Xanthan gum comminution and classification apparatus

Abstract

This utility model relates to the technical field of xanthan gum pulverizing devices, providing a xanthan gum pulverizing and grading device, including a first pulverizing mechanism. A filter screen is installed below the pulverizing blades of the first pulverizing mechanism, and innovatively, the filter screen is suspended within a fixed ring by a spring. Simultaneously, the rotating shaft driving the pulverizing blades drives a cam, and the periodic impact between the cam and the protrusions inside the filter screen cavity causes the filter screen to vibrate at high frequency and micro-amplitude. This design achieves real-time sieving during the pulverizing process. The vibration effectively prevents easily adhering materials like xanthan gum from clogging the screen, ensuring the continuity and stability of the sieving process. Qualified fine powder can quickly enter the second pulverizing mechanism for fine grinding. A universal joint coupling directly connects the rotating shaft of the first pulverizing mechanism to the output shaft of the second motor of the second pulverizing mechanism. The use of the universal joint coupling allows only one second motor to drive both pulverizing mechanisms simultaneously, simplifying the mechanical structure and reducing equipment manufacturing costs and energy consumption.

Description

Technical Field

[0001] This utility model belongs to the technical field of xanthan gum pulverizing devices, and particularly relates to xanthan gum pulverizing and grading devices. Background Technology

[0002] Xanthan gum, a high-molecular-weight polysaccharide, is widely used in food, petroleum, pharmaceutical, and other fields due to its excellent thickening, emulsifying, and suspension stability. Its production process typically involves pulverizing and classifying the initially dried xanthan gum blocks to obtain a fine powder with uniform particle size to meet the needs of different applications. However, xanthan gum itself is highly viscous, hygroscopic, and prone to agglomeration, posing unique challenges to its pulverization and processing.

[0003] Existing xanthan gum pulverizing equipment aims to solve the above problems. For example, Chinese patent document (publication number: CN221733594U) discloses a xanthan gum raw material pulverizing device, whose technical solution focuses on improving the pulverizing environment. This device reduces the humidity in the pulverizing chamber by setting up a drying chamber and establishing an air circulation path with the pulverizing chamber, thereby reducing the adhesion of materials caused by moisture absorption to a certain extent.

[0004] However, this technical solution has a significant limitation: its crushing device directly grinds the material, lacking an effective pre-crushing and real-time grading mechanism. Specifically, the direct entry of uncrushed material into the grinding stage not only increases the workload of the main grinding mechanism and affects efficiency, but its simple inclined screen plate is also prone to clogging in the face of sticky materials, making it impossible to achieve a continuous "crushing-screening-re-crushing" optimized workflow. Furthermore, the multi-stage processing units of this type of device typically rely on independent drive sources, resulting in a complex overall structure and high energy consumption.

[0005] Therefore, existing technologies have failed to effectively address the core challenges of efficient pretreatment, dynamic anti-clogging screening, and coordinated operation with a streamlined power system for highly viscous materials such as xanthan gum in continuous production. There is an urgent need for an innovative crushing and grading device that integrates efficient pre-crushing, self-cleaning screening, and a compact power transmission system to fundamentally improve production efficiency and stability. Utility Model Content

[0006] This utility model provides a xanthan gum crushing and grading device, which aims to solve the problems of inefficient pretreatment, dynamic anti-clogging screening, and streamlined power system coordination of high-viscosity materials such as xanthan gum.

[0007] This invention is achieved as follows: a xanthan gum pulverizing and grading device, comprising: outer box; An outer frame is fixedly installed inside the outer box, and a material receiving frame is slidably provided at the bottom of the outer frame; A first crushing mechanism is disposed on the upper side inside the outer frame; A material feeding assembly is disposed above the outer frame for inputting materials into the first crushing mechanism; The second crushing mechanism is located below the first crushing mechanism; A universal joint coupling connects the first crushing mechanism and the second crushing mechanism.

