CN216919310U

CN216919310U - Blast furnace coal powder spray gun tube with pipeline blockage clearing structure

Info

Publication number: CN216919310U
Application number: CN202122508865.7U
Authority: CN
Inventors: 张露
Original assignee: Chengdu Yulin General Equipment Co ltd
Current assignee: Chengdu Yulin General Equipment Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-07-08
Anticipated expiration: 2031-10-19

Abstract

The utility model discloses a blast furnace coal powder spray gun barrel with a pipeline blockage clearing structure, which belongs to the field of coal powder spray guns and comprises a coal spray gun barrel, wherein a fixed disc is fixedly connected to the side wall of the coal spray gun barrel, a servo motor is fixedly arranged on the side wall of one side of the fixed disc, an output shaft of the servo motor penetrates through the inside of the fixed disc and extends to the side wall of the other side of the fixed disc, a rotating cylinder is rotatably connected to the inside of the fixed disc, a tooth groove is formed in the inside of the rotating cylinder, a gear is arranged on the output shaft of the servo motor, and the gear is meshed with the tooth groove for connection. So as to avoid the occurrence of clogging.

Description

Blast furnace coal powder spray gun tube with pipeline blockage clearing structure

Technical Field

The utility model relates to the technical field of pulverized coal spray guns, in particular to a blast furnace pulverized coal spray gun tube with a pipeline blockage clearing structure.

Background

Most blast furnaces adopt a pulverized coal blowing process to save coke and reduce coke ratio, thereby reducing the pig iron cost. However, because the spray gun device is washed by high temperature, high pressure and pulverized coal, the pulverized coal is easy to stick on the inner side wall of the gun barrel after being used for a long time, so that the inner diameter of the gun barrel is shortened, the coal injection gun barrel is blocked, the coal injection amount of each tuyere of the blast furnace is damaged, and the furnace temperature is unbalanced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a blast furnace coal powder spray gun barrel with a pipeline blockage clearing structure, wherein a rotatable rotating cylinder and a first connecting plate are arranged on the side wall of the coal powder spray gun barrel, so that a scraper on the inner side wall of the coal powder spray gun barrel rotates along with an inner rotating ring, and coal ash and impurities on the side wall are scraped and removed, and the problems in the background technology are solved.

In order to achieve the purpose, the utility model provides the following technical scheme: a blast furnace pulverized coal injection gun barrel with a pipeline blockage clearing structure comprises a pulverized coal injection gun barrel, wherein a fixed disc is fixedly connected to the side wall of the pulverized coal injection gun barrel, a servo motor is fixedly mounted on the side wall of one side of the fixed disc, an output shaft of the servo motor penetrates through the inside of the fixed disc and extends to the side wall of the other side of the fixed disc, a rotating cylinder is connected to the inside of the fixed disc in a rotating mode, a tooth groove is formed in the rotating cylinder, a gear is mounted on the output shaft of the servo motor and is meshed with the tooth groove, the inside of the rotating cylinder is rotatably connected with the pulverized coal injection gun barrel, the side wall of the rotating cylinder is fixedly connected with one end of a first connecting plate, an outer rotating ring is fixedly connected to the other end of the first connecting plate, a second connecting plate is fixedly connected to the side wall of the inner rotating ring, an inner rotating ring is fixedly connected to the bottom end of the second connecting plate, and a scraper is fixedly connected to the side wall of the inner rotating ring, the scraper is abutted against the inner side wall of the coal injection gun barrel.

Preferably, the scraper side wall is fixedly connected with a fixing ring, and the joint of the fixing ring and the scraper is at an included angle of 90 degrees.

Preferably, a first limiting groove is formed in the fixed disc, a limiting disc is rotatably connected to the inside of the first limiting groove, and the limiting disc is fixedly connected to the side wall of the rotating cylinder.

Preferably, the side wall of the inner rotating ring is fixedly connected with a limiting block, a second limiting groove is formed in the coal injection gun barrel, and the limiting block is connected with the side wall of the second limiting groove in a sliding mode.

Preferably, the first connecting plate is L-shaped, and a reinforcing plate is fixedly connected to the joint of the first connecting plate and the side wall of the rotating cylinder.

