Conveying line dust blowing and impurity removing structure for waste steel treatment

Abstract

The utility model discloses a conveying line dust blowing and impurity removing structure for waste steel treatment, which belongs to the technical field of waste steel treatment and comprises a support frame, a conveying groove is embedded in the support frame, a cross frame is fixedly mounted on one side above the support frame, and a dust blowing mechanism capable of blowing abrasive materials to the surface of a waste steel plate from four directions is arranged in the conveying groove. External air is compressed into high-pressure air through the dust blowing mechanism and the air compressor, the high-pressure air is filled into the grinding material groove, silicon carbide grinding materials in the grinding material groove are sprayed on the upper side, the lower side, the left side and the right side of a waste steel plate through the spray head A and the spray head B along with high-pressure air flow, the lead screw sliding rail drives the spray head A to reciprocate, and the servo electric cylinder C drives the spray head B to reciprocate. Abrasive materials are evenly blown to the surfaces of the waste steel plates, the abrasive materials rub with the waste steel plates under the action of high-pressure airflow, rust and dust on the surfaces of the waste steel plates are impacted to fall off, and the cleaning effect is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of scrap steel processing, in particular to a dust blowing and impurity removing structure for a conveying line used for scrap steel processing. Background Art

[0002] Scrap steel can be recycled and turned into other products. Generally, there is a lot of dust, rust and other impurities on the surface of scrap steel. During the processing of scrap steel, the impurities on the surface of the scrap steel need to be cleaned. Therefore, a de-impurity structure is needed for the conveyor line for scrap steel processing.

[0003] Among them, after searching, it was found that there is an application number CN202221432099.9, which discloses a pretreatment device for scrap steel for steelmaking, including a crusher, a cleaning tank and a dryer. After the scrap steel passes through the crusher, the cleaning tank and the dryer in sequence, various impurities and oil stains in the scrap steel are completely removed, and the moisture is dried. The treatment effect is good, and the quality of subsequent steel smelting can be guaranteed. The entire operation process does not require manual participation and has high work efficiency. The utility model has the advantages of thorough impurity removal, high work efficiency and good treatment effect.

[0004] However, after research, it was found that: the device cleans the scrap steel through a cleaning tank. During the cleaning process, there is no grinding structure that is in direct contact with the scrap steel, so some impurities adhering to the surface of the scrap steel cannot be completely cleaned, and the cleaning liquid cannot be recycled indefinitely, and its use is not energy-efficient. Moreover, after cleaning with the cleaning liquid, it needs to be dried in a dryer, which makes the processing procedure cumbersome and inconvenient. Therefore, a new device is provided to solve this problem. Utility Model Content

[0005] The purpose of the utility model is to provide a dust blowing and impurity removing structure for a conveyor line for scrap steel processing in order to solve the above-mentioned problems of insufficient cleaning effect and insufficient energy saving.

[0006] The technical solution adopted by the utility model is as follows: a dust blowing and impurity removal structure for a conveyor line for scrap steel processing, comprising a support frame, a conveying trough is embedded in the support frame, and a horizontal frame is fixedly installed on one side above the support frame;

[0007] A dust blowing mechanism is arranged inside the conveying trough and can spray abrasives toward the surface of the scrap steel plate from four directions.

[0008] Wherein, the dust blowing mechanism includes a screw slide rail, a connecting frame A, a nozzle A, a connecting frame B, a servo electric cylinder C, a nozzle B, an abrasive trough and an air compressor. The screw slide rails are embedded and installed under the cross frame and the supporting frame, and the two screw slide rails are symmetrically arranged. The connecting frame A is fixedly installed on the other side of the matching slider of the screw slide rail. The nozzle A is installed through the middle of the connecting frame A, and the outlet of the nozzle A extends to the inside of the conveying trough. The connecting frames B are symmetrically installed on both sides of the supporting frame through the servo electric cylinder C. The nozzle B is installed through the middle of the connecting frame B, and the outlet of the nozzle B extends to the inside of the conveying trough through the through groove. The abrasive trough is embedded and installed under the cross frame. The air compressor is fixedly installed on the other side under the cross frame, and the air compressor is connected to the abrasive trough pipeline. The abrasive trough is connected to the nozzle A and the nozzle B through the extension The conveying trough is connected with a shrinking metal tube pipeline, a limit plate A is installed on one side of the interior of the conveying trough through a servo electric cylinder A, and conveying rollers A are equidistantly embedded and rotatably connected at the lower surface of one side of the conveying trough and below the limit plate A, and the number of conveying rollers A is at least ten pairs, and adjacent conveying rollers A are connected by chain transmission, and a limit plate B is installed on the other side of the interior of the conveying trough through a servo electric cylinder B, and conveying rollers B are equidistantly embedded and rotatably connected at the lower surface of the other side of the conveying trough and below the limit plate B, and the number of conveying rollers B is at least ten pairs, and adjacent conveying rollers B are connected by chain transmission, and stepper motors are installed on one side of the limit plate A, one side of the limit plate B and both sides of the interior of the conveying trough, and the output shaft of the stepper motor is connected to the corresponding conveying roller A or conveying roller B through a coupling, and a plurality of punching holes are provided on the surface of the conveying roller B.

