Automatic screening device for steel shot processing

Abstract

This invention provides an automatic screening device for steel shot processing, relating to the field of steel shot screening technology. It includes a steel shot cooling and forming tank and a screening drum assembly. A screening connection groove is fixedly connected to one side surface of the steel shot cooling and forming tank. The screening drum assembly is fixedly connected to the screening connection groove. A molten iron furnace mounting frame is fixedly installed at the upper end of the steel shot cooling and forming tank. A molten iron injection furnace is fixedly installed in the middle of the molten iron furnace mounting frame. A molten iron swirl polishing table is rotatably installed at the lower end of the molten iron injection furnace. In this invention, molten iron is added from above the molten iron injection furnace and thrown into the water of the steel shot cooling and forming tank by the rotating molten iron swirl polishing table at the lower end for cooling and forming. The steel shot is then retrieved by a steel shot retrieval plate on a steel shot conveyor belt and sent to the screening drum assembly for screening. The screening drum assembly can separate the formed steel shot into their respective required diameters and screen out any stuck-together waste, while also preventing outlet blockage during feeding.

Description

Technical Field

[0001] The invention relates to the technical field of steel shot screening, in particular to an automatic screening device for steel shot processing. Background Art

[0002] Steel shot, first melt high-quality steel blocks, hair, steel chips, and then use centrifugal disk to high-speed centrifugal forming to throw the molten steel into water, so that the surface temperature of the steel shot drops sharply to form a shot body, which is a quenching. After the first quenching, the shot body is dried and reheated and tempered in the furnace to achieve the appropriate hardness. The tempered steel shot is sorted into different grades of products that meet SAE standards through a mechanical screen for shot peening equipment. In the process of steel shot forming in water, due to a certain forming rate during the cooling process in water, the following waste and steel shots of different diameters will appear. However, in the current steel shot manufacturing process, it is not possible to discharge the steel shots step by step after screening, and the waste can be eliminated to the end. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides an automatic screening device for steel shot processing, which solves the problems raised in the background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic screening device for steel shot processing, comprising a steel shot cooling and forming pool and a screening drum assembly, a screening connecting groove is fixedly connected to the surface of one side of the steel shot cooling and forming pool, the screening drum assembly is fixedly connected to the screening connecting groove, an iron molten furnace mounting frame is fixedly installed on the upper end of the steel shot cooling and forming pool, an iron molten furnace mounting frame is fixedly installed in the middle of the iron molten furnace mounting frame, and an iron molten injection furnace is rotatably arranged at the lower end of the iron molten furnace.

[0005] Preferably, a steel shot discharging slot is provided on one side of the steel shot cooling and forming pool and directly above the screening connecting slot, conveyor belt support arms are fixedly installed at both ends of the outer side of the steel shot discharging slot, transfer belt side plates are fixedly installed on the inner sides of the two conveyor belt support arms, a steel shot conveyor belt is rotatably arranged between the two transfer belt side plates, and a plurality of steel shot salvage plates are arranged on the surface of the steel shot conveyor belt.

[0006] Preferably, the screening drum assembly comprises: a steel shot sorting discharge trough group, a steel shot sorting drum group, a sorting drive motor, a drum outer shaft, a first synchronous turntable, a second synchronous turntable, and a combing outer shaft;

[0007] A steel shot sorting roller group is fixedly installed on the upper end of the steel shot sorting trough group, a sorting drive motor is fixedly installed on one end of the steel shot sorting roller group, a rotating drum outer shaft is rotatably installed on the other end of the steel shot sorting roller group, a first synchronous turntable is coaxially fixedly installed on the outer end of the rotating drum outer shaft, a combing material outer shaft is rotatably provided on one side of the steel shot sorting trough group, a second synchronous turntable is coaxially fixedly installed on the outer end of the combing material outer shaft, and a transmission belt is sleeved on the first synchronous turntable and the second synchronous turntable;

[0008] A waste trough is arranged at the outer end of the steel shot sorting trough group and below the second synchronous turntable, and the waste trough is arranged in the screening connecting trough.

