Multi-scraper drum-type chemical evaporator

Abstract

The utility model relates to the technical field of evaporators, in particular to a multi-scraper drum-type chemical evaporator, which comprises a base, an evaporator body is fixedly mounted at the top of the base, a material turning frame is rotatably mounted in the evaporator body, the evaporator body comprises a heating cylinder, and the heating cylinder is fixedly mounted on the base. The front end of the heating cylinder is of an open structure design and is fixedly provided with an access cover, and the upper end face of the heating cylinder is slotted and is provided with a material injection groove in a communicating mode. The material turning frame comprises a rotating frame, a first scraping plate and a second scraping plate are fixedly installed on the outer side of the rotating frame, the first scraping plate and the second scraping plate are fixedly installed on the outer side of the rotating frame in a staggered mode, the side, away from the rotating frame, of the first scraping plate is concave inwards, and the side, away from the rotating frame, of the second scraping plate is convex outwards. The device solves the problem that in the prior art, when the device is used, after the liquid level is lowered, the device is prone to being damaged under the condition of long-time dry burning.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to a multi-scraper drum type chemical evaporator. Background Art

[0002] Scraped-surface evaporators, also known as scraped-surface concentrators, are widely used across various industries, particularly in the petroleum, chemical, and pharmaceutical sectors. They are particularly well-suited for processes requiring solid-liquid separation from highly concentrated materials. Through their unique design, scraped-surface evaporators effectively improve separation efficiency, meeting the high-efficiency and high-purity demands of these industries.

[0003] After extensive searching, the publication number CN214158556U was found, which disclosed a scraper evaporator. The reactant contact surfaces were provided with a graphite layer to better protect the reactor; a lower fixing device was provided at the bottom to make the stirring shaft more stable.

[0004] When the device in the existing technology is in use, the medium in the circulation cavity is used to heat the cylinder. During this process, the liquid in the inner cavity can be in a heated state. However, since the circulation cavity is designed to surround the inner cavity and the cylinder is placed vertically, the inner cavity is heated all around. After the liquid level drops, the heating medium continues to heat, which causes the upper part of the inner wall of the cylinder to be in a dry burning state. If dry burning for a long time, it will cause damage to the cylinder. Therefore, a multi-scraper drum chemical evaporator is needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-scraper drum chemical evaporator, which has the advantage of lower liquid level requirements during heating operation, and solves the problem in the prior art that the device itself is easily damaged due to long-term dry burning after the liquid level is lowered during use.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a multi-scraper drum chemical evaporator, comprising a base, an evaporator body fixedly mounted on the top of the base, a material turning rack rotatably mounted inside the evaporator body, the evaporator body comprising a heating cylinder, the front end of the heating cylinder adopts an open structure design and is fixedly mounted with an inspection cover, the upper end surface of the heating cylinder is grooved and connected to a filling slot;

[0007] The tipping rack includes a rotating rack, and a first scraper and a second scraper are fixedly installed on the outside of the rotating rack. The first scraper and the second scraper are fixedly installed on the outside of the rotating rack in an alternating manner. The first scraper is concave inward on the side away from the rotating rack, and the second scraper is convex outward on the side away from the rotating rack.

[0008] Preferably, the base has a fixed heater mounted inside, and a controller embedded in the front of the heater. The design integrates the heater within the base, while the controller is embedded in the front of the heater. This integrated design not only simplifies the appearance of the device but also allows the operator to intuitively control the heating process, ensuring ease and safety. The integrated heater and controller design makes the device layout more compact and the user interface intuitive, making it easy to monitor and adjust the heating process.

[0009] Preferably, the heater's top is equipped with heating tubes in a rectangular array, with the tops of the tubes passing through the outer wall of the heating cylinder and aligned with the inner wall. This design arranges the heating tubes in a rectangular array at the top of the heater, with the tops of these tubes passing through the outer wall of the heating cylinder and aligned with the inner wall. This precise arrangement ensures uniform heating, thereby improving thermal efficiency and evaporation quality. The evenly distributed heating tubes ensure comprehensive heating of the inner wall of the heating cylinder, avoiding local overheating and enhancing evaporation efficiency and product quality.

[0010] Preferably, the front end of the lower end face of the heating cylinder is slotted and connected to a discharge pipe, with a flap valve fixedly mounted at the bottom end of the discharge pipe. In this design, a slot is provided at the front end of the lower end face of the heating cylinder, connecting to the discharge pipe. A flap valve is fixedly mounted at the bottom end of the discharge pipe. This design allows for precise control of material flow during discharge, preventing backflow of material and the ingress of air, ensuring a clean and efficient discharge process. The flap valve provides a good seal during discharge, preventing backflow of material and the ingress of air, ensuring a smooth and hygienic discharge process.

