Pyrolysis carbon black granulator for laboratory

Abstract

The utility model provides a pyrolysis carbon black granulator for a laboratory, which belongs to the field of wet granulation and comprises a barrel. The main shaft is rotationally connected to the barrel body; the multiple adjusting structures are arranged in the axis direction of the main shaft, and the position of each adjusting structure on the main shaft can be adjusted in the axis direction of the main shaft and / or the circumferential direction of the main shaft; and at least one stirring tooth is arranged on each adjusting structure. The arrangement of the stirring teeth of the granulator is adjustable, so that granulation experiments can be carried out on carbon black products with different properties, and a carbon black manufacturer is helped to select or manufacture a wet granulator with higher qualified rate of the carbon black products based on the angle of the arrangement of the stirring teeth.

Description

Technical Field

[0001] This utility model belongs to the field of wet granulation, and in particular relates to a laboratory pyrolysis carbon black granulator. Background Technology

[0002] Currently, wet granulation is the most common granulation method used by carbon black manufacturers. During granulation, a drive unit rotates the main shaft inside the wet granulator cylinder. The stirring teeth on the main shaft interact with the powdered carbon black and granulation water fed into the cylinder at high speed, creating friction and agitation. This friction and agitation process forms granular carbon black products. The yield rate of the carbon black products is related to the main shaft speed, the flow rate of the granulation water, the shape and dimensions of the cylinder, and the layout of the stirring teeth on the main shaft. Among these factors, the layout of the stirring teeth on the main shaft has a significant impact on the particle size, hardness, and roundness of the carbon black products, and is a crucial factor affecting the yield rate.

[0003] Currently, the agitator tooth layout in wet granulation mills is typically fixed and non-adjustable. Most carbon black manufacturers also only possess wet granulation mills with a single agitator tooth layout. However, with the increasing application and promotion of carbon black products, market demands for carbon black performance are becoming more diversified. Simply adjusting the spindle speed and granulation water flow rate to improve the yield rate of carbon black products is insufficient due to the lack of comprehensive adjustability, leading to significant fluctuations in the yield rate and making it difficult to meet market requirements. Therefore, it is necessary to conduct granulation tests on carbon black products with different performance characteristics to determine the optimal agitator tooth layout and further improve the yield rate. However, the number of fixed agitator tooth layout types currently available on the market is limited, making it difficult to meet the required number of layout types for experiments, thus hindering experimental implementation. Utility Model Content

[0004] This invention proposes a laboratory pyrolysis carbon black granulator, which solves the problem that the current wet granulator has an unadjustable and limited variety of stirring tooth layouts, making it difficult to experimentally test the optimal stirring tooth layout required for carbon black products with different properties. This granulator has the feature of an adjustable stirring tooth layout, which makes it easy to test the corresponding optimal stirring tooth layout for carbon black products with different properties.

[0005] This utility model discloses a laboratory pyrolysis carbon black granulator, comprising:

[0006] Cylinder body.

[0007] The main shaft is rotatably connected to the cylinder.

[0008] Multiple adjustment structures are provided along the axis of the main shaft, and the position of each adjustment structure on the main shaft can be adjusted along the axis of the main shaft and / or the circumferential direction of the main shaft.

[0009] At least one stirring tooth is provided on each adjustment structure.

[0010] In some embodiments, the adjusting structure is sleeved on the main shaft; the granulator also includes bolts. The bolts pass through the adjusting structure, are threadedly connected to the adjusting structure, and abut against the main shaft. Each adjusting structure has at least one bolt.

[0011] In some embodiments, the length direction of the stirring teeth is radial to that of the adjustment structure. The connection length between the stirring teeth and the adjustment structure in the radial direction of the adjustment structure is adjustable.

[0012] In some embodiments, the adjustment structure includes:

[0013] Axial adjustment component, which is sleeved on the main shaft.

[0014] Radial adjustment components are provided on the outer side of each axial adjustment component, and each radial adjustment component is connected to at most one agitator tooth.

[0015] In some embodiments, the adjustment structure is threadedly connected to the helical teeth.

[0016] In some embodiments, the granulator also includes anti-loosening steel wires connected in series with bolts on multiple adjustment structures.

[0017] In some embodiments, the spindle is detachably connected to the cylinder.

