Built-in oil injection channel high temperature feeder

Abstract

The utility model provides a high temperature feeder with built-in oil injection channel, the lower part of the front end of the shell is equipped with a discharge port, an end plate above the discharge port is equipped with a bearing support, a high temperature bearing is installed in the bearing support, the front end of the main rod body of screw push rod is sleeved in the bearing, the outer end of bearing support is equipped with a circular port, a circular end cover is installed at the circular port through bolts, a circular cavity is formed among circular end cover, bearing and bearing support; the main rod body is a hollow rod, a metal pipe is installed in the hollow rod, the front end of the metal pipe is communicated with the circular cavity, and a sealing plug is connected to the rear end port; the utility model sets the circular cavity at the metal pipe and bearing in the screw push rod; the metal pipe can conveniently inject lubricating oil into the high temperature bearing, avoids the phenomenon that high temperature leads to lubricating oil to dry and volatilize rapidly and causes the phenomenon that the auger rotation feeding is blocked, the operation process of this oil injection mode without disassembly is convenient and fast, and the utility model can guarantee the continuous high efficiency feeding of the feeder.

Description

Technical Field

[0001] This utility model relates to the field of feeding devices for dryers, and in particular to a high-temperature feeder with a built-in oil injection channel. Background Technology

[0002] A rotary drum dryer is a large-scale continuous processing equipment. Wet materials enter from the top and are directly or indirectly heated by hot air (or hot flue gas) inside the drum, tumbling forward with the drum. Moisture evaporates rapidly, and the finally dried material is discharged from the bottom. It features large processing capacity, stable operation, and strong adaptability (it can handle various materials such as granules, lumps, and pastes), and is widely used in mining, chemical, building materials, and metallurgical industries.

[0003] These types of equipment typically use a screw conveyor to transport materials. The discharge section needs to be embedded in the end of the drum to ensure that the material can smoothly enter the drum. For related structures, please refer to the publication number [number missing].

[0004] The utility model patent is CN204830742U. However, the auger feeder has obvious drawbacks in actual use: due to the high temperature inside the drum, the lubricating oil between the auger shaft and the bearing inside the feeder will quickly dry and evaporate, thus obstructing the auger's rotation and feeding. This requires frequent removal of the auger feeder from the dryer to add lubricating oil, which is not only cumbersome but also interferes with the efficient and continuous operation of the dryer. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a high-temperature feeder with a built-in oil injection channel.

[0006] The technical solution of this utility model is as follows: a high-temperature feeder with a built-in oil injection channel, including a spiral pusher installed in a housing and a driver connected to one end of the spiral pusher. A discharge port is provided at the lower part of the front end of the housing. The spiral blades of the auger extend to the discharge port. A bearing bracket is provided on the end plate above the discharge port. A high-temperature bearing is installed in the bearing bracket. An annular connecting plate is provided on the edge of the bearing bracket. The annular connecting plate and the end plate of the housing are fixed together by bolts. The front end of the main rod of the spiral pusher is fitted into the bearing. A circular opening is provided at the outer end of the bearing bracket. A circular end cap is installed at the circular opening by bolts. An annular step is provided on the inner side of the circular end cap. The annular step fits into the circular opening. A circular cavity is formed between the circular end cap, the bearing, and the bearing bracket. The interior of the circular cavity contains lubricating oil. The main rod is a hollow rod. A metal tube is installed in the hollow rod. The front end of the metal tube communicates with the circular cavity. A sealing plug is connected to the rear end. A holding ball head is provided at the end of the sealing plug.

[0007] Preferably, a square opening is provided on the side plate in the middle of the outer shell, a square tube is connected to the square opening, and a door is hinged to the end of the square tube, the door also being square.

[0008] Preferably, the lower end of the compartment door is hinged to the lower part of the square tube via a hinge, allowing the compartment door to be flipped downwards and opened. The upper end face of the square tube is provided with an L-shaped bracket, and a right-angle rocker arm is rotatably connected inside the L-shaped bracket. The handle of the right-angle rocker arm is provided with a bent section, so that a gap is formed between the right-angle rocker arm and the side plate of the outer shell. The upper end of the compartment door is provided with a notch, and the right-angle rocker arm is matched and inserted into the notch.

[0009] Preferably, the upper part of the outer shell is provided with a cover plate, the area of ​​the outer shell covered by the cover plate is inserted into the drying drum, and the cover plate is fixedly connected to the outer shell by evenly arranged screws.

[0010] Preferably, the main rod body is mainly composed of a stainless steel tube, a first shaft and a second shaft. Both the first shaft and the second shaft are stepped shafts, and the first shaft and the second shaft are respectively fixedly mounted on both ends of the stainless steel tube.