[0009] Among them, an exhaust fan is fixedly installed on the top of the cross frame, a connecting groove and an abrasive recovery groove are fixedly installed on the top of the cross frame, and the outlet of the abrasive recovery groove extends to the inside of the abrasive groove, and the two sides of the connecting groove are respectively connected to the exhaust fan inlet and the abrasive recovery groove through connecting pipe pipelines, an impurity receiving groove is slidably connected inside the connecting groove, and a sealing rubber ring is bonded to the contact area between the impurity receiving groove and the connecting groove, and openings are provided on both sides of the impurity receiving groove corresponding to the connecting pipe, and a filter A is embedded and installed at the opening of the impurity receiving groove close to the exhaust fan side, and a filter B is embedded and installed at one side of the abrasive recovery groove corresponding to the connecting pipe, an electric valve is installed at the outlet of the abrasive recovery groove, and the upper part of the conveying groove Dust collector heads A are embedded and installed at the lower two sides corresponding to the nozzle A, and a through groove is provided in the middle of the dust collector head A, and telescopic protective covers A are bonded on both sides of the nozzle A, and the other sides of the two telescopic protective covers A are respectively bonded to the two sides of the through groove, and the dust collector head A is connected to the abrasive recovery trough pipe, and dust collector heads B are embedded and installed at the two sides corresponding to the nozzle B in the conveying trough, and a through opening is provided in the middle of the dust collector head B, and telescopic protective covers B are bonded on both sides of the dust collector head B, and the other sides of the two telescopic protective covers B are respectively bonded to the two sides of the through opening, and cavities are embedded in the limit plate B and below the conveying trough corresponding to the conveying roller B, and part of the conveying roller B extends into the cavity, and the cavity is connected to the abrasive recovery trough pipe.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0011] 1. In the utility model, through the dust blowing mechanism, the air compressor compresses the external air into high-pressure gas and fills it into the abrasive tank. The silicon carbide abrasive in the abrasive tank is sprayed on the upper, lower, left and right sides of the scrap steel plate through the nozzle A and the nozzle B along with the high-pressure airflow. The screw slide rail drives the nozzle A to move back and forth, and the servo electric cylinder C drives the nozzle B to move back and forth, and the abrasive is evenly sprayed on the surface of the scrap steel plate. Under the action of the high-pressure airflow, the abrasive rubs against the scrap steel plate, and the rust and dust on the surface of the scrap steel plate are impacted and fall off, and the cleaning effect is better.

[0012] 2. In the utility model, the abrasive will not be contaminated by impurities such as dust and rust on the surface of the scrap steel plate, and the exhaust fan will suck out the dust, rust and abrasive inside the conveying trough from the punching holes on the surface of the dust suction head A, the dust suction head B and the conveying roller B, and then separate the abrasive from the dust and rust through the filter screen B, so that the abrasive can be recycled infinitely and is more energy-efficient.

[0013] 3. In the utility model, during the processing, the scrap steel plate is always kept in a dry state, and there is no need for drying treatment. The conveying roller A and the conveying roller B can convey scrap steel plates of different thicknesses, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall side section structure of the utility model;

[0016] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0017] Figure 4 For the utility model Figure 2 A schematic diagram of the enlarged structure at B;

[0018] Figure 5 It is a schematic diagram of the partial front section structure of the conveying trough in the utility model.

