Vibration ball mill for processing metal powder and additionally provided with nitrogen protection device

Abstract

The invention relates to the technical field of powder processing equipment, in particular to a vibration ball mill added with a nitrogen protection device for processing metal powder, which comprises a seat plate, a bearing seat is fixed on one side of the upper end face of the seat plate, a cylinder is rotatably mounted on the bearing seat, and an end cover is rotatably mounted at the open end of the cylinder through a sealing bearing. Two connecting bases are symmetrically fixed to the outer wall of the end cover, the bottom ends of the two connecting bases are connected to the base plate, a gas filling opening is formed in the top of the end cover, a first electromagnetic valve is installed on the gas filling opening, one end of the first electromagnetic valve is connected with a nitrogen pipe, and one end of the nitrogen pipe is externally connected to a nitrogen tank. And one end, opposite to the open end, of the barrel is rotationally connected with a feeding hopper through a rotary joint. According to the invention, by adding nitrogen into the barrel, an inert environment in the barrel can be maintained, combustion explosion of materials is effectively prevented, the production safety is improved, oxygen and moisture are isolated, oxidative deterioration of the materials is prevented, the product quality is ensured, and corrosion of dust and corrosive gas to equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of powder processing equipment, and in particular to a vibration ball mill for processing metal powder with a nitrogen protection device added thereto. Background Art

[0002] A vibration ball mill is a device that uses vibration energy to crush, mix, disperse, etc. materials. In the process of metal powder processing, a vibration ball mill is often used to grind metal powder. However, the traditional vibration ball mill has the following problems: Safety hazards: The high temperature and friction generated during the grinding process of the material are likely to cause combustion or explosion, posing safety hazards.

[0003] Material deterioration: When the material comes into contact with oxygen and moisture in the air, oxidation, deliquescence and other reactions are likely to occur, resulting in material deterioration and affecting product quality.

[0004] Equipment corrosion: The dust and corrosive gases generated during the grinding process are likely to corrode the equipment, shortening the service life of the equipment.

[0005] Therefore, a vibration ball mill for processing metal powder with a nitrogen protection device added thereto is provided now. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a vibration ball mill for processing metal powder with a nitrogen protection device added thereto. By adding nitrogen into the cylinder body, an inert environment inside the cylinder body can be maintained, effectively preventing the material from burning and exploding, improving production safety, isolating oxygen and moisture, preventing the material from oxidizing and deteriorating, ensuring product quality, reducing the corrosion of the equipment by dust and corrosive gases, and prolonging the service life of the equipment, thus overcoming the deficiencies of the prior art.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions: A vibration ball mill for processing metal powder with a nitrogen protection device added thereto includes a seat plate. One side of the upper end surface of the seat plate is fixedly provided with a bearing seat. A cylinder body is rotatably installed on the bearing seat. The open end of the cylinder body is rotatably installed with an end cover through a sealed bearing. Two connecting seats are symmetrically and fixedly provided on the outer wall of the end cover. The bottoms of the two connecting seats are connected to the seat plate. An air inlet is opened at the top of the end cover. A first electromagnetic valve is installed on the air inlet. One end of the first electromagnetic valve is connected with a nitrogen pipe, and one end of the nitrogen pipe is externally connected to a nitrogen tank.

[0008] As a further solution of the invention: The end of the cylinder body opposite to the open end is rotatably connected with a feeding hopper through a rotary joint. A fixing seat is fixedly provided on the outer wall of the feeding hopper. The lower end of the fixing seat is connected to the seat plate. The opening of the feeding hopper faces upward.

[0009] As a further solution of the invention: A U-shaped frame is fixed on the upper end surface of the seat plate. A first electric push rod is fixed on the lower end surface of the horizontal section of the U-shaped frame. The lower end of the first electric push rod is connected with a sealing plug which is in plug-in fit with the opening of the feeding hopper.

[0010] As a further solution of the invention: An oxygen concentration sensor is fixed on the top of one side of the feeding hopper. The probe of the oxygen concentration sensor extends into the interior of the feeding hopper. The oxygen concentration sensor is externally connected to a display device through a signal line. An air extraction component is installed on the top of the other side of the feeding hopper.

[0011] As a further solution of the invention: The air extraction component includes a second electromagnetic valve installed on the feeding hopper. One end of the second electromagnetic valve is connected with an air extraction pipe. One end of the air extraction pipe is externally connected to an air extraction pump.

