CN210528965U

CN210528965U - Furnace wall telescopic carbon-oxygen gun manipulator

Info

Publication number: CN210528965U
Application number: CN201921108119.5U
Authority: CN
Inventors: 丁宇航; 吴俊�; 吴伯洋
Original assignee: Jiangsu Hengli Metallurgy Equipment Co ltd
Current assignee: Jiangsu Hengli Metallurgy Equipment Co ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-05-15
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses a furnace wall telescopic carbon-oxygen gun manipulator, which relates to the field of electric arc furnace steelmaking and comprises a supporting seat and a cross arm, and is characterized in that one end of the cross arm is hinged on the supporting seat; one end of the cross arm, which is hinged with the supporting seat, is the front end of the cross arm, and the other end of the cross arm is the rear end of the cross arm; a lifting oil cylinder for driving the cross arm to rotate along a hinge point is arranged below the cross arm; a guide rail is arranged on the top surface of the cross arm in the length direction, chain wheels are respectively arranged on the side walls of two ends of the cross arm below the guide rail, and the two chain wheels on the same side of the cross arm are connected through a chain; install the travelling car on the guide rail, the carbon oxygen rifle is installed on the top of travelling car, is equipped with the connecting plate with chain fixed connection on the travelling car, the utility model discloses can accomplish the extension and go on in step with angular adjustment, the every single move scope is big, can keep best impact angle and distance when the molten steel constantly changes all the time.

Description

Furnace wall telescopic carbon-oxygen gun manipulator

Technical Field

The utility model relates to an electric arc furnace steelmaking field especially relates to a flexible carbon oxygen rifle manipulator of oven.

Background

The furnace door oxygen lance and the furnace wall oxygen lance are special equipment for supplying oxygen to the electric arc furnace, and the quality of the performance of the furnace door oxygen lance and the furnace wall oxygen lance has very important influence on the steelmaking process and directly influences the quality, energy consumption and production operation rate of steel.

The fixed furnace wall oxygen lance adopted at present has the effects of realizing the balanced melting of furnace materials, improving the production efficiency, reducing the power consumption and the like, but the smelting process and the metallurgical effect can not be better controlled by adjusting the position of the oxygen lance in different stages of melting, slagging, dephosphorization, decarburization and the like in the smelting process, so that most of manufacturers adopt a mechanical arm to replace the traditional fixed type so as to meet the production requirement. However, the carbon-oxygen lance manipulator in the prior art has a complex structure and is inflexible, cannot synchronously stretch and adjust the angle, has a small pitching range, and cannot always keep the optimal impact angle and distance when molten steel continuously changes.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a furnace wall telescopic carbon-oxygen lance manipulator which has high safety performance, sensitive operation, convenient maintenance, good slagging and decarbonization effects.

In order to realize the purpose of the utility model, the utility model adopts the technical scheme that: a furnace wall telescopic carbon-oxygen lance manipulator comprises a supporting seat and a cross arm, and is characterized in that one end of the cross arm is hinged to the supporting seat; one end of the cross arm, which is hinged with the supporting seat, is the front end of the cross arm, and the other end of the cross arm is the rear end of the cross arm; a lifting oil cylinder which drives the cross arm to rotate along a hinge point is arranged below the cross arm and is connected to the cross arm through a telescopic rod; a guide rail is arranged on the top surface of the cross arm in the length direction, chain wheels are respectively arranged on the side walls of two ends of the cross arm below the guide rail, the two chain wheels on the same side of the cross arm are connected through a chain, and the chain wheel positioned at the rear end of the cross arm is driven by a speed reduction motor; the movable trolley is mounted on the guide rail, a carbon-oxygen gun is mounted at the top end of the movable trolley, the head of the carbon-oxygen gun points to the front end of the cross arm, and a connecting plate fixedly connected with the chain is arranged on the movable trolley.

Furthermore, a limiting block is installed at the top of the front end of the cross arm, so that the movable trolley is prevented from slipping off the cross arm.

Furthermore, an infrared distance meter is installed at the top of the rear end of the cross arm, the telescopic distance of the carbon-oxygen gun can be displayed on an industrial personal computer in real time, and the oxygen blowing distance can be monitored in real time.

Furthermore, a protective cover plate is installed on the front side of the cross arm, so that molten iron is prevented from splashing to the manipulator and being damaged.