[0011] Preferably, the outer end of the main rod is connected to the driver, which is a geared motor, and extends from the outside of the driver, with a sealing sleeve fitted into the metal tube port of the protruding part of the main rod.

[0012] Preferably, the upper part of the rear end of the outer shell is provided with a feeding hopper, the height of one side plate of the feeding hopper is higher than the height of the other side plate, the feeding hopper is provided with a certain taper, and the upper cross-sectional dimension is larger than the lower cross-sectional dimension.

[0013] The beneficial technical effects of this utility model are:

[0014] This invention features a circular cavity inside the helical push rod where the metal tube meets the bearing.

[0015] With the chamber connected, during the process of the feeder conveying raw materials, lubricating oil can be easily injected into the high-temperature bearing through the metal pipe, avoiding the phenomenon that the lubricating oil will dry and evaporate quickly due to high temperature, thus preventing the auger from rotating and the feeding from being obstructed. This method of oiling at any time without disassembly is convenient and quick to operate, and can ensure that the feeder feeds continuously and efficiently.

[0016] This invention employs a method of conveying materials to the bearing through a metal tube from inside the helical push rod.

[0017] Injecting oil can prevent the metal pipe from being damaged by impact, and it also prevents it from directly contacting the high-temperature airflow, which helps reduce the evaporation of the lubricating oil and delays its drying speed. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 yes Figure 1 A top-view structural diagram;

[0020] Figure 3 yes Figure 2 A schematic diagram of the AA-direction cross-section structure;

[0021] Figure 4 yes Figure 3 A magnified view of a portion of the image;

[0022] Figure 5 yes Figure 2 Schematic diagram of the BB-direction cross-section structure;

[0023] Figure 6 This is a schematic diagram of the body structure of a partial component of this utility model.

[0024] In the diagram, 1. Outer shell, 11. Discharge port, 12. Square tube, 13. Bin door, 14. Right-angle rocker arm, 15. L-shaped bracket, 16. Notch, 17. Cover plate, 18. Feed hopper, 2. Spiral push rod, 21. Main rod, 211. Stainless steel tube, 212. First shaft, 213. Second shaft, 22. Metal tube, 23. Sealing plug, 3. Driver, 41. Bearing bracket, 42. High-temperature bearing, 43. Circular end cap, 44. Circular cavity, 51. Bolt, 61. Sealing ring, 62. Annular pressure plate. Detailed Implementation

[0025] Example 1, see appendix Figure 1-6 A high-temperature feeder with a built-in oil injection channel includes a spiral pusher 2 installed inside a housing 1 and a driver 3 connected to one end of the spiral pusher 2. The driver drives the spiral pusher to rotate. A discharge port 11 is provided at the lower part of the front end of the housing. The spiral pusher 2 pushes the raw material out of the discharge port 11. A bearing bracket 41 is provided on the end plate above the discharge port. A high-temperature bearing 42 is installed in the bearing bracket 41. The front end of the main rod 21 of the spiral pusher 2 is fitted into the bearing. The high-temperature bearing provides rotational support for the spiral pusher. A circular opening is provided at the outer end of the bearing bracket 41. A circular end cap 43 is installed at the circular opening by bolts. A high-temperature gasket is provided between the circular end cap 43 and the bearing bracket. A circular cavity is formed between the circular end cap 43, the bearing and the bearing bracket 41. The circular cavity is filled with lubricating oil to lubricate the bearing. The main rod 21 is a hollow rod. A metal tube 22 is installed in the hollow rod. The front end of the metal tube 22 communicates with the circular cavity, and the rear end is connected to a sealing plug 23.

[0026] The method of conveying oil to the bearing through the metal tube 22 from inside the spiral push rod 2 can avoid damage to the metal tube 22 caused by bumping, and also avoid direct contact with the high-temperature airflow, which helps to reduce the evaporation of lubricating oil and delay its drying speed.

[0027] The outer end of the main rod 21 is connected to the inside of the driver 3 and extends out from the outside of the driver 3. The sealing sleeve is fitted into the port of the metal tube 22 at the protrusion of the main rod 21. This design keeps the oil filling port of the metal tube 22 away from the high temperature area, enabling the operator to perform oil filling operations safely and efficiently.

[0028] A feed hopper 18 is provided at the upper part of the rear end of the outer casing 1. The height of one side plate of the feed hopper 18 is higher than the height of the other side plate. The raw material is fed into the outer casing 1 of the feeder from the feed hopper.