[0012] As a further solution of the invention: A toothed ring is fixed on one end of the outer wall of the cylinder body. A speed reducer is fixed on the upper end surface of the seat plate. The input end of the speed reducer is connected with a servo motor. The output end of the speed reducer is connected with a gear. The gear meshes with the toothed ring.

[0013] As a further solution of the invention: A support ring is fixed on the other end of the outer wall of the cylinder body. Support wheels are fixed on the upper end surface of the seat plate and on both sides of the cylinder body. Both support wheels are in rolling and clamping connection with the support ring.

[0014] As a further solution of the invention: The cross section of the end cover is T-shaped. A chute is opened on the end cover. A discharge port is opened at the bottom of the chute on the end cover. A second electric push rod is fixed at the top of the chute. The lower end of the second electric push rod is connected with a sealing plate.

[0015] As a further solution of the invention: An L-shaped clamping plate is fixed at the bottom of the side of the sealing plate facing the interior of the cylinder body. One side of the vertical section of the L-shaped clamping plate is in sliding contact with the inner wall of the end cover.

[0016] As a further solution of the invention: Two U-shaped seats are fixed on both sides of the lower end surface of the seat plate. A support block is rotatably installed inside one U-shaped seat. The bottom end of the support block is fixed with a bottom plate. A support rod is fixed inside the other U-shaped seat. A hydraulic telescopic rod is rotatably installed between the middle of the support rod and the upper end surface of the bottom plate.

[0017] The beneficial effects of the present invention are: By adding nitrogen into the cylinder body, an inert environment inside the cylinder body can be maintained, effectively preventing the combustion and explosion of materials, improving production safety, isolating oxygen and moisture, preventing the oxidation and deterioration of materials, ensuring product quality, reducing the corrosion of dust and corrosive gases to the equipment, and prolonging the service life of the equipment. Description of the Drawings

[0018] Figure 1 The first - perspective three - dimensional structure schematic diagram of a nitrogen - protection device added to a vibrating ball mill for processing metal powder proposed by the present invention.

[0019] Figure 2 The second - perspective three - dimensional structure schematic diagram of a nitrogen - protection device added to a vibrating ball mill for processing metal powder proposed by the present invention.

[0020] Figure 3 The third - perspective three - dimensional structure schematic diagram of a nitrogen - protection device added to a vibrating ball mill for processing metal powder proposed by the present invention.

[0021] Figure 4 The structure schematic diagram of the end - cover of a nitrogen - protection device added to a vibrating ball mill for processing metal powder proposed by the present invention.

[0022] Figure 5 A nitrogen - protection device added to a vibrating ball mill for processing metal powder proposed by the present invention Figure 1 The enlarged structure schematic diagram at position A.

[0023] Figure 6 A nitrogen - protection device added to a vibrating ball mill for processing metal powder proposed by the present invention Figure 2 The enlarged structure schematic diagram at position B.

[0024] In the figure: 1, seat plate; 2, U - shaped frame; 3, first electric push rod; 4, sealing plug; 5, gear ring; 6, cylinder body; 7, end - cover; 8, connecting seat; 9, bottom plate; 10, support wheel; 11, bearing seat; 12, rotary joint; 13, feeding hopper; 14, support ring; 15, first solenoid valve; 16, nitrogen pipe; 17, chute; 18, second electric push rod; 19, sealing plate; 20, U - shaped seat; 21, support block; 22, support rod; 23, hydraulic telescopic rod; 24, L - shaped clamping plate; 25, gas - filling port; 26, gear; 27, speed reducer; 28, oxygen concentration sensor; 29, second solenoid valve; 30, exhaust pipe; 31, fixed seat; 32, discharge port. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1, referring to Figures 1-6, A nitrogen protection device is added to a vibration ball mill for processing metal powder, including a seat plate 1. One side of the upper end surface of the seat plate 1 is fixedly provided with a bearing seat 11. A cylinder body 6 is rotatably installed on the bearing seat 11. The open end of the cylinder body 6 is rotatably installed with an end cover 7 through a sealed bearing. Two connecting seats 8 are symmetrically fixed on the outer wall of the end cover 7. The bottoms of the two connecting seats 8 are connected to the seat plate 1. An air inlet 25 is opened at the top of the end cover 7. A first electromagnetic valve 15 is installed on the air inlet 25. One end of the first electromagnetic valve 15 is connected to a nitrogen pipe 16, and one end of the nitrogen pipe 16 is externally connected to a nitrogen tank.

