CN219187089U

CN219187089U - Screening structure and petroleum coke pre-calcination pulverizer

Info

Publication number: CN219187089U
Application number: CN202320016114.XU
Authority: CN
Inventors: 王二变; 刘保国; 张胜海; 王坤坤
Original assignee: Jiaozuo Honglin New Material Co ltd
Current assignee: Jiaozuo Honglin New Material Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-06-16
Anticipated expiration: 2033-01-04

Abstract

The utility model relates to a screening structure in the technical field of petroleum coke production equipment, which comprises a feeding pipe, wherein the feeding pipe is obliquely arranged, the lower end of the feeding pipe is provided with a feeding pipe, the upper end of the feeding pipe is provided with a discharging pipe, and a spiral feeder is arranged in the feeding pipe; a material collecting box is matched below the material conveying pipe, a material discharging hole is formed in the side wall of the material conveying pipe, which is positioned below the material conveying pipe, the material discharging hole is communicated with a material collecting box, and a material outlet I is formed in the bottom of the material collecting box; the utility model provides a rubbing crusher before petroleum coke is calcined, includes the crushing case, and the top of crushing case is equipped with the feeder hopper, and the feeder hopper cooperates with the discharging pipe of screening structure, is equipped with pair roller type crushing roller and screen cloth in the crushing case, and the screen cloth cooperation has the scraping plate. The utility model can screen the petroleum coke before and after crushing respectively, avoids the petroleum coke with small particles from being crushed again, improves the crushing efficiency, ensures the crushing effect, has reasonable integral structure and simple operation, and improves the screening effect and the working efficiency by the cooperation of the screen and the scraping plate.

Description

Screening structure and petroleum coke pre-calcination pulverizer

Technical Field

The utility model belongs to the technical field of petroleum coke production equipment, and particularly relates to a screening structure and a petroleum coke pre-calcining pulverizer.

Background

The purpose of calcining the petroleum coke is to reduce the hydrogen content of the petroleum coke re-product and improve the graphitization degree of the petroleum coke, thereby improving the high-temperature strength and heat resistance of the graphite electrode and improving the conductivity of the graphite electrode; before calcination, the petroleum coke is required to be crushed, the particles of the crushed petroleum coke are smaller, and the calcination effect is better; crushing is generally carried out by using a crusher. Patent number CN112642567A discloses a petroleum coke breaker, which comprises a housing, the connection of shell top is equipped with the feed inlet, the shell inside wall is located the feed inlet below and connects and be equipped with baffle one, keep away from baffle one side wall connection in the shell and be equipped with the hydraulic press, the shell inside wall is close to the hydraulic press and connects and be equipped with baffle two, the shell lateral wall is close to baffle two and connects and be equipped with pushing equipment, baffle two bottoms are connected and are equipped with the riser, be close to the riser in the shell and connect and be equipped with a plurality of rotation wheels, it is equipped with motor one to rotate wheel centre of a circle position connection, be equipped with crushing tooth on the riser, it is equipped with crushing tooth to rotate the connection on the wheel. The patent provides a petroleum coke crushing device which is complete in crushing, uniform in blanking and long in service life. However, in a specific use process, only the crushed petroleum coke is screened, and when the petroleum coke is added into the crusher, the particle size of the petroleum coke cannot be completely the same, and small particles are not necessary to crush, so that if the small particles are added into the crusher together, the crushing efficiency is affected, and unnecessary waste is caused. Therefore, there is a need for a screening structure and a pre-calcined petroleum coke pulverizer that address the foregoing problems.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a screening structure which comprises a feeding pipe, wherein the feeding pipe is obliquely arranged, the lower end of the feeding pipe is provided with a feeding pipe, the upper end of the feeding pipe is provided with a discharging pipe, and a spiral feeder is arranged in the feeding pipe;

the lower part of the feeding pipe is matched with a material collecting box, a discharging hole is formed in the side wall of the feeding pipe, located below, of the feeding pipe, the discharging hole is communicated with the material collecting box, and a first discharging hole is formed in the bottom of the material collecting box.

