D-ribose crystallization mother liquor concentration device

Abstract

The utility model discloses a D-ribose crystallization mother liquor concentration device. The D-ribose crystallization mother liquor concentration device comprises a cylindrical tank body with a cavity inside, the outer wall of the tank body is double-layer so as to form a water jacket cavity, and the outer wall of the tank body is respectively provided with a water inlet and a water outlet which are communicated with the water jacket cavity; a feeding hole and a discharging hole which are communicated with the cavity are respectively formed in the upper end and the lower end of the shell; the exhaust pipe is fixedly connected to the tank body, one end of the exhaust pipe is communicated with the cavity, and the other end of the exhaust pipe is located outside the tank body; a rotatable stirring shaft penetrates through two ends of the tank body, and the middle part of the rotatable stirring shaft is connected with a stirring blade positioned in the cavity; a sealing part is arranged at the contact part of the stirring shaft and the side wall of the tank body; and the sealing part is detachably connected with the tank body. The device disclosed by the utility model can be used for continuously heating, vacuumizing and continuously feeding and discharging, meanwhile, the stirring shaft continuously stirs, the evaporation of volatile matters is accelerated, the mother liquor is efficiently concentrated, and the device has the advantages of simple structure, small size, low cost and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of bioengineering equipment technology, and relates to a D-ribose crystallization mother liquor concentration device. BACKGROUND

[0002] D-ribose production mainly adopts bacterial fermentation of glucose synthesis, and after fermentation, the fermentation liquor is further concentrated and crystallized to obtain a crystallization mother liquor mixture, the solid concentration of the mixture reaches 30-35 wt.%, and the D-ribose content in the solid is about 60 wt.%. The final product is obtained after separation and purification.

[0003] The existing mother liquor concentration device, for example, the patent "mother liquor concentration device" with the announcement number CN222517729U, has the defects of complex structure, bulky volume, low concentration efficiency and unsuitability for use in D-ribose production. UTILITY MODEL CONTENT

[0004] In order to overcome the deficiencies in the background art, the utility model provides a D-ribose crystallization mother liquor concentration device, which aims to improve the concentration efficiency, design a concentration tank, and place the material in the tank body in a 50-degree Celsius environment, separate and volatilize the material under vacuum, concentrate the mother liquor, and stir the material to speed up volatilization and improve the concentration efficiency. The tank body has the advantages of simple structure, small size, low cost and the like.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a D-ribose crystallization mother liquor concentration device, comprising a cylindrical tank body with a cavity inside; the outer wall of the tank body is double-layered to form a water jacket cavity, and the outer wall is respectively provided with a water inlet and a water outlet communicating with the water jacket cavity; the upper and lower ends thereof are respectively provided with a feed inlet and a discharge outlet communicating with the cavity; a gas extraction pipe is fixedly connected to the tank body, one end of the gas extraction pipe communicates with the cavity, and the other end of the gas extraction pipe is located outside the tank body; a rotatable stirring shaft penetrates both ends of the tank body, and the middle part of the stirring shaft is connected with stirring blades located in the cavity; the contact part between the stirring shaft and the side wall of the tank body is provided with a sealing member; and the sealing member is detachably connected with the tank body.

[0006] As a further optimization, the center of the side wall of the tank body at both ends is provided with a jack; the sealing member comprises a sealing sleeve inserted into the jack, and the sealing sleeve is sleeved on the outside of the stirring shaft; and the diameter of the jack is greater than the outer contour diameter of the stirring blades after being folded.

[0007] As a further optimization, the water inlet is located at the lower end of the tank body, and the water outlet is located at the top end of the tank body.

[0008] As a further optimization, there are multiple stirring blades, which are evenly distributed in multiple groups along the axial direction of the stirring shaft, and the stirring blades in each group are evenly distributed around the stirring shaft in the circumferential direction.

[0009] As a further optimization, one end of each of the stirring blades is hinged to the stirring shaft.

[0010] As a further optimization, a support frame is fixedly connected to the middle of the stirring shaft, and one end of the stirring blade is hinged to the top of the support frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are: this device can continuously heat, vacuum, and continuously feed and discharge, shorten downtime, improve work efficiency, and at the same time, the stirring shaft continuously stirs, accelerates the evaporation of volatiles, and efficiently concentrates the mother liquor. In addition, this device has the advantages of simple structure, small size, and low cost. Attached Figure Description

[0012] Fig. 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0013] Fig. 2 This is a cross-sectional structural diagram of an embodiment of the present invention.

[0014] The correspondence between the technical features in the figure and the reference numerals is as follows: tank body 1; water jacket cavity 11; water inlet 12; water outlet 13; insertion hole 14; feed inlet 2; discharge outlet 3; air extraction pipe 4; stirring shaft 5; stirring blade 51; support frame 52; sealing sleeve 6. Detailed Implementation

[0015] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some preferred embodiments of this utility model, and not all embodiments. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of this utility model, and are not intended to limit the protection scope of this utility model.

[0016] Example: Please refer to Figs. 1-2This utility model provides the following technical solution: a D-ribose crystallization mother liquor concentration device, comprising a cylindrical tank 1 with an internal cavity; the outer wall of the tank 1 is double-layered to form a water jacket cavity 11, and the outer wall is respectively provided with an inlet 12 and an outlet 13 communicating with the water jacket cavity 11; the upper and lower ends are respectively provided with a feed inlet 2 and a discharge outlet 3 communicating with the cavity; an air extraction pipe 4 is fixedly connected to the tank 1, one end of which communicates with the cavity, and the other end is located outside the tank 1; a rotatable stirring shaft 5 passes through both ends of the tank 1, and a stirring blade 51 located in the cavity is connected to the middle part of the shaft; a sealing component is provided at the contact part between the stirring shaft 5 and the side wall of the tank 1.

