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CN-122006881-A - Automatic crushing and grading device for high-purity barium carbonate production and processing

CN122006881ACN 122006881 ACN122006881 ACN 122006881ACN-122006881-A

Abstract

The invention discloses an automatic crushing and grading device for high-purity barium carbonate production and processing, which comprises a screening container, a blanking mechanism, an exhaust fan, a grading screen mechanism and a grading screen mechanism, wherein a partition plate is fixed at the inner bottom of the screening container, the blanking mechanism is arranged at the top opening of the screening container in a sealing mode, the exhaust fan is arranged at the side opening of the screening container in a sealing mode, an acquisition container is fixedly communicated with the air outlet of the exhaust fan, a filter cover is arranged in a round opening of the acquisition container, the grading screen mechanism is provided with a plurality of grading screen mechanisms and is uniformly arranged on the partition plate, and powder in the grading screen mechanism is screened out through continuous vibration and is sucked into the acquisition container by the exhaust fan. The device performs gradient screening by combining machinery and air force, and obviously improves the grain diameter control precision and continuity of the high-purity barium carbonate production.

Inventors

  • WANG QIANG
  • LIU BIN
  • SHEN JING

Assignees

  • 重庆新申世纪电子材料有限公司

Dates

Publication Date
20260512
Application Date
20260210
Priority Date
20251215

Claims (10)

  1. 1. The utility model provides a high-purity barium carbonate production and processing is with automatic classification device that smashes which characterized in that, it includes: a separation plate is fixed at the inner bottom of the screening container (2); The blanking mechanism (1) is hermetically arranged at the top opening of the screening container (2); The exhaust fan (6) is hermetically arranged at the side opening of the screening container (2), the air outlet of the exhaust fan (6) is fixedly communicated with the collecting container (4), and a filter cover (5) is arranged in the round opening of the collecting container (4); the classifying screen mechanisms are provided with a plurality of classifying screen mechanisms and are uniformly arranged on the partition plates, and each classifying screen mechanism screens out powder in the classifying screen mechanisms through continuous vibration and sucks the powder into the collecting container (4) through the exhaust fan (6); And a recovery container (3) which is communicated with the bottom opening of the screening container (2) through a conveying mechanism, so as to recover the granular materials screened out by the classifying screen mechanism.
  2. 2. The automatic crushing and grading device for high-purity barium carbonate production and processing according to claim 1, wherein the grading screen mechanism comprises a lower screen assembly (8), a filter cartridge (9), an introduction cylinder (10) and a telescopic ring (11) which are sequentially communicated from bottom to top, wherein the bottom end opening of the lower screen assembly (8) is communicated with the through opening of the partition plate in a sealing manner, and the top end opening of the telescopic ring (11) is communicated with the injection opening on the top wall of the screening container (2) in a sealing manner.
  3. 3. The automatic crushing and grading device for producing and processing high-purity barium carbonate according to claim 2, wherein the filter cylinder (9) adopts an inverted cone structure.
  4. 4. The automatic crushing and classifying device for producing and processing high-purity barium carbonate according to claim 2, wherein the lower screen assembly (8) comprises: The inner cavity of the main seat (804) is formed by sequentially communicating a first granule discharging cavity, a powder discharging cavity and a second granule discharging cavity; The slip ring (803) is matched and glidingly connected to the side wall of the top of the main seat (804) and slides up and down by the driver, and the filter cylinder (9) is connected to the slip ring (803); The blocking disc (801) is movably arranged in the first granule discharging cavity, one end of a plurality of inverted U-shaped rods (802) is connected to the side wall of the blocking disc (801), and the other end of each U-shaped rod (802) is connected to the slip ring (803); the discharging hopper (808) is arranged in the second powder discharging cavity, and the top of the discharging hopper (808) is attached to and fixed on the cavity wall of the second powder discharging cavity; And the plugging assembly is arranged in the second powder discharge cavity, can plug the bottom end opening of the discharging hopper (808), and is pushed down and opened by a flexible ram fixed on the plugging disc (801) along with the downward sliding action of the sliding ring (803).
  5. 5. The automatic crushing and grading device for high-purity barium carbonate production and processing according to claim 4, wherein the driver adopts electric oscillators (815) and is provided with at least three push blocks (814) which are uniformly arranged on the outer wall steps of the main seat (804), and the driving end of each electric oscillator (815) is connected with the bottom wall of the slip ring (803); a plurality of springs (813) which are obliquely arranged are also connected between the slip ring (803) and the main seat (804).
  6. 6. The automatic crushing and grading device for high-purity barium carbonate production and processing according to claim 5, wherein the inner diameter of the upper part of the first granule discharging cavity is smaller than the inner diameter of the lower part of the first granule discharging cavity, the inner diameter of the upper part of the first granule discharging cavity is larger than the outer diameter of the blocking disc (801), and the distance between the outer wall of the blocking disc (801) and the upper cavity wall of the first granule discharging cavity is 5-9 mu m.
  7. 7. The automatic crushing and grading device for high-purity barium carbonate production and processing according to claim 6, wherein the bottom end of the discharging hopper (808) is provided with an oblique notch.
  8. 8. The automatic crushing and grading device for high-purity barium carbonate production and processing according to claim 7, wherein the blocking component consists of a sealing plate (807), a crank (806), a pin and a torsion spring (805), wherein the sealing plate (807) is fixedly arranged at one end part of the crank (806), the other end part of the crank (806) is rotatably connected to a fixed pin fixed in a second granule arranging cavity, the torsion spring (805) is connected between the pin and the crank (806), and the sealing plate (807) can be adaptively blocked at an oblique notch of a blanking hopper (808) under the action of elastic torsion of the torsion spring (805); A stop pin is also secured within the second granule discharge chamber and is positioned in the rotational path of the crank (806).
  9. 9. The automatic crushing and grading device for producing and processing high-purity barium carbonate according to claim 8, wherein the flexible lance comprises: the two compression bars (816) are arranged, a sliding cavity is arranged in each compression bar (816), and a sliding block (812) is arranged in each sliding cavity in a matched sliding manner; the two ends of the sliding column (810) respectively penetrate into the sliding cavities of the two pressing rods (816) and are fixedly connected with the sliding block (812); And a first spring (811) wound on a side wall of the spool (810), and the first spring (811) is connected between the two compression bars (816); wherein the bottom end of the lower pressure bar (816) is hemispherical.
  10. 10. The automatic crushing and grading device for high-purity barium carbonate production and processing according to claim 4, wherein a plurality of powder discharging ports (809) are formed in the cavity wall of the powder discharging cavity in a penetrating mode, and a filter screen is arranged in each powder discharging port (809).

