An internal feeding air separator

Abstract

The utility model belongs to tobacco equipment technical field discloses an inner feeding type winnower for carrying out winnowing to cut stem, this inner feeding type winnower includes casing, shunt shuttle and adjusting assembly, wherein, the bottom of casing is provided with air inlet, and the air inlet is communicated with outside. The shunt shuttle is arranged directly above the air inlet, and the shunt shuttle is of a shuttle-shaped structure and can pass through the air inlet. The adjusting assembly comprises a telescopic arm and a support. The support is arranged on the inner side wall of the bottom of the casing. One end of the telescopic arm is bolted to the support, and the other end is bolted to the shunt shuttle. The adjusting assembly can adjust the vertical movement of the shunt shuttle, thereby adjusting the air inlet area. The inner feeding type winnower adjusts the position of the shunt shuttle through the adjusting assembly, improves the versatility and adaptability of the inner feeding type winnower, reduces the operation complexity and production cost, and improves the winnowing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tobacco equipment technology, and in particular to an internally fed air separator. Background Technology

[0002] In the high-end tobacco sector (such as for slim cigarettes and cigar stems / stems), internally fed air separators are typically used to reduce stem breakage and ensure the integrity of the material's physical form. The airflow guiding device, a key component of the internally fed air separator, plays a crucial role in optimizing airflow distribution, enhancing the relative motion between the airflow and the material, and promoting material dispersion. It is the core structure ensuring effective air separation.

[0003] Existing internal-feed air separators typically use baffle-type airflow guides to regulate the airflow at the bottom. However, the baffle structure easily leads to the accumulation of material falling from above, requiring frequent shutdowns for cleaning and affecting continuous operation efficiency. To address this issue, related technologies use a fixed diversion shuttle in the air inlet area at the bottom of the internal-feed air separator to replace the baffle and regulate the airflow, thus preventing the accumulation of material falling from above. However, in actual industrial production, the characteristics of the materials to be processed often vary significantly. Key parameters such as density and moisture content fluctuate greatly among different materials. Even materials of the same type may exhibit significant characteristic changes due to differences in origin, storage environment, and processing stage. This fixed and non-adjustable design greatly limits the versatility and adaptability of internal-feed air separators. When dealing with multiple varieties, batches, and materials with varying characteristics, the equipment needs frequent shutdowns to replace diversion shuttles with different parameters, increasing operational complexity and production costs, and reducing air separation efficiency.

[0004] Therefore, there is an urgent need to design an internally fed air separator to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an internally fed air separator. This internally fed air separator improves the versatility and adaptability of the internally fed air separator by setting an adjustment component to adjust the position of the diversion shuttle, while also reducing the complexity of operation and production costs, and improving the air separation efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An internally fed air separator for air separating stems and filaments includes:

[0008] The housing has an air inlet at its bottom, which is connected to the outside.

[0009] The flow divider is positioned directly above the air inlet and has a shuttle-shaped structure, allowing it to pass through the air inlet.

[0010] The adjustment assembly includes a telescopic arm and a support. The support is disposed on the inner side wall of the bottom of the housing. One end of the telescopic arm is bolted to the support, and the other end is bolted to the diverter shuttle. The adjustment assembly can adjust the diverter shuttle to move up and down in the vertical direction, thereby adjusting the air intake area at the air inlet.

[0011] Optionally, the telescopic arm includes a first connecting plate, a second connecting plate, and fastening bolts. The first connecting plate has a plurality of first connecting holes arranged sequentially along the length of the first connecting plate. The second connecting plate has a plurality of second connecting holes arranged sequentially along the length of the second connecting plate. The fastening bolts can pass through the first connecting holes and the second connecting holes, and the fastening bolts are used to fix the first connecting plate and the second connecting plate.

[0012] Optionally, both the first connecting hole and the second connecting hole are oblong holes.

[0013] Optionally, both the first connecting plate and the second connecting plate are provided with scale lines.

[0014] Optionally, both the first connecting plate and the second connecting plate are flat steel.

[0015] Optionally, two fastening bolts are provided.

[0016] Optionally, the adjustment components are provided in two sets, and the two sets of adjustment components are arranged opposite each other along the circumferential direction of the diversion shuttle.

