A ribose crystal separation and drying apparatus
By optimizing the design of the spiral plate and pressure roller structure, the problems of uniformity, agglomeration, energy consumption and efficiency of ribose crystal drying equipment were solved, and a highly efficient and uniform ribose crystal drying process was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HENAN NEWSTAR IND CO LTD
- Filing Date
- 2026-04-17
- Publication Date
- 2026-05-29
AI Technical Summary
Existing ribose separation and drying equipment suffers from problems such as insufficient drying uniformity, easy crystal agglomeration, high energy consumption, difficulty in temperature control, and low drying efficiency, making it particularly unsuitable for efficient automated production.
The ribose crystal separation and drying equipment adopts a spiral plate and pressure roller structure. Hot air is blown in through the small air outlet holes on the spiral plate and the roller sleeve on the pressure roller crushes the agglomerated material. Combined with the design optimization of the spiral plate and pressure roller, uniform drying and particle size control of the material are achieved.
It improves drying uniformity, avoids crystal agglomeration, reduces energy consumption, and enhances temperature control accuracy and drying efficiency, making it suitable for efficient automated production.
Smart Images
Figure CN122107741A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a ribose crystal separation and drying device. Background Technology
[0002] Ribose crystal separation and drying equipment is an indispensable key piece of equipment in the industrial production of D-ribose (pentose sugar). It is specifically used to dehydrate and dry the moist D-ribose crystals extracted from fermentation broth to obtain qualified finished crystals.
[0003] The existing ribose separation and drying equipment mainly has the following problems:
[0004] 1. Insufficient drying uniformity: Some ribose crystals cannot be fully dehydrated during the drying process, resulting in uneven moisture content in the finished product, which directly affects product quality. This problem is exacerbated, especially in large-scale production, where uneven material accumulation and airflow distribution can worsen the issue.
[0005] 2. Prone to clumping during drying: Ribose crystals tend to clump together during drying, which not only affects subsequent packaging and use, but also reduces the product's appearance quality and flowability. Furthermore, moisture may remain inside the clumped crystals and cannot be removed.
[0006] 3. High energy consumption: Traditional drying methods have low thermal efficiency, and heat does not fully contact the material, resulting in low heat transfer efficiency.
[0007] 4. Difficulty in temperature control: Ribose is a heat-sensitive substance. If the temperature is too low, the drying will not be complete. In order to ensure the drying quality, existing equipment often increases the hot air temperature or hot air flow, which can easily lead to the melting, discoloration or degradation of the crystals.
[0008] 5. Low drying efficiency: Existing equipment generally requires adding materials into a closed chamber, discharging the materials after drying, and then adding materials again. This intermittent material addition drying method is inefficient and not suitable for high-efficiency automated production lines. Summary of the Invention
[0009] The purpose of this invention is to provide a ribose crystal separation and drying device to solve the technical problems of insufficient drying uniformity, easy crystal agglomeration, high energy consumption, difficulty in temperature control, and low drying efficiency of existing drying equipment.
[0010] The technical solution of this invention is as follows: The ribose crystal separation and drying equipment includes:
[0011] The tank has a cylindrical inner cavity, and has a feed inlet at the top and a discharge outlet at the bottom.
[0012] The central cylinder is coaxially arranged in the tank body and has a central cavity;
[0013] The spiral plate is located in the annular space between the tank body and the central cylinder. The two sides of the spiral plate are fixedly connected to the inner wall of the tank body and the outer surface of the central cylinder, respectively. The spiral plate has a spiral inner cavity. The lower part of the spiral inner cavity is connected to the hot air source through the air inlet pipe. The upper surface of the spiral plate is evenly distributed with multiple small air outlet holes with a diameter smaller than the material diameter.
[0014] The rotating shaft is coaxially mounted in the central cavity. One end of the rotating shaft is driven by a geared motor. Multiple worm gear segments with gear teeth are machined at intervals on the rotating shaft.
[0015] The pressure roller is set one-to-one with the worm section. The rear end of the pressure roller has a worm wheel to mesh with the gear teeth of the corresponding worm section for transmission. The front end of the pressure roller has a rolling sleeve that extends toward the upper surface of the spiral plate to roll the material on the upper surface of the spiral plate, crushing the agglomerated material and rolling it downward.
