Xylitol MVR evaporation and concentration device convenient to clean and maintain

Abstract

This utility model relates to the technical field of xylitol production equipment, specifically disclosing a xylitol MVR evaporation and concentration device that is easy to clean and maintain. It includes an evaporation tank with a top cover. A sliding groove is provided on the outer surface of one upper end of the evaporation tank, and a sliding frame is slidably mounted inside the sliding groove. An electromagnetic plate is mounted on the upper side of the sliding frame near the top cover. A scraper is slidably mounted on the inner wall of the evaporation tank, and a magnetic frame is mounted above the scraper. A positioning frame is located inside the magnetic frame, and a sliding column is mounted above the positioning frame. The sliding column is also slidably mounted below the top cover. Through the coordinated structure of the sliding groove, sliding frame, electromagnetic plate, scraper, and magnetic frame, the electromagnetic plate can drive the magnetic frame and scraper to slide along the inner wall of the evaporation tank, effectively scraping away xylitol scale adhering to the inner wall. This prevents scale accumulation from affecting heat transfer efficiency and product quality, significantly reducing cleaning and maintenance workload, lowering maintenance costs, and extending the service life of the device.

Description

Technical Field

[0001] This utility model relates to the technical field of xylitol production equipment, and in particular to a xylitol MVR evaporation and concentration device that is easy to clean and maintain. Background Technology

[0002] In the production of xylitol, evaporation and concentration are key steps. Their purpose is to remove excess water from the xylitol solution, increasing the xylitol concentration and laying the foundation for subsequent crystallization and separation processes. Currently, MVR (Mechanical Vapor Recompression) evaporation and concentration technology is widely used in xylitol evaporation and concentration processes due to its advantages such as low energy consumption, high thermal efficiency, and environmental friendliness.

[0003] During long-term use, existing xylitol MVR evaporation and concentration devices tend to accumulate scale on the inner walls of the heating tubes of the evaporator, the inner walls of the separator, and the inner walls of related pipes due to the viscosity of the xylitol solution. This scale not only reduces heat transfer efficiency, leading to a decrease in evaporation and concentration effect and an increase in energy consumption, but also affects the quality of xylitol products.

[0004] To address the issue of scale buildup on the inner wall of the evaporator during the evaporation and concentration process, which affects the quality of xylitol products, we propose a xylitol MVR evaporation and concentration device that is easy to clean and maintain. Utility Model Content

[0005] The purpose of this invention is to provide a xylitol MVR evaporation and concentration device that is easy to clean and maintain, in order to solve the technical problems in the prior art.

[0006] To achieve the above objectives, this utility model employs a xylitol MVR evaporation and concentration device that is easy to clean and maintain. The device includes an evaporation tank with a top cover. A sliding groove is provided on the outer surface of one upper end of the evaporation tank. A sliding frame is slidably disposed inside the sliding groove. An electromagnetic plate is provided on the upper side of the sliding frame near the top cover. A scraper is slidably disposed on the inner wall of the evaporation tank. A magnetic frame is provided above the scraper. A positioning frame is provided inside the magnetic frame. A sliding column is provided above the positioning frame and is also slidably disposed below the top cover.

[0007] The evaporation tank is equipped with a heater at its bottom, and the heater is equipped with a circulating heating pipeline inside.

[0008] The evaporation tank has an insulated partition frame at its center, a motor at its center, a transmission frame at the output end above the motor, the transmission frame being arranged in a three-axis configuration, and an equalizing roller at the lower end of the transmission frame away from the motor.

[0009] The top cover has a feed inlet.

[0010] The outer surface of the feed inlet is provided with a two-way feed valve.

[0011] A discharge pipe is provided on one side of the evaporation tank.

[0012] The outer surface of the discharge pipe is equipped with a two-way discharge valve.

[0013] The top cover has several vent pipes on one side above it, and several vent valves are arranged in a circular array on one side above it.

[0014] Beneficial effects:

[0015] 1. This utility model provides a xylitol MVR evaporation and concentration device that is easy to clean and maintain. Through the cooperation of structures such as sliding groove, sliding frame, electromagnetic plate, scraper, and magnetic frame, the electromagnetic plate can drive the magnetic frame and scraper to slide along the inner wall of the evaporation tank, which can promptly scrape off the xylitol scale adhering to the inner wall, avoid scale accumulation affecting heat transfer efficiency and product quality, and eliminate the need for frequent disassembly of the device for cleaning, greatly reducing the workload of cleaning and maintenance, lowering maintenance costs, and extending the service life of the device.