[0017] Optionally, the diversion shuttle is provided with a connector for connecting the diversion shuttle and the telescopic arm.

[0018] Optionally, the housing includes an upper housing and a make-up air funnel, the large opening end of the make-up air funnel can be connected to the bottom of the upper housing, the small opening end of the make-up air funnel is the air inlet, and the adjustment component is disposed inside the make-up air funnel.

[0019] Optionally, the air supply funnel is sealed to the upper housing.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides an internally fed air classifier. By setting an adjustment component to adjust the position of the diverting shuttle, the diverting shuttle can move up and down in the vertical direction. As the diverting shuttle passes through the air inlet, the air inlet area at the air inlet can be adjusted, thereby adjusting the wind speed entering the housing. This allows the internally fed air classifier to handle multiple varieties, batches, and materials with varying characteristics without needing to change diverting shuttles with different parameters. It only requires adaptive adjustment of the position of the diverting shuttle according to changes in material characteristics, improving the versatility and adaptability of the internally fed air classifier. At the same time, it also reduces operational complexity and production costs, and improves air classification efficiency. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of the internally fed air separator provided in this embodiment of the utility model;

[0023] Figure 2 This is a cross-sectional view of the upper shell provided in an embodiment of the present utility model;

[0024] Figure 3 yes Figure 1 A magnified view of a section at point A in the middle;

[0025] Figure 4 This is an assembly diagram of the diverter shuttle, connector, and adjustment assembly provided in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the telescopic arm provided in an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the support provided in an embodiment of the present utility model;

[0028] Figure 7 This is a cross-sectional view of the internally fed air separator provided in this embodiment of the utility model when the diversion shuttle is in its lowest position;

[0029] Figure 8 yes Figure 7 A magnified view of a section at point B.

[0030] In the picture:

[0031] 1. Shell; 11. Upper shell; 111. Air separator outlet; 112. Mounting port; 113. Narrow waist; 114. First air separator chamber; 115. Second air separator chamber; 12. Make-up air funnel; 13. Air inlet;

[0032] 2. Feed pipe; 21. Feed end; 22. Discharge end;

[0033] 3. Diverter shuttle;

[0034] 4. Adjustment assembly; 41. Telescopic arm; 411. First connecting plate; 4111. First connecting hole; 412. Second connecting plate; 4121. Second connecting hole; 413. Fastening bolt; 42. Support; 421. Third connecting hole;

[0035] 5. Connectors; 6. Frame. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] like Figures 1 to 8As shown, this embodiment provides an internally fed air separator for air separation of stems. The internally fed air separator includes a housing 1, a diverter shuttle 3, and an adjustment assembly 4. The housing 1 has an air inlet 13 at its bottom, which communicates with the outside. The diverter shuttle 3 is positioned directly above the air inlet 13 and has a spindle-shaped structure, allowing it to pass through the air inlet 13. The adjustment assembly 4 includes a telescopic arm 41 and a support 42. The support 42 is mounted on the inner wall of the bottom of the housing 1. One end of the telescopic arm 41 is bolted to the support 42, and the other end is bolted to the diverter shuttle 3. The adjustment assembly 4 can adjust the vertical movement of the diverter shuttle 3, thereby adjusting the air intake area at the air inlet 13.

[0041] Specifically, since one end of the telescopic arm 41 is bolted to the support 42 and the other end is bolted to the diverter shuttle 3, the telescopic arm 41 can rotate relative to the support 42 when the bolt between the telescopic arm 41 and the support 42 is not tightened, and the telescopic arm 41 can rotate relative to the diverter shuttle 3 when the bolt between the telescopic arm 41 and the diverter shuttle 3 is not tightened. By rotating the telescopic arm 41 and adjusting its length, the position of the diverter shuttle 3 can be adjusted. After the diverter shuttle 3 moves to the target position, the bolts between the telescopic arm 41 and the support 42, as well as the bolts between the telescopic arm 41 and the diverter shuttle 3, are tightened to fix the diverter shuttle 3 at the target position.