[0016] From top to bottom, the diameter of the rolling sleeves of each pressure roller increases, so that the speed at which each rolling sleeve rolls the material increases.
[0017] Based on the above scheme, the following improvements are made: the minimum distance between the outer surface of the rolling sleeve of each pressure roller and the upper surface of the spiral plate decreases, so as to reduce the particle size of the crushed material.
[0018] Based on the above solution, further improvements are made as follows: multiple raised ribs are evenly distributed on the outer circumferential surface of the rolling sleeve, extending along the axial direction of the rolling sleeve. The raised ribs improve the efficiency of the rolling sleeve in conveying material downwards, preventing material slippage and jamming in front of the rolling sleeve. Furthermore, the raised structure of the ribs enhances the crushing efficiency of the material, preventing smooth materials from failing to enter the gap between the rolling sleeve and the spiral plate and thus remaining uncrushed.
[0019] Based on the above scheme, the following improvement is made: the cross-section of the convex strip is triangular.
[0020] Based on the above solution, the following improvements are made: an air extraction port is provided at the top of the tank, and an air extraction pump is connected to the air extraction port through an air extraction pipe to extract moisture from the tank.
[0021] Based on the above scheme, the following improvement is made: the cross-section of the spiral inner cavity is rectangular.
[0022] The beneficial effects of this application are as follows: When the ribose crystal separation and drying equipment is in use, the hot air source is turned on, and hot air is introduced from bottom to top into the spiral inner cavity of the spiral plate. The hot air is blown out through a large number of evenly distributed small air outlets on the upper surface of the spiral plate. The moist ribose crystal material can be continuously fed into the upper feed port of the tank at a set speed. The material falls onto the spiral plate and slides downward along the inclined spiral plate under the action of gravity. During the sliding process, it is gradually dried by the uniform hot air blown out by each small air outlet. At the same time, the geared motor starts and drives the rotating shaft to rotate. The gear teeth of each worm section on the rotating shaft rotate synchronously, driving the worm wheels of each pressure roller that mesh with it. The worm wheels drive the pressure rollers and the rolling sleeves on the pressure rollers to rotate. When the material slides along the spiral plate and contacts the uppermost pressure roller, the clumps of material in the gap between the lower surface of the rolling sleeve and the upper surface of the spiral plate are crushed. Moreover, because the rolling sleeve can roll the material on the spiral plate downward, it prevents the material from accumulating. Materials with a particle size smaller than the minimum gap between the roller sleeve and the spiral plate can pass directly. Moreover, the diameter of each roller sleeve increases from top to bottom. The purpose of this design is that as the material slides downward with the spiral plate, the particle size gradually decreases. At the same flow rate, the lower the material, the more material is crushed. Since the rotation speed of each roller is the same, if the diameter of the roller sleeve is also the same, the material at the top will be rolled faster than the material at the bottom, resulting in uneven flow rate and material accumulation. This can easily lead to a large accumulation of material that overflows from the top of the roller sleeve, resulting in unqualified particle size. This application addresses this by changing the diameter of the roller sleeve. On the one hand, it can balance the difference in the speed of the material being rolled from top to bottom. On the other hand, the change in the diameter of the roller sleeve affects the gap between the outer surface of the roller sleeve and the upper surface of the spiral plate, thereby achieving the requirement that the particle size gradually decreases as the material flows from top to bottom, achieving two goals at once. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the internal partial structure of a specific embodiment of the ribose crystal separation and drying equipment of the present invention;
[0024] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;
[0025] Figure 3 This is a schematic diagram of the cross-section of the pressure roller's rolling sleeve.
[0026] Figure 4 This is a schematic diagram of the fit between the pressure roller and the central cylinder;
[0027] In the diagram: 1-tank body, 11-feed inlet, 12-exhaust port, 13-exhaust pipe, 14-exhaust pump, 2-center cylinder, 3-spiral plate, 31-spiral inner cavity, 32-exhaust hole, 4-shaft, 41-worm gear section, 5-pressure roller, 51-worm wheel, 52-rolling sleeve, 53-protrusion strip, 54-positioning ring, 6-gear motor, 7-bearing. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0030] It should be noted that relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] The features and performance of the present invention will be further described in detail below with reference to embodiments.
