CN116083101B

CN116083101B - Petroleum coking device and use method thereof

Info

Publication number: CN116083101B
Application number: CN202310375373.6A
Authority: CN
Inventors: 尚吉永; 曲春林; 张数义; 苟振清; 秦增亮
Original assignee: Wanda Group Co Ltd
Current assignee: Wanda Group Co Ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-06-20
Anticipated expiration: 2043-04-11
Also published as: CN116083101A

Abstract

The invention provides a petroleum coking device and a use method thereof, which relate to the technical field of petroleum coking and solve the problems of waste gas treatment and screening scraping during petroleum coking. The condensation silk condenses the steam in the waste gas, and the steam after the condensation forms the condensate water and gets into the bottom of collecting vessel and collect, and the condensation silk realizes waste gas and steam separation, and the filter core filters waste gas, and the water in the water spray ring is carried to the water pump with the collecting vessel, and the water spray ring forms the cascade and handles the impurity of waste gas, and waste gas when making the coking is in fully handling and discharge to the air after filtering.

Description

Petroleum coking device and use method thereof

Technical Field

The invention relates to the technical field of petroleum coking, in particular to a petroleum coking device and a using method thereof.

Background

At present, during petroleum coking, coking is carried out by means of a coking device, petroleum coke is dried by the coking device, the petroleum coke is crushed before petroleum coking, and crushed petroleum coke is dried by the oil coking device, but the petroleum coking device used at present still has the following defects:

at present, steam and dirty oil are doped in waste gas generated during petroleum coking, so that when the waste gas is filtered through the conventional filtering device, the filtering device simultaneously filters the waste gas, the steam and the dirty oil, the filtering burden of the filtering device is increased, the replacement frequency of the filtering device is increased, the steam and the dirty oil can moisten the filtering device, the filtering effect of the filtering device is reduced, and the discharge of the generated small-discharge waste gas can pollute the surrounding air;

in addition, the crushed materials during petroleum coking need to be screened independently, and the phenomenon of residence can also occur in screening and filtering, so that the screening steps of the crushed materials are complicated, and the cost and time during petroleum coking are increased;

in the petroleum coking process, petroleum cokes are adhered to the inner wall of the coke oven, and the interior of the coke oven needs to be scraped independently, so that the workload and the steps of petroleum coking are increased.

Disclosure of Invention

In view of the above, the present invention provides a petroleum coking device and a method for using the same, which solves the problems of waste gas treatment and screening and scraping during petroleum coking.

The invention provides a petroleum coking device and a using method thereof, which specifically comprise the following steps: the device comprises a support frame, wherein a group of driving components and a group of waste gas treatment components are arranged above the support frame, the waste gas treatment components consist of a collecting barrel, a sealing cover, condensation wires, a baffle, a drainage cylinder, a water pump and a filter core, the driving components consist of an electric motor and a driving shaft, a adapter seat is arranged between the electric motor and the driving shaft, a pushing roller is arranged on the outer side of the driving shaft, a movably connected coke oven is arranged above the driving components, an inner container is arranged on the inner side of the coke oven, a heating wire is arranged between the coke oven and the inner container, a group of auxiliary heating structures are arranged on the inner side of the coke oven, the auxiliary heating structures consist of a heating frame, a stirring frame, a positioning pin and a scraping rod, a positioning main body is arranged on the outer side of the coke oven, the positioning main body is connected with the coke oven in a rotating way, a group of conveying devices are arranged on the outer side of the positioning main body, the conveying devices consist of a conveying belt and a screening net is arranged on the positioning main body, a group of vibration components are arranged on the rotating shaft, and the vibration components consist of a mounting block and a vibration block together;

further, a belt wheel is arranged at the end parts of the driving shaft and the heating frame, a belt is arranged between the driving shaft and the heating frame, a rotating groove is formed in one side of the coke oven, the belt wheel arranged on the heating frame is arranged at the inner side of the rotating groove, the heating frame is in sliding connection with the belt wheel, and a locking bolt is arranged on the belt wheel arranged on the heating frame.

Further, two stirring frames are arranged on the outer side of the heating frame, an installation sleeve is arranged on the stirring frame, two positioning pins of a cylindrical stepped structure are arranged on the outer side of the stirring frame, two waist round holes are formed in the scraping rod, the positioning pins are inserted into the inner sides of the waist round holes, and a squeezing ring is arranged on the inner sides of the coke ovens.

