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CN-121988525-A - Automatic nano zinc powder screening device and method

CN121988525ACN 121988525 ACN121988525 ACN 121988525ACN-121988525-A

Abstract

The invention discloses an automatic nano zinc powder screening device and method, and relates to the field of nano zinc powder screening, comprising a machine body and a cage frame arranged in the machine body, wherein a screen is arranged on the cage frame, a feed inlet is arranged at the top of the machine body, a feed shaft is arranged in the machine body, a spiral blade positioned in the feed inlet and a plurality of groups of wind blades positioned in the cage frame are arranged on the feed shaft, and a plurality of groups of auxiliary mechanisms are arranged outside the feed shaft at intervals; the auxiliary mechanism comprises a sealing cylinder, and the inner side surface of the sealing cylinder is connected with a sealing piston in a sliding manner. According to the nanometer zinc powder automatic screening device and method, through the mutual coordination among the sealing cylinder, the sealing piston, the striking rod, the striking ring, the vibrating spring and the power mechanism, the zinc powder can be synchronously subjected to vibration treatment in the zinc powder screening process, so that agglomerated zinc powder can be crushed, and meanwhile, the speed of the zinc powder passing through the surface of the screen can be accelerated, so that the zinc powder screening efficiency can be effectively improved.

Inventors

  • GENG JIAWEI

Assignees

  • 江苏天诚锌业科技有限公司

Dates

Publication Date
20260508
Application Date
20260120

Claims (8)

  1. 1. The utility model provides a nanometer zinc powder automatic screening plant, includes organism (1) and sets up cage (101) in organism (1), is provided with screen cloth (102) on cage (101), and the top of organism (1) is provided with feed inlet (103), and organism (1) inside is provided with feeding axle (104), is provided with spiral leaf (105) and multiunit wind vane (106) that are located inside feed inlet (103) on feeding axle (104) and are located inside cage (101), its characterized in that, the outside interval of feeding axle (104) is provided with multiunit complementary mechanism; The auxiliary mechanism comprises a sealing cylinder (2), the inner side surface of the sealing cylinder (2) is connected with a sealing piston (21) in a sliding manner, the end part of the sealing piston (21) is fixedly connected with a striking rod (22), a through groove corresponding to the striking rod (22) is formed in the end part of the sealing cylinder (2), a striking ring (23) corresponding to the striking rod (22) is mounted on the cage (101), the end part of the striking rod (22) passes through the through groove and is abutted to the striking ring (23), a vibrating spring (24) is fixedly connected between the inner wall of the sealing cylinder (2) and the sealing piston (21), and a power mechanism is arranged in the machine body (1) and is used for driving the striking rod (22) to strike the striking ring (23); A plurality of groups of ring frames (3) are arranged on the feeding shaft (104) at intervals, and a plurality of broken wires (31) are arranged on the ring frames (3) at equal intervals.
  2. 2. The automatic nano zinc powder screening device according to claim 1, wherein the power mechanism comprises a driving cylinder (4) fixedly installed inside a machine body (1), a driving piston (41) is slidably connected to the inner side surface of the driving cylinder (4), an inner air ring (42) is fixedly connected to the outer portion of a feeding shaft (104), an outer air ring (43) is rotatably connected to the outer surface of the inner air ring (42), the inner air ring (42) and the inner portion of the outer air ring (43) are both arranged in a hollow mode, a long air groove (44) is formed in the feeding shaft (104), a plurality of groups of first through grooves (45) communicated with the long air groove (44) are formed in the inner portion of the inner air ring (42), a plurality of second through grooves (46) are formed in one side, close to the outer air ring (43), and a third through groove (47) corresponding to the second through grooves (46) is formed in the inner portion of the outer air ring (43).
  3. 3. The automatic nano zinc powder screening device according to claim 2, wherein a connecting frame (48) is fixedly connected to the outer part of the outer air ring (43), the connecting frame (48) is fixedly connected with the inner wall of the machine body (1), an air pipe (49) is fixedly communicated between the driving cylinder (4) and the outer air ring (43), a plurality of groups of air leakage grooves (410) are formed in the outer end, close to the inner wall, of the driving cylinder (4) at equal intervals in a circular ring shape, of the surface of the outer air ring (43) is provided with a plurality of groups of one-way valves (411).
  4. 4. An automatic nano zinc powder screening device according to claim 3, wherein the air flow direction inside the check valve (411) is from the inside of the outer air ring (43) to the outside of the outer air ring (43).
  5. 5. The automatic nano zinc powder screening device is characterized in that a reciprocating screw rod (412) is rotatably connected to the inside of the machine body (1), a guide frame (413) is mounted in the machine body (1), a driving block (414) is connected to the outside of the reciprocating screw rod (412) in a transmission mode, a guide block (415) is fixedly connected to the bottom of the driving block (414), and the guide block (415) is slidably connected with the inner side face of the guide frame (413).
  6. 6. The automatic nano zinc powder screening device is characterized in that a synchronizing rod (416) is fixedly connected between the driving block (414) and the driving piston (41), belt wheels (417) are fixedly installed outside the feeding shaft (104) and the reciprocating screw rod (412), and a transmission belt (418) is in transmission connection between the two belt wheels (417).
  7. 7. The automatic nano zinc powder screening device is characterized in that a conducting groove (419) communicated with the long air groove (44) is formed in the inner wall of the sealing cylinder (2).
  8. 8. An automatic nano zinc powder screening method, which adopts the automatic nano zinc powder screening device as defined in any one of claims 1 to 7, and is characterized by comprising the following steps: S1, putting nano zinc powder into the material inlet (103); S2, a feeding shaft (104) rotates to enable a spiral blade (105) to convey nano zinc powder into the cage (101) for screening; S3, in the screening process, the feeding shaft (104) and the power mechanism are matched to drive the striking rod (22) to perform intermittent retraction, and during the intermittent period, the striking rod (22) is driven by the vibration spring (24) to strike against the striking ring (23), so that the striking ring (23) and the screen (102) vibrate; S4, in the screening process, when the nano zinc powder moves forwards in the cage (101), the nano zinc powder passes through the broken wire (31), and the larger nano zinc powder is broken; s5, in the process of moving the nano zinc powder forwards, the nano zinc powder meeting the specification can pass through the screen (102) to be discharged from the end, and the nano zinc powder not meeting the specification can be separated from the end of the screen (102) and discharged from the end.