[0018] In some embodiments, a granulation water flow rate regulating structure is also provided, which is connected to the top of the cylinder.

[0019] In some embodiments, the granulator also includes a geared motor connected to the main shaft.

[0020] In some embodiments, the granulator also includes a vibration detector mounted on the cylinder.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] In this invention, the main shaft of the granulator is equipped with an adjustment structure that can be adjusted in position along the axial and / or circumferential direction of the main shaft. The stirring teeth are set on the main shaft. By adjusting the position of the adjustment structure, the layout of the stirring teeth of the granulator can be changed, so that granulation experiments with various stirring tooth layouts can be carried out for carbon black products with different performance. This helps carbon black manufacturers to select or manufacture wet granulators with higher carbon black product qualification rates based on the angle of the stirring tooth layout.

[0023] In this invention, the connection length between the stirring teeth and the adjusting structure in the radial direction of the adjusting structure is adjustable so that the rotation radius of all the stirring teeth is basically or completely consistent.

[0024] This invention uses a geared motor to drive the main shaft to rotate, resulting in a compact structure and high transmission efficiency.

[0025] This invention incorporates a vibration detector on the cylinder body. By analyzing the detection results of the vibration detector, the granulator can be shut down in a timely manner when it is in an abnormal operating condition, thereby protecting the granulator.

[0026] The granulator in this invention features a replaceable cylinder, adjustable granulation water flow rate, and adjustable output speed of the drive device. This helps carbon black manufacturers select or manufacture wet granulators with higher carbon black product qualification rates by considering factors such as the agitator layout, granulation water flow rate, main shaft speed, and cylinder shape and size. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0028] Figure 1 This is a front view of the granulator provided in an embodiment of the present invention;

[0029] Figure 2 A side view of the granulator provided in an embodiment of this utility model;

[0030] Figure 3 for Figure 2 A schematic diagram of the AA section;

[0031] Figure 4 This is a schematic diagram of the structure related to the adjustment of the stirring tooth position provided in an embodiment of the present invention;

[0032] In the above figures: 1. Main shaft; 2. Adjustment structure; 21. Axial adjustment component; 22. Radial adjustment component; 3. Stirring teeth; 4. Bolt; 5. Anti-loosening steel wire; 6. Cylinder; 61. Upper shell; 62. Lower shell; 63. End cover; 64. Pressure cover; 65. Granulation water inlet; 66. Packing; 7. Sampler; 8. Observation cover; 9. Bearing seat; 10. Base; 11. Protective cover; 12. Coupling; 13. Drive device; 14. Bearing; 15. Anti-loosening structure. Detailed Implementation

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] This utility model embodiment provides a laboratory pyrolysis carbon black granulator, see reference. Figure 1-4 As shown, this laboratory pyrolysis carbon black granulator has at least the following features:

[0038] Cylinder 6.

[0039] Main shaft 1 is rotatably connected to cylinder 6 and is driven to rotate by drive device 13.

[0040] Adjustment structure 2: Multiple adjustment structures 2 are arranged on the main shaft 1 along its own axis direction. The position of the adjustment structure 2 on the main shaft 1 can be adjusted along the axis direction of the main shaft 1 and / or the circumferential direction of the main shaft 1.

[0041] At least one stirring tooth 3 is provided on each adjusting structure 2. The stirring tooth 3 is a columnar body, one end of which is fixedly connected to or detachably connected to the adjusting structure 2;

[0042] Both the adjusting structure 2 and the stirring teeth 3 are located inside the cylinder 6.

[0043] In this embodiment, the arrangement of the stirring teeth 3 on the main shaft 1 is adjustable. The adjustment is explained as follows: When the position of the adjusting structure 2 on the main shaft 1 is adjusted along the axial direction of the main shaft 1, the spacing of the stirring teeth 3 connected to two adjacent adjusting structures 2 in the axial direction of the main shaft 1 changes accordingly. When the position of the adjusting structure 2 on the main shaft 1 is adjusted along the circumferential direction of the main shaft 1, the included angle of the stirring teeth 3 connected to two adjacent adjusting structures 2 in the circumferential direction of the main shaft 1 changes accordingly.