Further, two symmetrical mounting grooves are formed in the inner side face of the positioning main body, the mounting grooves are of inclined structures, two sides of the screening net are mounted in the mounting grooves of the positioning main body, and the bottom of the screening net is provided with discharge holes.

Further, the installation piece is installed in the outside of axis of rotation, and the bottom of installation piece is equipped with the mounting groove of a T shape, and the top of vibrations piece is installed in the mounting groove of installation piece, is equipped with a locating lever in the mounting groove of installation piece, and a supporting spring is installed in the outside of locating lever, and the sliding tray of a circular arc structure has been seted up to the inboard of vibrations piece, is equipped with the arch of meshing on vibrations piece and the screening net.

Further, collecting vessel and location main part all are equipped with the connecting sleeve, and the bottom of sealed lid is equipped with the internal thread, and sealed lid passes through the internal thread to be installed in the top of collecting vessel, and a heliciform condensation silk is installed to sealed inboard, and the inboard of collecting vessel is equipped with two baffle of slope form, and the collecting vessel is equipped with a sleeve of giving vent to anger, and a drainage section of thick bamboo is installed in the telescopic outside of giving vent to anger, and a filter core is installed to the inboard of drainage section of thick bamboo, and the inboard of drainage section of thick bamboo is equipped with a holding ring, and the bottom of collecting vessel is equipped with a discharge pipe.

Further, the drainage cylinder is provided with a spray ring, spray holes distributed in an annular array are formed in the spray ring, the water pump is connected with the spray ring and the collecting barrel through water pipes, and the water pump is communicated with the spray ring and the collecting barrel.

The beneficial effects are that: 1. the invention realizes the good treatment effect of the coking waste gas and steam through the waste gas treatment component, and has the following specific beneficial effects:

in the process of petroleum coking, coking waste gas in the coke oven enters the inside of the collecting vessel through the connecting sleeve, steam in the waste gas is condensed by the condensing wire, condensed steam forms condensed water to enter the bottom of the collecting vessel to be collected, waste gas and steam are separated through the arrangement of the condensing wire, waste gas is filtered through the filter core, water in the collecting vessel is conveyed into the water spray ring by the water pump, the water spray ring forms a water curtain to treat impurities of the waste gas, so that the waste gas in coking is fully treated and filtered and then discharged into the air, and the condensed water which is conveniently collected through the discharge pipe is discharged.

2. The invention screens the petroleum coke used for coking through the screening net, and the screened petroleum coke can better carry out petroleum coking, and has the following specific beneficial effects:

the rotating force of the conveyer belt is fully utilized, the conveyer belt drives the installation block and the vibration block to rotate, the vibration block and the screening net are provided with meshed protrusions, the vibration block is matched with the protrusions to achieve the effect of vibration of the screening net during rotation, so that screened objects above the screening net can move downwards better, and the problem that the screening net is vibrated by the vibration motor is solved.

3. According to the invention, the efficiency of petroleum coking is quickened through the matching of the coke oven and the heating frame, the coke oven and the heating frame are driven simultaneously through the driving shaft, and the cost of driving the coke oven and the heating frame is saved;

in addition, the scraping rod is driven to synchronously move after the heating frame is pushed, the scraping rod is upwards extruded by the extrusion ring of the coke oven, so that the scraping rod is contacted with the inner wall of the inner container, petroleum cokes adhered to the inner wall of the inner container can be scraped when the scraping rod rotates, and the flexible movement of the scraping rod is realized by pushing the heating frame.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

The drawings described below are only for illustration of some embodiments of the invention and are not intended to limit the invention.

In the drawings:

FIG. 1 is a schematic diagram of an axial side structure of a petroleum coking unit according to an embodiment of the present invention;

FIG. 2 is a schematic view of the right-hand corner axicon of FIG. 1 in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of a cross-sectional axial side structure of a petroleum coking apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the front view of FIG. 3 in accordance with an embodiment of the present invention;

FIG. 5 is a schematic diagram of a split shaft side structure of a petroleum coking unit according to an embodiment of the present invention;

FIG. 6 is a schematic view of the bottom isometric view of FIG. 5 in accordance with an embodiment of the invention;

FIG. 7 is a schematic view of a partially cut-away axial side structure of a coke oven and a liner in accordance with an embodiment of the invention;

FIG. 8 is an enlarged schematic view of the structure of FIG. 3A in accordance with an embodiment of the present invention;

FIG. 9 is an enlarged schematic view of the structure of FIG. 4 at B in accordance with an embodiment of the invention;

fig. 10 is a schematic diagram of a semi-cut enlarged structure of the shock block at C of fig. 7 in accordance with an embodiment of the present invention.