[0029] In the high-temperature feeder with built-in oil injection channel of this embodiment, a metal tube 22 is provided inside the spiral pusher 2, which is connected to the circular cavity at the bearing. This allows the operator to easily add lubricating oil to the high-temperature bearing 42 through the metal tube 22 when the feeder is conveying raw materials, effectively preventing the lubricating oil from drying and evaporating rapidly due to high temperature, thus avoiding obstruction of the auger's rotation and feeding. This method of adding oil at any time without disassembly is not only simple and quick to operate, but also ensures that the feeder always maintains a continuous and efficient feeding state.

[0030] Example 2, see appendix Figure 1 , 5 This embodiment is basically the same as embodiment two, and the similarities will not be repeated. The difference is that: a square opening is provided on the side plate in the middle of the outer shell 1, and a square tube 12 is connected to the square opening. A door 13 is hinged to the port of the square tube 12. The square tube extends out from the outer shell. By opening the door 13, the internal components of the outer shell 1 can be observed and repaired through the square opening, and the blockage of materials can be cleared.

[0031] The lower end of the storage door 13 is hinged to the lower part of the square tube 12 via a hinge. The upper end face of the square tube 12 is provided with an L-shaped bracket 15. A right-angle rocker arm 14 is rotatably connected inside the L-shaped bracket. The upper end of the storage door 13 is provided with a notch 16. The right-angle rocker arm 14 is matched and inserted into the notch 16. The right-angle rocker arm can rotate freely in the L-shaped bracket. When the right-angle rocker arm rotates to the lower position in the notch, it achieves the limit lock of the storage door 13. When the right-angle rocker arm 14 is rotated upward to move away from the storage door 13, it unlocks the storage door, and the storage door can be opened at this time.

[0032] The upper part of the outer shell 1 is provided with a cover plate 17. The area of ​​the outer shell 1 covered by the cover plate is inserted into the drying drum. The part of the outer shell inserted into the high temperature area is sealed by the cover plate 17, so as to realize the closed conveying of raw materials.

[0033] Example 3, see appendix Figure 3This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that the main rod 21 is mainly composed of a stainless steel tube 211, a first shaft 212, and a second shaft 213. Both the first and second shafts are solid optical shafts. The first and second shafts are respectively fixedly mounted on both ends of the stainless steel tube 211. The first shaft 212 is connected to the output shaft of the driver 3, and the second shaft 213 is connected to the bearing. The two ends of the spiral push rod 2 are its rotation support points and bear the power input. Therefore, its two ends are designed as solid first shaft 212 and second shaft 213 with high strength and rigidity, and the middle part is designed as a stainless steel tube 211, which meets the requirements of spiral conveying of raw materials while achieving the design requirement of lightweight.

Claims

1. A high-temperature feeder with a built-in oil injection channel, comprising a screw pusher installed inside a housing and a driver connected to one end of the screw pusher, characterized in that: The lower part of the front end of the outer shell is provided with a discharge port. A bearing bracket is provided on the end plate above the discharge port. A high-temperature bearing is installed in the bearing bracket. The front end of the main rod of the spiral push rod is fitted into the bearing. The outer end of the bearing bracket is provided with a circular opening. A circular end cap is installed at the circular opening by bolts. A circular cavity is formed between the circular end cap, the bearing and the bearing bracket. The main rod is a hollow rod. A metal tube is installed in the hollow rod. The front end of the metal tube is connected to the circular cavity, and the rear end is connected to a sealing plug.

2. The high-temperature feeder with built-in oil injection channel according to claim 1, characterized in that: A square opening is provided on the side plate in the middle of the outer shell, and a square tube is connected to the square opening. A door is hinged to the end of the square tube.

3. A high-temperature feeder with a built-in oil injection channel according to claim 2, characterized in that: The lower end of the compartment door is hinged to the lower part of the square tube via a hinge. The upper end of the square tube is provided with an L-shaped bracket, and a right-angle rocker arm is rotatably connected inside the L-shaped bracket. The upper end of the compartment door is provided with a notch, and the right-angle rocker arm is matched and inserted into the notch.

4. A high-temperature feeder with a built-in oil injection channel according to claim 1, characterized in that: The upper part of the outer shell is provided with a cover plate, and the area of ​​the outer shell covered by the cover plate is inserted into the drying drum.

5. A high-temperature feeder with a built-in oil injection channel according to claim 1, characterized in that: The main body is mainly composed of a stainless steel tube, a first shaft, and a second shaft, which are respectively fixedly mounted on both ends of the stainless steel tube.

6. A high-temperature feeder with a built-in oil injection channel according to claim 1, characterized in that: The outer end of the main rod is connected to the driver and extends out from the outside of the driver, with a sealing sleeve fitted into the metal tube port of the extended part of the main rod.

7. A high-temperature feeder with a built-in oil injection channel according to claim 1, characterized in that: The upper part of the rear end of the outer shell is provided with a feeding hopper, and the height of one side plate of the feeding hopper is higher than the height of the other side plate.

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