A pneumatic auxiliary screw discharging device

Abstract

The utility model discloses a kind of pneumatic auxiliary spiral discharging devices, wherein, spiral cylinder is inclined to the discharging wall of bunker, and lower port is connected to the wall surface of bunker in penetration;Spiral main body is rotatably installed relative to spiral cylinder by clamping component, in spiral main body, helical surface is set to the part of feed screw in spiral cylinder, one end of feed screw extending to spiral cylinder outside is provided with rotating assembly, rotating assembly can drive feed screw to rotate, feed screw can be fed to move into bunker while being based on thread rotation;Feed screw center is provided with spiral air hole, the side of feed screw close to rotating assembly is provided with gas source interface, gas source interface can be when into gas source to the end of bunker into gas and is purged.By the technical scheme of the utility model, the disposal efficiency of the caked material is ensured, the efficiency and effect of the material dredging are improved, and the stability and convenience of the discharging operation are improved.

Description

Technical Field

[0001] This utility model relates to the field of screw feeding technology, and in particular to a pneumatically assisted screw feeding device. Background Technology

[0002] The auxiliary screw feeder is mainly used for auxiliary feeding at the discharge port of powder silos in the metallurgical industry. It is used to ensure safety after material caking and to comb and connect the materials to ensure stable operation.

[0003] Due to factors such as moisture content and production continuity, current powder silos often experience material caking. On-site handling is often simplistic and crude, with methods such as hammering and using steel bars to clear the blockages proving ineffective. These on-site production problems urgently need to be addressed.

[0004] Currently, the most common auxiliary material feeding methods involve hammering the hopper or creating an observation hole on the side of the feeding port. After the material clumps, the observation door is opened, and steel bars are used to clear and organize it. This method is prone to causing material to scatter and poses a significant safety risk of sudden material descent, creating a safety hazard during on-site use. Other subsequent improvements either fail to effectively clear the material by raising the observation hole position, or the rapping device is unsuitable for the specific on-site conditions, thus failing to effectively address the on-site hazards. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides a pneumatically assisted screw feeding device. Through the integrated structure of the screw cylinder and the hopper, the safety of material handling operations is optimized, preventing material spillage. The coordinated feeding of the screw body and the rhomboid cone ensures efficient handling of agglomerated materials, improving the efficiency and effectiveness of material handling. The pneumatically assisted design enhances material handling and cleaning, improving the stability and convenience of the feeding operation.

[0006] To achieve the above objectives, this utility model provides a pneumatically assisted screw feeding device for auxiliary feeding of silos, comprising: a screw cylinder, a screw body, a clamping assembly, and a rotating assembly;

[0007] The spiral cylinder is inclined relative to the lower wall of the hopper, and the lower end of the spiral cylinder is connected through the wall of the hopper.

[0008] The spiral body is rotatably mounted relative to the spiral cylinder via the snap-fit ​​assembly, and the spiral body includes a feed screw and a spiral surface;

[0009] The helical surface is provided on the portion of the feed screw located inside the helical cylinder. The rotating component is provided at one end of the feed screw extending outside the helical cylinder. The rotating component can drive the feed screw to rotate relative to the snap-fit ​​component. The feed screw can feed and move into the hopper while rotating based on the thread.

[0010] The feed screw has a spiral air hole at its center, and an air source interface is provided on the side of the feed screw near the rotating assembly. The air source interface can introduce gas into one end of the hopper for purging when an air source is introduced.

[0011] In the above technical solution, preferably, the snap-fit ​​assembly includes a split threaded chuck and a fastening bolt, the feed screw is fixed to the center of the split threaded chuck, the set screw of the split threaded chuck is fixed to the inner wall of the spiral cylinder port, and the split threaded chuck is fixed relative to the spiral cylinder by the fastening bolt.

[0012] In the above technical solution, preferably, the spiral body further includes a rhomboid cone, which is disposed at one end of the feed screw near the hopper, and the material is crushed and loosened by the rhomboid cone when the feed screw feeds and moves into the hopper.

[0013] In the above technical solution, preferably, the spiral cylinder includes a spiral bushing, which is embedded in the spiral cylinder and surrounds the spiral surface, providing guidance and support for the spiral surface during the feeding process as the feed screw rotates.

[0014] In the above technical solution, preferably, the rotating assembly includes a rotating chuck and a handle. The rotating chuck is snapped and fixed to the end of the feed screw, and the handle is mounted on the rotating chuck by a positioning pin. When the handle is driven to rotate, it can drive the feed screw to rotate and feed through the rotating chuck.

[0015] In the above technical solution, preferably, the spiral body further includes a screw sleeve, which is disposed between the split thread chuck and the rotating assembly, and surrounds the outer periphery of the feed screw.