[0044] The granulator provided in this embodiment can perform granulation experiments on carbon black products with different properties through the above adjustments, helping carbon black manufacturers to select or manufacture wet granulators with higher carbon black product qualification rates based on the angle of the stirring tooth 3 layout.

[0045] Furthermore, the cylinder 6 is provided with a granulation water inlet 65, and the granulation water flow rate at the granulation water inlet 65 is adjustable.

[0046] Furthermore, the granulation water flow rate is adjusted through a granulation water flow rate regulating structure, which is not shown in the diagram. The granulation water flow rate regulating structure is connected to the top of the cylinder and includes, but is not limited to, the following two types:

[0047] The first type is an adjustable valve installed at the granulation water inlet 65.

[0048] The second type is a water delivery device with adjustable pumping efficiency connected to the granulation water inlet 65.

[0049] Furthermore, the rotational speed of the spindle 1 can be adjusted via the drive device 13.

[0050] In the granulation experiment, in addition to the layout of the stirring teeth 3, at least one of the granulation water flow rate and the rotation speed of the main shaft 1 can be used as variables to conduct experiments. This helps carbon black manufacturers select or manufacture wet granulation machines with higher carbon black product qualification rates based on the layout of the stirring teeth 3, combined with at least one of the granulation water flow rate and the rotation speed of the main shaft 1.

[0051] In some embodiments, each adjusting structure 2 is provided with a stirring tooth 3, and each stirring tooth 3 and its adjacent plurality of stirring teeth 3 are spirally distributed. For example, all stirring teeth 3 may be distributed along the same spiral line. Alternatively, the stirring teeth 3 may be divided into multiple groups along the axial direction of the main shaft 1, with each group having more than three stirring teeth 3, all stirring teeth 3 in the same group being distributed along the same spiral line, and adjacent groups of stirring teeth 3 being distributed along spiral lines with different pitches.

[0052] In some embodiments, the stirring teeth 3 can be divided into multiple groups, with multiple stirring teeth 3 in each group. All stirring teeth 3 in the same group are distributed along the same spiral line. The distribution areas of multiple groups of stirring teeth 3 in the direction of the main shaft 1 axis may overlap. In this case, a single adjustment structure 2 may have multiple stirring teeth 3.

[0053] In some embodiments, the adjustment structure 2 is detachably connected to the spindle 1 to facilitate replacement of the adjustment structure 2 or adjustment of its position on the spindle 1.

[0054] Furthermore, the granulator also includes bolt 4. Adjustment structure 2 is sleeved on the main shaft 1, and can slide along the axis of the main shaft 1 and rotate around it. Bolt 4 passes through adjustment structure 2, is threadedly connected to it, and then abuts against the main shaft 1, restricting adjustment structure 2 to a specific position on the main shaft 1. Tightening bolt 4 outwards loosens bolt 4, allowing adjustment of the position of adjustment structure 2 on the main shaft 1.

[0055] Furthermore, each adjustment structure 2 is provided with at least one bolt 4. The more bolts 4 on a single adjustment structure 2, the higher the reliability of the connection between the adjustment structure 2 and the main shaft 1, the better the repeatability of the experiment, and correspondingly, the higher the reliability of the experimental results.

[0056] Furthermore, each adjusting structure 2 is provided with multiple bolts 4, and all the bolts 4 on a single adjusting structure 2 are distributed in a ring around the axis of the adjusting structure 2 to clamp the main shaft 1 in a ring, further improving the connection reliability between the adjusting structure 2 and the main shaft 1. For example, Figure 4 Four bolts 4 are installed on each adjustment structure 2.

[0057] In some embodiments, the length direction of the stirring tooth 3 is radial to that of the adjusting structure 2. The connection length between the stirring tooth 3 and the adjusting structure 2 in the radial direction is adjustable to adjust the length of the stirring tooth 3 in the radial direction of the adjusting structure 2. For example, the stirring tooth and the adjusting structure are slidably connected, and the connection length between the stirring tooth and the adjusting structure in the radial direction of the adjusting structure is limited by an additional locking device or a detachable limiting structure, which is not shown in the figure. Alternatively, the adjusting structure 2 and the stirring tooth 3 are threadedly connected, and the connection length between the stirring tooth 3 and the adjusting structure 2 in the radial direction of the adjusting structure 2 is changed by adjusting the threaded connection length, such as... Figure 4 As shown.