[0042] In this embodiment, the internally fed air separator adjusts the position of the diverting shuttle 3 using the adjustment component 4. This allows the diverting shuttle 3 to move vertically up and down, adjusting the air inlet area at the air inlet 13 as it passes through it, thereby adjusting the air velocity entering the housing 1. This allows the internally fed air separator to handle a variety of materials with varying characteristics without needing to replace the diverting shuttle 3 with different parameters. Instead, the position of the diverting shuttle 3 needs to be adjusted adaptively according to changes in material properties. This not only improves the versatility and adaptability of the internally fed air separator but also reduces operational complexity and production costs, while increasing air separation efficiency.

[0043] It should be noted that, under ideal conditions where internal resistance of the equipment is ignored and there is no airflow leakage, according to the law of conservation of flow: wind speed = air volumetric flow rate ÷ air inlet area, that is, there is a clear inverse proportional relationship between wind speed and air inlet area. When separating light impurities, the diverting shuttle 3 is moved vertically upward, away from the air inlet 13, which increases the air inlet area at the air inlet 13, thereby reducing the wind speed entering the housing 1 and preventing the useful material from being mistakenly carried away by excessive wind speed; when separating heavier impurities, the diverting shuttle 3 is moved vertically downward and passes through the air inlet 13, which reduces the air inlet area at the air inlet 13, thereby increasing the wind speed entering the housing 1, ensuring that the airflow can blow away impurities but does not affect the falling of useful materials.

[0044] Optionally, such as Figure 1 As shown, in this embodiment, the housing 1 includes an upper housing 11 and a make-up air funnel 12. The large opening end of the make-up air funnel 12 can be connected to the bottom of the upper housing 11, and the small opening end of the make-up air funnel 12 is an air inlet 13. The adjustment component 4 is disposed inside the make-up air funnel 12.

[0045] Specifically, such as Figure 1 and Figure 2 As shown, the cross-sectional shape of the shell 1 is roughly fish-shaped, comprising an upper ellipsoidal shell and a lower hemispherical shell. One end of the ellipsoidal shell is connected to the top of the hemispherical shell, and a narrow waist 113 is formed at the junction of the two. A first air-separating chamber 114 is formed above the narrow waist 113, and a second air-separating chamber 115 is formed below the narrow waist 113. By setting the shell 1 to a streamlined structure, the breakage of the stems when they come into contact with the shell 1 can be reduced. By setting the first air-separating chamber 114 and the second air-separating chamber 115 to perform secondary air separation of the material, the air separation effect can be improved.

[0046] The large opening end of the make-up air funnel 12 is detachably connected to the bottom of the housing 1, and the small opening end of the make-up air funnel 12 serves as the air inlet 13, which can communicate with the outside. The airflow can pass through the small opening end of the make-up air funnel 12, pass through the diversion shuttle 3, and enter the interior of the housing 1, where it performs air separation on the materials in the second air separation chamber 115.

[0047] The adjustment component 4 is located inside the air supply funnel 12. Specifically, the support 42 is located on the inner wall of the air supply funnel 12, and the telescopic arm 41 is connected to the support 42 and located inside the air supply funnel 12. By designing the housing 1 to include an upper housing 11 and an air supply funnel 12, with the air supply funnel 12 detachably connected to the bottom of the housing 1, and by placing the adjustment component 4 inside the air supply funnel 12, it is convenient to disassemble, assemble, and adjust the diverter shuttle 3 and the adjustment component 4.

[0048] It is understood that in some other embodiments, the housing 1 may also be a one-piece structure, for example, the housing 1 may be a gourd-shaped structure, in which case the air inlet 13 is directly opened at the bottom of the housing 1, and the adjustment component 4 and the diverter 3 are both set in the air inlet area at the bottom of the housing 1.

[0049] Optionally, in this embodiment, the upper shell 11 is a structural component made of a transparent material, such as transparent nylon or PC. By using a transparent upper shell 11, it is convenient to observe the separation state of the stems, the air separation effect, and the discharge of impurities in real time during the air separation process, which helps to adjust the position of the diverter shuttle 3 in a timely manner to optimize the separation efficiency.