[0009] Preferably, a sorting feed base is fixedly installed on the upper end of the steel shot sorting roller group, a sorting feed trough is integrated on the upper end of the sorting feed base, and feed protection plates are integrated on both sides of the sorting feed trough;

[0010] A steel shot drying hood is fixedly installed above the sorting feed trough.

[0011] Preferably, a heated copper tube and a fan are provided in the steel shot drying hood.

[0012] Preferably, the steel shot sorting discharge trough group comprises: a discharge trough body, a discharge trough combing shaft, a combing turntable, a combing rubber belt, a combing rake, a discharge trough slope, a steel shot discharge port, a discharge port guide plate, and a discharge trough partition plate;

[0013] The bottom of the discharging trough body is provided with a discharging trough slope, and two discharging trough partitions are provided on the discharging trough slope. A discharging trough combing shaft is rotatably penetrated through the discharging trough body and the discharging trough partition, and a plurality of combing turntables are coaxially fixedly installed on the discharging trough combing shaft, and a plurality of combing rubber belts are fixedly installed on the combing turntables, and a combing rake is fixedly installed at the end of each combing rubber belt;

[0014] A plurality of steel shot discharge ports are provided on the side of the discharge trough body, and a discharge port guide plate is integrally provided on the outer side of each of the steel shot discharge ports.

[0015] Preferably, an outer shaft connector is provided at the outer end of the combing shaft of the discharge trough, and the outer shaft connector is coaxially and fixedly connected with the combing outer shaft.

[0016] Preferably, the steel shot sorting drum group comprises: a drum shell, a drum feed port, a drum unloading cover, a motor shaft connector, a feed hopper, a feed grid, a discharge grid, a sorting drum, a sorting hole, a sorting propulsion auger, and a sorting partition;

[0017] The upper end of the drum shell is integrally provided with a drum feed port, the lower end of the drum feed port is integrally provided with a feed hopper, a motor shaft connector is rotatably installed in the middle of the drum shell, a feed grid plate and a discharge grid plate are fixedly installed on the motor shaft connector and located in the drum shell, and a sorting drum is fixedly installed on the sides of the feed grid plate and the discharge grid plate;

[0018] A sorting propulsion auger is arranged on the motor shaft connector and inside the sorting drum, a plurality of sorting holes are opened on the sorting drum and in the gap of the sorting propulsion auger, a drum unloading cover is integrated at the lower end of the drum shell, and a plurality of sorting partitions are arranged on the inner wall of the drum unloading cover.

[0019] Preferably, the sorting holes are provided with a plurality of groups of segments corresponding to the cavities separated by the sorting partitions, and the apertures of each group of segments are different.

[0020] Preferably, a waste material discharge port is provided at the lower end of the drum shell and outside the drum lower material cover;

[0021] The motor shaft connector is coaxially fixedly connected to the output shaft of the sorting drive motor.

[0022] The present invention provides an automatic screening device for steel shot processing, which has the following beneficial effects:

[0023] (1) In the present invention, molten iron is added from the top of the iron injection furnace, and the iron is thrown into the water of the steel shot cooling and forming pool by the rotating iron spinning table at the lower end to cool and form the steel shot. Then, the steel shot salvaging plate on the steel shot conveyor belt salvages the steel shot and sends it to the screening drum assembly for screening. The screening drum assembly can screen the formed steel shots into the required diameters, and the waste materials that stick together can be screened out at the end, and the outlet can be prevented from being blocked when the material is discharged.

[0024] (2) The present invention fishes out the steel shots from the steel shot conveyor belt and drops them into the sorting feed trough, and uses the steel shot drying cover at the upper end to dry the moisture on them to prevent qualified steel shots from being screened out during screening. After the dried steel shots fall into the steel shot sorting drum group, the sorting drive motor is started to drive the internal rotation screening, and after screening, the steel shots fall into the steel shot sorting discharge trough group and the waste trough according to the classification, and the sorting drive motor drives the outer shaft of the rotating drum to rotate through the steel shot sorting drum group, and drives the second synchronous rotating disk at the lower end to synchronously operate the steel shot sorting discharge trough group through the belt on the first synchronous rotating disk;