Description

Automatic crushing and grading device for high-purity barium carbonate production and processing Technical Field The invention particularly relates to the technical field of barium carbonate production equipment, in particular to an automatic crushing and grading device for high-purity barium carbonate production and processing. Background The high-purity barium carbonate (BaCO 3) is used as a key precursor of electronic ceramics (such as barium titanate), optical glass and special catalysts, the powder particle size distribution and purity of the high-purity barium carbonate directly influence the dielectric property, the light transmittance and the reactivity of downstream products, and the crushing and grading technology in the existing production has the following defects, so that the industrial application of the high-purity barium carbonate is restricted: the conventional vibrating screen depends on a single-aperture screen, materials with large grain size span (for example, coarse crushing and containing 1-100 mu m particles) need to be classified for multiple times, the energy consumption is high (the unit energy consumption is more than or equal to 15 kWh/t), hard particles (for example, uncrushed BaCO 3 agglomerates) are extremely easy to be blocked in the gap of the screen, frequent shutdown and cleaning are needed, the continuous operation time is less than 24 hours, and the blocking rate of the screen is counted to be more than 30%. Disclosure of Invention Therefore, the invention provides an automatic crushing and grading device for producing and processing high-purity barium carbonate to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme that the automatic crushing and grading device for the production and processing of the high-purity barium carbonate comprises the following components: A baffle plate is fixed at the inner bottom of the screening container; The discharging mechanism is hermetically arranged at the top opening of the screening container; the exhaust fan is hermetically arranged at a side opening of the screening container, an air outlet of the exhaust fan is fixedly communicated with the collecting container, and a filter cover is arranged in a round opening of the collecting container; The classifying screen mechanisms are provided with a plurality of classifying screen mechanisms and are uniformly arranged on the partition plates, and each classifying screen mechanism screens out powder in the classifying screen mechanisms through continuous vibration and sucks the powder into the collecting container through the exhaust fan; And the recovery container is communicated with the bottom opening of the screening container through the conveying mechanism, so that the granular materials screened out by the classifying screen mechanism are recovered. Further, as the preference, the classifying screen mechanism comprises lower screen assembly, a filter cylinder, an introduction cylinder and a telescopic ring which are communicated sequentially from bottom to top, wherein the bottom port of the lower screen assembly is communicated with the through port of the partition plate in a sealing way, and the top port of the telescopic ring is communicated with the injection port on the top wall of the screening container in a sealing way. Further preferably, the filter cartridge adopts an inverted cone structure. Further, preferably, the lower screen assembly includes: the inner cavity of the main seat is formed by sequentially communicating a first granule discharging cavity, a powder discharging cavity and a second granule discharging cavity; the slip ring is matched and connected with the side wall of the top of the main seat in a sliding way, and is driven to slide up and down, and the slip ring is connected with a filter cylinder; the blocking disc is movably arranged in the first granule discharging cavity, one end of a plurality of inverted U-shaped rods is connected to the side wall of the blocking disc, and the other end of each U-shaped rod is connected to the slip ring; The top of the discharging hopper is attached to and fixed on the cavity wall of the second powder discharging cavity; and the plugging assembly is arranged in the second powder discharge cavity, can plug the bottom end opening of the discharging hopper, and is pushed down by a flexible ram fixed on the plugging disc along with the sliding of the sliding ring and is opened. Further, as preferable, the driver adopts electric oscillators, and is provided with at least three push blocks which are uniformly arranged on the outer wall steps of the main seat, and the driving end of each electric oscillator is connected with the bottom wall of the slip ring; and a plurality of springs II which are obliquely arranged are also connected between the slip ring and the main seat. Further, preferably, the inner diameter of the upper part of t