[0008] Preferably, the first crushing mechanism includes two fixed plates respectively fixed to the side wall of the outer frame, a support rod fixed between the two fixed plates, a rotating shaft rotatably passing through the support rod, and a crushing blade fixedly installed at the top of the rotating shaft.

[0009] Preferably, the first crushing mechanism further includes a fixing ring fixed between the two fixing plates, the fixing ring having an inner cavity, a filter screen being fitted inside the cavity, a spring connecting the outer periphery of the filter screen to the cavity of the fixing ring, and a crushing cylinder being fixed to the top of the fixing ring.

[0010] Preferably, a circular cavity is formed through the center of the filter screen, a cam is provided inside the circular cavity, and a protrusion that cooperates with the cam is provided on the inner wall of the circular cavity.

[0011] Preferably, the cam is fixed to the outer wall of the rotating shaft, and a clamping plate fixed to the outer wall of the rotating shaft is provided on both the upper and lower sides of the cam, and the clamping plate slides against the outer wall of the filter screen.

[0012] Preferably, the second crushing mechanism includes a V-shaped plate fixed to the side wall of the outer frame, a grinding disc fixed to the outer wall of the V-shaped plate, an opening on one side of the grinding disc, a rotating ring on the inner side of the grinding disc, and a grinding groove formed by the gap between the rotating ring and the bottom of the grinding disc.

[0013] Preferably, a second motor is fixedly installed on the outer wall of the V-shaped plate, and the output shaft of the second motor rotatably passes through the outer wall of the V-shaped plate. A support rod is fixedly connected to the inner side of the rotating ring, and the support rod is fixedly connected to the output shaft of the second motor.

[0014] Preferably, the universal joint coupling is fixedly connected between the output shaft of the second motor and the rotating shaft.

[0015] Preferably, the material conveying assembly includes a material conveying pipe fixed to the top of the outer frame, a hopper fixedly connected to the upper side of the material conveying pipe, a screw conveyor provided inside the material conveying pipe, and a first motor for rotating the screw conveyor fixedly installed on the outer wall of the outer frame.

[0016] Preferably, the top of the outer casing has a feeding port, and the feeding port is provided with an openable and closable feeding port cover. A cold source input pipe is fixedly connected to the side wall of the outer casing for conveying cold flow to the inside of the outer casing.

[0017] Compared with related technologies, the xanthan gum pulverizing and grading device provided by this utility model has the following beneficial effects: 1. Integrated vibrating screening and secondary grinding effectively prevent clogging and improve efficiency: A filter screen is installed below the grinding blades of the first grinding mechanism, and innovatively, the filter screen is suspended within a fixed ring by a spring. Simultaneously, the rotating shaft driving the grinding blades drives a cam, and through the periodic contact and separation of the cam profile with the protrusions in the circular cavity of the fixed ring, the filter screen vibrates at high frequency with the help of the spring. This design achieves real-time screening during the grinding process. The vibration effectively prevents easily adhering materials such as xanthan gum from clogging the screen, ensuring the continuity and stability of the screening process. Qualified fine powder can quickly enter the second grinding mechanism for fine grinding, while coarse materials are retained for further grinding, thus significantly improving the overall grinding efficiency and the uniformity of product fineness. This solves the common problems of screen clogging and low efficiency in traditional grinders when processing xanthan gum.

