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CN-121988434-A - Electronic grade silver powder air hammer dust separation device and method

CN121988434ACN 121988434 ACN121988434 ACN 121988434ACN-121988434-A

Abstract

The invention belongs to the technical field of dust separation devices, in particular to an electronic grade silver powder air hammer dust separation device and a method, comprising a base, wherein the upper end of the base is provided with a lower dust separation shell and an upper dust separation shell, the center of the top of the upper dust separation shell is embedded with a dust overflow pore plate, the outer wall of the dust separation shell is uniformly and fixedly provided with a plurality of supporting rollers, the rear side of the upper end of the base is fixedly provided with an electric push rod, the movable end of the electric push rod is fixedly connected with a lifting plate, and the lifting plate is fixedly connected with the rear side of the dust separation shell. According to the invention, the dispersed silver powder is gathered to accurately align the effective impact area of the air hammer, and the placement angle of the trough is adjusted after impact, so that the uniform impact of the whole area is realized, the transposition of the upper silver powder and the lower silver powder is forced to strengthen the gas-solid contact, the agglomerated and hardened silver powder can be rapidly dispersed in a lossless manner, the impact void and the local excessive treatment are avoided, the single impact dispersion qualification rate is greatly improved, the uniformity of the particle size distribution of the silver powder and the stability of batch performance are ensured, and the whole treatment period is shortened.

Inventors

  • HOU TIANWU
  • JI YUETIAN
  • LI ZHUTING
  • HE CHEN

Assignees

  • 河南金渠银通金属材料有限公司

Dates

Publication Date
20260508
Application Date
20260206

Claims (8)

