Crystallization device of tagatose

Abstract

The utility model relates to the technical field of tagatose production equipment, discloses a tagatose crystallization device, and solves the problems that materials are not uniformly mixed, the temperature is difficult to regulate and control, crystallized materials are easy to remain and accumulate and impurities are easy to mix in the existing tagatose crystallization process. The device comprises a mixing tank, a metering and feeding mechanism with a driving motor and auger blades at the top end, a stirring and scraping assembly driven by a low-speed motor, a temperature control structure with a double-layer jacket and a spiral flow guide pipe and other key components. The metering and feeding mechanism realizes accurate feeding of seed crystals and a stock solution by virtue of accurate driving and conveying design, and promotes rapid and uniform mixing of raw materials in cooperation with the strong stirring efficiency of a double-helix ribbon in the stirring and scraping assembly. Meanwhile, a unique double-layer jacket of the mixing tank is matched with a spiral flow guide pipe, so that the internal thermal environment is precisely regulated and controlled; the cap-shaped filter screen is tightly cooperated with the matched scraper blade and scraper, so that impurities are effectively blocked, and the filter screen is cleaned in time.

Description

Technical Field

[0001] This utility model relates to the technical field of tagatose production equipment, specifically a tagatose crystallization device. Background Technology

[0002] The crystallization process of tagatose (presumably tagatose) typically requires the quantitative mixing of various materials. Before crystallization, a suitable proportion of tagatose solution must be mixed with other auxiliary components (such as seed crystals, and any possible additives). Appropriate material ratios can control important crystallization parameters such as the crystallization rate, crystal size, and shape.

[0003] Chinese patent CN215462137U discloses a crystallization apparatus for tagatose. It includes a frame, an evaporator, a crystallizer, a first stirring unit, an electromagnetic heater, a second stirring unit, and a cooling unit. The first stirring unit is installed inside the evaporator, the electromagnetic heater is installed outside the evaporator, the second stirring unit is installed inside the crystallizer, and the cooling unit is located outside the crystallizer. During operation, material is added to the evaporator through a feed pipe. The electromagnetic heater heats and evaporates the material. Simultaneously, a stepper motor drives a stirring rod to accelerate evaporation and propel the material. A concentration sensor detects the material concentration. When the concentration reaches a preset value, the valve of the conveying unit is opened, and the material enters the crystallizer. A chiller delivers coolant to the cooling channel on the outer wall of the crystallizer through a conduit for cooling and crystallization. A second stepper motor drives stirring blades to uniformly stir the material for rapid cooling. A scraper removes crystals from the inner wall. A temperature sensor monitors the temperature inside the crystallizer and controls the operation of the cooling unit. Finally, the discharge valve of the discharge unit is opened to discharge the material, yielding crystals. This design does not consider the quantitative mixing of seed crystals or related additives during the crystallization process to control the crystallization speed.

[0004] In response to the aforementioned technologies, a crystallization apparatus for tagatose is now provided, which can eliminate the drawbacks of existing apparatuses. Utility Model Content

[0005] The purpose of this invention is to provide a crystallization device for tagatose. Using this device solves the problems of uneven material mixing, difficulty in temperature control, easy accumulation of crystallized material, and easy mixing of impurities.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a crystallization device for tagatose, comprising a mixing tank, a low-speed motor fixedly installed at the top center of the mixing tank, a crystal material tube fixedly connected to one side of the bottom of the mixing tank, a liquid pipe fixedly connected to the bottom center of the mixing tank, valves provided at the connection points between the crystal material tube and the liquid pipe and the tank body of the mixing tank, and metering and feeding mechanisms symmetrically fixedly installed at the top of the mixing tank for separately feeding tagatose seed crystals and raw liquid, and a stirring and scraping assembly fixedly connected to the output shaft of the low-speed motor;

[0007] The metering and feeding mechanism includes a storage hopper, with a conveying cylinder fixedly connected to the bottom of the storage hopper. A drive motor is fixedly installed at one end of the conveying cylinder, and a shaft is fixedly connected to the output shaft of the drive motor. The other end of the shaft is movably mounted on the inner wall frame of the conveying cylinder on the side away from the drive motor. A screw conveyor blade is fixedly connected to the shaft. An electric telescopic valve is fixedly installed at the other end of the conveying cylinder and is connected to the mixing tank.

[0008] Preferably, the mixing tank has a double-layer jacket structure.

[0009] Preferably, a spiral guide pipe is fixedly installed between the inner and outer layers of the mixing tank, and the end of the spiral guide pipe is fixedly connected to an external temperature control device.

[0010] Preferably, the bottom of the mixing tank is designed with a conical structure.

[0011] Preferably, a cap-shaped filter screen is fixedly connected to the inner wall of the bottom of the mixing tank.

[0012] Preferably, the mixing and scraping assembly includes a mixing shaft, a spiral ribbon fixedly connected to the mixing shaft, the spiral ribbon having a double spiral structure, a W-shaped scraper and a trapezoidal scraper arm fixedly connected to the mixing shaft below the spiral ribbon, and a cross-shaped scraper fixedly connected to the bottom end of the mixing shaft.