[0025] (3) After the combing outer shaft of the present invention is driven to rotate by the second synchronous turntable, the outer shaft connector is synchronously adjusted to rotate, thereby driving the internal combing turntable to rotate, and the combing rubber belt on the side thereof drives the combing rake at the tail end to move, thereby stirring the steel shot to dredge the steel shot discharge port when it is blocked, thereby ensuring smooth discharge;

[0026] (4) The present invention drives the motor shaft connector to rotate through the sorting drive motor, thereby driving the steel shots that enter the sorting drum through the feed grid at the feed hopper and move in the gap of the sorting push auger, so that they can be screened out through the sorting holes of different apertures in each group of sections and screened out from the corresponding sorting partition intervals. The final waste is unable to pass through because it is stuck together, and will finally pass through the discharge grid and fall into the waste trough through the waste discharge port, completing the screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a structural schematic diagram of another viewing angle in the present invention;

[0029] Figure 3 It is a structural schematic diagram of the screening drum assembly in the present invention;

[0030] Figure 4 It is a structural schematic diagram of another viewing angle in the present invention;

[0031] Figure 5 It is a structural schematic diagram of the steel shot sorting trough group in the present invention;

[0032] Figure 6 It is a structural schematic diagram of another perspective of the steel shot sorting and discharging trough group in the present invention;

[0033] Figure 7 It is a structural schematic diagram of the steel shot sorting roller group in the present invention;

[0034] Figure 8 It is a side view structural schematic diagram of the steel shot sorting roller group in the present invention;

[0035] Fig. 9 For the present invention Figure 8 Schematic diagram of the cross-sectional structure along line aa.

[0036] Among them, 1. Steel shot cooling and forming pool; 2. Hot metal furnace mounting frame; 3. Hot metal injection furnace; 4. Hot metal spinning table; 5. Steel shot discharging slot; 6. Screening connection slot; 7. Screening drum assembly; 701. Steel shot sorting discharging slot group; 7011. Discharging slot body; 7012. Discharging slot combing shaft; 7013. Combing turntable; 7014. Combing rubber belt; 7015. Combing rake; 7016. Discharging slot slope; 7017. Steel shot discharging port; 7018. Discharging port guide plate; 7019. Discharging slot partition; 70110. External shaft connector; 702. Steel shot sorting roller group; 7021. Roller shell; 7022. Roller feed port; 7023. Roller unloading cover; 7024. 024, motor shaft connector; 7025, feed hopper; 7026, feed grid; 7027, discharge grid; 7028, sorting drum; 7029, sorting hole; 70210, sorting push auger; 70211, waste discharge port; 70212, sorting partition; 703, sorting drive motor; 704, sorting feed base; 705, sorting feed trough; 706, feed protection plate; 707, steel shot drying cover; 708, drum outer shaft; 709, first synchronous turntable; 710, waste trough; 711, second synchronous turntable; 712, combing outer shaft; 8, conveyor belt support arm; 9, conveyor belt side plate; 10, steel shot conveyor belt; 11, steel shot salvage plate. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] like Figure 1 to Figure 2 As shown, an embodiment of the present invention provides an automatic screening device for steel shot processing, including a steel shot cooling and forming pool 1 and a screening drum assembly 7, a screening connecting groove 6 is fixedly connected to the surface of one side of the steel shot cooling and forming pool 1, and the screening drum assembly 7 is fixedly connected to the screening connecting groove 6, a molten iron furnace mounting frame 2 is fixedly installed on the upper end of the steel shot cooling and forming pool 1, a molten iron injection furnace 3 is fixedly installed in the middle of the molten iron furnace mounting frame 2, and a molten iron spinning table 4 is rotatably arranged at the lower end of the molten iron injection furnace 3, a steel shot discharging notch 5 is opened on one side of the steel shot cooling and forming pool 1 and located directly above the screening connecting groove 6, conveyor belt support arms 8 are fixedly installed at both ends of the outer side of the steel shot discharging notch 5, transfer belt side plates 9 are fixedly installed on the inner sides of the two conveyor belt support arms 8, a steel shot conveyor belt 10 is rotatably arranged between the two transfer belt side plates 9, and a plurality of steel shot salvaging plates 11 are arranged on the surface of the steel shot conveyor belt 10.