  1. 1. The electronic silver powder air hammer dust selecting device comprises a base (1), wherein a lower dust selecting shell (2) and an upper dust selecting shell (3) are arranged at the upper end of the base (1), a dust overflow pore plate (4) is embedded in the center of the top of the upper dust selecting shell (3), a plurality of supporting rollers (5) are uniformly and fixedly arranged on the outer wall of the lower dust selecting shell (2), an electric push rod (6) is fixedly arranged on the rear side of the upper end of the base (1), a lifting plate (7) is fixedly connected with the movable end of the electric push rod (6), and the lifting plate (7) is fixedly connected with the rear side of the upper dust selecting shell (3), and the electronic silver powder air hammer dust selecting device is characterized by further comprising an elastic membrane (8), an air hammer impact assembly (9), a cyclone separation assembly (10), a rotary supporting assembly (11), a vibration aggregate assembly (12) and a turning assembly (13); the dust separation device comprises a dust separation shell (2), an elastic membrane (8), a pneumatic hammer impact assembly (9), a cyclone separation assembly (10), a rotary support assembly (11), a vibration aggregate assembly (12) and a turnover assembly (13), wherein the side of the elastic membrane (8) is fixedly connected to the bottom of the inner wall of the dust separation shell (2), the pneumatic hammer impact assembly (9) is fixedly arranged at the top of the dust separation shell (3) and penetrates into the dust separation shell (3), the cyclone separation assembly (10) is fixedly connected to the dust separation shell (3) and covers the dust separation orifice plate (4), the rotary support assembly (11) is fixedly arranged between a base (1) and the dust separation shell (2) and is used for driving the dust separation shell (2) to rotate, the vibration aggregate assembly (12) is fixedly arranged at the upper end of the base (1) and is arranged at the center of the bottom of the dust separation shell (2), and the top of the vibration aggregate assembly (12) stretches into the dust separation shell (2) through a through hole formed in the bottom of the dust separation shell (2) and is in contact with the elastic membrane (8), and the turnover assembly (13) is arranged on the side of the bottom of the dust separation shell (2).
  2. 2. The electronic silver powder air hammer dust selecting device according to claim 1, wherein the air hammer impact assembly (9) comprises a plurality of air hammer pipes (91) fixedly sleeved at the top of the dust selecting shell (3) at equal intervals, the air hammer pipes (91) are annularly distributed, an electric control valve (92) is arranged at the bottom of each air hammer pipe (91), the top of each air hammer pipe (91) is fixedly communicated with one annular pipe (93), the upper ends of the annular pipes (93) are fixedly communicated with an air supply pipe (94), and a nitrogen pump (95) is arranged on each air supply pipe (94).
  3. 3. The electronic grade silver powder air hammer dust separation device according to claim 1, wherein the cyclone separation assembly (10) comprises a housing (101) fixedly connected to the top of the dust separation housing (3), an air inlet pipe (102) is fixedly sleeved on the top of the housing (101), a cyclone separator (103) is communicated with the rear end of the air inlet pipe (102), and an air inlet cover (104) is fixedly communicated with one end of the air inlet pipe (102) located in the housing (101).
  4. 4. The electronic grade silver powder air hammer dust selecting device according to claim 1, wherein the rotary supporting component (11) comprises a positioning cylinder (111) fixed at the upper end of the base (1), a supporting cylinder (112) is sleeved outside the positioning cylinder (111) through a bearing in a rotary mode, the supporting cylinder (112) is fixedly connected to the bottom center of the dust selecting shell (2), and a motor rotary component (113) for driving the supporting cylinder (112) to rotate is fixedly arranged at the upper end of the base (1).
  5. 5. The electronic silver powder air hammer dust selecting device according to claim 1, wherein the vibration aggregate component (12) comprises a fixing shell (121) fixedly arranged at the upper end of the base (1), a plurality of guide sliding rods (122) which are vertically arranged are symmetrically and fixedly connected to the inner wall of the fixing shell (121), a plurality of guide sliding rods (122) are externally sleeved with a same reciprocating plate (123) in a sliding manner, a plurality of reset springs (124) which are fixedly connected to the upper end of the reciprocating plate (123) and the top of the inner wall of the fixing shell (121) in a sleeved manner are fixedly connected to the outer side of the guide sliding rods (122), an impact rod (125) is fixedly connected to the upper end of the reciprocating plate (123), a through hole formed in the top of the fixing shell (121) penetrates through the outer side of the fixing shell (121), a ball striking ball (126) is fixedly connected to the upper end of the impact rod (125), a permanent magnet plate (127) is fixedly arranged at the lower end of the reciprocating plate (123), and an electromagnetic plate (128) is fixedly arranged at the bottom of the inner wall of the fixing shell (121).
  6. 6. The electronic silver powder pneumatic hammer dust selecting device according to claim 1, wherein the material turning component (13) comprises a plurality of push rods (131) which are uniformly and movably sleeved at the bottom of the dust selecting shell (2), the upper ends of the push rods (131) are fixedly connected with the push rods (132), the bottom of the inner wall of the dust selecting shell (2) is provided with a placing groove which is embedded with the push rods (132), the lower ends of the push rods (131) are fixedly connected with a stress plate (133), the upper ends of the stress plate (133) and the bottom of the dust selecting shell (2) are fixedly connected with a pressing spring (134) which is sleeved outside the push rods (131), the bottom of the dust selecting shell (2) is fixedly connected with a plurality of mounting shells (135) which are sleeved outside the stress plate (133), the side walls of the mounting shells (135) are rotatably connected with transmission shafts (136), the shaft walls of the transmission shafts (136) which are positioned in the mounting shells (135) are fixedly sleeved with cams (137), the outer walls of the mounting shells (135) are fixedly connected with inner rotation shafts (138), the inner rotation shafts (138) are fixedly connected with the transmission shafts (139), the inner shafts (139) through the transmission shafts (139), the upper end of the base (1) is fixedly connected with a gear ring (1312) meshed with a plurality of gears (1311).
  7. 7. The electronic-grade silver powder air hammer dust separation device according to claim 2 is characterized in that an air pressure sensor (96) is fixedly arranged on the annular tube (93), and the air pressure value of nitrogen input into the annular tube (93) is monitored in real time.
  8. 8. A method of using the electronic grade silver powder air hammer dust separation device of any one of claims 1-7, comprising the steps of: s1, silver powder to be treated is placed in a dust separation shell (2), and then a dust separation shell (3) moves towards the dust separation shell (2) to form a sealed cavity; s2, the vibration aggregate component (12) is used for boosting and gathering the silver powder placed on the elastic membrane (8) to the peripheral side, and the air hammer impact component (9) is used for impact dispersion of the silver powder; s3, after the air hammer impact assembly (9) acts once, the rotary support assembly (11) drives the dust separation shell (2) to rotate for 30 degrees; s4, in the process of rotating the dust separation shell (2), the upper and lower material layers are transposed through the material turning component (13), and then the silver powder layer is impacted through the air hammer impact component (9); s5, the dissipated silver powder enters a cyclone separation assembly (10) to collect the silver powder.