[0058] Furthermore, the inner diameter of the adjusting structure 2 is matched with the outer diameter of the main shaft 1, so that the axis of the adjusting structure 2 is close to or collinear with the axis of the main shaft 1, and the stirring teeth 3 are basically or completely parallel to the radial direction of the main shaft 1. In order to adjust the connection length between the stirring teeth 3 and the adjusting structure 2 in the radial direction of the main shaft 1, the rotation radius of all stirring teeth 3 is basically or completely consistent.

[0059] Furthermore, the stirring teeth 3 and the adjusting structure 2 are detachably connected to facilitate the replacement of the stirring teeth 3 or the adjustment of the connection length between the stirring teeth 3 and the adjusting structure 2 in the radial direction of the adjusting structure 2.

[0060] In some embodiments, the adjustment structure 2 is threadedly connected to the stirring teeth 3.

[0061] In some embodiments, the adjustment structure 2 includes:

[0062] An axial adjusting component 21 is sleeved on the main shaft 1. The axial adjusting component 21 can slide in the direction of the axis of the main shaft 1 and can also rotate around the axis of the main shaft 1. The bolt 4 passes through the axial adjusting component 21 and is threadedly connected to the axial adjusting component 21, and then abuts against the main shaft 1.

[0063] Radial adjusting member 22 is provided on the outer side of each axial adjusting member 21, along the radial direction of the axial adjusting member 21. The radial adjusting member 22 is fixedly connected to the axial adjusting member 21 or detachably connected. Each radial adjusting member 22 is connected to at most one stirring tooth 3.

[0064] Furthermore, the radial adjustment element 22 corresponds one-to-one with the stirring tooth 3, and each stirring tooth 3 is threadedly connected to its corresponding radial adjustment element 22.

[0065] Furthermore, the stirring teeth 3 are inserted into the radial adjustment member 22 and threadedly connected to the radial adjustment member 22.

[0066] Furthermore, the granulator also has an anti-loosening structure 15, which is used to improve the connection reliability between the radial adjustment component 22 and the stirring tooth 3, and to prevent the connection between the stirring tooth 3 and the radial adjustment component 22 from loosening due to friction and collision between the stirring tooth 3 and the carbon black during the experiment, so as to reduce experimental errors.

[0067] Furthermore, the anti-loosening principle of the anti-loosening structure 15 includes, but is not limited to, the following two:

[0068] The first type is a buckle or clamp. This type of anti-loosening structure is detachably connected to the connection between the stirring tooth 3 and the radial adjustment component 22. By applying pressure to the connection between the stirring tooth 3 and the radial adjustment component 22, the friction between the stirring tooth 3 and the radial adjustment component 22 is increased, thereby achieving anti-loosening, which is not shown in the figure.

[0069] The second type of anti-loosening structure 15 achieves anti-loosening by connecting multiple agitators 3 in series. The anti-loosening effect is optimal when all the agitators 3 of this type of anti-loosening structure 15 are distributed along the same spiral line or the same straight line. Figure 3 As shown.

[0070] In some embodiments, the radial adjustment member 22 is fixedly connected to the axial adjustment member 21 to improve the connection reliability between the radial adjustment member 22 and the axial adjustment member 21.

[0071] Furthermore, the radial adjustment element 22 is welded to the axial adjustment element 21.

[0072] In some embodiments, the granulator further includes at least one anti-loosening steel wire 5, which is connected in series with bolts 4 on multiple adjusting structures 2. The tighter the anti-loosening steel wire 5 is stretched, the better its anti-loosening effect on the bolts 4 it is connected to.

[0073] Furthermore, the optimal anti-loosening effect is achieved when all bolts 4 connected in series with a single anti-loosening wire 5 are distributed along the same spiral or straight line.

[0074] In some embodiments, the drive device 13 is a geared motor, which has the advantages of compact structure and high transmission efficiency compared with the drive device 13 with pulley structure.

[0075] Furthermore, the granulator also includes a coupling 12, through which the output shaft of the geared motor is connected to one end of the main shaft 1.

