Same-cavity integrated vertical high-speed multistage superfine pulverizing device and method for walnut shells

Patent metadata

Field	Value
Publication number	US-11951487-B2
Application number	US-202017285627-A
Country	US
Kind code	B2
Filing date	May 9, 2020
Priority date	Apr 13, 2020
Publication date	Apr 9, 2024
Grant date	Apr 9, 2024

Abstract

The present invention discloses a same-cavity integrated vertical high-speed multistage superfine pulverizing device and method for walnut shells. The same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells includes a double-channel sliding type feeding device and a same-cavity integrated vertical pulverizing device. The same-cavity integrated vertical pulverizing device includes a material lifting disc and a same-cavity integrated vertical pulverizing barrel. A first-stage coarse crushing region, a second-stage fine crushing region, a third-stage pneumatic impact micro pulverizing region and a fourth-stage airflow mill superfine pulverizing region are disposed in the same-cavity integrated vertical pulverizing barrel. Walnut shells falling through the double-channel sliding type feeding device are uniformly lifted by the material lifting disc to a wedge-shaped gap of the first-stage coarse crushing region to be coarsely crushed, and coarsely crushed materials are finely crushed by the second-stage fine crushing region through a two-stage wedge-shaped direct-through gradually reducing gap. The third-stage pneumatic impact micro pulverizing region performs high-speed collision on finely crushed walnut shell particles, and walnut shell fine particles are carried by a high-speed airflow and are collided and violently rubbed to be pulverized. The microparticle grading is realized by the fourth-stage airflow mill superfine pulverizing region by using arc-shaped blades, and microparticles conforming to a particle size condition are attracted out through negative pressure attraction.

First claim

What is claimed is:

1. A same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells, comprising:
a double-channel sliding type feeding device and a same-cavity integrated vertical pulverizing device, wherein
the double-channel sliding type feeding device comprises a first spiral inclined chute and a second spiral inclined chute, which are oppositely arranged and configured to allow walnut shells to slide down through the first spiral inclined chute and the second spiral inclined chute into the same-cavity integrated vertical pulverizing device;
the same-cavity integrated vertical pulverizing device comprises a material lifting disc and a same-cavity integrated vertical pulverizing barrel, wherein the same-cavity integrated vertical pulverizing barrel is internally configured with a first-stage coarse crushing region, a second-stage fine crushing region, a third-stage pneumatic impact micro pulverizing region and a fourth-stage airflow mill superfine pulverizing region;
the material lifting disc is configured to uniformly lift the walnut shells that have slid down through the first spiral inclined chute and the second spiral inclined chute into a wedge-shaped gap of the first-stage coarse crushing region, wherein the first-stage coarse crushing region is configured to coarsely crush the walnut shells to produce coarsely crushed materials, and the second-stage fine crushing zone is configured to finely crush the coarsely crushed materials through a two-stage wedge-shaped direct-through gradually reducing gap to obtain finely crushed walnut shell particles;
the third-stage pneumatic impact micro pulverizing region is configured to perform high-speed collision on the finely crushed walnut shell particles, and the finely crushed walnut shell particles are subjected to collision and violent rubbing while being carried by a high-speed airflow for pulverizing; and
the fourth-stage airflow mill superfine pulverizing region is configured to perform microparticle grading is using arc-shaped blades, and to attract out microparticles conforming to a particle size condition using negative pressure attraction.

2. The same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells according to claim 1 , wherein the double-channel sliding type feeding device comprises the first spiral inclined chute and the second spiral inclined chute in opposite arrangement and welded onto a connecting plate, a feeding hopper is positioned above a feeding opening of the first spiral inclined chute and the second spiral inclined chute, and the feeding hopper is fixedly connected with the connecting plate through a bending connecting plate.

3. The same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells according to claim 1 , further comprising a machine frame, wherein the machine frame comprises a horizontal chassis seat, fixed arc plates and support plates, a plurality of vertical upright posts are disposed on the horizontal chassis seat, two of the fixed arc plates are respectively connected onto the corresponding vertical upright posts to form a space for accommodating the same-cavity integrated vertical pulverizing device together with the horizontal chassis seat, the support plates in staggered arrangement are disposed on the upper ends of the vertical upright posts, and the double-channel sliding type feeding device is fixed through the support plates.