[0018] 2. Single power source linkage and low-temperature protection, compact structure and guaranteed material quality: The output shaft of the second motor drives the rotating ring to rotate via a support rod. Simultaneously, this output shaft (or an extended shaft concentric with it) extends upwards via a universal joint coupling and connects to the rotating shaft of the first crushing mechanism, thus achieving single-motor drive of both crushing mechanisms. This design enables the simultaneous drive of two crushing mechanisms using a single motor (the second motor), which helps reduce system energy consumption compared to using two independent motors. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the inner structure of the outer casing of this utility model; Figure 3 This is a schematic diagram of the inner structure of the outer frame of this utility model; Figure 4 This is a schematic diagram of the assembly structure of the second crushing mechanism of this utility model; Figure 5 This is a schematic diagram of the assembly structure of the first crushing mechanism of this utility model; Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Outer casing; 2. Cold source input pipe; 3. Feeding port cover; 4. Conveying assembly; 41. Hopper; 42. First motor; 43. Conveying pipe; 44. Screw conveyor; 5. First crushing mechanism; 51. Crushing blade; 52. Fixing plate; 53. Support rod; 54. Rotating shaft; 55. Fixing ring; 56. Crushing cylinder; 57. Filter screen; 571. Cavity; 58. Spring; 59. Vibrating component; 591. Cam; 592. Clamping plate; 593. Protrusion; 6. Outer frame; 61. Receiving frame; 7. Second crushing mechanism; 71. Second motor; 72. V-shaped plate; 73. Rotating ring; 74. Grinding disc; 75. Opening; 76. Support rod; 8. Universal joint coupling. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] Example 1 A preferred embodiment of the xanthan gum pulverizing and grading device provided by this utility model is, for example... Figures 1 to 6 As shown: Xanthan gum crushing and grading device, including an outer box 1; an outer frame 6 fixedly installed inside the outer box 1, with a receiving frame 61 slidably arranged at the bottom of the outer frame 6; a first crushing mechanism 5 disposed inside the upper side of the outer frame 6; and a conveying component 4 disposed above the outer frame 6 for feeding materials into the first crushing mechanism 5.

[0024] Specifically, the first crushing mechanism 5 includes two fixed plates 52 respectively fixed to the side wall of the outer frame 6, a support rod 53 fixed between the two fixed plates 52, a rotating shaft 54 ​​rotatably passing through the inside of the support rod 53, and a crushing blade 51 fixedly installed at the top of the rotating shaft 54.

[0025] Furthermore, the first crushing mechanism 5 also includes a fixing ring 55 fixed between two fixing plates 52. An annular cavity is formed on the inner side of the fixing ring 55, and a filter screen 57 is fitted inside the annular cavity. A spring 58 connects the outer periphery of the filter screen 57 to the annular cavity of the fixing ring 55. A crushing cylinder 56 is fixedly connected to the top of the fixing ring 55. A circular cavity 571 is formed through the center of the filter screen 57. A cam 591 is provided inside the circular cavity 571, and a protrusion 593 that cooperates with the cam 591 is provided on the inner wall of the circular cavity 571. The cam 591 is fixed to the outer wall of the rotating shaft 54. A clamping plate 592 is provided on both the upper and lower sides of the cam 591 and fixed to the outer wall of the rotating shaft 54. The clamping plate 592 slides and fits against the outer wall of the filter screen 57.

[0026] Specifically, the material conveying assembly 4 includes a material conveying pipe 43 fixedly connected to the top of the outer frame 6. A hopper 41 is fixedly connected to the upper side of the material conveying pipe 43. A screw conveyor 44 is provided inside the material conveying pipe 43. A first motor 42 for rotating the screw conveyor 44 is fixedly installed on the outer wall of the outer frame 6. A feeding port is provided on the top of the outer casing 1. An openable feeding port cover 3 is provided at the feeding port. A cold source input pipe 2 is fixedly connected to the side wall of the outer casing 1 for conveying cold flow to the inside of the outer casing 1.

[0027] In this embodiment, the operator feeds the xanthan gum blocks or granules to be processed into the feed inlet cap 3. The conveying assembly 4 located below it starts working, with the first motor 42 driving the screw conveyor 44 to rotate, steadily and controllably conveying the material from the hopper 41 through the conveying pipe 43 into the crushing cylinder 56 of the first crushing mechanism 5. Here, the crushing blades 51 driven by the rotating shaft 54 ​​rotate at high speed, generating strong shearing and impact forces on the material, performing the first crushing process, breaking large pieces of material into smaller particles.