Preferably, the side wall of the coal injection gun barrel is provided with a sliding chute, and the second connecting plate is in sliding connection with the side wall of the sliding chute.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides a blast furnace coal dust spray gun tube with a pipeline blockage clearing structure, wherein a rotary cylinder and a first connecting plate which can rotate are arranged on the side wall of the coal spray gun tube, a gear on a servo motor on a fixed disc drives a tooth socket inside the rotary cylinder to rotate the rotary cylinder, so that a scraper on the inner side wall of the coal spray gun tube rotates along with an inner rotating ring to scrape coal ash and sundries on the side wall, the coal spray gun tube is not easy to block, manual cleaning is reduced, the coal spray amount is improved, and the using effect is better.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view showing the internal structure of a fixed tray and a rotary drum according to the present invention;

FIG. 3 is a schematic view of the internal structure of the coal lance tube of the present invention;

fig. 4 is a right-side internal structural schematic view of the coal lance tube of the present invention.

Reference numbers in the figures: 1. a coal injection gun barrel; 2. fixing the disc; 3. a rotating cylinder; 4. a servo motor; 5. a first connecting plate; 6. an outer rotating ring; 7. a first limit groove; 8. a limiting disc; 9. a tooth socket; 10. a gear; 11. a fixing ring; 12. a second limit groove; 13. a limiting block; 14. a chute; 15. a second connecting plate; 16. an inner rotating ring; 17. and (4) scraping the blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a blast furnace coal powder spray gun tube with a pipeline blockage clearing structure as shown in figures 1-4, which comprises a coal spray gun tube 1, wherein a fixed disc 2 is fixedly connected to the side wall of the coal spray gun tube 1, a servo motor 4 is fixedly installed on the side wall of one side of the fixed disc 2, an output shaft of the servo motor 4 penetrates through the inside of the fixed disc 2 and extends to the side wall of the other side of the fixed disc 2, a rotating cylinder 3 is rotatably connected to the inside of the fixed disc 2, a first limiting groove 7 is formed in the fixed disc 2, a limiting disc 8 is rotatably connected to the inside of the first limiting groove 7, the limiting disc 8 is fixedly connected to the side wall of the rotating cylinder 3, so that the rotating cylinder 3 can be fixed relative to the fixed disc, and a tooth groove 9 in the rotating cylinder 3 cannot be separated from a gear 10.

The coal injection gun comprises a rotating cylinder 3, a tooth groove 9 is formed in the rotating cylinder 3, a gear 10 is installed on an output shaft of a servo motor 4, the gear 10 is meshed with the tooth groove 9 and is connected with the coal injection gun barrel 1 in a rotating mode, the side wall of the rotating cylinder 3 is fixedly connected with one end of a first connecting plate 5, the other end of the first connecting plate 5 is fixedly connected with an outer rotating ring 6, the first connecting plate 5 is L-shaped, a reinforcing plate is fixedly connected to the joint of the first connecting plate 5 and the side wall of the rotating cylinder 3, the first connecting plate 5 can be driven to rotate in order to enable the rotating cylinder 3 to rotate, meanwhile, the first connecting plate 5 cannot be bent easily due to the fixing of the reinforcing plate, a second connecting plate 15 is fixedly connected to the inner side wall of the outer rotating ring 6, and an inner rotating ring 16 is fixedly connected to the bottom end of the second connecting plate 15.

Spout 14 has been seted up to the lateral wall of coal injection gun barrel 1, second connecting plate 15 and spout 14's lateral wall looks sliding connection, in order to make second connecting plate 15 can slide in spout 14, the lateral wall rigid coupling of interior swivel ring 16 has scraper 17, scraper 17 is contradicted with coal injection gun barrel 1's inside lateral wall, scraper 17 lateral wall rigid coupling has solid fixed ring 11, gu fixed ring 11 is 90 contained angles with scraper 17's linking department, in order to make scraper 17 can keep certain toughness at coal injection gun barrel 1's inside wall, difficult skew, interior swivel ring 16's lateral wall rigid coupling has stopper 13, second spacing groove 12 has been seted up to coal injection gun barrel 1's inside, stopper 13 and second spacing groove 12's lateral wall looks sliding connection, in order to make interior swivel ring 16 can fix the inside rotation at coal injection gun barrel 1, be difficult for rocking.