[0019] Markings in the figure: 1. Support frame; 101. Conveying trough; 102. Limiting plate A; 1021. Servo electric cylinder A; 103. Conveying roller A; 1031. Stepping motor; 104. Limiting plate B; 1041. Servo electric cylinder B; 1042. Cavity; 1043. Conveying roller B; 105. Cross frame; 2. Screw guide rail; 201. Connecting frame A; 2011. Nozzle A; 202. Connecting frame B; 2021. Servo electric cylinder C; 203. Nozzle B; 3. Exhaust fan; 301. Connecting trough; 3011. Impurity receiving trough; 302. Abrasive recovery trough; 3021. Electric valve; 303. Abrasive trough; 3031. Air compressor; 304. Dust collector A; 305. Dust collector B. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the utility model:

[0022] Reference Figure 1-5 , a dust blowing and impurity removal structure for a conveyor line for scrap steel processing, comprising a support frame 1, a conveying trough 101 is embedded in the support frame 1, and a horizontal frame 105 is fixedly installed on one side above the support frame 1;

[0023] A dust blowing mechanism is provided inside the conveying trough 101 for blowing abrasive toward the surface of the scrap steel plate from four directions.

[0024] Reference Figure 1 , 2, 3, 5, in this embodiment, the dust blowing mechanism includes a screw guide rail 2, a connecting frame A201, a nozzle A2011, a connecting frame B202, a servo electric cylinder C2021, a nozzle B203, an abrasive trough 303 and an air compressor 3031, and screw guide rails 2 are embedded and installed under the cross frame 105 and under the support frame 1, and the two screw guide rails 2 are symmetrically arranged, and a connecting frame A201 is fixedly installed on the other side of the matching slider of the screw guide rail 2, and a nozzle A2011 is installed through the middle of the connecting frame A201, and the outlet of the nozzle A2011 extends to the output Inside the delivery trough 101, connecting frames B202 are symmetrically installed on both sides of the support frame 1 through the servo electric cylinder C2021, a nozzle B203 is installed through the middle of the connecting frame B202, and the outlet of the nozzle B203 extends to the inside of the delivery trough 101 through the through slot, an abrasive trough 303 is embedded under the cross frame 105, an air compressor 3031 is fixedly installed on the other side under the cross frame 105, and the air compressor 3031 is connected to the abrasive trough 303 pipeline, and the abrasive trough 303 is connected to the nozzle A2011 and the nozzle B203 through a telescopic metal pipe pipeline;

[0025] When the starting end of the scrap steel plate moves to the nozzle A2011 and the nozzle B203, the movement of the scrap steel plate is stopped, and the air compressor 3031 works to compress the external air into high-pressure gas and fill it into the abrasive tank 303. The silicon carbide abrasive in the abrasive tank 303 is sprayed on the upper, lower, left and right sides of the scrap steel plate through the nozzle A2011 and the nozzle B203 along with the high-pressure airflow. The screw slide rail 2 drives the nozzle A2011 to move back and forth, and the servo electric cylinder C2021 drives the nozzle B203 to move back and forth, and the abrasive is evenly sprayed on the surface of the scrap steel plate. The abrasive impacts and removes the rust and dust on the surface of the scrap steel plate, achieving the purpose of blowing dust and cleaning the surface of the scrap steel plate. Then, the scrap steel plate continues to be moved for a distance, and the dust is blown off on the other section of the surface of the scrap steel plate, and this process is repeated until the entire surface of the scrap steel plate is cleaned.

[0026] Reference Figure 1 , 2, 3, 5, in this embodiment, a limit plate A102 is installed on one side of the conveying trough 101 through a servo electric cylinder A1021, and conveying rollers A103 are equidistantly embedded and rotatably connected at the lower surface of one side of the conveying trough 101 and below the limit plate A102, and the number of conveying rollers A103 is at least ten pairs, and adjacent conveying rollers A103 are connected through chain transmission, and a limit plate B104 is installed on the other side of the conveying trough 101 through a servo electric cylinder B1041. 1 and below the limit plate B104 are equidistantly embedded with conveying rollers B1043 for rotation connection, and the number of conveying rollers B1043 is at least ten pairs, and adjacent conveying rollers B1043 are connected by chain transmission, and stepping motors 1031 are installed on one side of the limit plate A102, one side of the limit plate B104 and both sides of the conveying trough 101, and the output shaft of the stepping motor 1031 is connected to the corresponding conveying roller A103 or conveying roller B1043 through a coupling;