[0039] In the above technical solution, molten iron is added from the top of the molten iron injection furnace 3, and the molten iron is thrown into the water of the steel shot cooling and molding pool 1 by the rotating molten iron spinning table 4 at the lower end to cool and mold. Then, the steel shot salvaging plate 11 on the steel shot conveyor belt 10 salvages it and sends it to the screening drum assembly 7 for screening. The screening drum assembly 7 can screen the molded steel shots into their required diameters, and screen out the sticky waste materials, which can also prevent the outlet from being blocked during unloading.

[0040] like Figure 1 , Figure 3 , Figure 4 As shown, the screening drum assembly 7 includes: a steel shot sorting trough group 701, a steel shot sorting roller group 702, a sorting drive motor 703, a drum outer shaft 708, a first synchronous turntable 709, a second synchronous turntable 711, and a combing material outer shaft 712; the steel shot sorting trough group 701 has a steel shot sorting roller group 702 fixedly installed on the upper end, the steel shot sorting roller group 702 has a sorting drive motor 703 fixedly installed on one end, the steel shot sorting roller group 702 has a drum outer shaft 708 rotatably installed on the other end, the outer end of the drum outer shaft 708 is coaxially fixedly installed with a first synchronous turntable 709, the steel shot sorting trough group 701 has a combing material outer shaft 712 rotatably provided on one side, and the outer end of the combing material outer shaft 712 is coaxially fixedly installed with a first synchronous turntable 709. A second synchronous turntable 711 is fixedly mounted on the shaft, and a transmission belt is sleeved on the first synchronous turntable 709 and the second synchronous turntable 711; a waste trough 710 is arranged at the outer end of the steel shot sorting trough group 701 and below the second synchronous turntable 711, and the waste trough 710 is arranged in the screening connecting trough 6, and a sorting feed base 704 is fixedly mounted on the upper end of the steel shot sorting roller group 702, and a sorting feed trough 705 is integrated on the upper end of the sorting feed base 704, and feed protection plates 706 are integrated on both sides of the sorting feed trough 705; a steel shot drying hood 707 is fixedly mounted above the sorting feed trough 705, and a heating copper tube and a fan are arranged in the steel shot drying hood 707.

[0041] In the above technical solution, after the steel shots are fished out by the steel shot conveyor belt 10, they fall into the sorting feed trough 705, and the moisture on them is dried by the steel shot drying cover 707 at the upper end to prevent qualified steel shots from being screened out during screening. After the dried steel shots fall into the steel shot sorting drum group 702, the sorting drive motor 703 is started to drive the internal rotation for screening, and after screening, they fall into the steel shot sorting discharge trough group 701 and the waste trough 710 according to the classification, and the sorting drive motor 703 drives the outer shaft 708 of the rotating drum to rotate through the steel shot sorting drum group 702, and synchronously drives the second synchronous turntable 711 at the lower end through the belt on the first synchronous turntable 709 to synchronously operate inside the steel shot sorting discharge trough group 701.

[0042] like Figure 3 , Figure 5 , Figure 6 As shown, the steel shot sorting discharge trough group 701 includes: a discharge trough body 7011, a discharge trough combing shaft 7012, a combing turntable 7013, a combing rubber belt 7014, a combing rake 7015, a discharge trough slope 7016, a steel shot discharge port 7017, a discharge port guide plate 7018, and a discharge trough partition 7019; the discharge trough body 7011 is provided with a discharge trough slope 7016 at the bottom, and two discharge trough partitions 7019 are provided on the discharge trough slope 7016, and the discharge trough body 7011 and the discharge trough partition 7019 are rotatably penetrated by the discharge trough shaft 7012. A plurality of combing turntables 7013 are coaxially fixedly mounted on the combing shaft 7012 of the discharge trough, a plurality of combing rubber belts 7014 are fixedly mounted on the combing turntable 7013, and a combing rake 7015 is fixedly mounted on the end of each combing rubber belt 7014; a plurality of steel shot discharge ports 7017 are opened on the side of the discharge trough body 7011, and a discharge port guide plate 7018 is integrally provided on the outer side of each steel shot discharge port 7017; an outer shaft connector 70110 is provided at the outer end of the combing shaft 7012 of the discharge trough, and the outer shaft connector 70110 is coaxially fixedly connected to the combing outer shaft 712.

