Bulk material type air locking feeder

Abstract

The utility model discloses a bulk material type airlock feeder which comprises a conveying shell used for airlock feeding and a star wheel, a horizontally sliding jacking plate is arranged on the side wall, not passing through materials, of the conveying shell in a sliding mode, a scraper is arranged at the end, facing the surface of the star wheel, of the jacking plate, a jacking assembly is arranged on the jacking plate, and the scraper is arranged on the jacking assembly. And a stepped groove is formed in the sliding position of the transmission shell and the jacking and pressing plate, and the stepped groove is used for containing the scraper to enable the top face of the star wheel to pass through. The problem that in the prior art, due to the fact that the viscosity of materials is too large, the materials adhere to the inner wall of an air-locking feeder, and then the air-locking feeder is blocked is solved.

Description

Technical Field

[0001] This utility model relates to the field of bulk material handling technology, specifically to a bulk material type airlock feeder. Background Technology

[0002] A bulk material airlock feeder is a device used in bulk material handling systems. It primarily functions as an airlock and a feeder. The airlock prevents air from entering or leaving the system unnecessarily, ensuring stable pressure and normal material transport. The feeding function distributes the bulk material evenly to subsequent equipment or processes at a controlled speed and quantity.

[0003] In existing bulk material airlock feeders, during the material transmission process, the material may adhere to the inner wall of the feeder due to its high viscosity. Over time, the blockage of the material will cause the feeder to malfunction or have difficulty operating, which will increase the motor load and, in severe cases, damage the motor. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art where materials are too viscous and adhere to the inner wall of the airlock feeder, thus causing blockage of the airlock feeder, and to provide a bulk material type airlock feeder.

[0005] To address the shortcomings of the aforementioned technical problems, the present invention adopts the following technical solution: a bulk material airlock feeder, comprising a transmission housing and a star wheel for airlock feeding. A horizontally sliding top pressure plate is provided on the side wall of the transmission housing that does not pass through the material. A scraper is provided at one end of the top pressure plate facing the surface of the star wheel, and a top pressure assembly is provided on the top pressure plate to drive the scraper to press against the surface of the star wheel. A stepped groove is provided at the sliding point between the transmission housing and the top pressure plate, and the stepped groove is used to receive the scraper so that the top surface of the star wheel can pass through.

[0006] As a further optimization of the bulk material lock air feeder of this utility model: the top pressure component includes a magnetic strip disposed inside the scraper, and the magnetic strip is magnetically connected to the star wheel.

[0007] As a further optimization of the bulk material lock air feeder of this utility model: the top pressure assembly includes a top plate fixedly disposed at one end of the top pressure plate that extends out of the transmission housing, and a tension spring is provided between the top plate and the transmission housing so that the top pressure plate drives the scraper to press against the surface of the star wheel.

[0008] As a further optimization of the bulk material type airlock feeder of this utility model: the stepped groove is closed by stepped strips, and the center of the stepped strips slides in conjunction with the top pressure plate.

[0009] As a further optimization of the bulk material type airlock feeder of this utility model: a sealing ring is provided at the sliding contact between the top pressure plate and the stepped strip.

[0010] As a further optimization of the bulk material type airlock feeder of this utility model: the stepped groove and the stepped strip are detachably connected by screws.

[0011] As a further optimization of the bulk material type airlock feeder of this utility model: the top pressure plate is rectangular to limit the axial rotation of the top pressure plate.

[0012] As a further optimization of the bulk material airlock feeder of this utility model: the cross-section of the scraper is set in a conical shape.