[0027] According to the thickness of the scrap steel plate, the telescopic length of the servo electric cylinder A1021 and the servo electric cylinder B1041 are adjusted, and then the positions of the limit plates A102 and B104 are adjusted, so that the distance between the conveying roller A103 under the limit plate A102 and the conveying roller A103 on the bottom plane of the conveying trough 101 and the distance between the conveying roller B1043 under the limit plate B104 and the conveying roller B1043 on the bottom plane of the conveying trough 101 are both consistent with the scrap steel plate. The staff pushes one end of the scrap steel plate into between the conveying rollers A103 on the entrance side of the conveying trough 101, and the stepper motor 1031 drives the conveying rollers A103 and B1043 to rotate simultaneously, clamping the scrap steel plate and moving slowly in the conveying trough 101.

[0028] Reference Figure 1-5 In this embodiment, a plurality of punching holes are arranged on the surface of the conveying roller B1043, an exhaust fan 3 is fixedly installed above the horizontal frame 105, a connecting groove 301 and an abrasive recovery groove 302 are fixedly installed above the horizontal frame 105, and the outlet of the abrasive recovery groove 302 extends to the inside of the abrasive groove 303, and the two sides of the connecting groove 301 are respectively connected to the inlet of the exhaust fan 3 and the abrasive recovery groove 302 through connecting pipes, an impurity receiving groove 3011 is slidably connected inside the connecting groove 301, and a sealing rubber ring is bonded to the contact area between the impurity receiving groove 3011 and the connecting groove 301, and openings are arranged on both sides of the impurity receiving groove 3011 corresponding to the connecting pipe, and a filter A is embedded and installed at the opening of the impurity receiving groove 3011 close to the exhaust fan 3, and a filter B is embedded and installed at the side of the abrasive recovery groove 302 corresponding to the connecting pipe, and an electric valve 3021 is installed at the outlet of the abrasive recovery groove 302;

[0029] A dust collector A304 is embedded and installed at the upper and lower sides of the conveying trough 101 corresponding to the nozzle A2011, and a through groove is provided in the middle of the dust collector A304, and telescopic protective covers A are bonded on both sides of the nozzle A2011, and the other sides of the two telescopic protective covers A are respectively bonded to the two sides of the through groove, and the dust collector A304 is connected to the abrasive recovery trough 302 pipeline, dust collector B305 is embedded and installed at the two sides of the conveying trough 101 corresponding to the nozzle B203, and a through opening is provided in the middle of the dust collector B305, and telescopic protective covers B are bonded on both sides of the dust collector B305, and the other sides of the two telescopic protective covers B are respectively bonded to the two sides of the through opening, and a cavity 1042 is embedded and provided in the limiting plate B104 and at the bottom of the conveying trough 101 corresponding to the conveying roller B1043, and the conveying roller B1043 partially extends into the cavity 1042, and the cavity 1042 is connected to the abrasive recovery trough 302 pipeline;

[0030] The exhaust fan 3 works to suck out the air inside the impurity receiving groove 3011, the abrasive recovery groove 302, the entrance of the dust head A304, the entrance of the dust head B305 and the cavity 1042, making it in a negative pressure state, and simultaneously sucking the rust, dust and silicon carbide abrasive inside the conveying groove 101 from the entrance of the dust head A304, the dust head B305 and the punching holes on the surface of the conveying roller B1043 into the abrasive recovery groove 302, and the filter screen B on one side of the abrasive recovery groove 302 filters the inhaled matter, so that The larger silicon carbide abrasive is intercepted by the filter B and retained in the abrasive recovery tank 302, while the smaller rust powder and dust pass through the filter holes of the filter B and enter the impurity receiving tank 3011, and are intercepted by the filter A and retained in the impurity receiving tank 3011. After a period of time, the staff pulls out the impurity receiving tank 3011 to clean the impurities collected inside it, and the electric valve 3021 works to guide the abrasive recovered in the abrasive recovery tank 302 into the abrasive tank 303 for recycling.

[0031] Reference Figure 1-5 In this embodiment, the servo electric cylinder A1021, the stepper motor 1031, the servo electric cylinder B1041, the screw guide rail 2, the servo electric cylinder C2021, the exhaust fan 3, the electric valve 3021, and the air compressor 3031 are all electrically connected to the external power supply through the switch panel.