[0011] Preferably, the inspection cover is fixed to the front end of the heating cylinder with mounting bolts. The inspection cover adopts an annular structure with tempered glass embedded inside. This design not only ensures the sealing of the equipment but also allows the operator to visually observe the internal evaporation conditions without opening the cylinder. The design of the inspection cover provides a safe observation window, allowing the operator to easily check the internal status of the evaporator while ensuring the sealing and safety of the equipment.

[0012] Preferably, a mounting bracket is rotatably mounted on the front end of the rotating frame, and the outer side of the mounting bracket is fixedly connected to the inner wall of the heating tube. The rear end of the rotating frame passes through the heating tube and is transmission-mounted with a drive motor, which is fixedly mounted on the rear end of the outer wall of the heating tube. The drive motor adopts a forward and reverse AC motor structure design. In the design, the front end of the rotating frame is rotationally mounted with a mounting bracket, which is fixedly connected to the inner wall of the heating tube, and the rear end of the rotating frame passes through the heating tube and is transmission-mounted with a drive motor. The drive motor is fixed at the rear end of the outer wall of the heating tube and adopts a forward and reverse AC motor structure design. This design enables the tipping frame to operate stably and facilitates forward and reverse operations to adapt to different process requirements. The forward and reverse design of the drive motor provides greater operational flexibility, so that the tipping frame can perform forward and reverse operations according to process requirements, thereby improving the adaptability of the equipment and the convenience of operation.

[0013] Preferably, the injection trough includes a feed trough, which has a trumpet-shaped structure and a hopper mounted on top. The injection trough includes a feed trough, which has a trumpet-shaped structure and a hopper mounted on top. This structural design facilitates smooth material addition while reducing splashing and loss during the addition process. The trumpet-shaped feed trough design allows material to flow more smoothly into the evaporator, reducing material loss during the addition process and improving feeding efficiency and safety.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] In the present invention, a first scraper and a second scraper are mounted on the turning frame within the evaporator body. These scrapers are staggered and fixed to the outside of the rotating frame. The first scraper is recessed on the side facing away from the rotating frame, while the second scraper is raised on the side facing away from the rotating frame. This design allows the scrapers to continuously turn the material as it rotates, ensuring full contact between the material and the inner wall of the heating tube, allowing for effective heat exchange and evaporation even at low liquid levels. A heater is fixedly mounted on the inner side of the base, with a controller embedded in the front of the heater. A rectangular array of heating tubes is arranged on the top of the heater, with the tops of the heating tubes passing through the outer wall of the heating tube and flush with the inner wall. This design ensures uniform heating, thereby improving thermal efficiency and evaporation quality. The evenly distributed heating tubes ensure comprehensive heating of the inner wall of the heating tube, avoiding local overheating and enhancing evaporation efficiency and product quality. The front end of the lower end of the heating tube is slotted and connected to a discharge pipe, with a flap valve fixed to the bottom of the discharge pipe. This design allows for precise control of the flow of materials during discharge, preventing backflow of materials or ingress of air, and ensuring a clean and efficient discharge process. The flap valve setting provides good sealing during discharge, preventing backflow of materials and ingress of air, ensuring a smooth and hygienic discharge process. The required heating temperature and time can be set through the controller to precisely control the heating process. During the evaporation process, monitor the evaporation situation to ensure that the material is evenly distributed in the heating cylinder to avoid local overheating or uneven drying. Adjust the heating temperature and the speed of the flip rack as needed to control the evaporation rate, thereby reducing the risk of dry burning due to lowered liquid levels. Through the above design, the multi-scraper drum chemical evaporator can maintain effective evaporation efficiency even when the liquid level is low, while avoiding equipment damage caused by dry burning and improving the safety and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the evaporator body structure of the utility model;

[0019] Figure 4 This is a structural schematic diagram of the tipping rack of the present utility model.

[0020] In the figure: 1. Evaporator body; 11. Heating cylinder; 12. Filling trough; 121. Feeding trough; 122. Feeding hopper; 13. Mounting frame; 14. Inspection cover; 15. Flap valve; 16. Driving motor; 17. Discharge pipe; 2. Base; 21. Heater; 211. Controller; 3. Flipping frame; 31. Rotating frame; 311. First scraper; 312. Second scraper. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1

[0023] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the utility model provides an embodiment: a multi-scraper drum chemical evaporator, including a base 2, an evaporator body 1 is fixedly installed on the top of the base 2, a turning rack 3 is rotatably installed in the evaporator body 1, the evaporator body 1 includes a heating cylinder 11, the front end of the heating cylinder 11 adopts an open structure design and is fixedly installed with an inspection cover 14, the upper end surface of the heating cylinder 11 is grooved and connected to a filling slot 12;

[0024] The turning rack 3 includes a rotating rack 31, and a first scraper 311 and a second scraper 312 are fixedly installed on the outside of the rotating rack 31. The first scraper 311 and the second scraper 312 are fixedly installed on the outside of the rotating rack 31 in an alternating manner. The first scraper 311 is concave inward on the side away from the rotating rack 31, and the second scraper 312 is convex outward on the side away from the rotating rack 31.