[0017] In operation, inlet 12 is connected to hot water, which is discharged from outlet 13, forming a continuous flow of water in the water jacket cavity 11. The hot water is at approximately 50 degrees Celsius, sufficient to heat the material in the cavity. Fermentation broth enters the cavity through inlet 2, at which point outlet 3 is closed. Simultaneously, suction pipe 4 extracts air from the cavity, creating a negative pressure state. Volatile substances in the fermentation broth evaporate and are discharged from suction pipe 4, thus concentrating the mother liquor. The stirring shaft 5 and stirring blades 51 continuously stir the broth, preventing crystallization and condensation on the surface, thus improving concentration efficiency. To maintain a sealed negative pressure state within the tank 1, sealing components are installed at both ends of the stirring shaft 5. Furthermore, these sealing components can enlarge the insertion holes 14 at both ends of the tank 1 for easy maintenance and replacement of the stirring shaft 5. Therefore, the operation of inlet 2 and outlet 3 is independent of the rotation of the stirring shaft 5, allowing for continuous feeding and discharging, reducing downtime, and improving work efficiency.

[0018] An exemplary sealing component includes insertion holes 14 at the center of both end side walls of the tank 1; the sealing component includes a sealing sleeve 6 inserted into the insertion holes 14, the sealing sleeve 6 being fitted over the outside of the stirring shaft 5. The insertion holes 14 are at least larger than the shaft diameter of the stirring shaft 5, and the stirring blades 51 are detachable; removing the stirring blades 51 allows the stirring shaft 5 to be pulled out for easy maintenance. Of course, the sealing component may also include sealing strips and sealing bearings, etc., which can be selected from existing technologies as needed. In this embodiment, the inner wall of the sealing sleeve 6 is provided with a wear-resistant layer to extend its service life.

[0019] Preferably, the inlet 12 is located at the lower end of the tank body 1, and the outlet 13 is located at the top of the tank body 1. Hot water enters from the bottom and exits from the top, ensuring that the water jacket cavity 11 is filled completely and preventing the formation of empty cavities.

[0020] In order to keep the rotating stirring shaft 5 in dynamic balance, it is preferable that there are multiple stirring blades 51, which are evenly distributed in multiple groups along the axial direction of the stirring shaft 5, and each group of stirring blades 51 is evenly distributed around the stirring shaft 5.

[0021] A further optimization is that one end of each of the stirring blades 51 is hinged to the stirring shaft 5. In this case, the stirring blades 51 can not only play a stirring role, but also swing irregularly to impact the crystal blocks, break the crystals, make the crystal blocks smaller, avoid clogging the discharge port 3, and make the discharge smoother.

[0022] Preferably, a support frame 52 is fixedly connected to the middle of the stirring shaft 5, and one end of the stirring blade 51 is hinged to the top of the support frame 52. It can be seen that the outer diameter of the fixed support frame 52 is smaller than the diameter of the insertion hole 14. When the stirring blade 51 is retracted, the stirring shaft 5 can be pulled out. When the stirring blade 51 is extended, its end leaves a gap with the inner wall of the tank 1, which can be used as a hammer to break the crystals.

[0023] The advantages of this embodiment are that, compared with the prior art, this device can continuously heat, vacuum, and continuously feed and discharge, shortening downtime and improving work efficiency. At the same time, the stirring shaft 5 continuously stirs, accelerating the evaporation of volatiles and efficiently concentrating the mother liquor. Furthermore, this device has the advantages of simple structure, small size, and low cost.

[0024] The parts of this utility model not described in detail are prior art; for those skilled in the art, the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A D-ribose crystallization mother liquor concentration device, comprising a cylindrical tank (1) with an internal cavity; characterized in that: The outer wall of the tank (1) is double-layered to form a water jacket cavity (11). The outer wall is provided with an inlet (12) and an outlet (13) that communicate with the water jacket cavity (11). The upper and lower ends are provided with a feed inlet (2) and a discharge outlet (3) that communicate with the cavity. The air extraction pipe (4) is fixed to the tank (1), with one end communicating with the cavity and the other end located outside the tank (1). A rotatable stirring shaft (5) runs through both ends of the tank (1), and a stirring blade (51) is hinged in the middle of the shaft (5) and located in the cavity; a sealing component is provided at the contact part between the stirring shaft (5) and the side wall of the tank (1); the sealing component is detachably connected to the tank (1).

2. The D-ribose crystallization mother liquor concentration apparatus according to claim 1, characterized in that: The tank (1) has insertion holes (14) at the center of the side walls at both ends; the sealing component includes a sealing sleeve (6) inserted into the insertion hole (14), and the sealing sleeve (6) is fitted on the outside of the stirring shaft (5); the diameter of the insertion hole (14) is larger than the outer contour diameter of the stirring blade (51) after it is closed.

3. The D-ribose crystallization mother liquor concentration apparatus according to claim 1, characterized in that: The inlet (12) is located at the lower end of the tank (1), and the outlet (13) is located at the top of the tank (1).

4. The D-ribose crystallization mother liquor concentration apparatus according to claim 1, characterized in that: There are multiple stirring blades (51), which are evenly distributed along the axial direction of the stirring shaft (5) and divided into multiple groups. Each group of multiple stirring blades (51) are evenly distributed around the stirring shaft (5) in the circumferential direction.

5. The D-ribose crystallization mother liquor concentration apparatus according to claim 4, characterized in that: The middle part of the stirring shaft (5) is fixedly connected to the support frame (52), and one end of the stirring blade (51) is hinged to the top of the support frame (52).

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