[0028] In this embodiment, the pre-crushed material particles fall onto the lower filter screen 57. At this stage, only fine particles with a diameter smaller than the pore size of the filter screen 57 can pass through the sieve and enter the next processing stage; while larger particles are retained on the filter screen 57. Furthermore, the integrated vibration component 59 of this device consists of a cam 591 fixed on the rotating shaft 54, a protrusion 593 inside the circular cavity 571 of the filter screen 57, and a spring 58 connecting the filter screen 57 and the fixing ring 55. When the rotating shaft 54 ​​rotates, the cam 591 periodically presses the protrusion 593, causing the filter screen 57 to vibrate at high frequency and amplitude. This action effectively prevents sieve clogging, disturbs the material, improves screening efficiency, and ensures that only qualified fine powder can pass through.

[0029] Example 2 Based on Example 1, a preferred embodiment of the xanthan gum pulverizing and grading device provided by this utility model is as follows: Figures 1 to 6As shown: The xanthan gum crushing and grading device also includes a second crushing mechanism 7 disposed below the first crushing mechanism 5; a universal joint coupling 8 is connected between the first crushing mechanism 5 and the second crushing mechanism 7.

[0030] Specifically, the second crushing mechanism 7 includes a V-shaped plate 72 fixed to the side wall of the outer frame 6. A grinding disc 74 is fixed to the outer wall of the V-shaped plate 72. An opening 75 is provided on one side of the grinding disc 74. A rotating ring 73 is provided on the inner side of the grinding disc 74. The gap between the rotating ring 73 and the bottom of the grinding disc 74 forms a grinding groove. A second motor 71 is fixedly installed on the outer wall of the V-shaped plate 72. The output shaft of the second motor 71 rotates through the outer wall of the V-shaped plate 72. A support rod 76 is fixed to the inner side of the rotating ring 73. The support rod 76 is fixedly connected to the output shaft of the second motor 71.

[0031] Furthermore, the universal joint coupling 8 is fixedly connected between the output shaft of the second motor 71 and the rotating shaft 54.

[0032] In this embodiment, the fine particles passing through the filter 57 fall precisely into the grinding area of ​​the second crushing mechanism 7 under the influence of gravity. This mechanism consists of a fixed grinding disc 74 and a rotating ring 73 driven by a second motor 71 via a support rod 76, with the gap between them forming a "grinding groove". Within this confined space, the material is subjected to intense compression, friction, and shearing, further grinding it into finer ultrafine powder. In practical applications, the opening 75 on the side of the device is used to connect to a negative pressure air separation system. Under the action of airflow, powder meeting the final fineness requirements is extracted. Finally, the qualified ultrafine powder carried out by the airflow is collected by a cyclone separator and dust collector at the rear end (not shown in the diagram, but standard equipment for this type of device, and will not be elaborated upon here). The receiving frame 61 at the bottom of the device can be used to collect any remaining coarse material or accidentally dropped debris.

[0033] In this embodiment, a highly efficient power design is employed. The first crushing mechanism 5 and the second crushing mechanism 7 are linked by a universal joint coupling 8. This allows only one power source, the second motor 71, to drive the rotating ring 73 while simultaneously transmitting power to the rotating shaft 54 ​​of the next stage via the universal joint coupling 8, thereby synchronously driving the crushing blades 51. This design simplifies the structure and reduces energy consumption. Furthermore, for heat-sensitive materials such as xanthan gum, the device is equipped with a cold source input pipe 2, a common method for xanthan gum crushing. The cold source input pipe 2 allows low-temperature gas, such as cold air or nitrogen, to be introduced into the sealed outer casing 1 to cool the entire crushing chamber, ensuring that the material does not deteriorate due to high temperatures during processing and preserving its functional properties.