[0025] Specifically, in the utility model, a first scraper 311 and a second scraper 312 are installed on the turning rack 3 inside the evaporator body 1, and these two scrapers are staggered and fixed on the outside of the rotating rack 31. The first scraper is concave inward on the side away from the rotating rack, while the second scraper is convex outward on the side away from the rotating rack. This design enables the scraper to continuously turn the material during rotation, ensuring that the material is in full contact with the inner wall of the heating tube 11, and that heat exchange and evaporation processes can be effectively carried out even when the liquid level is low. A heater 21 is fixedly installed on the inside of the base 2, and a controller 211 is embedded in the front of the heater. A heating tube is arranged in a rectangular array on the top of the heater 21, and the top of the heating tube passes through the outer wall of the heating tube 11 and is flush with the inner wall of the heating tube 11. This design ensures the uniformity of the heating process, thereby improving thermal efficiency and evaporation quality. The evenly distributed heating tube design ensures comprehensive heating of the inner wall of the heating tube, avoids local overheating, and improves evaporation efficiency and product quality. The front end of the lower end face of the heating tube 11 is grooved and connected to a discharge pipe 17, and a flap valve 15 is fixedly installed at the bottom end of the discharge pipe 17. This design allows the flow of materials to be precisely controlled during discharge, preventing backflow of materials or entry of air, and ensuring the cleanliness and efficiency of the discharge process. The setting of the flap valve 15 provides good sealing during discharge, preventing backflow of materials and mixing of air, and ensuring the smoothness and hygiene of the discharge process. The required heating temperature and time can be set through the controller 211 to precisely control the heating process. During the evaporation process, the evaporation situation is monitored to ensure that the material is evenly distributed in the heating tube to avoid local overheating or uneven drying. The heating temperature and the rotation speed of the material turning rack are adjusted as needed to control the evaporation rate, thereby reducing the risk of dry burning caused by the lowering of the liquid level. Through the above design, the multi-scraper drum chemical evaporator can still maintain effective evaporation efficiency when the liquid level is low, while avoiding equipment damage caused by dry burning, and improving the safety and reliability of the equipment.

[0026] Example 2

[0027] In order to improve the heating efficiency and make the material heated evenly, Figure 1 and Figure 2 As shown, in this embodiment, a heater 21 is fixedly mounted on the inside of the base 2, and a controller 211 is embedded in the front of the heater 21. The design integrates the heater 21 within the base 2, while the controller 211 is embedded in the front of the heater 21. This integrated design not only simplifies the appearance of the device but also allows the operator to intuitively control the heating process, ensuring convenient and safe operation. The integrated design of the heater 21 and controller 211 makes the device layout more compact and the operating interface more intuitive, making it easier to monitor and adjust the heating process.

[0028] Furthermore, a rectangular array of heating tubes is arranged at the top of heater 21, with the tops of the tubes passing through the outer wall of the heating barrel 11 and remaining flush with the inner wall. This precise arrangement ensures uniform heating, thereby improving thermal efficiency and evaporation quality. The evenly distributed heating tubes ensure comprehensive heating of the inner wall of the heating barrel 11, avoiding localized overheating and enhancing evaporation efficiency and product quality.

[0029] Example 3

[0030] In order to facilitate the discharge and avoid the material from splashing during heating, Figure 2 and Figure 3 As shown, in this embodiment, a slot is formed at the front end of the lower end face of the heating cylinder 11 and is connected to a discharge pipe 17. A flap valve 15 is fixedly mounted at the bottom end of the discharge pipe 17. This design provides precise control of material flow during discharge, preventing backflow and air ingress, ensuring a clean and efficient discharge process. The flap valve 15 provides a good seal during discharge, preventing backflow and air ingress, and ensuring a smooth and hygienic discharge process.

[0031] Furthermore, an inspection cover 14 is bolted to the front end of the heating cylinder 11. This annular structure, with tempered glass embedded within, ensures the seal of the device while allowing operators to visually observe the evaporation process without opening the cylinder. This provides a safe observation window, allowing operators to easily inspect the internal status of the evaporator while ensuring the seal and safety of the device.