Description

Automatic nano zinc powder screening device and method Technical Field The invention relates to a nano zinc powder screening technology, in particular to an automatic nano zinc powder screening device and method. Background The nano zinc powder as an important functional material has the advantages of large specific surface area, high reactivity, good conductivity and the like, and is widely applied to the fields of electronic slurry, catalysts, anti-corrosion coatings, biological medicines and the like. The particle size distribution of the nano zinc powder directly influences the application performance of the nano zinc powder, so that the nano zinc powder needs to be precisely screened and graded, the purity of the zinc powder in different particle size ranges after screening is generally required to be more than or equal to 97%, and the particle size error is less than or equal to 5%. The air flow sieve is a common device for sieving nano zinc powder, the working principle is that the air flow is utilized to drive the powder to pass through the sieve to realize classification, and the air flow sieve has the advantages of high sieving efficiency, high yield, accurate fineness, no super-diameter mixing stage phenomenon, no load on the upright screen, long service life, wide application fineness range, full-closed structure, no dust dissipation, low noise and energy consumption, continuous operation, convenient maintenance and the like, and is widely applied to various fields, and powdery materials with fineness range of 80-500 meshes can be continuously sieved well. When the existing airflow sieve is used for sieving nano zinc powder, the nano zinc powder has smaller particle size and larger specific area, so that the nano zinc powder is easy to agglomerate, form larger particles and easily block in the movement process, and the normal sieving of the nano zinc powder is interfered, so that the sieving efficiency of the nano zinc powder is greatly reduced. Disclosure of Invention The invention aims to provide an automatic nano zinc powder screening device and method for solving the defects in the prior art. In order to achieve the aim, the invention provides the technical scheme that the nano zinc powder automatic screening device comprises a machine body and a cage frame arranged in the machine body, wherein a screen is arranged on the cage frame, a feeding hole is arranged at the top of the machine body, a feeding shaft is arranged in the machine body, a spiral blade positioned in the feeding hole and a plurality of groups of wind blades positioned in the cage frame are arranged on the feeding shaft, and a plurality of groups of auxiliary mechanisms are arranged outside the feeding shaft at intervals; The auxiliary mechanism comprises a sealing cylinder, the inner side surface of the sealing cylinder is connected with a sealing piston in a sliding manner, the end part of the sealing piston is fixedly connected with a striking rod, the end part of the sealing cylinder is provided with a through groove corresponding to the striking rod, the cage is provided with a striking ring corresponding to the striking rod, the end part of the striking rod passes through the through groove and is abutted against the striking ring, a vibrating spring is fixedly connected between the inner wall of the sealing cylinder and the sealing piston, and a power mechanism is arranged in the machine body and is used for driving the striking rod to strike the striking ring; a plurality of groups of ring frames are arranged on the feeding shaft at intervals, and a plurality of broken wires are equidistantly arranged on the ring frames. Further, the power unit includes the drive cylinder of fixed mounting in the inside of organism, the medial surface sliding connection of drive cylinder has the drive piston, the outside fixedly connected with inner gas ring of pay-off axle, the surface of inner gas ring rotates and is connected with the outer gas ring, the inside of inner gas ring and outer gas ring is all hollow setting, long gas groove has been seted up to the inside of pay-off axle, the first logical groove in multiunit intercommunication long gas groove has been seted up to the inside of inner gas ring, a plurality of second logical grooves have been seted up to the inside outer gas ring one side that is close to of inner gas ring, the inside of outer gas ring has been seted up with the corresponding third through groove of second through groove. Further, the outside fixedly connected with link of outer gaseous ring, link and organism inner wall fixed connection, fixed intercommunication has the trachea between actuating cylinder and the outer gaseous ring, the actuating cylinder inner wall is the annular equidistance and has seted up multiunit air escape groove near outer one end, the surface mounting of outer gaseous ring has multiunit check valve. Further, the air flow direction in the check valve is from the inside of the ou