[0032] A specific embodiment of the ribose crystal separation and drying device of the present invention is as follows: Figure 1-3 As shown, the ribose crystal separation and drying equipment includes a tank 1, a central cylinder 2, a spiral plate 3, a rotating shaft 4, and a pressure roller 5.
[0033] Tank 1 has a cylindrical inner cavity, with an inlet 11 at the top and an outlet at the bottom. A central cylinder 2 is coaxially arranged within tank 1, forming a central cavity. A spiral plate 3 is located in the annular space between tank 1 and central cylinder 2. The spiral plate 3 is fixedly connected to the inner wall of tank 1 and the outer surface of central cylinder 2 on both sides. The spiral plate 3 has a spiral inner cavity 31, the lower part of which is connected to a hot air source via an air inlet pipe. The upper surface of the spiral plate 3 is evenly distributed with multiple small air outlet holes 32, each smaller than the diameter of the material. A rotating shaft 4 is coaxially rotatably assembled within the central cavity. One end of the rotating shaft 4 is driven by a geared motor 6, and multiple worm gear sections 41 with gear teeth are machined at intervals on the rotating shaft 4. Each pressure roller 5 is correspondingly arranged with a worm gear section 41. The rear end of each pressure roller 5 has a worm wheel 51 for meshing and transmission with the teeth of the corresponding worm gear section 41. The front end of each pressure roller 5 has a rolling sleeve 52 that extends toward the upper surface of the spiral plate 3 to roll the material on the upper surface of the spiral plate 3, crushing and conveying the agglomerated material downwards. From top to bottom, the diameter of the rolling sleeve 52 of each pressure roller 5 increases, thereby increasing the speed at which each rolling sleeve 52 conveys the material. The minimum distance between the outer surface of the rolling sleeve 52 of each pressure roller 5 and the upper surface of the spiral plate 3 decreases, thereby decreasing the particle size of the crushed material.
[0034] Multiple raised strips 53 are evenly distributed on the outer circumferential surface of the rolling sleeve 52, extending along the axial direction of the rolling sleeve 52. The raised strips 53 serve two purposes: firstly, they improve the efficiency of the rolling sleeve 52 in conveying material downwards, preventing material slippage and jamming in front of the rolling sleeve 52; secondly, the raised structure of the strips 53 enhances the crushing efficiency of the material, preventing smooth materials from failing to enter the gap between the rolling sleeve 52 and the spiral plate 3 and thus remaining uncrushed. The cross-section of the raised strips 53 is triangular.
[0035] The upper part of the tank 1 is provided with an air extraction port 12, and the air extraction port 12 is connected to an air extraction pump 14 through an air extraction pipe 13 to extract the moisture inside the tank 1.
[0036] The cross-section of the spiral inner cavity 31 is rectangular.
[0037] like Figure 4As shown, in order to facilitate the positioning of the pressure roller 5 and ensure that the pressure roller 5 can only rotate around its own axis and cannot have other movements, a through hole is provided at the corresponding position on the central cylinder 2, and a bearing 7 is installed at the through hole. The pressure roller 5 is installed in the bearing 7. The pressure roller 5 is provided with a positioning ring 54, which is stopped and positioned in cooperation with the inner wall of the central cylinder 2. The rolling sleeve 52 is slidably assembled on the pressure roller 5 by a positioning key to prevent rotation, and is fixed relative to the pressure roller 5 by welding or riveting. One end face of the rolling sleeve 52 is stopped and positioned in cooperation with the outer wall of the central cylinder 2. The positioning of the pressure roller 5 is achieved by the bearing 7, the positioning ring 54 and the end face of the rolling sleeve 52, ensuring that the pressure roller 5 can only rotate around its own axis and that the displacement in other directions is restricted. This ensures that the worm gear 51 and the worm section mesh normally, and also ensures that the mating distance between the rolling sleeve 52 and the spiral plate remains unchanged.