[0050] Furthermore, the air supply funnel 12 is sealed to the upper housing 11. This arrangement improves the sealing between the air supply funnel 12 and the upper housing 11, thereby preventing air leakage between them and affecting the air separation effect.

[0051] Optionally, such as Figure 3 and Figure 5 As shown, in this embodiment, the telescopic arm 41 includes a first connecting plate 411, a second connecting plate 412, and fastening bolts 413. The first connecting plate 411 has multiple first connecting holes 4111 arranged sequentially along its length. The second connecting plate 412 has multiple second connecting holes 4121 arranged sequentially along its length. The fastening bolts 413 can pass through the first connecting holes 4111 and the second connecting holes 4121, and are used to fix the first connecting plate 411 and the second connecting plate 412. This telescopic arm 41 has a simple structure, is easy to adjust, and has low production costs.

[0052] Specifically, both the first connecting plate 411 and the second connecting plate 412 are elongated plate structures. When the first connecting plate 411 and the second connecting plate 412 are partially stacked along their length, some of the first connecting holes 4111 and the second connecting holes 4121 can communicate, forming through holes through which fastening bolts 413 can pass. When adjusting the length of the telescopic arm 41, the fastening bolts 413 are first removed from the first connecting plate 411 and the second connecting plate 412. Then, the length of the stacked portion is adjusted along the length of the first connecting plate 411 or the second connecting plate 412. After the adjustment is completed, the first connecting plate 411 and the second connecting plate 412 are locked and fixed with the fastening bolts 413, thereby realizing the adjustment of the length of the telescopic arm 41.

[0053] It is understood that in some other embodiments, other types of telescopic arms 41 may also be used, such as sleeve-type telescopic arms, which are not limited here.

[0054] Further optional, such as Figure 5 As shown, in this embodiment, both the first connecting hole 4111 and the second connecting hole 4121 are oblong holes. The oblong holes have a certain length, which can reduce the number of openings on the first connecting plate 411 and the second connecting plate 412. Moreover, the length direction of the oblong holes can accommodate a certain positional deviation. Only a rough alignment is needed to insert the fastening bolt 413, and then adjust it to a suitable position along the length direction for fixing, which can greatly reduce the installation difficulty.

[0055] It is understood that in some other embodiments, the first connecting hole 4111 and the second connecting hole 4121 may also be holes of other shapes, as long as it is ensured that the fastening bolt 413 can pass through the first connecting hole 4111 and the second connecting hole 4121, and there is no limitation here.

[0056] Alternatively, in this embodiment, both the first connecting plate 411 and the second connecting plate 412 are flat steel. The flat steel has a regular rectangular cross-section and uniform material distribution. Compared with round steel or wire of the same weight, its cross-sectional moment of inertia is larger, which can ensure stable support for the diversion shuttle 3. At the same time, the flat steel has a stable structure, is easy to process, and can reduce production costs.

[0057] It is understood that in some other embodiments, the materials of the first connecting plate 411 and the second connecting plate 412 may also be selected from other types according to actual needs, and no restrictions are imposed here.

[0058] Furthermore, in this embodiment, both the first connecting plate 411 and the second connecting plate 412 are provided with scale lines. By setting scale lines, it is easier for operators to adjust the length of the telescopic arm 41 more precisely, thereby improving the position adjustment accuracy of the diverter 3 and ensuring the air separation effect.

[0059] Alternatively, in this embodiment, two fastening bolts 413 are provided. By providing two fastening bolts 413, not only can the fixing effect on the first connecting plate 411 and the second connecting plate 412 be enhanced, but relative rotation between the first connecting plate 411 and the second connecting plate 412 can also be avoided, further ensuring the stability of the diversion shuttle 3.

[0060] It is understood that in some other embodiments, the number of fastening bolts 413 can be set according to actual needs and is not limited here.

[0061] Optionally, such as Figure 3 and Figure 6 As shown, in this embodiment, the support 42 is a plate-like structure with an inclined side. Specifically, the end of the support 42 connected to the air supply funnel 12 has an inclined surface, and the inclination angle of the inclined surface is the same as the inclination angle of the inner sidewall of the air supply funnel 12, thereby facilitating the fixing of the support 42 to the inner sidewall of the air supply funnel 12. The end of the support 42 connected to the telescopic arm 41 has a third connecting hole 421, which can communicate with the first connecting hole 4111 or the second connecting hole 4121, thereby realizing the bolted hinge connection between the support 42 and the telescopic arm 41.