[0043] In the above technical solution, after the combing outer shaft 712 is driven to rotate by the second synchronous turntable 711, the outer shaft connector 70110 is synchronously mobilized to rotate, thereby driving the internal combing turntable 7013 to rotate, and the combing rubber belt 7014 on its side will drive the combing rake 7015 at the tail end to move, thereby stirring the steel shots to clear the steel shot discharge port 7017 when blocked, thereby ensuring smooth discharge.

[0044] like Figure 3 , Figures 7 to 9As shown, the steel shot sorting roller group 702 includes: a roller shell 7021, a roller feed port 7022, a roller unloading cover 7023, a motor shaft connector 7024, a feed hopper 7025, a feed grid 7026, a discharge grid 7027, a sorting roller 7028, a sorting hole 7029, a sorting propulsion auger 70210, and a sorting partition 70212; the upper end of the roller shell 7021 is integrated with a roller feed port 7022, and the lower end of the roller feed port 7022 is integrated with a feed hopper 7025. A motor shaft connector 7024 is rotatably installed in the middle of the roller shell 7021, and the motor shaft connector 7024 is located in the roller shell 7021 and fixedly installed with a feed grid 7026 and a discharge grid 7027. The feed grid 7026 and the discharge grid 70 A sorting roller 7028 is fixedly installed on the side 27; a sorting propulsion auger 70210 is arranged on the motor shaft connector 7024 and located in the sorting roller 7028, a plurality of sorting holes 7029 are opened on the sorting roller 7028 and located in the gap of the sorting propulsion auger 70210, a roller unloading cover 7023 is integrated at the lower end of the roller shell 7021, a plurality of sorting partitions 70212 are arranged on the inner wall of the roller unloading cover 7023, the sorting holes 7029 are provided with a plurality of groups of sections corresponding to the cavities separated by the sorting partitions 70212 and the apertures of each group of sections are different, a waste discharge port 70211 is opened at the lower end of the roller shell 7021 and located outside the roller unloading cover 7023; the motor shaft connector 7024 is coaxially and fixedly connected with the output shaft of the sorting drive motor 703.

[0045] In the above technical solution, the motor shaft connector 7024 is driven to rotate by the sorting drive motor 703, so that the steel shots entering the sorting drum 7028 through the feed grid 7026 at the feed funnel 7025 can be driven and moved in the gap of the sorting push auger 70210, so that they can be screened out through the sorting holes 7029 with different apertures in each group of sections, and screened out from the corresponding sorting partition 70212 intervals. The final waste is unable to pass through due to sticking together, and will finally pass through the discharge grid 7027 and fall into the waste trough 710 through the waste discharge port 70211 to complete the screening.

[0046] Working principle:

[0047] In the present invention, molten iron is added from the top of the iron injection furnace 3, and the iron is thrown into the water of the steel shot cooling and forming pool 1 by the rotating iron spinning table 4 at the lower end to cool and form the iron, and then the steel shot salvaging plate 11 on the steel shot conveyor belt 10 salvages the iron shot and sends it to the screening drum assembly 7 for screening. The screening drum assembly 7 can screen the formed steel shots into the required diameters, and the waste materials that stick together can be screened out at the end, and the outlet can be prevented from being blocked when the material is discharged;

[0048] Among them, after the steel shots are fished out by the steel shot conveyor belt 10, they fall into the sorting feed trough 705, and the moisture on them is dried by the steel shot drying cover 707 at the upper end to prevent qualified steel shots from being screened out during screening. After the dried steel shots fall into the steel shot sorting roller group 702, the sorting drive motor 703 is started to drive the internal rotation screening, and after screening, they fall into the steel shot sorting discharge trough group 701 and the waste trough 710 in a graded manner, and the sorting drive motor 703 drives the outer shaft 708 of the rotating drum to rotate through the steel shot sorting roller group 702, and synchronously drives the second synchronous turntable 711 at the lower end through the belt on the first synchronous turntable 709 to synchronously operate inside the steel shot sorting discharge trough group 701;