[0032] Working principle: First, adjust the telescopic length of the servo electric cylinder A1021 and the servo electric cylinder B1041 according to the thickness of the scrap steel plate, and then adjust the position of the limit plate A102 and the limit plate B104, so that the distance between the conveying roller A103 under the limit plate A102 and the conveying roller A103 on the bottom plane of the conveying trough 101 and the distance between the conveying roller B1043 under the limit plate B104 and the conveying roller B1043 on the bottom plane of the conveying trough 101 are consistent with the scrap steel plate. Then the staff pushes one end of the scrap steel plate between the conveying rollers A103 on the entrance side of the conveying trough 101, and the stepper motor 1031 drives the conveying rollers A103 and B1043 to rotate at the same time, clamping the scrap steel plate. The steel plate moves slowly in the conveying trough 101. Then, when the starting end of the scrap steel plate moves to the nozzle A2011 and the nozzle B203, the stepper motor 1031 stops working, causing the scrap steel plate to stop moving. The air compressor 3031 works to compress the external air into high-pressure gas and fill it into the abrasive trough 303. The silicon carbide abrasive in the abrasive trough 303 is sprayed on the upper, lower, left and right sides of the scrap steel plate through the nozzle A2011 and the nozzle B203 along with the high-pressure airflow. The screw slide rail 2 drives the nozzle A2011 to move back and forth, and the servo electric cylinder C2021 drives the nozzle B203 to move back and forth, evenly spraying the abrasive on the surface of the scrap steel plate. The abrasive impacts and removes the rust and dust on the surface of the scrap steel plate, realizing dust blowing. The purpose is to clean the surface of the scrap steel plate. After the scrap steel plate surfaces corresponding to the nozzles A2011 and B203 are sprayed with abrasives, the air compressor 3031 stops working and the exhaust fan 3 starts working to suck out the air inside the impurity receiving tank 3011, the abrasive recovery tank 302, the entrance of the dust collector A304, the entrance of the dust collector B305 and the cavity 1042, making it in a negative pressure state, and the rust, dust and silicon carbide abrasives inside the conveying tank 101 are simultaneously sucked into the abrasive recovery tank 302 from the entrance of the dust collector A304, the dust collector B305 and the punching holes on the surface of the conveying roller B1043. The filter screen B on one side of the abrasive recovery tank 302 filters the inhaled matter, so that The larger silicon carbide abrasive is intercepted by the filter B and retained in the abrasive recovery tank 302, while the smaller rust powder and dust pass through the filter holes of the filter B and enter the impurity receiving tank 3011, and are intercepted by the filter A and retained in the impurity receiving tank 3011. Then the stepper motor 1031 continues to work, continues to move the scrap steel plate for a distance, and blows dust off the next section of the scrap steel plate surface, and repeats this process until the entire scrap steel plate surface is cleaned. Finally, the staff pulls out the impurity receiving tank 3011, cleans the impurities collected inside it, and the electric valve 3021 works to guide the abrasive recovered in the abrasive recovery tank 302 into the abrasive tank 303 for recycling.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust blowing and impurity removal structure for a conveyor line for scrap steel processing, comprising a support frame (1), characterized in that: A conveying trough (101) is embedded in the support frame (1), and a horizontal frame (105) is fixedly installed on one side above the support frame (1); The conveying trough (101) is provided with a dust blowing mechanism capable of blowing abrasives toward the surface of the scrap steel plate from four directions; The dust blowing mechanism comprises a screw guide rail (2), a connecting frame A (201), a nozzle A (2011), a connecting frame B (202), a servo electric cylinder C (2021), a nozzle B (203), an abrasive tank (303) and an air compressor (3031); A screw guide rail (2) is embedded and installed under the cross frame (105) and under the support frame (1), and the two screw guide rails (2) are symmetrically arranged. A connecting frame A (201) is fixedly installed on the other side of the slider matching the screw guide rail (2). A nozzle A (2011) is installed through the middle of the connecting frame A (201), and the outlet of the nozzle A (2011) extends into the inside of the conveying trough (101). Connecting frames B (202) are symmetrically installed on both sides of the support frame (1) through servo electric cylinders C (221). A nozzle B (203) is installed through the middle of the connecting frame B (202), and the outlet of the nozzle B (203) extends to the inside of the conveying trough (101) through the through groove. An abrasive trough (303) is embedded below the cross frame (105). An air compressor (3031) is fixedly installed on the other side below the cross frame (105), and the air compressor (3031) is connected to the abrasive trough (303) through a pipeline. The abrasive trough (303) is connected to the nozzle A (2011) and the nozzle B (203) through a telescopic metal pipe pipeline.