[0076] Furthermore, the granulator also includes a protective cover 11, with a coupling 12 located within the protective cover 11. The output shaft of the geared motor and the main shaft 1 are inserted into the protective cover 11 and connected to the coupling 12. The protective cover 11 prevents dust, water, and other contaminants from entering the coupling 12, thus extending the service life of the coupling 12.

[0077] Furthermore, the coupling 12 is a flexible coupling 12, which has a shock absorption and buffering function, and helps to extend the service life of the granulator.

[0078] In some embodiments, a vibration detector is mounted on the cylinder 6 to detect the vibration amplitude of the cylinder 6. When the detection result of the vibration detector is greater than a preset value, the granulator is in an abnormal working state. At this time, the granulator should be stopped to prevent damage to the granulator caused by granulator failure or abnormal material ratio inside the cylinder 6, thereby protecting the granulator.

[0079] Furthermore, the vibration detector, drive device 13, and water supply device for conveying granulation water to the cylinder 6 are all connected to the same control device. The preset value is entered into the control device. When the control device determines that the detection result of the vibration detector is greater than the preset value, the control device controls the drive device 13 and the water supply device to shut down.

[0080] In some embodiments, a sampler 7 is provided at the bottom of the cylinder 6, through which a portion of the carbon black sample can be taken out from the cylinder 6 to observe the granulation state of the carbon black inside the cylinder 6.

[0081] In some embodiments, an observation port is provided at the top of the cylinder 6, and an observation cover 8 is detachably connected to the observation port, through which the internal state of the granulator can be directly observed.

[0082] In some embodiments, the granulator also includes a base 10 for supporting the cylinder 6.

[0083] Furthermore, the bottom of the drive unit 13 is supported by the base 10.

[0084] Furthermore, the base 10 is provided with two bearing seats 9, each bearing seat 9 is equipped with a bearing 14, the bearing seat 9 is connected to the outer ring of the bearing 14, and the spindle 1 is connected to the inner ring of the bearing 14.

[0085] In some embodiments, the main shaft 1 is detachably connected to the cylinder 6 so as to add the variable of the shape and size of the cylinder 6 in the granulation experiment. This helps carbon black manufacturers to select or manufacture a wet granulator with a higher carbon black product qualification rate by combining at least one of the following factors: the layout of the stirring teeth 3, the granulation water flow rate, the rotation speed of the main shaft 1, and the shape and size of the cylinder 6.

[0086] Furthermore, the cylinder 6 is a detachable structure.

[0087] Furthermore, the cylinder 6 includes an upper shell 61, a lower shell 62, and end caps 63. The upper shell 61 and the lower shell 62 are detachably connected to form a cylinder. Two end caps 63 are provided at both ends of the cylinder, and each end cap 63 is detachably connected to the upper shell 61 and the lower shell 62. The space formed between the upper shell 61, the lower shell 62, and the two end caps 63 is the granulation space. The two ends of the main shaft 1 pass through the two end caps 63 respectively, and the main shaft 1 is rotatably connected to the two end caps 63. To ensure the airtightness of the granulation space, the upper shell 61 and the lower shell 62 are sealed together, and the connection between each end cap 63 and the upper shell 61 and the lower shell 62 is also a sealed connection.

[0088] Furthermore, the cylinder 6 also includes packing 66 and pressure caps 64. Each end cap 63 is connected to a pressure cap 64 on its outer side, and a packing 66 is provided between each end cap 63 and its adjacent pressure cap 64. The packing 66 abuts against the end cap 63 and the pressure cap 64 to further improve the sealing effect at the connection between the end cap 63 and the main shaft 1. Both ends of the main shaft 1 pass through two packing 66 and their adjacent pressure caps 64, respectively, and the main shaft 1 and the two pressure caps 64 are rotatably connected.

[0089] Furthermore, a granulation water inlet 65 is provided on the cylinder 6, and the granulation water inlet 65 is located on the top of the upper shell 61.

[0090] Furthermore, a sampler 7 is provided on the cylinder 6, and the sampler 7 is located at the bottom of the lower shell 62.

[0091] Furthermore, the cylinder 6 is provided with an observation port and an observation cover 8. The observation port is located on the top of the upper shell 61, and the observation cover 8 is detachably connected to the observation port.