[0016] 2. This utility model provides a xylitol MVR evaporation and concentration device that is easy to clean and maintain. The circulating heating pipe of the heater below the evaporation tank can achieve uniform heating of the solution in the tank and avoid local overheating. The internal motor drives the three-axis transmission frame and the uniform roller to rotate, which can further stir the solution, make the solution heat more evenly, accelerate the evaporation rate of water, improve the concentration efficiency, and at the same time reduce the scale formation caused by local temperature difference, ensuring the stability of xylitol concentration.

[0017] 3. This utility model provides a xylitol MVR evaporation and concentration device that is easy to clean and maintain. The top cover inlet and the double-way valve allow for precise control of the xylitol solution feed rate, avoiding excessive or insufficient feed that could affect the process. The discharge pipe and the double-way valve at the bottom of the evaporation tank facilitate the smooth discharge of concentrated material, reducing residue. The vent pipe on the top cover can promptly discharge the gas generated during evaporation, balancing the internal and external gas pressure of the device, preventing excessive gas pressure from causing safety issues, and reducing the impact of residual gas on product purity, thereby improving production safety and product quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the overall internal structure of this utility model.

[0021] Figure 3 This is a utility model Figure 2 Enlarged view of the local structure at point A.

[0022] 101-Evaporation tank, 102-Heater, 103-Circulating heating pipeline, 104-Top cover, 105-Sliding groove, 106-Sliding frame, 107-Electromagnetic plate, 108-Scraper, 109-Magnetic frame, 110-Positioning frame, 111-Sliding column, 112-Heat insulation partition frame, 113-Motor, 114-Transmission frame, 115-Equalizing roller, 116-Inlet, 117-Vent pipe, 118-Outlet pipe, 119-Inlet double-way valve, 120-Outlet double-way valve. Detailed Implementation

[0023] Please see Figures 1-3 , Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a schematic diagram of the overall internal structure of this utility model. Figure 3 This is a utility model Figure 2 The enlarged view of a partial structure at point A shows that this utility model provides a xylitol MVR evaporation and concentration device that is easy to clean and maintain. It includes an evaporation tank 101, a top cover 104 above the evaporation tank 101, a sliding groove 105 on the outer surface of one upper end of the evaporation tank 101, a sliding frame 106 slidably disposed inside the sliding groove 105, an electromagnetic plate 107 disposed on the upper side of the sliding frame 106 near the top cover 104, a scraper 108 slidably disposed on the inner wall of the evaporation tank 101, a magnetic frame 109 above the scraper 108, a positioning frame 110 disposed inside the magnetic frame 109, a sliding column 111 above the positioning frame 110, and the sliding column 111 also slidably disposed below the top cover 104.

[0024] In this embodiment, when cleaning scale buildup on the inner wall, it is not necessary to disassemble the top cover 104. Simply drive the sliding frame 106 within the sliding groove 105 on the outer surface of one end of the evaporation tank 101, causing the sliding frame 106 to reciprocate along the sliding groove 105. When the electromagnetic plate 107 on the side of the sliding frame 106 near the top cover 104 is energized, it generates magnetism, attracting the magnetic frame 109 above the scraper 108 on the inner wall of the evaporation tank 101, causing the scraper 108 to slide synchronously along the inner wall. Simultaneously, the positioning frame 110 inside the magnetic frame 109 cooperates with the sliding column 111 sliding below the top cover 104, ensuring that the scraper 108 always stays in contact with the inner wall and does not deviate during movement.

[0025] Furthermore, a heater 102 is provided below the evaporation tank 101, and the circulating heating pipe 103 is provided inside the heater 102.

[0026] In this embodiment, the circulating heating pipe 103 expands the heat transfer area, achieving uniform heating of the solution and avoiding local overheating that could lead to carbonization or increased scaling of the xylitol solution. Compared with traditional single-pipe heating, the circulating heating method has higher thermal efficiency, can quickly increase the solution temperature, accelerate the evaporation rate of water, and reduce energy consumption.

[0027] Furthermore, the heat insulation partition frame 112 is provided at the center of the evaporation tank 101, the motor 113 is provided at the center of the heat insulation partition frame 112, the transmission frame 114 is provided at the upper output end of the motor 113, the transmission frame 114 is arranged in a three-axis configuration, and the uniform roller 115 is provided below the end of the transmission frame 114 away from the motor 113.

[0028] In this embodiment, the three-axis drive frame 114 drives the uniform roller 115 to stir the solution in all directions, breaking the temperature stratification of the solution and making the solution heat more evenly, thereby further improving the concentration efficiency. At the same time, stirring can reduce the solution from staying in one place for a long time, reducing the probability of scaling. In addition, the heat insulation partition frame 112 ensures the operational stability of the motor 113 and avoids damage to the motor 113 due to high temperature.