[0027] One end of the cylinder body 6 opposite to the open end is rotatably connected with a feeding hopper 13 through a rotary joint 12. A fixed seat 31 is fixed on the outer wall of the feeding hopper 13. The lower end of the fixed seat 31 is connected to the seat plate 1. The opening of the feeding hopper 13 faces upward.

[0028] The upper end surface of the seat plate 1 is fixedly provided with a U-shaped frame 2. The lower end surface of the horizontal section of the U-shaped frame 2 is fixedly provided with a first electric push rod 3. The lower end of the first electric push rod 3 is connected with a sealing plug 4 that forms an insertion fit with the opening of the feeding hopper 13.

[0029] One side of the top of the feeding hopper 13 is fixedly provided with an oxygen concentration sensor 28. The probe of the oxygen concentration sensor 28 extends into the interior of the feeding hopper 13. The oxygen concentration sensor 28 is externally connected to a display device through a signal line. An air extraction component is installed on the other side of the top of the feeding hopper 13. The oxygen concentration sensor 28 can be used to detect the oxygen concentration in the cylinder body 6 and transmit the information to the display device.

[0030] The air extraction component includes a second electromagnetic valve 29 installed on the feeding hopper 13. One end of the second electromagnetic valve 29 is connected to an air extraction pipe 30, and one end of the air extraction pipe 30 is externally connected to an air extraction pump.

[0031] One end of the outer wall of the cylinder body 6 is fixedly provided with a toothed ring 5. The upper end surface of the seat plate 1 is fixedly provided with a speed reducer 27. The input end of the speed reducer 27 is connected with a servo motor. The output end of the speed reducer 27 is connected with a gear 26. The gear 26 meshes with the toothed ring 5. The other end of the outer wall of the cylinder body 6 is fixedly provided with a support ring 14. Support wheels 10 are fixedly provided on the upper end surface of the seat plate 1 and on both sides of the cylinder body 6. Both of the two support wheels 10 are in rolling engagement with the support ring 14; The servo motor is driven to drive the speed reducer 27 and the gear 26 to rotate, and then drive the cylinder body 6 to rotate, and then the grinding balls grind the materials in the cylinder body 6.

[0032] The cross-section of the end cover 7 is T-shaped. A chute 17 is opened on the end cover 7. A discharge port 32 is opened at the bottom of the end cover 7 and located in the chute 17. A second electric push rod 18 is fixed at the top of the chute 17. The lower end of the second electric push rod 18 is connected with a sealing plate 19. By contracting the second electric push rod 18 to pull the sealing plate 19 upward, the discharge port 32 can be exposed to facilitate the discharge of the materials.

[0033] On the bottom of one side of the closing plate 19 facing the inside of the cylinder body 6, an L-shaped clamping plate 24 is fixedly installed at the bottom. One side of the vertical section of the L-shaped clamping plate 24 is in sliding contact with the inner wall of the end cover 7 to ensure the stability of the closing plate 19 and prevent the closing plate 19 from shaking.

[0034] After the feeding into the cylinder body 6 from the feeding hopper 13 is completed, the first electric push rod 3 is controlled to push the sealing plug 4 downward to seal the opening of the feeding hopper 13. By turning on the air extraction pump and the second solenoid valve 29, the air inside the cylinder body 6 is extracted, and then the first solenoid valve 15 is opened to allow nitrogen to enter the cylinder body 6. When the oxygen concentration detected by the oxygen concentration sensor 28 is 0, the air extraction pump, the first solenoid valve 15 and the second solenoid valve 29 are closed. The nitrogen in the cylinder body 6 can maintain an inert environment inside the cylinder body 6, effectively preventing the material from burning and exploding and improving the production safety. When it is necessary to recover nitrogen after the material grinding is completed, the air outlet end of the air extraction pump is connected to the recovery device, and the air extraction pump and the second solenoid valve 29 are turned on to extract the nitrogen in the cylinder body 6 for recovery.

[0035] Embodiment 2 is an optimization based on Embodiment 1. Specifically: on both sides of the lower end surface of the seat plate 1, two U-shaped seats 20 are fixedly installed. A support block 21 is rotatably installed inside one of the U-shaped seats 20, and a bottom plate 9 is fixedly installed at the bottom end of the support block 21. A support rod 22 is fixedly installed inside the other U-shaped seat 20, and a hydraulic expansion and contraction rod 23 is rotatably installed between the middle of the support rod 22 and the upper end surface of the bottom plate 9.