[0034] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0035] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units described above is only a logical functional division of the xanthan gum pulverizing and grading apparatus. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A xanthan gum pulverizing and grading device, characterized in that, include: outer box(1); An outer frame (6) is fixedly installed inside the outer box (1), and a receiving frame (61) is slidably provided at the bottom of the outer frame (6). The first crushing mechanism (5) is disposed on the upper side inside the outer frame (6); A material feeding assembly (4) is disposed above the outer frame (6) for feeding materials into the first crushing mechanism (5); The second crushing mechanism (7) is located below the first crushing mechanism (5); A universal joint coupling (8) is connected between the first crushing mechanism (5) and the second crushing mechanism (7).

2. The xanthan gum pulverizing and grading device as described in claim 1, characterized in that, The first crushing mechanism (5) includes two fixed plates (52) respectively fixed to the side wall of the outer frame (6), and a support rod (53) is fixed between the two fixed plates (52). A rotating shaft (54) is rotatably passed through the support rod (53), and a crushing blade (51) is fixedly installed at the top of the rotating shaft (54).

3. The xanthan gum pulverizing and grading device as described in claim 2, characterized in that, The first crushing mechanism (5) further includes a fixing ring (55) fixed between the two fixing plates (52). The fixing ring (55) has an inner cavity, and a filter screen (57) is sleeved inside the cavity. A spring (58) is connected between the outer periphery of the filter screen (57) and the cavity of the fixing ring (55). A crushing cylinder (56) is fixed to the top of the fixing ring (55).

4. The xanthan gum pulverizing and grading device as described in claim 3, characterized in that, The filter (57) has a circular cavity (571) through the center. A cam (591) is provided inside the circular cavity (571). A protrusion (593) that cooperates with the cam (591) is provided on the inner wall of the circular cavity (571).

5. The xanthan gum pulverizing and grading device as described in claim 4, characterized in that, The cam (591) is fixed to the outer wall of the rotating shaft (54). A clamp (592) is provided on both the upper and lower sides of the cam (591) and fixed to the outer wall of the rotating shaft (54). The clamp (592) slides against the outer wall of the filter screen (57).

6. The xanthan gum pulverizing and grading device as described in claim 5, characterized in that, The second crushing mechanism (7) includes a V-shaped plate (72) fixed to the side wall of the outer frame (6), a grinding disc (74) fixed to the outer wall of the V-shaped plate (72), an opening (75) on one side of the grinding disc (74), a rotating ring (73) is provided on the inner side of the grinding disc (74), and the gap between the rotating ring (73) and the bottom of the grinding disc (74) forms a grinding groove.

7. The xanthan gum pulverizing and grading device as described in claim 6, characterized in that, A second motor (71) is fixedly installed on the outer wall of the V-shaped plate (72). The output shaft of the second motor (71) rotates through the outer wall of the V-shaped plate (72). A support rod (76) is fixedly connected to the inner side of the rotating ring (73). The support rod (76) is fixedly connected to the output shaft of the second motor (71).

8. The xanthan gum pulverizing and grading device as described in claim 7, characterized in that, The universal joint coupling (8) is fixedly connected between the output shaft of the second motor (71) and the rotating shaft (54).

9. The xanthan gum pulverizing and grading device as described in claim 8, characterized in that, The material conveying assembly (4) includes a material conveying pipe (43) fixedly connected to the top of the outer frame (6), a hopper (41) fixedly connected to the upper side of the material conveying pipe (43), a screw conveyor (44) provided inside the material conveying pipe (43), and a first motor (42) for rotating the screw conveyor (44) fixedly installed on the outer wall of the outer frame (6).

10. The xanthan gum pulverizing and grading device as described in claim 9, characterized in that, The outer casing (1) has a feeding port on the top, and the feeding port is provided with an openable feeding port cover (3). The side wall of the outer casing (1) is fixedly connected to a cold source input pipe (2) for conveying cold flow to the inside of the outer casing (1).

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