[0029] Furthermore, the feed inlet 116 is provided above the top cover 104.

[0030] In this embodiment, the inlet 116 is positioned reasonably, which makes it convenient for operators to complete the feeding operation quickly and easily, and avoids solution spillage; and the feeding path is direct, which reduces the residue and pollution of solution during the feeding process and ensures the utilization rate of raw materials.

[0031] Furthermore, the feed inlet 116 is provided with the feed double-way valve 119 on its outer surface.

[0032] In this embodiment, precise control of the feeding process is achieved, avoiding overloading of the evaporation tank 101 due to excessive feeding or affecting the concentration efficiency due to insufficient feeding; at the same time, it has good sealing performance, ensuring stable internal air pressure, reducing heat loss, and improving production safety.

[0033] Furthermore, the discharge pipe 118 is provided below one side of the evaporation tank 101.

[0034] In this embodiment, the discharge pipe 118 is located below the evaporation tank 101, using gravity to assist in discharge, making the material discharge smoother and reducing residue in the tank; and the discharge path is short, which can quickly transport the concentrated material to the subsequent process, avoiding the material from staying for a long time and causing quality changes.

[0035] Furthermore, the discharge pipe 118 is provided with the discharge double-way valve 120 on its outer surface.

[0036] In this embodiment, after the material concentration is completed, the discharge double-way valve 120 is opened to control the material discharge speed and discharge volume; when the device is in the evaporation and concentration stage or during cleaning and maintenance, the discharge double-way valve 120 is closed to prevent the solution or scale from leaking from the discharge pipe 118.

[0037] Furthermore, a plurality of vent pipes 117 are provided on one side above the top cover 104, and a plurality of vent valves 117 are arranged in a circular array on one side above the top cover 104.

[0038] In this embodiment, the steam generated by the evaporation of the solution will accumulate below the top cover 104. This steam can be discharged from the device in a timely manner through the vent pipe 117. The circular array layout makes the steam discharge more uniform, avoiding local steam accumulation that could lead to excessively high gas pressure inside the device and cause safety hazards. At the same time, timely discharge of steam can maintain a low-pressure environment in the evaporation tank 101, accelerate the water evaporation rate, improve the concentration efficiency, and the discharged steam can be recycled by the MVR system, further reducing energy consumption.

[0039] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A xylitol MVR evaporation and concentration device that is easy to clean and maintain, characterized in that, The system includes an evaporation tank (101), a top cover (104) above the evaporation tank (101), a sliding groove (105) on the outer surface of one upper end of the evaporation tank (101), a sliding frame (106) slidably disposed inside the sliding groove (105), an electromagnetic plate (107) disposed on the upper side of the sliding frame (106) near the top cover (104), a scraper (108) slidably disposed on the inner wall of the evaporation tank (101), a magnetic frame (109) disposed above the scraper (108), a positioning frame (110) disposed inside the magnetic frame (109), a sliding column (111) disposed above the positioning frame (110), and the sliding column (111) slidably disposed below the top cover (104).

2. The xylitol MVR evaporation and concentration device as described in claim 1, characterized in that, A heater (102) is provided below the evaporation tank (101), and a circulating heating pipe (103) is provided inside the heater (102).

3. The xylitol MVR evaporation and concentration device as described in claim 1, characterized in that, An insulating partition frame (112) is provided at the center of the evaporation tank (101). A motor (113) is provided at the center of the insulating partition frame (112). A transmission frame (114) is provided at the upper output end of the motor (113). The transmission frame (114) is arranged in a three-axis configuration. A uniform roller (115) is provided below the end of the transmission frame (114) away from the motor (113).

4. The xylitol MVR evaporation and concentration device as described in claim 1, characterized in that, The top cover (104) is provided with a feed inlet (116).

5. The xylitol MVR evaporation and concentration device as described in claim 4, characterized in that, A two-way valve (119) is provided on the outer surface of the feed inlet (116).

6. The xylitol MVR evaporation and concentration apparatus as described in claim 1, characterized in that, A discharge pipe (118) is provided on one side of the evaporation tank (101).

7. The xylitol MVR evaporation and concentration apparatus as described in claim 6, characterized in that, The outer surface of the discharge pipe (118) is provided with a discharge two-way valve (120).

8. The xylitol MVR evaporation and concentration apparatus as described in claim 1, characterized in that, A plurality of vent pipes (117) are provided on one side above the top cover (104), and the plurality of vent pipes (117) are arranged in a circular array on one side above the top cover (104).

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