[0016] In the above technical solution, preferably, the pneumatically assisted screw feeding device further includes an inner guard plate, which is disposed on the inner side of the hopper near the lower port of the screw cylinder. When the feed screw moves into the hopper, the inner guard plate can open inward.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: the integrated structure of the spiral cylinder and the hopper optimizes the safety of material unblocking operations and avoids material spillage; the coordinated feeding of the spiral body and the rhomboid cone ensures the efficiency of handling agglomerated materials and improves the efficiency and effect of material unblocking; the pneumatic auxiliary design enhances the material unblocking and material blowing and cleaning, and improves the stability and convenience of material unblocking operations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a pneumatically assisted screw feeding device disclosed in one embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation structure of the pneumatically assisted screw feeder relative to the hopper, according to one embodiment of the present invention.

[0020] In the diagram, the correspondence between the components and the reference numerals is as follows:

[0021] 1. Spiral cylinder, 21. Feed screw, 22. Spiral surface, 23. Spiral air hole, 24. Air source interface, 25. Rhomboid cone, 26. Spiral bushing, 27. Screw sleeve, 31. Split thread chuck, 32. Fastening bolt, 41. Rotary chuck, 42. Handle, 5. Hopper, 51. Hopper inner liner. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] The present invention will now be described in further detail with reference to the accompanying drawings:

[0024] like Figure 1 and Figure 2 As shown, a pneumatically assisted screw feeding device according to the present invention is used for auxiliary feeding of a silo, comprising: a screw cylinder 1, a screw body, a snap-fit ​​assembly, and a rotating assembly;

[0025] The spiral cylinder 1 is inclined relative to the discharge wall of the hopper 5, and the lower end of the spiral cylinder 1 is connected to the wall of the hopper 5.

[0026] The spiral body is rotatably mounted relative to the spiral cylinder 1 via a snap-fit ​​assembly. The spiral body includes a feed screw 21 and a spiral surface 22.

[0027] The spiral surface 22 is provided on the feed screw 21 and is located inside the spiral cylinder 1. A rotating component is provided at the end of the feed screw 21 that extends outside the spiral cylinder 1. The rotating component can drive the feed screw 21 to rotate relative to the snap-fit ​​component. The feed screw 21 can feed and move into the hopper 5 while rotating based on the thread.

[0028] The feed screw 21 has a spiral air hole 23 at its center and an air source interface 24 on the side of the feed screw 21 near the rotating component. The air source interface 24 can purge gas into one end of the hopper 5 when an air source is connected.

[0029] In this embodiment, the integrated structure of the spiral cylinder 1 and the hopper 5 optimizes the safety of material dredging operations and avoids material spillage. The coordinated feeding of the spiral body and the rhomboid cone ensures the efficiency of handling agglomerated materials, improving the efficiency and effectiveness of material dredging. The pneumatic auxiliary design enhances the material dredging and feeding and the material blowing and cleaning, improving the stability and convenience of the feeding operation.

[0030] Specifically, during implementation, the spiral cylinder 1 and the hopper 5 are welded into an integral structure. The spiral cylinder 1 is fitted with a spiral surface 22 that is integrally set with the feed screw 21. As the main component to assist the spiral feeding, the spiral feed disturbs and loosens the material and clears the hopper 5. Through repeated operation, it ensures that the clumps of material in the hopper 5 are loosened and fed normally.

[0031] In addition, the spiral air hole 23 is connected to the air source interface 24 and connected to the dry gas source. When the spiral feeding auxiliary operation is performed, the air source is turned on and the high-pressure gas can blow away the loose material to assist the spiral feeding and improve the operation efficiency. When the spiral body is withdrawn, it is used to blow away the material adhering inside the spiral cylinder 1 to ensure that the spiral cylinder 1 is clean.

[0032] The feed screw 21 is arranged along the central axis of the spiral cylinder 1 and reciprocates along the central axis of the spiral cylinder 1 during rotational feeding. The spiral surface 22 is preferably a right-handed spiral.

[0033] In the above embodiment, preferably, the snap-fit ​​assembly includes a split threaded chuck 31 and a fastening bolt 32. The feed screw 21 is fixed to the center of the split threaded chuck 31, the set screw of the split threaded chuck 31 is fixed to the inner wall of the port of the spiral cylinder 1, and the split threaded chuck 31 is fixed relative to the spiral cylinder 1 by the fastening bolt 32.

[0034] In this embodiment, the split threaded chuck 31 is tightly fixed to the spiral cylinder 1, providing positioning and support for the spiral body. It is threadedly engaged with the feed screw 21 to ensure that the feed screw 21 can feed or retract during rotation.

[0035] In the above embodiment, preferably, the spiral body also includes a rhomboid cone 25. The rhomboid cone 25 is disposed at one end of the feed screw 21 near the hopper 5. When the feed screw 21 feeds and moves into the hopper 5, the rhomboid cone 25 crushes and loosens the material. It is mainly used for severely agglomerated materials in the spiral feed path to crush and loosen them. The positive pressure opens up the travel path to ensure that there are no large agglomerates at the discharge port of the hopper 5.

