High-voltage electric pulse device for crushing pretreatment of ores

Patent metadata

Field	Value
Publication number	US-11278911-B2
Application number	US-201916765279-A
Country	US
Kind code	B2
Filing date	Jul 16, 2019
Priority date	Jul 5, 2019
Publication date	Mar 22, 2022
Grant date	Mar 22, 2022

Abstract

A high-voltage electric pulse device for crushing pretreatment of ores includes an ore feeding bin, a pulse insulating barrel body, a supporting frame, a pulsation device, a product collector and a power supply. The pulse insulating barrel body and the pulsation device are assembled together, a pulsation insulating barrel body is connected with an actuating diaphragm, the actuating diaphragm is connected with an ore discharging outlet, a pulsation cone is arranged in the ore discharging outlet, the pulsation cone is hinged to a connecting rod, and the connecting rod is hinged to an eccentric wheel. Expanding and contracting devices are arranged on a cover plate, a copper bar of each expanding and contracting device is connected to a corresponding high-voltage ceramic capacitor through a high-voltage wire in parallel. A high-voltage negative pole is mounted on a screen cloth at the pulse insulating barrel body.

First claim

What is claimed is:

1. A high-voltage electric pulse device for crushing pretreatment of ores, comprising an ore feeding bin, a pulse insulating barrel body, a supporting frame, a pulsation device, a product collector and a power supply;
wherein an upper part of the pulse insulating barrel body is in a shape of a cylinder, a lower part of the pulse insulating barrel body is in a shape of an inverted truncated cone, a cover plate is arranged at a top portion of the pulse insulating barrel body, and a channel is arranged on the cover plate to communicate with the ore feeding bin;
wherein the supporting frame is sleeved on a side wall of the pulse insulating barrel body, and a bottom portion of the pulse insulating barrel body and the pulsation device are assembled together;
wherein the pulsation device consists of a pulsation insulating barrel body, an actuating diaphragm, an ore discharging outlet, a pulsation cone, a connecting rod and an eccentric wheel, wherein a water inlet is formed in a side wall of the pulsation insulating barrel body and communicates with a water pump, a bottom portion of the pulsation insulating barrel body is connected with a top portion of the actuating diaphragm, a bottom portion of the actuating diaphragm is connected with the ore discharging outlet, the pulsation cone is arranged in the ore discharging outlet, a bottom portion of the pulsation cone is hinged to one end of the connecting rod, the other end of the connecting rod is hinged to the eccentric wheel, the eccentric wheel is driven by a motor, and the actuating diaphragm is made of rubber; the ore discharging outlet communicates with a feeding inlet of the product collector, and a water outlet is formed in a side wall of the product collector;
wherein a plurality of expanding and contracting devices are arranged on the cover plate, wherein each expanding and contracting device consists of a copper bar, a high-voltage electrode, an upper fixing block, a lower fixing block and a spring, each upper fixing block is fixedly connected to an upper part of the corresponding copper bar, the lower fixing blocks are fixed to the cover plate, each copper bar penetrates through the corresponding lower fixing block and is in sliding and sealing connection with the corresponding lower fixing block, each high-voltage electrode is fixedly connected with a bottom portion of the corresponding copper bar, a top end of each spring is fixedly connected with the corresponding lower fixing block, a bottom end of each spring is fixedly connected with the corresponding high-voltage electrode, and each spring surrounds an outer part of the corresponding copper bar;
wherein the copper bars of the expanding and contracting devices are connected to two sets of high-voltage ceramic capacitors in parallel through high-voltage wires, the high-voltage ceramic capacitors and an alternate-current ignition transformer are assembled together, and the alternate-current ignition transformer and the power supply are assembled together through a one-way voltage regulator;
wherein a ground electrode is fixedly connected to a bottom end of the pulse insulating barrel body, and penetrates through the supporting frame to be earthed; and
wherein a screen cloth is fixedly mounted at a bottom end of the cylinder-shaped upper part of the pulse insulating barrel body, and a plurality of high-voltage negative poles are mounted on the screen cloth.

2. The high-voltage electric pulse device for crushing pretreatment of ores according to claim 1 , wherein a central axis of the eccentric wheel and the motor are assembled together, and a position where the connecting rod is hinged to the eccentric wheel is located at a part except the central axis.

3. The high-voltage electric pulse device for crushing pretreatment of ores according to claim 1 , wherein a water inlet of the water pump communicates with a water outlet of a water tank, and a water inlet of the water tank communicates with the water outlet in the side wall of the product collector.

4. The high-voltage electric pulse device for crushing pretreatment of ores according to claim 1 , wherein the screen cloth is made of stainless steel, and a hole diameter of the screen cloth is 2-10 mm.

5. The high-voltage electric pulse device for crushing pretreatment of ores according to claim 1 , wherein the pulse insulating barrel body is made of PVC, and the supporting frame and the cover plate are made of stainless steel.

6. The high-voltage electric pulse device for crushing pretreatment of ores according to claim 1 , wherein the high-voltage electrodes and the high-voltage negative poles are made of stainless steel, the high-voltage electrodes are in a shape of an inverted cone, and the high-voltage negative poles are in a shape of a cone.

7. The high-voltage electric pulse device for crushing pretreatment of ores according to claim 1 , wherein the lower fixing blocks and the cover plate are insulated through insulating washers.

8. The high-voltage electric pulse device for crushing pretreatment of ores according to claim 1 , wherein an inclined screen cloth is arranged in the product collector, an inclined angle between the inclined screen cloth and a level surface is 20-40 degrees, the inclined screen cloth is located above the water outlet in the side wall of the product collector, and a hole diameter of the inclined screen cloth is 2-10 mm.

9. The high-voltage electric pulse device for crushing pretreatment of ores according to claim 1 , wherein the pulsation insulating barrel body is made of PVC.

10. The high-voltage electric pulse device for crushing pretreatment of ores according to claim 1 , wherein the springs are compression springs, and a length of each spring under a natural state is greater than a distance between each high-voltage electrode and the corresponding lower fixing block.

Assignees

• Univ Northeastern

Inventors

• Yuan Shuai
• Gao Peng
• Han Yuexin
• Li Yanjun
• Han Liren

Classifications

• B02C2019/183

  Crushing by discharge of high electrical energy · CPC title

• B02C23/16

  with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material · CPC title

• B02C2023/165

  Screen denying egress of oversize material · CPC title

• B02C19/18 Primary

  Use of auxiliary physical effects, e.g. ultrasonic waves or irradiation, for disintegrating · CPC title