The utility model has the advantages that: the depth and the angle of the carbon-oxygen lance inserted into the furnace can be adjusted according to the conditions in the furnace during smelting, and the depth can reach: 3400mm, the pitch angle can reach: the angle is-20 to-35 degrees, so that the smelting process and the metallurgical effect are better controlled, the service life is prolonged, meanwhile, the slagging of the electric arc furnace is promoted, the decarburization efficiency is improved, and the problems of low stirring strength of a molten pool, serious molten steel peroxidation and low oxygen utilization rate caused by insufficient jet flow length in the later period of the furnace service are solved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: the device comprises a supporting seat 1, a cross arm 2, a lifting oil cylinder 3, an expansion link 31, a guide rail 4, a chain wheel 5, a chain 6, a speed reducing motor 7, a moving trolley 8, a carbon-oxygen lance 9, a limiting block 10, an infrared distance meter 11, a shield plate 12 and a connecting plate 81.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

As shown in figure 1, the furnace wall telescopic carbon-oxygen lance manipulator comprises a supporting seat 1 and a cross arm 2, wherein one end of the cross arm 2 is hinged on the supporting seat 1; one end of the cross arm 2, which is hinged with the supporting seat 1, is the front end of the cross arm 2, and the other end is the rear end of the cross arm 2; a lifting oil cylinder 3 which drives the cross arm 2 to rotate along a hinge point is arranged below the cross arm 2, and the lifting oil cylinder 3 is connected to the cross arm 2 through a telescopic rod 31; a guide rail 4 is arranged on the top surface of the cross arm 2 in the length direction, chain wheels 5 are respectively arranged on the side walls of two ends of the cross arm 2 below the guide rail 4, the two chain wheels 5 on the same side of the cross arm 2 are connected through a chain 6, and the chain wheel 5 positioned at the rear end of the cross arm 2 is driven by a speed reducing motor 7; a moving trolley 8 is arranged on the guide rail 4, a carbon-oxygen lance 9 is arranged at the top end of the moving trolley 8, the head of the carbon-oxygen lance 9 points to the front end of the cross arm 2, and a connecting plate 81 fixedly connected with the chain 6 is arranged on the moving trolley 8; the top of the front end of the cross arm 2 is provided with a limiting block 10 to prevent the movable trolley 8 from slipping off the cross arm 2; the top of the rear end of the cross arm 2 is provided with an infrared distance meter 11 which can display the telescopic distance of the carbon-oxygen lance 9 on an industrial personal computer in real time and monitor the oxygen blowing distance in real time; a protective cover plate 12 is arranged on the front side of the cross arm 2 to prevent molten iron from splashing to the manipulator and causing damage.

The depth of the carbon-oxygen lance 9 inserted into the furnace is controlled and adjusted by moving the movable trolley 8 back and forth on the guide rail 4, and the lifting oil cylinder 3 is lifted and lowered to control the rotation of the cross arm 2 relative to the hinged part, so that the two can be synchronously carried out, and the smelting process and the metallurgical effect are controlled.

The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. A furnace wall telescopic carbon-oxygen lance manipulator comprises a supporting seat and a cross arm, and is characterized in that one end of the cross arm is hinged to the supporting seat; one end of the cross arm, which is hinged with the supporting seat, is the front end of the cross arm, and the other end of the cross arm is the rear end of the cross arm; a lifting oil cylinder which drives the cross arm to rotate along a hinge point is arranged below the cross arm and is connected to the cross arm through a telescopic rod; a guide rail is arranged on the top surface of the cross arm in the length direction, chain wheels are respectively arranged on the side walls of two ends of the cross arm below the guide rail, the two chain wheels on the same side of the cross arm are connected through a chain, and the chain wheel positioned at the rear end of the cross arm is driven by a speed reduction motor; the movable trolley is mounted on the guide rail, a carbon-oxygen gun is mounted at the top end of the movable trolley, the head of the carbon-oxygen gun points to the front end of the cross arm, and a connecting plate fixedly connected with the chain is arranged on the movable trolley.

2. The furnace wall telescopic carbon-oxygen lance manipulator as claimed in claim 1, wherein a limiting block is mounted at the top of the front end of the cross arm.

3. The furnace wall telescopic carbon-oxygen lance manipulator as claimed in claim 1, wherein an infrared distance meter is mounted on the top of the rear end of the cross arm.

4. The furnace wall telescopic carbon-oxygen lance manipulator as claimed in claim 1, wherein a guard plate is mounted at the front end of the cross arm.