Preferably, the inclination angle θ formed between the feed pipe and the horizontal plane is greater than 30 ° and less than 75 °.

The utility model also provides a pre-calcining grinder for petroleum coke, which comprises a crushing box, wherein the top of the crushing box is provided with a feed hopper, the feed hopper is matched with the screening structure of any one of the above, and a discharge pipe of the screening structure is positioned right above the feed hopper.

Preferably, the crushing box is internally provided with a pair roller type crushing roller, the pair roller type crushing roller is positioned below the feeding hopper, an inclined screen is further arranged in the crushing box below the pair roller type crushing roller, the screen is matched with a scraping plate, bristles are fixed on the scraping plate, the bristles are in contact with the upper surface of the screen, the center of the scraping plate is fixedly provided with a rotating shaft, the rotating shaft is perpendicular to the scraping plate, one end of the rotating shaft extends out of the crushing box and then is connected with a driving motor, the driving motor is fixed on the crushing box, a second discharging hole is formed in the side wall of the crushing box corresponding to the lower end of the screen, and a third discharging hole is formed in the crushing box below the screen.

The utility model also comprises other components which can ensure that the screening structure and the pulverizer before calcining the petroleum coke can be normally used, such as a control component of a driving motor, a control component of a screw feeder, a control component of a pair of roller type crushing rollers and the like, which are all conventional technical means in the field. In addition, the devices or components not defined in the present utility model are all conventional means in the art, such as screw feeders, twin roll crushing rolls, etc., as conventional equipment in the art.

The working principle of the utility model is as follows: the method comprises the steps that petroleum coke to be crushed is added into a feeding pipe through a feeding pipe, a screw feeder is started, the petroleum coke is fed to a discharging pipe, the petroleum coke with smaller particles and without crushing in the conveying process enters a material collecting box from a discharging hole for standby, the petroleum coke with larger particles enters a material feeding hopper of the crushing box from the discharging pipe and then falls into a space between opposite roller type crushing rollers to be crushed, the crushed petroleum coke falls onto a screen in the crushing box, a driving motor drives a scraping plate to continuously rotate, the petroleum coke falling onto the screen is continuously and evenly flattened, the crushed petroleum coke particles with the size fall into the crushing box below the screen for standby, and the unqualified petroleum coke with larger particles can be put into the material feeding hopper again for crushing after sliding along the slope of the inclined screen and discharged from the second discharging hole until the size of the crushed petroleum coke meets the requirements. In the process, the scraping plate not only can play roles in spreading out petroleum coke particles and improving the screening effect of the screen, but also can clean the screen, and the condition of screen blockage is avoided.

The utility model has the beneficial effects that the method can screen the petroleum coke before and after crushing respectively, prevent the petroleum coke with small particles from being crushed again, improve the crushing efficiency, ensure the crushing effect, have reasonable integral structure and simple operation, and improve the screening effect and the working efficiency by the cooperation of the screen mesh and the scraping plate.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of a screening structure and a pulverizer prior to calcining petroleum coke according to the present utility model.

In the figure: 1. a feed pipe; 2. a feed pipe; 3. a discharge pipe; 4. a screw feeder; 5. a blanking hole; 6. a material collecting box; 7. a first discharging hole; 8. a feed hopper; 9. a crushing box; 10. a driving motor; 11. a second discharging port; 12. a screen; 13. a third discharging port; 14. a rotating shaft; 15. a scraping plate; 16. brushing; 17. a pair of roller type crushing rollers.

Detailed Description

The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the utility model are shown, and in which embodiments of the utility model are shown. All other embodiments, modifications, equivalents, improvements, etc., which are apparent to those skilled in the art without the benefit of this disclosure, are intended to be included within the scope of this utility model.