[0013] Preferably, the cap-shaped filter screen is penetrated by and movably connected to the stirring shaft, the W-shaped scraper abuts against the outer wall of the cap-shaped filter screen, the trapezoidal scraper arm abuts against the inner wall of the cap of the cap-shaped filter screen, and the cross-shaped scraper abuts against the inner wall of the brim of the cap-shaped filter screen.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. The present invention proposes a crystallization device for tagatose, whose metering and feeding mechanism can accurately deliver seed crystals and raw liquid, and combined with the powerful stirring of double spiral ribbons, the raw materials are fully mixed, which greatly improves the crystallization efficiency and quality.

[0016] 2. The crystallization device for tagatose proposed in this utility model has a double-layer jacket and spiral guide pipe for precise temperature control, creating a suitable environment for crystallization; the conical structure at the bottom facilitates material discharge; the cap-shaped filter screen combined with scraper and scraper can not only prevent impurities from entering, but also clean the filter screen in time, ensuring smooth material filtration and ensuring the stable and efficient crystallization process in all aspects. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the stirring shaft structure of this utility model;

[0021] Figure 5 This is a schematic diagram showing the position and structure of the cap-shaped filter and the cross-shaped scraper of this utility model.

[0022] In the diagram: 1. Mixing tank; 11. Crystallizer tube; 12. Liquid tube; 2. Low-speed motor; 3. Metering and feeding mechanism; 31. Storage hopper; 32. Conveying cylinder; 33. Drive motor; 34. Shaft; 35. Screwdriver blade; 36. Electric telescopic valve; 4. Mixing and scraping assembly; 41. Mixing shaft; 42. Screw ribbon; 43. W-shaped scraper; 44. Trapezoidal scraper arm; 45. Star-shaped scraper; 40. Cap-shaped filter screen; 5. Spiral guide tube. Detailed Implementation

[0023] 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.

[0024] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0025] Combination Figures 1-5 A crystallization apparatus for tagatose includes a mixing tank 1. A low-speed motor 2 is fixedly installed at the top center of the mixing tank 1. A crystallizer tube 11 is fixedly connected to one side of the bottom of the mixing tank 1. A liquid pipe 12 is fixedly connected to the bottom center of the mixing tank 1. Valves are provided at the connection points between the crystallizer tube 11, the liquid pipe 12 and the tank body of the mixing tank 1. A metering and feeding mechanism 3 is symmetrically fixedly installed at the top of the mixing tank 1. A stirring and scraping assembly 4 is fixedly connected to the output shaft of the low-speed motor 2.

[0026] The metering and feeding mechanism 3 includes a storage hopper 31, with a conveying cylinder 32 fixedly connected to the bottom end of the storage hopper 31. A drive motor 33 is fixedly installed at one end of the conveying cylinder 32, and a shaft 34 is fixedly connected to the output shaft of the drive motor 33. The other end of the shaft 34 is movably mounted on the inner wall frame of the conveying cylinder 32 on the side away from the drive motor 33. An auger blade 35 is fixedly connected to the shaft 34. An electric telescopic valve 36 is fixedly installed at the other end of the conveying cylinder 32 and is connected to the mixing tank 1.

[0027] The mixing tank 1 has a double-layer jacket structure, with a spiral guide pipe 5 fixedly installed between the inner and outer jackets. The end of the spiral guide pipe 5 is fixedly connected to an external temperature control device. This structure can accurately regulate the temperature inside the mixing tank, creating a suitable thermal environment for tagatose crystallization, which is conducive to the stable and efficient crystallization process and ensures the quality of crystallization.

[0028] The mixing and scraping assembly 4 includes a mixing shaft 41, on which a screw ribbon 42 is fixedly connected. The screw ribbon 42 has a double helix structure. Driven by a low-speed motor 2, this double helix screw ribbon 42 can strongly and evenly mix the materials, making the raw materials fully mixed and accelerating the reaction process. A W-shaped scraper 43 and a trapezoidal scraper arm 44 are fixedly connected to the mixing shaft 41 below the screw ribbon 42. A cross-shaped scraper 45 is fixedly connected to the bottom end of the mixing shaft 41. During the mixing process, the W-shaped scraper 43 can scrape off the material crystal particles attached to the cap-shaped filter screen 40, the trapezoidal scraper arm 44 can penetrate into the inner wall of the cap-shaped filter screen 40 to clean the adhered crystal particles, ensuring that there are no dead corners for material collection. The cross-shaped scraper 45 scrapes off the crystal particles adhered to the bottom of the cap of the cap-shaped filter screen 40. The three work together to ensure that the materials are mixed evenly in the mixing tank 1, continuously participate in the crystallization reaction, and collect the crystal particles.

[0029] The bottom of the mixing tank 1 is designed with a conical structure, which facilitates the material to converge to the bottom under the action of gravity after crystallization, and makes it easier to discharge and collect from the crystal tube 11 and the liquid tube 12.