[0092] Furthermore, the granulator has a base 10, and the lower cylinder 6 is fixedly or detachably connected to the base 10.

[0093] Through the description of several embodiments of the laboratory pyrolysis carbon black granulator provided by this utility model, it can be seen that the embodiments of the laboratory pyrolysis carbon black granulator provided by this utility model have at least one or more of the following advantages:

[0094] In this invention, the main shaft 1 of the granulator is equipped with an adjustment structure 2 that can be adjusted in position along the axial and / or circumferential direction of the main shaft 1. The stirring teeth 3 are set on the main shaft 1. By adjusting the position of the adjustment structure 2, the layout of the stirring teeth 3 of the granulator can be changed, so that granulation experiments with various stirring tooth 3 layouts can be carried out for carbon black products with different performance. This helps carbon black manufacturers to select or manufacture wet granulators with higher carbon black product qualification rates based on the angle of the stirring tooth 3 layout.

[0095] In this invention, the connection length between the stirring teeth 3 and the adjusting structure 2 in the radial direction of the adjusting structure 2 is adjustable so that the rotation radius of all the stirring teeth 3 is basically or completely consistent.

[0096] This invention uses a geared motor to drive the main shaft 1 to rotate, resulting in a compact structure and high transmission efficiency.

[0097] This invention features a vibration detector on the cylinder 6. By analyzing the detection results of the vibration detector, the granulator can be shut down in a timely manner when it is in an abnormal operating condition, thus protecting the granulator.

[0098] In this invention, the granulator cylinder 6 is replaceable, the granulation water flow rate is adjustable, and the output speed of the drive device 13 is adjustable. This helps carbon black manufacturers select or manufacture a wet granulator with a higher carbon black product qualification rate by combining at least one of the following factors: the layout of the stirring teeth 3, the granulation water flow rate, the speed of the main shaft 1, and the shape and size of the cylinder 6.

[0099] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. Figure 1-4 The above-described combination of embodiments is merely one possible arrangement and is not intended to limit the possible arrangements of embodiments of this utility model.

[0100] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A laboratory-grade pyrolysis carbon black granulator, characterized in that, include: cylindrical body; The main shaft is rotatably connected to the cylinder. Multiple adjustment structures are provided along the axis of the main shaft, and the position of each adjustment structure on the main shaft can be adjusted along the axis of the main shaft and / or the circumferential direction of the main shaft; At least one stirring tooth is provided on each adjustment structure.

2. The laboratory pyrolysis carbon black granulator according to claim 1, characterized in that, The adjusting structure is mounted on the main shaft; the granulator also includes bolts; The bolt passes through the adjustment structure and is threadedly connected to the adjustment structure to abut against the main shaft; at least one bolt is provided on each adjustment structure.

3. The laboratory pyrolysis carbon black granulator according to claim 1, characterized in that, The length direction of the stirring teeth is the radial direction of the adjustment structure; the connection length between the stirring teeth and the adjustment structure in the radial direction of the adjustment structure is adjustable.

4. The laboratory pyrolysis carbon black granulator according to claim 3, characterized in that, The adjustment structure includes: Axial adjusting component, which is sleeved on the main shaft; Radial adjustment components are provided on the outer side of each axial adjustment component, and each radial adjustment component is connected to at most one agitator tooth.

5. The laboratory pyrolysis carbon black granulator according to claim 3, characterized in that, The adjustment structure is connected to the spiral tooth thread.

6. The laboratory pyrolysis carbon black granulator according to claim 2, characterized in that, The granulator also includes: anti-loosening steel wire, which is connected in series with bolts on multiple adjustment structures.

7. The laboratory pyrolysis carbon black granulator according to any one of claims 1-6, characterized in that, The main shaft and the cylinder are detachably connected.

8. The laboratory pyrolysis carbon black granulator according to any one of claims 1-6, characterized in that, The granulator also has a granulation water flow rate adjustment structure, which is connected to the top of the cylinder.

9. The laboratory pyrolysis carbon black granulator according to any one of claims 1-6, characterized in that, The granulator also includes a geared motor, which is connected to the main shaft.

10. The laboratory pyrolysis carbon black granulator according to any one of claims 1-6, characterized in that, The granulator also includes a vibration detector, which is mounted on the cylinder.

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