A spiral conveying device for lithium iron phosphate processing

Abstract

The utility model provides a kind of spiral conveying device for lithium iron phosphate processing, including support frame, conveying cylinder and conveying motor, the upper surface of support frame is fixed with conveying cylinder, the upper surface right side of conveying cylinder is fixed with conveying motor, the top front end of support frame is fixed with fan, the top right side of support frame is fixed with adapter cylinder, adapter cylinder is embedded with connecting disc inside, the left side of connecting disc is fixed with screw rod transversely, the outer wall of screw rod is fixed with spiral blade, the inside of screw rod is fixed with baffle, the left side upper of conveying cylinder is fixed with feeding cylinder, the outer wall right side of feeding cylinder is fixed with servo motor, the inside upper of feeding cylinder is embedded with fixed ring, the inner wall of fixed ring is fixed with scraper.The utility model can scrape the accumulated lithium iron phosphate in feeding cylinder during feeding process, feeding is more smooth, and the running screw rod and spiral blade can be cooled at the same time, to avoid overheating after long-term use of screw rod and cause it unable to operate normally.

Description

Technical Field

[0001] This utility model relates to the field of conveying equipment technology, and in particular to a screw conveyor for lithium iron phosphate processing. Background Technology

[0002] Lithium iron phosphate (LFP) is a core cathode material for lithium-ion batteries in the current new energy field. Its processing demands extremely high stability, precision, and cleanliness in material transport. From the mixing and cooling of LFP raw materials after calcination to the grading and packaging of the finished powder, the material undergoes multiple transfer processes. Screw conveyors, due to their compact structure and small footprint, have become commonly used equipment in this field. However, existing screw conveyors suffer from several drawbacks during operation. LFP in the storage tank tends to clump together and adhere to the inner wall, causing blockages at the ports and affecting subsequent transport efficiency. Furthermore, the screw conveyor rod is prone to overheating during prolonged operation, severely impacting the normal operation of the device and potentially leading to equipment failure, shutdown, or safety risks, making its use inconvenient. Utility Model Content

[0003] The purpose of this invention is to solve the problems existing in the above-mentioned background technology by proposing a screw conveyor for lithium iron phosphate processing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A screw conveyor for lithium iron phosphate processing includes a support frame, a conveying cylinder, and a conveying motor. The conveying cylinder is fixed to the upper surface of the support frame, and the conveying motor is fixed to the right side of the upper surface of the conveying cylinder. A fan is fixed to the top front end of the support frame, and an adapter cylinder is fixed to the top right side of the support frame. A connecting plate is embedded inside the adapter cylinder, and a screw rod is horizontally fixed to the left side of the connecting plate. A screw blade is fixed to the outer wall of the screw rod, and a baffle is fixed inside the screw rod. A feed cylinder is fixed to the upper left side of the conveying cylinder, and a servo motor is fixed to the right side of the outer wall of the feed cylinder. A fixing ring is embedded in the upper inside of the feed cylinder, and a scraper is fixed to the inner wall of the fixing ring.

[0005] Preferably, the interior of the spiral rod is hollow, and the baffles are equidistantly arranged at the upper and lower ends of the spiral rod from left to right.

[0006] Preferably, the baffle is made of copper, with a semi-circular vertical section that matches the inner diameter of the spiral rod, and is equidistantly arranged from left to right to extend the residence time of the cooling airflow.

[0007] Preferably, the outer wall of the connecting plate is uniformly provided with air inlets that communicate with its interior, and the exhaust pipe of the fan is connected to the interior of the adapter cylinder.

[0008] Preferably, the power output end of the servo motor is rotatably connected to the fixed ring via a gear disk, and the outer wall of the scraper is in close contact with the inner wall of the feed cylinder.

[0009] Preferably, the scrapers are arranged in a circular pattern around the center of the fixing ring, and the height of the scrapers is the same as the height of the feed cylinder.

[0010] When lithium iron phosphate is poured into the feeding cylinder, the servo motor drives the fixed ring to rotate, causing the fixed ring to drive the scraper to scrape the inner wall of the feeding cylinder and the lithium iron phosphate, preventing the lithium iron phosphate from sticking and accumulating in the feeding cylinder for a long time, making the feeding smoother. During the process of conveying lithium iron phosphate, the fan generates airflow that enters the transfer cylinder through the pipe, then passes through the transfer plate and enters the screw, and is discharged from right to left, achieving rapid heat dissipation of the screw. The heat dissipation effect is good, which can prevent the screw from overheating after long-term use and causing it to fail to operate normally, further improving the working efficiency of the device. Attached Figure Description

[0011] Figure 1 This is a front view of the overall structure of this utility model; Figure 2 This is a front cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the screw rod and adapter cylinder structure in this utility model; Figure 4 This is a schematic cross-sectional view of the overall structure on the right side of this utility model.