4. The same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells according to claim 1 , wherein the material lifting disc synchronously rotates at a high speed along with an upper main shaft, material shifting teeth are disposed on the top of the material lifting disc, which is adapted to uniformly lift the falling walnut shells into the wedge-shaped gap of the first-stage coarse crushing region.

5. The same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells according to claim 1 , wherein the first-stage coarse crushing region consists of an upper stator and an upper rotor, using the wedge-shaped gap to achieve coarse crushing, the upper stator is fixed to a barrel wall, and the upper rotor is in keyed joint with the upper main shaft to synchronously rotate; and the upper stator and the upper rotor both use fine- pitch longitudinal trapezoidal teeth.

6. The same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells according to claim 1 , wherein the second-stage fine crushing region consists of a lower stator and a lower rotor, using the two-stage wedge-shaped direct-through gradually reducing gap to achieve fine crushing, the lower stator is fixed to a barrel wall, and the lower rotor is in keyed joint with the upper main shaft to synchronously rotate; and the lower stator and the lower rotor both use fine-pitch transverse sharp patterned teeth.

7. The same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells according to claim 1 , wherein the third-stage pneumatic impact micro pulverizing region comprises lower airflow guide pipes, lower spray nozzles, spiral crushing gratings and an inner lining layer, the lower airflow guide pipes are respectively connected with the lower spray nozzles, the lower spray nozzles are connected with a barrel, spray nozzle outlets are connected with the barrel in a penetrating way, the spiral crushing gratings are welded to a lower main shaft, providing high-speed collision on the finely crushed walnut shell particles, assisting in pulverization, tooth-shaped micro bulges are disposed on an inner surface of the inner lining layer, and the tooth-shaped micro bulges are adapted to engage with the finely crushed walnut shell particles carried by a high-speed airflow, thus effectuating pulverization through collision and violently rubbing.

8. The same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells according to claim 1 , wherein the fourth-stage airflow mill superfine pulverizing region comprises upper airflow guide pipes, upper spray nozzles, a grading device and a negative pressure material attraction device, and the upper airflow guide pipes are respectively connected with the upper spray nozzles;
and the upper spray nozzles are connected to the barrel, and spray nozzle outlets are connected with an inner barrel in a penetrating way.

9. The same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells according to claim 8 , wherein the grading device consists of arc-shaped blades, channels of the arc-shaped blades are configured to have equal cross section areas throughout to reduce pressure difference resistance and stabilize a flow field between the blades, thereby facilitating the microparticle grading, and the negative pressure material attraction device provides negative pressure attraction to attract out and collect microparticles that conform to the particle size condition.

10. A same-cavity integrated vertical high-speed multistage superfine pulverizing method for walnut shells, comprising:
lifting the walnut shells after being broken to remove kernels to a wedge-shaped gap of a first-stage coarse crushing region, so that the walnut shells receive high-speed collision, shearing and extrusion effects of fine-pitch longitudinal trapezoidal teeth of a stator and a rotor in a process of sliding down along the wedge-shaped gap when the size of the walnut shells is the same as the size of a certain position of the wedge-shaped gap, and the walnut shells are crushed into coarse particles to fall into a s

Assignees

• Univ Qingdao Technology
• Res Institute Of Agricultural Mechanization Xinjiang Academy Of Agricultural Sciences
• Xinjiang Jiang Ning Light Industrial Machinery Engineering Tech Co Ltd

Inventors

• Li Changhe
• Liu Mingzheng
• Wang Xiaoming
• Yang Huimin
• Li Xinping
• Liu Xiangdong
• Turdi Tuluhon
• Che Ji
• Gao Lianxing
• Zhao Huayang
• Zhang Xiaowei
• Zhang Yanbin
• Chen Yifei
• Hou Yali

Classifications

• B02C23/38 Primary

  in apparatus having multiple crushing or disintegrating zones · CPC title

• B02C19/005

  the materials to be pulverised being disintegrated by collision of, or friction between, the material particles (jet mills B02C19/06) · CPC title

• B02C21/00 Primary

  Disintegrating plant with or without drying of the material (for grain B02C9/04) · CPC title

• B02C23/02

  Feeding devices ({for grain mills B02C11/04; for roller mills B02C4/286}; transport devices in general B65G) · CPC title

• B02C23/30

  the applied gas acting to effect material separation (B02C23/34 takes precedence) · CPC title