[0036] By controlling the expansion and contraction of the hydraulic expansion and contraction rod 23, the inclination degree of the cylinder body 6 can be adjusted to discharge the material.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A nitrogen protection device is added to a vibrating ball mill for processing metal powder, including a seat plate (1), characterized in that, One side of the upper end surface of the seat plate (1) is fixedly provided with a bearing seat (11). A cylinder body (6) is rotatably installed on the bearing seat (11). The open end of the cylinder body (6) is rotatably installed with an end cover (7) through a sealed bearing. Two connecting seats (8) are symmetrically fixed on the outer wall of the end cover (7). The bottoms of the two connecting seats (8) are connected to the seat plate (1). An air filling port (25) is formed at the top of the end cover (7). A first electromagnetic valve (15) is installed on the air filling port (25). One end of the first electromagnetic valve (15) is connected with a nitrogen gas pipe (16). One end of the nitrogen gas pipe (16) is externally connected to a nitrogen gas tank.

2. The nitrogen protection device added to the vibration ball mill for processing metal powder according to claim 1 is characterized in that, One end of the cylinder body (6) opposite to the open end is rotatably connected with a feeding hopper (13) through a rotary joint (12). A fixed seat (31) is fixed on the outer wall of the feeding hopper (13). The lower end of the fixed seat (31) is connected to the seat plate (1). The opening of the feeding hopper (13) faces upward.

3. The nitrogen protection device added to the vibrating ball mill for processing metal powder according to claim 2, wherein, A U-shaped frame (2) is fixed on the upper end surface of the seat plate (1). A first electric push rod (3) is fixed on the lower end surface of the horizontal section of the U-shaped frame (2). The lower end of the first electric push rod (3) is connected with a sealing plug (4) which is in plug-in fit with the opening of the feeding hopper (13).

4. A nitrogen protection device is added to the vibrating ball mill for processing metal powder according to claim 3, characterized in that, An oxygen concentration sensor (28) is fixed at the top of one side of the feeding hopper (13). The probe of the oxygen concentration sensor (28) extends into the interior of the feeding hopper (13). The oxygen concentration sensor (28) is externally connected to a display device through a signal line. An air extraction assembly is installed at the top of the other side of the feeding hopper (13).

5. A vibration ball mill for processing metal powder according to claim 4, further comprising a nitrogen protection device, wherein, The air extraction assembly includes a second electromagnetic valve (29) installed on the feeding hopper (13). One end of the second electromagnetic valve (29) is connected with an air extraction pipe (30). One end of the air extraction pipe (30) is externally connected to an air extraction pump.

6. The nitrogen protection device added to the vibration ball mill for processing metal powder according to claim 1 is characterized in that, A toothed ring (5) is fixed at one end of the outer wall of the cylinder body (6). A speed reducer (27) is fixed on the upper end surface of the seat plate (1). The input end of the speed reducer (27) is connected with a servo motor. The output end of the speed reducer (27) is connected with a gear (26). The gear (26) meshes with the toothed ring (5).

7. A vibration ball mill for processing metal powder, which is added with a nitrogen protection device according to claim 6, characterized in that, A support ring (14) is fixed at the other end of the outer wall of the cylinder body (6). Support wheels (10) are fixed on the upper end surface of the seat plate (1) and on both sides of the cylinder body (6). Both of the two support wheels (10) are in rolling engagement with the support ring (14).

8. The nitrogen protection device added to the vibrating ball mill for processing metal powder according to claim 1 is characterized in that, The cross section of the end cover (7) is in a T shape. A chute (17) is formed on the end cover (7). A discharge port (32) is formed at the bottom of the end cover (7) and located at the bottom of the chute (17). A second electric push rod (18) is fixed at the top of the chute (17). The lower end of the second electric push rod (18) is connected with a sealing plate (19).

9. A nitrogen protection device added to a vibrating ball mill for processing metal powder according to claim 8, characterized in that, An L-shaped clamping plate (24) is fixed at the bottom of the side of the sealing plate (19) facing the interior of the cylinder body (6). One side of the vertical section of the L-shaped clamping plate (24) is in sliding contact with the inner wall of the end cover (7).

10. A vibration ball mill for processing metal powder as claimed in claim 1, further comprising a nitrogen protection device, wherein, On both sides of the lower end face of the seat plate (1), two U-shaped seats (20) are fixedly installed. A support block (21) is rotatably installed inside one of the U-shaped seats (20), and a bottom plate (9) is fixedly installed at the bottom end of the support block (21). A support rod (22) is fixedly installed inside the other U-shaped seat (20), and a hydraulic telescopic rod (23) is rotatably installed between the middle of the support rod (22) and the upper end face of the bottom plate (9).

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