of the kettle body to effectively support and fix it.

[0016] Furthermore, the upper head is a conical head.

[0017] Furthermore, the lower head is an elliptical lower head.

[0018] The utility model provides an evaporating kettle, which replaces the traditional evaporating kettle with top stirring, adopts a scraper stirring device at the bottom of the evaporating kettle, and a distillation tower can be directly placed on the evaporating kettle, which is convenient for taking over the upper head, saving installation space, reducing pipelines, increasing liquid holding capacity, saving investment, and effectively solving the problem that the distillation tower directly sitting on the evaporating kettle conflicts with the stirring device; the stirring motor is placed on a base on the ground, which improves the force of the kettle body; the centrifugal force generated by the impeller during the stirring and mixing process increases the impact force, improves the mixing efficiency, and fully mixes the components; the scraper is better fitted with the lower head to avoid material deposition; the scraper has evenly opened holes, which reduces the stirring resistance, increases the stirring efficiency, and makes the stirring more uniform; the scraper has a sweeping stirring function, which further improves the stirring quality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the evaporating kettle of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the bottom scraper stirring device of the utility model;

[0021] Figure 3 For this utility model Figure 2 Enlarged schematic diagram of the scraper at A;

[0022] Figure 4 It is a schematic diagram of the utility model in which the distillation tower is connected to the evaporation kettle.

[0023] Description of the markings in the figure:

[0024] 1. Kettle body; 2. Conical upper head; 3. Elliptical lower head; 4. Heating jacket; 5. Ear support; 6. Distillation tower; 7. Center tube; 8. Base; 9. Stirring motor; 10. Coupling; 11. Stirring shaft; 12. Impeller; 13. Scraper; 14. Guide cap; 15. Bracket protection net. DETAILED DESCRIPTION

[0025] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0026] Example:

[0027] like Figure 1-Figure 3As shown, an evaporating kettle comprises a kettle body 1 and a bottom scraper stirring device, wherein the kettle body 1 is provided with a conical upper head 2, an elliptical lower head 3 and a heating jacket 4, and an inverted conical central tube 7 is provided at the opening of the conical upper head 2, and the material to be processed can enter the evaporating kettle through the central tube 7, so as to ensure that the material to be processed falls from the center of the evaporating kettle. The bottom scraper stirring device is located at the bottom of the kettle body 1, and the bottom scraper stirring device includes a base 8, which is fixed to the ground. A stirring motor 9 is provided on the base 8, and the stirring motor 9 is provided with a coupling 10. The coupling 10 is fixedly connected to a stirring shaft 11, and the stirring shaft 11 is sealed to the elliptical lower head 3. An impeller 12 is provided at the upper part of the stirring shaft 11, and a scraper 13 is provided at the lower part of the stirring shaft 11. Both the impeller 12 and the scraper 13 are fixedly connected to the stirring shaft 11, and the bottom edge of the scraper 13 is matched with the curved surface of the elliptical lower head 3. The distance between the scraper 13 and the elliptical lower head 3 is 25 mm, which can scrape the kettle bottom material to the maximum extent, and the material moves upward along the scraper 13 to form up and down stirring. At the same time, the continuous rotation of the stirring shaft 11 will drive the material to stir horizontally, avoid material deposition, and improve the stirring quality of the device. The scraper 13 is provided with a plurality of through holes, the diameter of the through holes is 20 mm, and the spacing of the through holes is 30 mm. The holes can reduce resistance and increase stirring efficiency. A guide cap 14 is provided at the top of the stirring shaft 11 to prevent solid particles and other residues from falling into the stirring system, causing wear, jamming and damage, and plays a role in sealing and guiding. The bottom scraper stirring device also includes a bracket protection net 15 to prevent external impurities from entering. An ear-type support 5 is provided on the outside of the kettle body 1 to effectively play a supporting and fixing role.

[0028] The utility model provides an evaporator, wherein the bulky stirring motor 9 is placed on a base 8 on the ground, which can improve the force of the conical upper head 2 of the kettle body 1, facilitate the arrangement and installation of the conical upper head 2 pipe, and can also directly place the distillation tower 6 on the evaporator. Figure 4As shown, when the viscous material is distilled, the installation space is saved, the liquid holding capacity is increased, and the problem of the distillation tower 6 sitting directly on the evaporator and conflicting with the stirring device is effectively solved. The device uses a bottom scraper stirring device. When the stirring is started, the impeller 12 starts to rotate at a high speed, and the material is constantly turned, mixed and cut with the impeller 12, so that the material is evenly mixed. The large centrifugal force generated by the mixing process of the impeller 12 increases the impact force of the material, thereby improving the mixing efficiency, so that the components are fully mixed to meet the requirements of the process; the scraper 13 has a scraping and stirring function, which can fully stir the viscous material, keep the feed pipe unobstructed, and is conducive to the discharge of the bottom of the container, greatly improving the efficiency of the mixer and reducing energy consumption; the evaporator has a simple structure, good shaft stability, convenient maintenance and overhaul, suitable for the mixing of various materials, can achieve continuous production, low energy consumption, and can greatly reduce production costs.

[0029] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An evaporating kettle, characterized in that: It comprises a kettle body and a bottom scraper stirring device, wherein the kettle body is provided with an upper head, a lower head and a heating jacket, and an inverted cone-shaped central tube is provided at the opening of the upper head; the bottom scraper stirring device is located at the bottom of the kettle body, and comprises a base, a stirring motor, a coupling, a stirring shaft, an impeller and a scraper, the base is provided with a stirring motor, the stirring motor is provided with a coupling, the coupling is fixedly connected to the stirring shaft, an impeller is provided at the upper part of the stirring shaft, a scraper is provided at the lower part of the stirring shaft, the impeller and the scraper are both fixedly connected to the stirring shaft, and the bottom edge of the scraper is matched with the curved surface of the lower head.

2. The evaporating kettle according to claim 1, characterized in that: The distance between the scraper and the lower head is 20-30 mm.

3. The evaporating kettle according to claim 1, characterized in that: The scraper is provided with a plurality of through holes.

4. The evaporating kettle according to claim 3, characterized in that: The diameter of the through holes is 6-22 mm, and the spacing between the through holes is 28-32 mm.

5. The evaporating kettle according to claim 1, characterized in that: A flow guide cap is arranged on the top end of the stirring shaft.

6. The evaporating kettle according to claim 1, characterized in that: The bottom scraper stirring device also includes a support protection net.

7. The evaporating kettle according to claim 1, characterized in that: An ear-type support is arranged on the outer side of the kettle body.

8. The evaporating kettle according to claim 1, characterized in that: The upper sealing head is a conical sealing head.

9. The evaporating kettle according to claim 1, characterized in that: The lower head is an elliptical lower head.

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