The working principle of the blast furnace coal powder spray gun pipe with the pipeline blockage clearing structure provided by the utility model is as follows:

when the coal injection gun barrel 1 is used, when residual coal ash in the coal injection gun barrel 1 needs to be cleaned, the output shaft of the servo motor 4 drives the gear 10 to rotate, the gear 10 rotates on the tooth socket 9, the rotating cylinder 3 rotates in the fixed disk 2 through the tooth socket 9, the limiting disk 8 rotates in the first limiting groove 7 in the fixed disk 2, the connecting plate on the side wall of the rotating cylinder 3 rotates on the side wall of the coal injection gun barrel 1, the outer rotating ring 6 makes circumferential motion on the side wall of the coal injection gun barrel 1, the second connecting plate 15 slides in the sliding groove 14, the inner rotating ring 16 rotates in the coal injection gun barrel 1, the scraper 17 is driven to rotate on the inner side wall of the coal injection gun barrel 1, coal ash on the inner side wall of the coal injection gun barrel 1 is scraped, the scraped coal ash is blown out of the coal injection gun barrel 1 through the internal wind power of the coal injection gun barrel 1, when the second connecting plate 15 rotates to one side of the sliding groove 14, the servo motor 4 is rotated reversely, so that the second connecting plate 15 can move to the other side in the sliding groove 14, the inner rotating ring 16 is rotated reversely, the coal ash is scraped from the inner side wall of the coal injection gun barrel 1 through the scraper 17 in a repeated motion, and the cleaning treatment of the inner side wall of the coal injection gun barrel 1 is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a blast furnace coal dust gunbarrel with clear stifled structure of pipeline, includes coal powder gunbarrel (1), its characterized in that: the lateral wall rigid coupling of coal injection barrel (1) has fixed disk (2), one side lateral wall fixed mounting of fixed disk (2) has servo motor (4), the output shaft of servo motor (4) runs through in the inside of fixed disk (2) and extends to the opposite side lateral wall of fixed disk (2), the internal rotation of fixed disk (2) is connected with a rotation section of thick bamboo (3), the inside of a rotation section of thick bamboo (3) is provided with tooth's socket (9), gear (10) is installed to the output shaft of servo motor (4), gear (10) and tooth's socket (9) mesh are connected, the inside and the coal injection barrel (1) of a rotation section of thick bamboo (3) rotate and are connected, the lateral wall of a rotation section of thick bamboo (3) and the one end of first connecting plate (5) are fixed connection mutually, the other end fixedly connected with outer swivel becket (6) of first connecting plate (5), the inboard lateral wall rigid coupling of outer swivel becket (6) has second connecting plate (15), the bottom rigid coupling of second connecting plate (15) has interior rotating ring (16), the lateral wall rigid coupling of interior rotating ring (16) has scraper (17), scraper (17) contradict with the inside lateral wall of coal injection barrel (1).

2. The blast furnace coal powder spray gun tube with the pipe blockage clearing structure as claimed in claim 1, which is characterized in that: scraper (17) lateral wall rigid coupling has solid fixed ring (11), gu fixed ring (11) is 90 contained angles with the linking department of scraper (17).

3. The blast furnace coal powder spray gun tube with the pipe blockage clearing structure as claimed in claim 1, which is characterized in that: first spacing groove (7) have been seted up to the inside of fixed disk (2), the internal rotation of first spacing groove (7) is connected with spacing dish (8), spacing dish (8) rigid coupling is on the lateral wall of rotating-barrel (3).

4. The blast furnace coal powder spray gun tube with the pipe blockage clearing structure as claimed in claim 1, which is characterized in that: the lateral wall rigid coupling of interior rotating ring (16) has stopper (13), second spacing groove (12) have been seted up to the inside of coal injection gun pipe (1), stopper (13) and the lateral wall looks sliding connection of second spacing groove (12).

5. The blast furnace coal powder lance tube with the pipeline blockage clearing structure as claimed in claim 1, characterized in that: the first connecting plate (5) is L-shaped, and a reinforcing plate is fixedly connected to the joint of the first connecting plate (5) and the side wall of the rotating cylinder (3).

6. The blast furnace coal powder spray gun tube with the pipe blockage clearing structure as claimed in claim 1, which is characterized in that: the side wall of the coal injection gun pipe (1) is provided with a sliding chute (14), and the second connecting plate (15) is in sliding connection with the side wall of the sliding chute (14).