List of reference numerals

1. A support frame; 2. a drive assembly; 201. an electric motor; 202. a drive shaft; 3. a coke oven; 301. an inner container; 4. an auxiliary heating structure; 401. a heating rack; 402. a toggle frame; 403. a positioning pin; 404. a scraper bar; 5. a positioning main body; 6. a conveying device; 601. a conveyor belt; 602. a rotating shaft; 7. screening a net; 8. a vibration assembly; 801. a mounting block; 802. a vibrating block; 9. an exhaust treatment assembly; 901. a collecting barrel; 902. sealing cover; 903. condensing the silk; 904. a baffle; 905. a drainage tube; 906. a water pump; 907. and (5) filtering the filter core.

Detailed Description

In order to make the objects, aspects and advantages of the technical solution of the present invention more clear, the technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiment of the present invention. Unless otherwise indicated, terms used herein have the meaning common in the art. Like reference numerals in the drawings denote like parts.

Examples: please refer to fig. 1 to 10:

the invention provides a petroleum coking device and a using method thereof, the petroleum coking device comprises a supporting frame 1, a group of driving components 2 and a group of waste gas treatment components 9 are arranged above the supporting frame 1, the waste gas treatment components 9 are composed of a collecting barrel 901, a sealing cover 902, a condensation wire 903, a baffle 904, a drainage barrel 905, a water pump 906 and a filter element 907, both the collecting barrel 901 and a positioning main body 5 are provided with connecting sleeves, the effect of communicating the collecting barrel 901 and the positioning main body 5 is realized through the connecting sleeves, therefore, coking waste gas in a coke oven 3 enters the inside of the collecting barrel 901 through the connecting sleeves, the bottom of the sealing cover 902 is provided with internal threads, the sealing cover 902 is arranged above the collecting barrel 901 through the internal threads, a spiral condensation wire 903 is arranged at the inner side of the sealing cover 902, the condensation wire 903 condenses steam in the waste gas, the condensed steam forms condensed water to enter the bottom of the collecting barrel 901 for collection, the effect of separating waste gas and steam is realized through the arrangement of the condensation wires 903, two inclined baffles 904 are arranged on the inner side of the collecting barrel 901, condensed water is blocked through the baffles 904, thereby the condensed water is prevented from being conveniently discharged along with the waste gas outwards, the collecting barrel 901 is provided with an air outlet sleeve, a drainage barrel 905 is arranged on the outer side of the air outlet sleeve, a filter core 907 is arranged on the inner side of the drainage barrel 905, the waste gas is filtered through the filter core 907, a positioning ring is arranged on the inner side of the drainage barrel 905, the installation position of the filter core 907 is positioned through the positioning ring, a discharge pipe is arranged at the bottom of the collecting barrel 901, the condensed water which is conveniently collected through the discharge pipe is discharged, the drainage barrel 905 is provided with a spray ring, the spray ring is provided with spray holes distributed in an annular array shape, the water pump 906 is connected with the spray ring and the collecting barrel 901 through water pipes, the water pump 906 is communicated with the water spraying ring and the collecting barrel 901, water in the collecting barrel 901 is conveyed into the water spraying ring through the water pump 906, and the water spraying ring forms a water curtain to treat impurities of waste gas, so that the waste gas generated during coking is fully treated and filtered and then discharged into the air;

the driving assembly 2 consists of an electric motor 201 and a driving shaft 202, an adapter is arranged between the electric motor 201 and the driving shaft 202, the electric motor 201 drives the driving shaft 202 to rotate under the cooperation of the adapter, a pushing roller is arranged on the outer side of the driving shaft 202, the coke oven 3 is pushed to rotate by the pushing roller, a movably connected coke oven 3 is arranged above the driving assembly 2, an inner container 301 is arranged on the inner side of the coke oven 3, a heating wire is arranged between the coke oven 3 and the inner container 301, and the heating wire is used for heating the interior of the coke oven 3 to realize the effect of petroleum coking;