[0032] Furthermore, a mounting frame 13 is rotatably mounted on the front end of the rotating frame 31, and the outer side of the mounting frame 13 is fixedly connected to the inner wall of the heating tube 11. The rear end of the rotating frame 31 passes through the heating tube 11 and is transmission-mounted with a drive motor 16. The drive motor 16 is fixedly mounted on the rear end of the outer wall of the heating tube 11, and the drive motor 16 adopts a forward and reverse AC motor structure design. In the design, the front end of the rotating frame 31 is rotationally mounted with a mounting frame 13, and the mounting frame 13 is fixedly connected to the inner wall of the heating tube 11, while the rear end of the rotating frame 31 passes through the heating tube 11 and is transmission-mounted with a drive motor 16. The drive motor 16 is fixed at the rear end of the outer wall of the heating tube 11 and adopts a forward and reverse AC motor structure design. This design enables the tipping frame 3 to operate stably and facilitates forward and reverse operations to adapt to different process requirements. The forward and reverse design of the drive motor 16 provides greater operational flexibility, so that the tipping frame 3 can perform forward and reverse operations according to process requirements, thereby improving the adaptability of the equipment and the convenience of operation.

[0033] Furthermore, the injection trough 12 includes a feed trough 121, which adopts a trumpet-shaped structure and is connected to a hopper 122 at its top. The injection trough 12 includes a feed trough 121, which adopts a trumpet-shaped structure and is connected to a hopper 122 at its top. This structural design facilitates the smooth addition of materials while reducing splashing and loss of materials during the addition process. The trumpet-shaped feed trough 121 allows materials to flow more smoothly into the evaporator, reducing material loss during the addition process and improving feeding efficiency and safety.

[0034] After the evaporation process is completed, the heater 21 and the driving motor 16 are turned off, and the heating cylinder 11 and the turning rack 3 are cleaned to ensure that there is no residual material. The necessary maintenance and inspection are carried out to ensure that the equipment can operate normally the next time it is used.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A multi-scraper drum chemical evaporator, comprising a base (2), an evaporator body (1) fixedly mounted on the top of the base (2), and a turning rack (3) rotatably mounted inside the evaporator body (1), characterized in that: The evaporator body (1) comprises a heating cylinder (11), the front end of the heating cylinder (11) adopts an open structure design and is fixedly installed with an inspection cover (14), and the upper end surface of the heating cylinder (11) is grooved and connected to a material injection groove (12); The tipping frame (3) comprises a rotating frame (31), a first scraper (311) and a second scraper (312) are fixedly mounted on the outer side of the rotating frame (31), the first scraper (311) and the second scraper (312) are fixedly mounted on the outer side of the rotating frame (31) in an alternating manner, the first scraper (311) is recessed inwardly on a side facing away from the rotating frame (31), and the second scraper (312) is convex outwardly on a side facing away from the rotating frame (31).

2. A multi-scraper drum chemical evaporator according to claim 1, characterized in that: A heater (21) is fixedly mounted on the inner side of the base (2), and a controller (211) is embedded in the front side of the heater (21).

3. The multi-scraper drum chemical evaporator according to claim 2, characterized in that: The top of the heater (21) is provided with heating tubes in a rectangular array, and the tops of the heating tubes pass through the outer wall of the heating cylinder (11) and are flush with the inner wall of the heating cylinder (11).

4. The multi-scraper drum chemical evaporator according to claim 1, characterized in that: The front end of the lower end face of the heating cylinder (11) is grooved and connected to a discharge pipe (17), and a flap valve (15) is fixedly installed at the bottom end of the discharge pipe (17).

5. The multi-scraper drum chemical evaporator according to claim 1, characterized in that: The inspection cover (14) is fixedly mounted on the front end of the heating cylinder (11) by means of mounting bolts. The inspection cover (14) is designed with an annular structure and has tempered glass embedded therein.

6. The multi-scraper drum chemical evaporator according to claim 1, characterized in that: The front end of the rotating frame (31) is rotatably mounted with a mounting frame (13), the outer side of the mounting frame (13) is fixedly connected to the inner wall of the heating cylinder (11), the rear end of the rotating frame (31) passes through the heating cylinder (11) and is drive-mounted with a driving motor (16), the driving motor (16) is fixedly mounted on the rear end of the outer wall of the heating cylinder (11), and the driving motor (16) adopts a forward and reverse AC motor structure design.

7. The multi-scraper drum chemical evaporator according to claim 1, characterized in that: The injection trough (12) comprises a feed trough (121), the feed trough (121) is designed with a trumpet-shaped structure, and a hopper (122) is connected and installed on the top of the feed trough (121).

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