Device for continuous treatment of materials containing volatile components

Patent metadata

Field	Value
Publication number	US-11801552-B2
Application number	US-202217928471-A
Country	US
Kind code	B2
Filing date	Mar 24, 2022
Priority date	May 28, 2021
Publication date	Oct 31, 2023
Grant date	Oct 31, 2023

Abstract

Disclosed is a device for continuous treatment of materials containing volatile components, which belongs to the field of pyrometallurgical equipment. The device includes a feeding unit, a heating unit, a slag raking unit and a slag collecting unit. The feeding unit is configured to feed the materials with a push rod or in a spiral mode. The heating unit is provided with a square furnace body, and a first slag raking port is provided in the lower part of the furnace body. The slag collecting unit is provided with a slag discharging port at the lower portion thereof, is provided with a slag smashing port at the sidewall thereof, and is provided with a viewing port at the top thereof. The slag collecting unit and the heating unit are connected through a pipeline, thus achieving the pressure balance of the whole device during operation.

First claim

What is claimed is:

1. A device for continuous treatment of materials containing volatile components, comprising: a feeding unit, a heating unit, a slag raking unit, and a slag collecting unit, wherein the heating unit comprises a heating furnace, a charging port is formed in a top of the heating furnace, and a discharge port of the feeding unit communicates with the charging port of the heating unit; a gas outlet ( 4 ) is formed in an upper portion of a first sidewall of the heating unit, a first slag raking port ( 18 ) is formed in a lower portion of a second sidewall of the heating unit, and the second sidewall is opposite to the gas outlet ( 4 ); and the gas outlet ( 4 ) is configured to communicate with a volatile component collecting device;
the slag collecting unit comprises a slag collecting bin ( 13 ), a slag discharging port ( 14 ) and a slag smashing port ( 15 ); the slag discharging port ( 14 ) is arranged in a lower portion of the slag collecting bin ( 13 ), a first side of the slag collecting bin ( 13 ) is provided with the slag smashing port ( 15 ), and a second slag raking port ( 19 ) is formed in an upper portion of the first side of the slag collecting bin ( 13 ); the second slag raking port ( 19 ) of the slag collecting unit fixedly communicates with the first slag raking port ( 18 ) of the heating unit; the slag collecting unit communicates with the heating unit through a pipeline; and the pipeline is provided with a vacuum valve ( 16 ) and a KF tee joint ( 11 );
the slag raking unit comprises a first raking plate ( 7 ), a second raking plate ( 8 ) and a raking rod ( 9 ); the first raking plate ( 7 ) and the second raking plate ( 8 ) are detachably fixed to the raking rod ( 9 ), the first raking plate ( 7 ) is located in the heating unit, the second raking plate ( 8 ) is located in the slag collecting unit, and an end of the raking rod ( 9 ) is configured to be connected to a transmission device ( 17 ); the heating unit is provided with two supporting plates ( 5 ) for supporting the first raking plate ( 7 ); when the slag raking unit is out of use, the first raking plate ( 7 ) is configured to be located on a rightmost side of the heating unit, and the second raking plate ( 8 ) is configured to cover the second slag raking port ( 19 ) and isolate the slag collecting unit from the heating unit; the raking rod ( 9 ) of the slag raking unit is connected to a second sidewall of the slag collecting bin ( 13 ) by means of a dynamic seal ( 10 ).

2. The device for continuous treatment of materials containing volatile components according to claim 1 , wherein the feeding unit is configured to feed the materials using a push rod or in a spiral manner.

3. The device for continuous treatment of materials containing volatile components according to claim 2 , wherein the feeding unit comprises a motor ( 1 ), a conveying rod ( 2 ), a discharging pipe ( 3 ), a housing ( 20 ) and a feeding port ( 21 ); the motor ( 1 ) is connected to the conveying rod ( 2 ), the conveying rod ( 2 ) is located inside the housing ( 20 ), a top side of the housing ( 20 ) is provided with the feeding port ( 21 ), and a portion of a lower side of the housing ( 20 ) communicates with a top end of the heating unit through the discharging pipe ( 3 ); the conveying rod ( 2 ) is the push rod or a screw rod, and supporting bearings are arranged at two ends of the conveying rod ( 2 ); and an opening in a tail end, which is connected to the heating unit, of the discharging pipe ( 3 ) is enlarged.

4. The device for continuous treatment of materials containing volatile components according to claim 1 , wherein the heating furnace of the heating unit is square and is configured to be externally heated; and a lining of the heating furnace is made of stainless steel, corundum filler or ceramic refractory brick materials.

5. The device for continuous treatment of materials containing volatile components according to claim 1 , wherein the first slag raking port ( 18 ) and the second slag raking port ( 19 ) are square; the first slag raking port ( 18 ) extends into the second slag raking port ( 19 ) and is fixedly connected to the second slag raking port ( 19 ) by means of a slag raking port flange ( 6 ), a connecting portion between the first slag raking port ( 18 ) and the second slag raking port ( 19 ) is sealed with a rubber ring.

6. The device for continuous treatment of materials containing volatile components according to claim 1 , wherein a third sidewall of the slag collecting bin ( 13 ) has a predetermined inclination, a viewing port ( 12 ) is formed in a top of the slag collecting bin ( 13 ), and a heat insulation plate is arranged on the slag discharging port ( 14 ), and the heat insulation plate is configured to be taken off during slag discharging.

7. The device for continuous treatment of materials containing volatile components according to claim 1 , wherein an area of the second raking plate ( 8 ) is greater than an area of the first raking plate ( 7 ), while a thickness of the first raking plate ( 7 ) is greater than a thickness of the second raking plate ( 8 ); a right side of the first raking plate ( 7 ) and a left side of the second raking plate ( 8 ) are both provided with rib structures respectively, and each of the area of the first raking plate ( 7 ) and the area of the second raking plate ( 8 ) is greater than an area of the slag raking port.

8. The device for continuous treatment of materials containing volatile components according to claim 4 , wherein the heating furnace is configured to be externally heated by a resistance wire or a combustion gas.

9. The device for continuous treatment of materials containing volatile components according to claim 7 , wherein a connecting portion of both the pipeline and the slag collecting unit is at a side, away from the heating unit, of the viewing port ( 12 ).

Assignees

• Univ Kunming Science & Technology

Inventors

• Xu Baoqiang
• Shi Tengteng
• Yang Bin
• Jiang Wenlong
• Tian Yang
• Kong Lingxin
• Zhao Jinyang
• Wang Fei

Classifications

• B22D43/007 Primary

  by using scrapers · CPC title

• B22D43/00 Primary

  Mechanical cleaning, e.g. skimming of molten metals · CPC title

• Y02P10/20

  Recycling · CPC title