a group of auxiliary heating structures 4 are arranged on the inner side of the coke oven 3, the auxiliary heating structures 4 are composed of a heating frame 401, a stirring frame 402, a locating pin 403 and a scraping rod 404, a belt wheel is arranged at the end parts of a driving shaft 202 and the heating frame 401, a belt is arranged between the two belt wheels, therefore, the driving shaft 202 simultaneously drives the heating frame 401 to rotate under the connection of the belt, a rotating groove is arranged on one side of the coke oven 3, the belt wheel arranged on the heating frame 401 is arranged on the inner side of the rotating groove, the positioning of the belt wheel is realized through the rotating groove, the heating frame 401 and the belt wheel are in sliding connection, the heating frame 401 can be subjected to forced displacement, the belt wheel arranged on the heating frame 401 is provided with a locking bolt, the effect of firm connection between the belt wheel and the heating frame 401 is realized through the locking bolt, the two stirring frames 402 are arranged on the outer side of the heating frame 401, the stirring frame 402 is provided with a mounting sleeve, the stirring frame 402 is conveniently connected with the heating frame 401 through the mounting sleeve, the heating rack 401 drives the stirring rack 402 to rotate, the stirring rack 402 is matched with the heating rack 401 to accelerate the coking efficiency of the coke oven 3, the outer side surface of the stirring rack 402 is provided with two positioning pins 403 with cylindrical stepped structures, the scraping rod 404 is provided with two waist round holes, the positioning pins 403 are inserted into the inner sides of the waist round holes, therefore, the effect of mounting the scraping rod 404 is realized under the matching of the waist round holes and the positioning pins 403, the scraping rod 404 is driven to move up and down when the heating rack 401 rotates, in addition, the scraping rod 404 can be driven to move up and down under the matching of the waist round holes, the inner side of the coke oven 3 is provided with a squeezing ring, the scraping rod 404 is driven to move synchronously after the heating rack 401 is pushed, the squeezing ring of the coke oven 3 extrudes the scraping rod 404 upwards to enable the scraping rod 404 to be contacted with the inner wall of the inner container 301, petroleum coked substances adhered on the inner wall of the inner container 301 can be scraped when the scraping rod 404 rotates, flexible movement of the scraper bar 404 is achieved by pushing the heating frame 401,

the outside of the coke oven 3 is provided with a positioning main body 5, the positioning main body 5 is communicated with the coke oven 3, the positioning main body 5 is rotationally connected with the coke oven 3, the outside position of the positioning main body 5 is provided with a group of conveying devices 6, each conveying device 6 consists of a conveying belt 601 and a rotating shaft 602, the positioning main body 5 is provided with a screening net 7, the inner side surface of the positioning main body 5 is provided with two symmetrical mounting grooves, each mounting groove is of an inclined structure, two sides of the screening net 7 are arranged in the mounting grooves of the positioning main body 5, the mounting positions of the screening net 7 are positioned through the mounting grooves, the screening net 7 is of an inclined structure after the screening net 7 is arranged, the bottom position of the screening net 7 is provided with a discharge hole, the screened coking materials are convenient to collect by matching with the discharge hole, the rotating shaft 602 is provided with a group of vibration components 8, the vibration component 8 consists of a mounting block 801 and a vibration block 802, wherein the mounting block 801 is mounted on the outer side of the rotating shaft 602, the mounting block 801 is driven to rotate when the rotating shaft 602 rotates, a T-shaped mounting groove is formed in the bottom of the mounting block 801, the upper part of the vibration block 802 is mounted in the mounting groove of the mounting block 801, the vibration block 802 is positioned through the mounting groove, meanwhile, the vibration block 802 moves up and down under the cooperation of the mounting groove, a positioning rod is arranged in the mounting groove of the mounting block 801, a supporting spring is mounted on the outer side of the positioning rod, a sliding groove with an arc structure is formed in the inner side of the vibration block 802, the vibration block 802 is elastically supported downwards through the supporting spring, the vibration block 802 and the screening screen 7 are provided with meshed protrusions, therefore, the vibration block 802 is matched with the protrusions to realize the vibration effect of the screening screen 7 during rotation, thereby make the better downwardly moving of screening thing of screening net 7 top, through setting up the turning force make full use of conveyer belt 601 of installation piece 801 and vibrations piece 802, saved screening net 7 and set up the problem that vibrations motor shakes simultaneously.