[0013] As a further optimization of the bulk material type airlock feeder of this utility model: the scraper is set higher or lower than the top pressure plate at any end away from the top pressure plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention uses a top-pressing component to work with a top-pressing plate to press the scraper against the surface of the star wheel. As the star wheel rotates, the scraper removes the adhesive material from its surface. Simultaneously, the scraper can be housed inside the transmission housing to scrape off the adhesive material on the top surface of the star wheel. This allows the top surface of the star wheel to scrape off the material from the inner wall of the transmission housing, thereby ensuring that the adhesive material is continuously discharged from the outlet of the transmission housing, reducing the possibility of blockage inside the transmission housing. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural diagram of Embodiment 1 of the present invention;

[0017] Figure 2 This is a front view structural diagram of Embodiment 2 of the present invention;

[0018] Figure 3 This is a partially enlarged structural schematic diagram of Embodiment 3 of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of Embodiment 2 of the present invention;

[0020] Figure 5 This is a front view structural diagram of Embodiment 2 of the present invention;

[0021] Figure 6 This is a partially enlarged structural diagram of Embodiment 2 of the present invention;

[0022] The markings in the diagram are: 1. Transmission housing; 2. Star wheel; 3. Stepped groove; 4. Stepped strip; 5. Top pressure assembly; 501. Top plate; 502. Tension spring; 503. Magnetic strip; 6. Top pressure plate; 7. Sealing ring; 8. Scraper. Detailed Implementation

[0023] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0024] Example 1

[0025] like Figure 1-3 As shown, a bulk material airlock feeder, similar to existing technologies, includes a transmission housing 1 for assisting airlock feeding. A star wheel 2 is rotatably connected to the center of the transmission housing 1. The star wheel 2 is driven by a motor to circulate through the inlet and outlet of the transmission housing 1 to achieve feeding. Furthermore, as the star wheel 2 passes through the inlet and outlet, it can relatively seal the inlet and outlet to achieve airlock.

[0026] During the feeding process, the material is driven by the star wheel 2 and passes only through one side wall of the transmission housing 1, that is, the side wall that is divided by the inlet and outlet and faces the rotation direction of the star wheel 2. Therefore, the other side wall of the transmission housing 1, which is divided by the inlet and outlet, does not need to have a high degree of sealing.

[0027] A horizontally sliding top pressure plate 6 is provided on the side wall of the transmission housing 1 where sealing requirements are lower. A top pressure assembly 5 is provided on the top pressure plate 6. A scraper 8 is fixedly mounted on the side of the top pressure plate 6 facing inwards from the transmission housing 1. The scraper 8, in conjunction with the top pressure plate 6 driven by the top pressure assembly 5, presses against the outer surface of the star wheel 2. During the rotation of the star wheel 2, this scrapes away material adhering to its outer surface. The scraped material is transported by the continuously rotating star wheel 2 to mix with the incoming new material and is discharged from the outlet. Simultaneously, the cleaner star wheel 2 will pass over the side of the transmission housing 1 where sealing requirements are higher during subsequent rotations, further reducing material adhering to the inner wall of the transmission housing 1. After repeating the above operation, the probability of blockage inside the transmission housing 1 is reduced. Specifically, the top pressure assembly 5 includes a magnetic strip 503 fixedly mounted on the scraper 8. The magnetic strip 503 drives the scraper 8 to closely adhere to the surface of the star wheel 2 during its rotation.

[0028] The top pressure plate 6 is rectangular to reduce the possibility of axial rotation, thereby maintaining the relative position of the scraper 8 and allowing the scraper 8 to stably scrape off the material adhering to the surface of the star wheel 2. The top pressure plate 6 is slidably positioned at the center of the stepped strip 4, which is fixed with screws to the stepped groove 3 opened on the side wall of the transmission housing 1 with lower sealing requirements. This facilitates the removal of the stepped strip 4 by workers to replace the top pressure plate 6 and the scraper 8. It also allows workers to perform subsequent maintenance or cleaning of the interior of the transmission housing 1 without disassembling it.

[0029] A sealing ring 7 is provided at the connection between the top pressure plate 6 and the step strip 4. The sealing ring 7 can maintain the sealing of the corresponding side of the transmission housing 1 to a certain extent, thereby ensuring the sealing of the transmission housing 1, that is, reducing the impact of the top pressure plate 6 sliding on the transmission housing 1 on the airlock.