[0036] In the above embodiment, preferably, the spiral cylinder 1 includes a spiral bushing 26, which is embedded in the spiral cylinder 1 and surrounds the spiral surface 22, providing guidance and support for the spiral surface 22 during the feeding process as the feed screw 21 rotates.

[0037] During implementation, the spiral bushing 26 is made of wear-resistant material to protect the spiral body and provide auxiliary support for the spiral surface 22 during spiral working and feeding, ensuring the spiral feed direction is limited and avoiding deformation.

[0038] In the above embodiment, preferably, the rotating assembly includes a rotating chuck 41 and a handle 42. The rotating chuck 41 is snapped and fixed to the end of the feed screw 21, and the handle 42 is mounted on the rotating chuck 41 by a positioning pin. When the handle 42 is driven to rotate, it can drive the feed screw 21 to rotate and feed through the rotating chuck 41.

[0039] During implementation, manually rotating the handle 42 causes the feed screw 21 to rotate via the rotating chuck 41, thus moving the feed screw and clearing the material from the discharge port of the hopper 5. After clearing, rotating the handle 42 in the opposite direction causes the feed screw 21 and its diamond-shaped cone 25 to rotate and retract.

[0040] In the above embodiment, preferably, the screw body further includes a screw sleeve 27, which is disposed between the split thread chuck 31 and the rotating assembly. The screw sleeve 27 surrounds the outer periphery of the feed screw 21 and is used to prevent dust from accumulating at the contact position between the feed screw 21 and the split thread chuck 31 and the rotating chuck 41, thus affecting the rotation process.

[0041] In the above embodiments, preferably, the pneumatically assisted screw feeding device further includes an inner guard plate 51, which is disposed on the inner side of the hopper 5 near the lower port of the screw cylinder 1. When the feed screw 21 moves into the hopper 5, the inner guard plate 51 can open inward.

[0042] During implementation, the inner protective plate 51 is made of rubber. Under normal conditions, it is used to protect the spiral cylinder 1 and the spiral body to prevent materials in the hopper 5 from entering the spiral cylinder 1. When the rhomboid cone 25 and the feed screw 21 feed the material into the hopper 5 to assist in feeding, the rubber protective plate can be lifted and the inner protective plate 51 will open automatically.

[0043] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pneumatically assisted screw feeder, characterized in that, Auxiliary feeding components used in silos include: auger cylinder, auger body, clamping assembly, and rotating assembly; The spiral cylinder is inclined relative to the lower wall of the hopper, and the lower end of the spiral cylinder is connected through the wall of the hopper. The spiral body is rotatably mounted relative to the spiral cylinder via the snap-fit ​​assembly, and the spiral body includes a feed screw and a spiral surface; The helical surface is provided on the portion of the feed screw located inside the helical cylinder. The rotating component is provided at one end of the feed screw extending outside the helical cylinder. The rotating component can drive the feed screw to rotate relative to the snap-fit ​​component. The feed screw can feed and move into the hopper while rotating based on the thread. The feed screw has a spiral air hole at its center, and an air source interface is provided on the side of the feed screw near the rotating assembly. The air source interface can introduce gas into one end of the hopper for purging when an air source is introduced.

2. The pneumatically assisted screw feeder according to claim 1, characterized in that, The snap-fit ​​assembly includes a split threaded chuck and a fastening bolt. The feed screw is fixed to the center of the split threaded chuck, and the set screw of the split threaded chuck is fixed to the inner wall of the port of the spiral cylinder. The split threaded chuck is fixed relative to the spiral cylinder by the fastening bolt.

3. The pneumatically assisted screw feeder according to claim 1, characterized in that, The spiral body also includes a rhomboid cone, which is disposed at one end of the feed screw near the hopper, and the material is crushed and loosened by the rhomboid cone when the feed screw moves into the hopper.

4. The pneumatically assisted screw feeder according to claim 1, characterized in that, The spiral cylinder includes a spiral bushing, which is fitted inside the spiral cylinder and surrounds the spiral surface, providing guidance and support for the spiral surface as it rotates and is fed by the feed screw.

5. The pneumatically assisted screw feeder according to claim 1, characterized in that, The rotating assembly includes a rotating chuck and a handle. The rotating chuck is snapped and fixed to the end of the feed screw. The handle is mounted on the rotating chuck via a positioning pin. When the handle is driven to rotate, it can drive the feed screw to rotate and feed through the rotating chuck.

6. The pneumatically assisted screw feeder according to claim 2, characterized in that, The spiral body also includes a screw sleeve, which is disposed between the split thread chuck and the rotating assembly, and surrounds the outer periphery of the feed screw.

7. The pneumatically assisted screw feeder according to claim 6, characterized in that, It also includes an inner guard plate, which is disposed on the inner side of the hopper near the lower port of the spiral cylinder. When the feed screw moves into the hopper, the inner guard plate can open inward.

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