[0012] Legend: Support frame 1, conveyor cylinder 2, conveyor motor 201, fan 202, adapter cylinder 3, connecting plate 4, screw rod 401, screw blade 402, baffle 403, feed cylinder 5, servo motor 501, fixing ring 502, scraper 503. Detailed Implementation

[0013] Example 1, referring to Figure 1-4 A screw conveyor for lithium iron phosphate processing includes a support frame 1, a conveying cylinder 2, and a conveying motor 201. The conveying cylinder 2 is fixed to the upper surface of the support frame 1, and the conveying motor 201 is fixed to the right side of the upper surface of the conveying cylinder 2. A fan 202 is fixed to the top front end of the support frame 1, and an adapter cylinder 3 is fixed to the top right side of the support frame 1. A connecting plate 4 is embedded inside the adapter cylinder 3. A screw rod 401 is horizontally fixed to the left side of the connecting plate 4. A screw blade 402 is fixed to the outer wall of the screw rod 401, and a baffle 403 is fixed inside the screw rod 401. A feed cylinder 5 is fixed to the upper left side of the conveying cylinder 2. A servo motor 501 is fixed to the right side of the outer wall of the feed cylinder 5. A fixing ring 502 is embedded in the upper inside of the feed cylinder 5, and a scraper 503 is fixed to the inner wall of the fixing ring 502.

[0014] The interior of the screw rod 401 is hollow, and the baffles 403 are equally spaced and intersected from left to right at the upper and lower ends of the interior of the screw rod 401. The baffle 403 is made of copper, and its vertical cross-section is semi-circular and matches the inner diameter of the spiral rod 401. It is equidistantly arranged from left to right to extend the residence time of the cooling airflow. When the spiral rod 401 and spiral blade 402 generate heat during rotation, they will simultaneously conduct heat to the baffle 403. The airflow moves from right to left inside the spiral rod 401. At this time, the airflow will successively hit the baffle 403, which is cross-shaped at the upper and lower ends inside the spiral rod 401. The baffle 403 changes the airflow movement state, prolongs the heat dissipation time and expands the heat exchange area. By dissipating heat from the baffle 403, the heat dissipation of the spiral rod 401 and spiral blade 402 is indirectly achieved at the same time, resulting in a good heat dissipation effect. The outer wall of the connecting plate 4 is evenly provided with air inlets that communicate with its interior, and the exhaust pipe of the fan 202 is connected to the interior of the adapter cylinder 3. The airflow generated by the fan 202 enters the adapter cylinder 3 through the pipe, and then passes through the air inlet of the adapter plate 4 into the screw rod 401. After that, the airflow is discharged from right to left, which realizes rapid heat dissipation of the screw rod 401. The heat dissipation effect is good, which can prevent the screw rod 401 from overheating after long-term use and causing it to fail to operate normally, thus further improving the working efficiency of the device. Example 2 differs from Example 1 in that, in this example, the power output end of the servo motor 501 is rotatably connected to the fixed ring 502 through a gear disk, and the outer wall of the scraper 503 is in close contact with the inner wall of the feed cylinder 5. The scraper 503 is arranged in a ring around the middle of the fixed ring 502, and the height of the scraper 503 is the same as the height of the feed cylinder 5. When lithium iron phosphate is poured into the feed cylinder 5, the servo motor 501 will drive the fixed ring 502 to rotate, so that the fixed ring 502 drives the scraper 503 to scrape the inner wall of the feed cylinder 5 and the lithium iron phosphate, so as to prevent the lithium iron phosphate from sticking and accumulating in the feed cylinder for a long time, and the subsequent feeding is smoother. The uniform scraper 503 can scrape the inner wall of the feed cylinder 5 in all directions, avoiding any dead angles in the scraping of lithium iron phosphate.

[0015] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A screw conveyor for processing lithium iron phosphate, comprising a support frame (1), a conveying cylinder (2), and a conveying motor (201), wherein the conveying cylinder (2) is fixed on the upper surface of the support frame (1), and the conveying motor (201) is fixed on the right side of the upper surface of the conveying cylinder (2), characterized in that, A fan (202) is fixed at the top front end of the support frame (1). An adapter cylinder (3) is fixed at the top right side of the support frame (1). A connecting plate (4) is embedded inside the adapter cylinder (3). A spiral rod (401) is fixed horizontally on the left side of the connecting plate (4). A spiral blade (402) is fixed on the outer wall of the spiral rod (401). A baffle (403) is fixed inside the spiral rod (401). A feed cylinder (5) is fixed on the upper left side of the conveying cylinder (2). A servo motor (501) is fixed on the right side of the outer wall of the feed cylinder (5). A fixing ring (502) is embedded on the upper inside of the feed cylinder (5). A scraper (503) is fixed on the inner wall of the fixing ring (502).

2. The screw conveyor for lithium iron phosphate processing according to claim 1, characterized in that, The interior of the spiral rod (401) is hollow, and the baffles (403) are equidistantly arranged at the upper and lower ends of the spiral rod (401) from left to right.

3. The screw conveyor for lithium iron phosphate processing according to claim 1, characterized in that, The baffle (403) is made of copper, and its vertical cross-section is semi-circular and adapted to the inner diameter of the spiral rod (401). It is equidistantly arranged from left to right to extend the residence time of the cooling airflow.

4. The screw conveyor for lithium iron phosphate processing according to claim 1, characterized in that, The outer wall of the connecting plate (4) is evenly provided with air inlets that communicate with its interior, and the exhaust pipe of the fan (202) is connected to the interior of the adapter cylinder (3).

5. The screw conveyor for lithium iron phosphate processing according to claim 1, characterized in that, The power output end of the servo motor (501) is rotatably connected to the fixed ring (502) through a gear disk, and the outer wall of the scraper (503) is in close contact with the inner wall of the feed cylinder (5).

6. The screw conveyor for lithium iron phosphate processing according to claim 1, characterized in that, The scraper (503) is arranged in a circular pattern around the middle of the fixing ring (502), and the height of the scraper (503) is the same as the height of the feed cylinder (5).

Images