[0062] It is understood that in some other embodiments, the support 42 may also be designed as other structures according to actual needs, and no restrictions are imposed here.

[0063] Alternatively, in this embodiment, the support 42 is welded and fixed to the inner wall of the air supply funnel 12.

[0064] Optionally, such as Figure 4 As shown, in this embodiment, two sets of adjustment components 4 are provided, and the two sets of adjustment components 4 are arranged opposite each other around the circumference of the diversion shuttle 3. Specifically, the two sets of adjustment components 4 are symmetrically distributed at 180° around the diversion shuttle 3. By setting two sets of adjustment components 4 to adjust the diversion shuttle 3 simultaneously, the stability of the diversion shuttle 3 during the adjustment process can be further enhanced. Moreover, while ensuring the stability of the diversion shuttle 3, the two sets of adjustment components 4 are few in number, making it convenient for operators to perform adjustment operations.

[0065] It is understood that in some other embodiments, the number of adjustment components 4 can also be set according to actual needs, such as one set, three sets, etc., and there is no limitation here.

[0066] Furthermore, such as Figure 3 and Figure 4 As shown, a connector 5 is provided on the diversion shuttle 3, which is used to connect the diversion shuttle 3 and the telescopic arm 41. By providing the connector 5, the connection between the diversion shuttle 3 and the telescopic arm 41 is facilitated. Optionally, in this embodiment, the connector 5 is a clamp. The clamp can be fixedly installed on the diversion shuttle 3 and can also be bolted to the telescopic arm 41. Moreover, the clamp has a simple structure, is easy to operate, and has a low cost.

[0067] It should be noted that the clamp is existing technology, and its specific structure can be adaptively adjusted according to the number of adjustment components 4, which will not be elaborated here.

[0068] It is understood that in some other embodiments, the connector 5 may also adopt other structures, such as the connector 5 being a connecting ear provided on the diverter shuttle 3, the number of connecting ears corresponding to the number of adjustment components 4, and the connecting ear may be integrally formed with the diverter shuttle 3, without limitation.

[0069] like Figure 1 and Figure 2As shown, the internally fed air separator also includes a feed pipe 2, which includes an inlet end 21 and an outlet end 22. The inlet end 21 can be connected to an external feeding device, and the outlet end 22 is located in the middle of the first air separation chamber 114 to supply material into the housing 1. Specifically, the housing 1 also has an installation port 112, which is located near the air separation outlet 111 and below it. The feed pipe 2 can pass through the installation port 112 and be installed on the housing 1. The feed pipe 2 is used for feeding material, thereby enabling the material to enter. The material to be air-separated enters from the inlet end 21, which is also connected to an external blower, so that the material in the feed pipe 2 can be blown out from the outlet end 22 and enter the housing 1 for air separation.

[0070] Furthermore, such as Figure 1 As shown, the cross-sectional area of ​​the feed pipe 2 gradually decreases from the feed end 21 to the discharge end 22, specifically because the change in the movement speed of the wire gradually decreases. This design avoids the wind speed and volume inside the feed pipe 2 affecting the air separation inside the housing 1, thereby improving the air separation effect and reliability of the internally fed air separator. Simultaneously, the bent pipe shape facilitates the feed pipe 2 passing through the mounting port 112. After the feed pipe 2 is installed on the housing 1, while ensuring that the discharge end 22 of the feed pipe 2 is vertically downward, the feed end 21 of the feed pipe 2 is inclined upward, thus facilitating feeding and discharging.

[0071] like Figure 1 As shown, the internally fed air separator also includes a frame 6, with the upper housing 11 and the make-up air funnel 12 both mounted on the frame 6. The frame 6 supports the upper housing 11 and the make-up air funnel 12, which improves the stability of the air separation process. Furthermore, it facilitates the handling of the internally fed air separator by operators when it needs to be moved.