Examples

As shown in fig. 1, the utility model provides a screening structure, which comprises a feeding pipe 1, wherein the feeding pipe 1 is obliquely arranged, a feeding pipe 2 is arranged at the lower end of the feeding pipe 1, a discharging pipe 3 is arranged at the upper end of the feeding pipe 1, and a spiral feeder 4 is arranged in the feeding pipe 1;

the lower part of the feeding pipe 1 is matched with a material collecting box 6, a discharging hole 5 is formed in the side wall of the feeding pipe 1 located below, the discharging hole 5 is communicated with the material collecting box 6, and a first discharging hole 7 is formed in the bottom of the material collecting box 6.

The inclined angle theta formed between the feeding pipe 1 and the horizontal plane is larger than 30 degrees and smaller than 75 degrees, the upward feeding effect of the spiral feeder 4 can be ensured by the arrangement of the inclined angle theta, the blanking of the blanking hole 5 is not influenced, and the screening effect before petroleum coke crushing is improved.

The utility model also provides a petroleum coke pre-calcining pulverizer, which comprises a crushing box 9, wherein the crushing box is cylindrical, a feed hopper 8 is arranged at the top of the crushing box 9, the feed hopper 8 is matched with any one of the screening structures, and a discharge pipe 3 of the screening structure is positioned right above the feed hopper 8.

The crushing box 9 is internally provided with a pair roller type crushing roller 17, the pair roller type crushing roller 17 is positioned below the feeding hopper 8, an inclined screen 12 is further arranged in the crushing box 9 below the pair roller type crushing roller 17, the screen 12 is matched with a scraping plate 15, bristles 16 are fixed on the scraping plate 15, the bristles 16 are in contact with the upper surface of the screen 12, a rotating shaft 14 is fixed at the center of the scraping plate 15, the rotating shaft 14 is perpendicular to the scraping plate 15, one end of the rotating shaft 14 extends out of the crushing box 9 and then is connected with a driving motor 10, the driving motor 10 is fixed on the crushing box 9, the rotating shaft 14 drives the scraping plate to rotate on the screen, and a circular track formed by rotation of the scraping plate 15 is not larger than the area of the screen. The side wall of the crushing box 9 corresponding to the lower end of the screen 12 is provided with a second discharge port 11, and the crushing box 9 below the screen 12 is provided with a third discharge port 13.

The embodiments of the present utility model have been described above, the description is illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. Screening structure, including conveying pipe, its characterized in that: the feeding pipe is obliquely arranged, a feeding pipe is arranged at the lower end of the feeding pipe, a discharging pipe is arranged at the upper end of the feeding pipe, and a spiral feeder is arranged in the feeding pipe;

2. A screening arrangement according to claim 1, characterized in that: the inclination angle theta formed between the feeding pipe and the horizontal plane is more than 30 degrees and less than 75 degrees.

3. The utility model provides a rubbing crusher before petroleum coke calcination, includes the crushing case, the top of crushing case is equipped with feeder hopper, its characterized in that: the feed hopper is matched with the screening structure of any one of claims 1-2, and a discharge pipe of the screening structure is positioned right above the feed hopper.

4. A pre-calcined petroleum coke pulverizer as defined in claim 3, wherein: the crushing box is internally provided with a pair roller type crushing roller, the pair roller type crushing roller is positioned below the feeding hopper, an inclined screen is further arranged in the crushing box below the pair roller type crushing roller, the screen is matched with a scraping plate, bristles are fixed on the scraping plate and are in contact with the upper surface of the screen, the center of the scraping plate is fixedly provided with a rotating shaft, one end of the rotating shaft extends out of the crushing box and then is connected with a driving motor, the driving motor is fixed on the crushing box, a second discharging port is arranged on the side wall of the crushing box corresponding to the lower end of the screen, and a third discharging port is arranged on the crushing box below the screen.