Description

Electronic grade silver powder air hammer dust separation device and method Technical Field The invention belongs to the technical field of dust separation devices, and particularly relates to an electronic grade silver powder air hammer dust separation device and method. Background The electronic grade silver powder is used in the electronic industry, because the electronic grade silver powder has fine particle size and large specific surface area, liquid bridges among particles are easy to adhere, agglomerate and even harden due to Van der Waals force, electrostatic force and trace moisture, the traditional treatment method mainly treats the agglomerated silver powder in a mode of breaking by mechanical external force (such as rolling), the treatment mode easily causes deformation and lattice defect of silver powder particles, the conductivity is influenced, and the silver powder is easy to adhere to mechanical equipment, so that the screening quality of the electronic grade silver powder is influenced. Aiming at the problems, the prior art has a better solution, such as an electronic grade silver powder air hammer dust selecting device provided by the patent with the patent publication number of CN206793233U, the air hammer dust is selected to directly tear the internal binding force of the hardened silver powder through the instantaneous shearing force and the impact force generated by the directional impact of high-pressure gas, so that silver powder particles are completely dispersed into primary particle sizes, and the dispersed particles have no deformation and no lattice defect, and have narrower particle size distribution. However, the silver powder still has the defects that the silver powder is scattered in the trough, so that high-pressure air flow of an air hammer is difficult to comprehensively and uniformly act on all the silver powder, the silver powder in a partial area cannot be effectively impacted, energy waste is caused in an area where the air flow does not act, the treatment efficiency is obviously reduced, when the silver powder is naturally accumulated in the trough, a layered structure with loose silver powder on the upper layer and compact hardened silver powder on the lower layer is formed, and the compact hardened silver powder on the lower layer is difficult to fully contact with the air flow of the air hammer, so that the impact crushing effect is poor, and the overall treatment quality and efficiency are seriously influenced. Disclosure of Invention The invention aims to solve the problems and provides an electronic grade silver powder air hammer dust selecting device and method. In order to achieve the above purpose, the present invention adopts the following technical scheme: the electronic silver powder air hammer dust separation device comprises a base, wherein the upper end of the base is provided with a lower dust separation shell and an upper dust separation shell, a dust overflow pore plate is embedded in the center of the top of the upper dust separation shell, a plurality of supporting rollers are uniformly and fixedly arranged on the outer wall of the lower dust separation shell, an electric push rod is fixedly arranged on the rear side of the upper end of the base, the movable end of the electric push rod is fixedly connected with a lifting plate, and the lifting plate is fixedly connected with the rear side of the upper dust separation shell; The cyclone separation assembly is fixedly connected to the upper dust separation shell and covers the dust overflow pore plate, the rotary support assembly is fixedly arranged between the base and the lower dust separation shell and is used for driving the lower dust separation shell to rotate, the vibration aggregate assembly is fixed at the upper end of the base and is arranged at the center of the bottom of the lower dust separation shell, the top of the vibration aggregate assembly extends into the lower dust separation shell through a through hole formed in the bottom of the lower dust separation shell and is in contact with the elastic membrane, and the turnover assembly is arranged at the side of the bottom of the lower dust separation shell. In the electronic-grade silver powder air hammer dust selecting device, the air hammer impact assembly comprises a plurality of air hammer pipes fixedly sleeved at the top of the dust selecting shell at equal intervals, the air hammer pipes are annularly distributed, an electric control valve is arranged at the bottom of each air hammer pipe, the top of each air hammer pipe is fixedly communicated with one annular pipe, the upper ends of the annular pipes are fixedly communicated with an air supply pipe, and a nitrogen pump is arranged on each air supply pipe. In the electronic-grade silver powder air hammer dust separation device, the cyclone separation assembly comprises a housing fixedly connected to the top of the dust separation housing, an air inlet pipe is fixedly insert