[0030] A cap-shaped filter screen 40 is fixedly connected to the inner wall of the bottom tank of mixing tank 1. The cap-shaped filter screen 40 is penetrated by the stirring shaft 41 and movably connected to it. The W-shaped scraper 43 abuts against the outer wall of the cap-shaped filter screen 40, the trapezoidal scraper arm 44 abuts against the inner wall of the cap of the cap-shaped filter screen 40, and the cross-shaped scraper 45 abuts against the inner wall of the brim of the cap of the cap-shaped filter screen 40. In this way, when the stirring and scraping assembly 4 is running, it can prevent the crystallized material from sticking to the filter screen, and can also clean the crystals attached to the surface of the filter screen in time through the cooperation of the scraper and the scraper, so as to ensure smooth material filtration.

[0031] Working Principle: In the tagatose crystallization process, the mixing tank 1 is the core component. A low-speed motor 2 at its top center is always on standby. The symmetrical metering and feeding mechanisms 3 at the top have clearly defined functions. Storage hoppers 31 store tagatose seed crystals and raw liquid respectively. The drive motor 33 starts, causing the shaft 34 to rotate. The auger blades 35 rotate accordingly, pushing the material along the conveyor cylinder 32. The electric telescopic valve 36 precisely controls the feeding rhythm, ensuring the material falls into the mixing tank 1. The low-speed motor 2 operates, driving the stirring and scraping assembly 4. The stirring shaft 41 rotates, and the double spiral ribbon 42 powerfully stirs and mixes the seed crystals and raw liquid. The W-shaped scraper 43, trapezoidal scraper arm 44, and star-shaped scraper 45 move with the shaft, scraping the walls, cleaning corners, and turning over the bottom. The mixing tank 1 has a double-layer jacket and a spiral guide pipe 5 connected to the temperature control equipment for precise temperature adjustment. The bottom cone-shaped material discharge aid and the cap-shaped filter screen 40 prevent the crystallized material from sticking to the filter screen during the crystallization process, and can also collect the crystallized particles through the cooperation of scraper and scraper blade.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crystallization apparatus for tagatose, comprising a mixing tank (1), a low-speed motor (2) fixedly installed at the top center of the mixing tank (1), a crystallizer tube (11) fixedly connected to one side of the bottom of the mixing tank (1), a liquid pipe (12) fixedly connected to the middle of the bottom end of the mixing tank (1), and valves provided at the connections between the crystallizer tube (11), the liquid pipe (12) and the tank body of the mixing tank (1), characterized in that: The top of the mixing tank (1) is symmetrically and fixedly provided with a metering feeding mechanism (3) for separately feeding tagatose seed crystals and raw liquid, and a stirring and scraping assembly (4) is fixedly connected to the output shaft of the low-speed motor (2). The metering and feeding mechanism (3) includes a storage hopper (31), the bottom end of which is fixedly connected to a conveying cylinder (32). A drive motor (33) is fixedly installed at one end of the conveying cylinder (32), and a shaft (34) is fixedly connected to the output shaft of the drive motor (33). The other end of the shaft (34) is movably mounted on the inner wall frame of the conveying cylinder (32) away from the drive motor (33). A screw conveyor blade (35) is fixedly connected to the shaft (34), and an electric telescopic valve (36) is fixedly installed at the other end of the conveying cylinder (32) and is connected to the mixing tank (1).

2. The crystallization apparatus for tagatose according to claim 1, characterized in that: The mixing tank (1) has a double-layer jacket structure.

3. The crystallization apparatus for tagatose according to claim 1, characterized in that: A spiral guide pipe (5) is fixedly installed between the inner and outer layers of the mixing tank (1), and the end of the spiral guide pipe (5) is fixedly connected to an external temperature control device.

4. The crystallization apparatus for tagatose according to claim 1, characterized in that: The bottom of the mixing tank (1) is designed with a conical structure.

5. The crystallization apparatus for tagatose according to claim 1, characterized in that: A cap-shaped filter screen (40) is fixedly connected to the inner wall of the bottom tank of the mixing tank (1).

6. The crystallization apparatus for tagatose according to claim 5, characterized in that: The mixing and scraping assembly (4) includes a mixing shaft (41), on which a screw ribbon (42) is fixedly connected. The screw ribbon (42) has a double helix structure. A W-shaped scraper (43) and a trapezoidal scraper arm (44) are fixedly connected on the mixing shaft (41) below the screw ribbon (42). A cross-shaped scraper (45) is fixedly connected to the bottom end of the mixing shaft (41).

7. The crystallization apparatus for tagatose according to claim 6, characterized in that: The cap-shaped filter screen (40) is penetrated by the stirring shaft (41) and movably connected to it. The W-shaped scraper (43) abuts against the outer wall of the cap-shaped filter screen (40), the trapezoidal scraper arm (44) abuts against the inner wall of the cap of the cap-shaped filter screen (40), and the cross-shaped scraper (45) abuts against the inner wall of the brim of the cap of the cap-shaped filter screen (40).

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