[0038] When using the ribose crystal separation and drying equipment, the hot air source is turned on, and hot air is introduced from bottom to top into the spiral inner cavity 31 of the spiral plate 3. The hot air is blown out through a large number of evenly distributed air outlet holes 32 on the upper surface of the spiral plate 3. The moist ribose crystal material can be continuously fed into the upper feed port 11 of the tank 1 at a set speed. The material falls on the spiral plate 3 and slides downward along the inclined spiral plate 3 under the action of gravity. During the sliding process, it is gradually dried by the uniform hot air blown out by each air outlet hole 32. At the same time, the temperature is reduced. When the high-speed motor 6 starts, it drives the rotating shaft 4 to rotate. The gear teeth of each worm segment 41 on the rotating shaft 4 rotate synchronously, driving the worm wheels 51 of each pressure roller 5 that mesh with it. The worm wheels 51 drive the pressure roller 5 and the rolling sleeve 52 on the pressure roller 5 to rotate. When the material slides along the spiral plate 3 to contact the uppermost pressure roller 5, the clumps of material in the gap between the lower surface of the rolling sleeve 52 and the upper surface of the spiral plate 3 are crushed. Moreover, because the rolling sleeve 52 can roll the material on the spiral plate 3 downwards, it prevents the material from accumulating. Material with a particle size smaller than the minimum gap between the roller sleeve 52 and the spiral plate 3 can pass directly through. Moreover, the diameter of each roller sleeve 52 increases from top to bottom. The purpose of this setting is that as the material slides downward with the spiral plate 3, the particle size of the material gradually decreases. At the same flow rate, the lower the material is, the more material is crushed. Since the rotation speed of each pressure roller 5 is the same, if the diameter of the roller sleeve 52 is also the same, the material at the top will be rolled by the roller sleeve 52 at a faster speed, while the material at the bottom will be rolled by the roller sleeve 52 at a slower speed. This will lead to uneven flow rate and material accumulation. It is easy for a large amount of material to accumulate and pass over the top of the roller sleeve 52, resulting in unqualified particle size. This application changes the diameter of the roller sleeve 52 to balance the difference in the speed of the material rolled from top to bottom. On the other hand, the change in the diameter of the roller sleeve 52 affects the gap between the outer surface of the roller sleeve 52 and the upper surface of the spiral plate 3, thereby achieving the requirement that the particle size gradually decreases during the material flow from top to bottom, achieving two goals at once.
[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.
Claims
1. Ribose crystal separation and drying equipment, characterized in that, include: The tank has a cylindrical inner cavity, and has a feed inlet at the top and a discharge outlet at the bottom. The central cylinder is coaxially arranged in the tank body and has a central cavity; The spiral plate is located in the annular space between the tank body and the central cylinder. The two sides of the spiral plate are fixedly connected to the inner wall of the tank body and the outer surface of the central cylinder, respectively. The spiral plate has a spiral inner cavity. The lower part of the spiral inner cavity is connected to the hot air source through the air inlet pipe. The upper surface of the spiral plate is evenly distributed with multiple small air outlet holes with a diameter smaller than the material diameter. The rotating shaft is coaxially mounted in the central cavity. One end of the rotating shaft is driven by a geared motor. Multiple worm gear segments with gear teeth are machined at intervals on the rotating shaft. The pressure roller is set one-to-one with the worm section. The rear end of the pressure roller has a worm wheel to mesh with the gear teeth of the corresponding worm section for transmission. The front end of the pressure roller has a rolling sleeve that extends toward the upper surface of the spiral plate to roll the material on the upper surface of the spiral plate, crushing the agglomerated material and rolling it downward. From top to bottom, the diameter of the rolling sleeves of each pressure roller increases, so that the speed at which each rolling sleeve rolls the material increases.
2. The ribose crystal separation and drying equipment according to claim 1, characterized in that, From top to bottom, the minimum distance between the outer surface of the rolling sleeve of each pressure roller and the upper surface of the spiral plate decreases, so as to reduce the particle size of the crushed material.
3. The ribose crystal separation and drying equipment according to claim 1, characterized in that, Multiple raised strips are evenly distributed on the outer circumferential surface of the rolling sleeve, and the raised strips extend along the axial direction of the rolling sleeve.
4. The ribose crystal separation and drying equipment according to claim 3, characterized in that, The cross-section of the convex strip is triangular.
5. The ribose crystal separation and drying equipment according to claim 1, characterized in that, The upper part of the tank is equipped with an air extraction port, which is connected to an air pump through an air extraction pipe to extract moisture from the tank.
6. The ribose crystal separation and drying equipment according to claim 1, characterized in that, The cross-section of the spiral inner cavity is rectangular.