Specific use and action of the embodiment:

when the invention is used, firstly, the electric motor 201 and the driving shaft 202 are arranged above the supporting frame 1 through the conversion seat, the coke oven 3 is arranged above the rollers arranged on the driving shaft 202, then the collecting barrel 901 is arranged above the supporting frame 1, and after the collecting barrel 901 is arranged, the sealing cover 902, the condensation wires 903, the baffle 904, the drainage barrel 905, the water pump 906 and the filter core 907 are arranged at the same time;

the invention is connected with a power supply, petroleum coke to be coked is conveyed into the positioning main body 5 through the conveying belt 601, the positioning main body 5 conveys the coked petroleum coke into the coke oven 3, the coke oven 3 and the heating frame 401 are driven by the driving shaft 202 to rotate, at the moment, the heating wires in the coke oven 3 are matched with the heating frame 401 to carry out petroleum coking, the screening net 7 screens coking materials conveyed by the conveying belt 601, screened coking materials are matched with the discharge holes to be collected, when the conveying belt 601 rotates, the rotating shaft 602 drives the mounting block 801 and the vibration block 802 to rotate, and the vibration block 802 is matched with the protrusions to realize the vibration effect of the screening net 7 during rotation, so that screened objects above the screening net 7 can move downwards better, and the rotating force of the conveying belt 601 is fully utilized through the arrangement of the mounting block 801 and the vibration block 802;

in the petroleum coking process, coking waste gas in the coke oven 3 enters the inside of the collecting barrel 901 through the connecting sleeve, steam in the waste gas is condensed by the condensing wires 903, condensed steam forms condensed water to enter the bottom of the collecting barrel 901 for collecting, waste gas and steam are separated through the arrangement of the condensing wires 903, the waste gas is filtered through the filter element 907, water in the collecting barrel 901 is conveyed into the water spraying ring by the water pump 906, impurities in the waste gas are treated through the water spraying ring, so that the waste gas in coking is discharged into the air after being fully treated and filtered, and the condensed water which is conveniently collected through the discharge pipe is discharged;

when scraping the inner wall of the inner container 301, the locking bolt of the heating frame 401 is loosened, then the heating frame 401 is pushed inwards, the scraping rod 404 is driven to move synchronously after the heating frame 401 is pushed, the scraping rod 404 is pressed upwards by the pressing ring of the coke oven 3, the scraping rod 404 is contacted with the inner wall of the inner container 301, petroleum cokes adhered to the inner wall of the inner container 301 are scraped when the scraping rod 404 rotates, and flexible movement of the scraping rod 404 is realized by pushing the heating frame 401.

Claims

1. A petroleum coking device is characterized by comprising a supporting frame (1), a group of driving components (2) and a group of waste gas treatment components (9) are installed above the supporting frame (1), waste gas treatment components (9) are composed of a collecting barrel (901), a sealing cover (902), condensation wires (903), a baffle (904), a drainage barrel (905), a water pump (906) and a filter core (907), the collecting barrel (901) and a positioning main body (5) are both provided with connecting sleeves, internal threads are arranged at the bottom of the sealing cover (902), the sealing cover (902) is installed above the collecting barrel (901) through the internal threads, a spiral condensation wire (903) is installed at the inner side of the sealing cover (902), two inclined baffle plates (904) are arranged at the inner side of the collecting barrel (901), an air outlet sleeve is arranged at the outer side of the air outlet sleeve, a drainage barrel (905) is provided with a filter core (907), a positioning ring is arranged at the inner side of the drainage barrel (905), a drainage barrel (901) is provided with a drainage pipe at the bottom of the collecting barrel (905), a water spray ring (905) is arranged at the bottom of the drainage barrel, a water spray ring (901) is arranged between the water spray ring (905) and the water spray ring (906) is arranged, and the water spray ring (906) is arranged between the water spray ring (906) and the water spray ring (906) is arranged in an array The collecting barrels (901) are communicated with each other;

the driving assembly (2) consists of an electric motor (201) and a driving shaft (202), a adapter seat is arranged between the electric motor (201) and the driving shaft (202), a pushing roller is arranged at the outer side of the driving shaft (202), a coke oven (3) which is movably connected is arranged above the driving assembly (2), an inner container (301) is arranged at the inner side of the coke oven (3), a heating wire is arranged between the coke oven (3) and the inner container (301), a group of auxiliary heating structures (4) are arranged at the inner side of the coke oven (3), the auxiliary heating structures (4) consist of a heating frame (401), a stirring frame (402), a locating pin (403) and a scraping rod (404), a belt pulley is arranged at the end part of the driving shaft (202) and the end part of the heating frame (401), a belt is arranged between the two belt pulleys, a rotating groove is arranged at one side of the coke oven (3), the belt pulley arranged at the inner side of the rotating groove, a locking bolt is connected between the heating frame (401) and the belt pulley arranged at the inner side of the rotating groove in a sliding way, a locking bolt is arranged between the heating frame (401), a belt pulley arranged at the inner side of the heating frame (401), a locking sleeve is arranged at the outer side of the heating frame (401), two round pin (402) is arranged at the outer side of the stirring frame (402) and two round pin (402) and provided with two round pin holes (404) arranged at the outer side of the stirring frame (402), the locating pin (403) is inserted into the inner side of the kidney-shaped hole, and the inner side of the coke oven (3) is provided with a squeezing ring;