[0030] The scraper 8 is made of rigid plastic material, and its cross-section is tapered to improve the tightness of the contact between the scraper 8 and the surface of the star wheel 2, thereby improving the quality of scraping off the material adhering to the surface of the star wheel 2. The scraper 8 can also be retracted into the groove of the stepped groove 3 facing the interior of the transmission housing 1 to scrape off the adhering material from the relatively sealed top of the star wheel 2 and the inner wall of the transmission housing 1. This allows the star wheel 2 to maintain its airlock function in conjunction with the inner wall of the transmission housing 1 while continuously rotating, and also removes material adhering to the inner wall of the transmission housing 1, reducing the possibility of material blockage.

[0031] Furthermore, the scraper 8 is set with one end higher than the other, centered on the top pressure plate 6. This means that the scraper 8 is set at an angle when it contacts the surface of the star wheel 2. This reduces the possibility that the scraper 8 may not be able to completely remove the sticky material due to excessive overall pressure when scraping it, and also reduces the probability of the scraper 8 being damaged due to excessive pressure.

[0032] Example 2

[0033] like Figure 4-6 As shown, this embodiment has the same basic structure as Embodiment 1, except that the top-pressing component 5 differs from that of Embodiment 1. The top-pressing component 5 includes a top plate 501 fixedly mounted on one end face of the top-pressing plate 6 that extends through the stepped groove 3. A tension spring 502 is provided between the top plate 501 and the stepped strip 4. The tension spring 502 can drive the top plate 501 to move closer to the stepped strip 4 under the support of the stepped strip 4. Then, the top-pressing plate 6 can drive the scraper 8 to stabilize and press the outer surface of the star wheel 2, thereby removing the adhesive on the surface of the star wheel 2. Specifically, there are two tension springs 502. One end of each tension spring 502 is fixedly mounted on both ends of the top plate 501, and the other end of each tension spring 502 is fixedly mounted on the stepped strip 4, so as to drive the top plate 501 in conjunction with the top-pressing plate 6 to make the scraper 8 stabilize and press the surface of the star wheel 2, thereby stably scraping off the adhesive on the surface of the star wheel 2.

[0034] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A bulk type airlock feeder comprising a transmission housing (1) and a star wheel (2) for airlock feeding, characterized in that: The transmission shell (1) is provided with a horizontal sliding top pressing plate (6) on the side wall of the material, the top pressing plate (6) is provided with a scraper (8) at one end of the surface of the star-shaped wheel (2), and the top pressing plate (6) is provided with a top pressing assembly (5) for driving the scraper (8) to press the surface of the star-shaped wheel (2), the transmission shell (1) is provided with a stepped groove (3) at the sliding position of the top pressing plate (6), and the stepped groove (3) is used for accommodating the scraper (8) to pass through the top surface of the star-shaped wheel (2).

2. A lock hopper feeder of the bulk material type as claimed in claim 1, characterized in that: The top pressing assembly (5) comprises a magnetic strip (503) arranged in the scraper (8), and the magnetic strip (503) is magnetically connected with the star-shaped wheel (2).

3. A lock hopper feeder of claim 1 wherein: The top pressing assembly (5) comprises a top plate (501) fixedly arranged at one end of the top pressing plate (6) penetrating the transmission shell (1), and a tension spring (502) is arranged between the top plate (501) and the transmission shell (1), so that the top pressing plate (6) drives the scraper (8) to press the surface of the star-shaped wheel (2).

4. A lock hopper feeder of claim 1 wherein: The stepped groove (3) is closed by a stepped strip (4), and the stepped strip (4) is centrally slidably connected with the top pressing plate (6).

5. A lock hopper feeder of the bulk material type as claimed in claim 4, characterized in that: The sliding connection position of the top pressing plate (6) and the stepped strip (4) is provided with a sealing ring (7).

6. A lock hopper feeder of the bulk material type as claimed in claim 4, characterized in that: The stepped groove (3) and the stepped strip (4) are detachably connected through screws.

7. A lock hopper feeder of claim 1 wherein: The top pressing plate (6) is rectangularly arranged to limit the axial rotation of the top pressing plate (6).

8. A lock hopper feeder of claim 1 wherein: The cross section of the scraper (8) is conical.

9. A lock hopper feeder of claim 1 wherein: Any end of the scraper (8) away from the top pressing plate (6) is higher or lower than the top pressing plate (6).

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