2. A dust blowing and impurity removal structure for a conveyor line for scrap steel processing as claimed in claim 1, characterized in that: A limit plate A (102) is installed on one side of the conveying trough (101) via a servo electric cylinder A (1021), conveying rollers A (103) are equidistantly embedded and rotatably connected at the lower surface of one side of the conveying trough (101) and below the limit plate A (102), and the number of conveying rollers A (103) is at least ten pairs, and adjacent conveying rollers A (103) are connected via a chain transmission, and a limit plate B (104) is installed on the other side of the conveying trough (101) via a servo electric cylinder B (1041), and the conveying trough (101) is provided with a plurality of conveying rollers A (103) disposed on the conveying trough (101). Conveying rollers B (1043) are equidistantly embedded and rotatably connected on the lower surface of the other side and below the limiting plate B (104), and the number of the conveying rollers B (1043) is at least ten pairs, and adjacent conveying rollers B (1043) are connected via a chain transmission. Stepping motors (1031) are installed on one side of the limiting plate A (102), one side of the limiting plate B (104) and both sides inside the conveying trough (101), and the output shaft of the stepping motor (1031) is connected to the corresponding conveying roller A (103) or conveying roller B (1043) via a coupling.

3. A dust blowing and impurity removal structure for a conveyor line for scrap steel processing as claimed in claim 2, characterized in that: The surface of the conveying roller B (1043) is provided with a plurality of punched holes.

4. A dust blowing and impurity removal structure for a conveyor line for scrap steel processing as claimed in claim 1, characterized in that: An exhaust fan (3) is fixedly mounted above the horizontal frame (105), a connecting groove (301) and an abrasive recovery groove (302) are fixedly mounted above the horizontal frame (105), and an outlet of the abrasive recovery groove (302) extends into the interior of the abrasive groove (303), and two sides of the connecting groove (301) are respectively connected to an inlet of the exhaust fan (3) and the abrasive recovery groove (302) via connecting pipes, an impurity receiving groove (3011) is slidably connected inside the connecting groove (301), and a sealing rubber ring is bonded to a contact area between the impurity receiving groove (3011) and the connecting groove (301), and openings are provided at positions corresponding to the connecting pipe on both sides of the impurity receiving groove (3011), and a filter screen A is embedded and mounted at the opening of the impurity receiving groove (3011) on one side close to the exhaust fan (3), and a filter screen B is embedded and mounted at a position corresponding to the connecting pipe on one side of the abrasive recovery groove (302).

5. A dust blowing and impurity removal structure for a conveyor line for scrap steel processing as claimed in claim 4, characterized in that: An electric valve (3021) is installed at the outlet of the abrasive recovery tank (302).

6. The dust blowing and impurity removal structure for a conveyor line for scrap steel processing as claimed in claim 1, characterized in that: A dust collector head A (304) is embedded and installed at the upper and lower sides of the conveying trough (101) corresponding to the nozzle A (2011), and a through slot is provided in the middle of the dust collector head A (304), and telescopic protective covers A are bonded to both sides of the nozzle A (2011), and the other sides of the two telescopic protective covers A are respectively bonded to the two sides of the through slot, and the dust collector head A (304) is connected to the abrasive recovery trough (302) pipeline, and dust collector heads B (305) are embedded and installed at the two sides of the conveying trough (101) corresponding to the nozzle B (203), and a through opening is provided in the middle of the dust collector head B (305), and telescopic protective covers B are bonded to both sides of the dust collector head B (305), and the other sides of the two telescopic protective covers B are respectively bonded to the two sides of the through opening.

7. A dust blowing and impurity removal structure for a conveyor line for scrap steel processing as claimed in claim 2, characterized in that: A cavity (1042) is embedded in the interior of the limiting plate B (104) and below the conveying trough (101) at a position corresponding to the conveying roller B (1043), and a portion of the conveying roller B (1043) extends into the interior of the cavity (1042), and the cavity (1042) is connected to a pipe of the abrasive recovery trough (302).

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