[0072] The internally fed air separator provided in this embodiment is operated as follows:

[0073] like Figure 1 and Figure 3 As shown, when the diversion shuttle 3 is located at its maximum cross-section and the support 42 are on the same horizontal plane, the diversion shuttle 3 is positioned above the air inlet 13, and the telescopic arm 41 is horizontally set. At this time, the air inlet area at the air inlet 13 is at its maximum, and the air inlet area is equal to the opening size of the air inlet 13. Figure 7 and Figure 8As shown, when the diverter shuttle 3 moves vertically downwards to its maximum extension length with the telescopic arm 41, part of the diverter shuttle 3 is inserted into the air inlet 13, and at this time, the air intake area at the air inlet 13 is at its minimum. The air intake area is equal to the cross-sectional area of ​​the air inlet 13 minus the cross-sectional area of ​​the diverter shuttle 3 at the air inlet 13. The operator adjusts the rotation of the telescopic arm 41 and adjusts its length, thereby moving the diverter shuttle 3 vertically up and down, and thus adjusting the air intake area at the air inlet 13.

[0074] The internally fed air separator provided in this embodiment improves the versatility and adaptability of the internally fed air separator by adjusting the position of the diversion shuttle 3 using the adjustment component 4. This allows the internally fed air separator to adapt to changes in the position of the diversion shuttle 3 based on the material characteristics when dealing with multiple varieties, batches, and materials with varying properties, without needing to replace the diversion shuttle 3 with different parameters. This not only reduces operational complexity and production costs but also improves air separation efficiency.

[0075] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An internally fed air separator for air separating stems, characterized in that, include: The housing (1) has an air inlet (13) at its bottom, which is connected to the outside. The diversion shuttle (3) is located directly above the air inlet (13). The diversion shuttle (3) has a shuttle-shaped structure and can pass through the air inlet (13). Adjustment component (4), the adjustment component (4) includes telescopic arm (41) and support (42), the support (42) is disposed on the inner side wall of the bottom of the housing (1), one end of the telescopic arm (41) is bolted to the support (42), and the other end is bolted to the diverter shuttle (3), the adjustment component (4) can adjust the diverter shuttle (3) to move up and down in the vertical direction, thereby adjusting the air intake area at the air inlet (13).

2. The internally fed air separator according to claim 1, characterized in that, The telescopic arm (41) includes a first connecting plate (411), a second connecting plate (412), and fastening bolts (413). The first connecting plate (411) has a plurality of first connecting holes (4111) arranged sequentially along the length of the first connecting plate (411). The second connecting plate (412) has a plurality of second connecting holes (4121) arranged sequentially along the length of the second connecting plate (412). The fastening bolts (413) can pass through the first connecting holes (4111) and the second connecting holes (4121). The fastening bolts (413) are used to fix the first connecting plate (411) and the second connecting plate (412).

3. The internally fed air separator according to claim 2, characterized in that, Both the first connecting hole (4111) and the second connecting hole (4121) are oblong holes.

4. The internally fed air separator according to claim 2, characterized in that, Both the first connecting plate (411) and the second connecting plate (412) are provided with scale lines.

5. The internally fed air separator according to claim 2, characterized in that, Both the first connecting plate (411) and the second connecting plate (412) are flat steel.

6. The internally fed air separator according to claim 2, characterized in that, Two fastening bolts (413) are provided.

7. The internally fed air separator according to any one of claims 1-6, characterized in that, The adjustment components (4) are provided in two sets, and the two sets of adjustment components (4) are arranged opposite each other circumferentially along the diversion shuttle (3).

8. The internally fed air separator according to claim 1, characterized in that, The diversion shuttle (3) is provided with a connector (5), which is used to connect the diversion shuttle (3) and the telescopic arm (41).

9. The internally fed air separator according to claim 1, characterized in that, The housing (1) includes an upper housing (11) and a make-up air funnel (12). The large opening end of the make-up air funnel (12) can be connected to the bottom of the upper housing (11). The small opening end of the make-up air funnel (12) is the air inlet (13). The adjustment component (4) is disposed inside the make-up air funnel (12).

10. The internally fed air separator according to claim 9, characterized in that, The air supply funnel (12) is sealed to the upper shell (11).

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