a positioning main body (5) is arranged on the outer side of the coke oven (3), the positioning main body (5) is communicated with the coke oven (3), the positioning main body (5) is rotationally connected with the coke oven (3), a group of conveying devices (6) are arranged at the outer side of the positioning main body (5), the conveying devices (6) are composed of a conveying belt (601) and a rotating shaft (602), two symmetrical mounting grooves are formed in the inner side surface of the positioning main body (5) of a screening net (7), the mounting grooves are of an inclined structure, two sides of the screening net (7) are arranged in the mounting grooves of the positioning main body (5), the positioning main body (5) is provided with a discharge hole at the bottom position of the screening net (7), a group of vibration assemblies (8) are arranged on the rotating shaft (602), the vibration assemblies (8) are composed of mounting blocks (801) and vibration blocks (802) together, the mounting blocks (801) are arranged on the outer side of the rotating shaft (602), the bottom of the mounting blocks (801) is provided with a T-shaped mounting groove, the upper side of each vibration block (802) is arranged in the mounting groove of the mounting block (801), the mounting block (801) is provided with a circular arc-shaped mounting groove, the inner side of the vibration rod (802) is arranged in the mounting groove of the vibration rod (802), the vibration block (802) and the screening net (7) are provided with meshed bulges.

2. The method for using a petroleum coking unit according to claim 1, wherein:

(1) Firstly, an electric motor (201) and a driving shaft (202) are arranged above a supporting frame (1) through a conversion seat, a coke oven (3) is arranged above a roller on which the driving shaft (202) is arranged, then a collecting barrel (901) is arranged above the supporting frame (1), and after the collecting barrel (901) is arranged, the installation of a sealing cover (902), a condensation wire (903), a baffle (904), a drainage barrel (905), a water pump (906) and a filter core (907) is completed at the same time;

(2) Connecting a coking device with a power supply, conveying petroleum coke to be coked into a positioning main body (5) through a conveying belt (601), conveying the coked petroleum coke into a coke oven (3) through the positioning main body (5), driving the coke oven (3) and a heating frame (401) to rotate under the driving of a driving shaft (202), at the moment, matching heating wires in the coke oven (3) with the heating frame (401) to conduct petroleum coking, screening coking materials conveyed by a conveying belt (601) through a screening net (7), collecting screened coking materials through matching discharge holes, driving a mounting block (801) and a vibrating block (802) to rotate when the conveying belt (601) rotates, and matching protrusions to achieve the vibrating effect of the screening net (7) when the vibrating block (802) rotates, so that screened materials above the screening net (7) can move downwards better, and the rotating force of the conveying belt (601) is fully utilized through the arrangement of the mounting block (801) and the vibrating block (802);

(3) In the petroleum coking process, coking waste gas in a coke oven (3) enters the inside of a collecting barrel (901) through a connecting sleeve, steam in the waste gas is condensed by a condensing wire (903), condensed steam forms condensed water to enter the bottom of the collecting barrel (901) for collecting, waste gas and steam are separated through the arrangement of the condensing wire (903), waste gas is filtered through a filter element (907), water in the collecting barrel (901) is conveyed into a water spraying ring by a water pump (906), impurities in the waste gas are treated through a water spraying ring forming a water curtain, so that the waste gas in coking is fully treated and discharged into the air after being filtered, and the collected condensed water is discharged by a discharge pipe;

(4) When scraping the inner wall of the inner container (301), the locking bolt of the heating frame (401) is loosened, then the heating frame (401) is pushed inwards, the scraping rod (404) is driven to synchronously move after the heating frame (401) is pushed, the scraping rod (404) is upwards extruded by the extrusion ring of the coke oven (3), the scraping rod (404) is contacted with the inner wall of the inner container (301), and petroleum coker adhered to the inner wall of the inner container (301) can be scraped when the scraping rod (404) rotates.