[0049] Among them, after the combing material outer shaft 712 is driven to rotate by the second synchronous turntable 711, the outer shaft connector 70110 is synchronously adjusted to rotate, thereby driving the internal combing material turntable 7013 to rotate, and the combing material rubber belt 7014 on the side will drive the combing material rake 7015 at the tail end to move, so as to stir the steel shot and dredge the steel shot discharge port 7017 when it is blocked, so as to ensure smooth discharge;

[0050] Among them, the motor shaft connector 7024 is driven to rotate by the sorting drive motor 703, so that the steel shots entering the sorting drum 7028 through the feed grid 7026 at the feed funnel 7025 can be driven and moved in the gap of the sorting push auger 70210, so that they can be screened out through the sorting holes 7029 with different apertures in each group of sections, and screened out from the corresponding sorting partition 70212 intervals. The final waste is unable to pass through due to sticking together, and will finally pass through the discharge grid 7027 and fall into the waste trough 710 through the waste discharge port 70211 to complete the screening.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. An automatic screening device for steel shot processing, comprising a steel shot cooling and forming pool (1) and a screening drum assembly (7), characterized in that: A screening connection groove (6) is fixedly connected to the surface of one side of the steel shot cooling and forming pool (1), the screening drum assembly (7) is fixedly connected to the screening connection groove (6), a molten iron furnace mounting frame (2) is fixedly installed on the upper end of the steel shot cooling and forming pool (1), a molten iron injection furnace (3) is fixedly installed in the middle of the molten iron furnace mounting frame (2), and a molten iron spinning table (4) is rotatably arranged at the lower end of the molten iron injection furnace (3); The screening drum assembly (7) comprises: a steel shot sorting discharge trough group (701), a steel shot sorting roller group (702), a sorting drive motor (703), a drum outer shaft (708), a first synchronous rotating disk (709), a second synchronous rotating disk (711), and a combing outer shaft (712); A steel shot sorting roller group (702) is fixedly mounted on the upper end of the steel shot sorting trough group (701), a sorting drive motor (703) is fixedly mounted on one end of the steel shot sorting roller group (702), a rotating drum outer shaft (708) is rotatably mounted on the other end of the steel shot sorting roller group (702), a first synchronous turntable (709) is coaxially fixedly mounted on the outer end of the rotating drum outer shaft (708), a combing material outer shaft (712) is rotatably mounted on one side of the steel shot sorting trough group (701), a second synchronous turntable (711) is coaxially fixedly mounted on the outer end of the combing material outer shaft (712), and a transmission belt is sleeved on the first synchronous turntable (709) and the second synchronous turntable (711); A waste trough (710) is provided at the outer end of the steel shot sorting trough group (701) and below the second synchronous rotating disk (711), and the waste trough (710) is provided in the screening connecting trough (6); The steel shot sorting discharge trough group (701) comprises: a discharge trough body (7011), a discharge trough combing shaft (7012), a combing turntable (7013), a combing rubber belt (7014), a combing rake (7015), a discharge trough slope (7016), a steel shot discharge port (7017), a discharge port guide plate (7018), and a discharge trough partition plate (7019); The inner bottom of the discharging trough body (7011) is provided with a discharging trough slope (7016), and two discharging trough partitions (7019) are provided on the discharging trough slope (7016). A discharging trough combing shaft (7012) is rotatably penetrated through the discharging trough body (7011) and the discharging trough partition (7019), and a plurality of combing rotating disks (7013) are coaxially fixedly mounted on the discharging trough combing shaft (7012), and a plurality of combing rubber belts (7014) are fixedly mounted on the combing rotating disks (7013), and a combing rake (7015) is fixedly mounted at the end of each combing rubber belt (7014); A plurality of steel shot discharge ports (7017) are provided on the side of the discharge port body (7011), and a discharge port guide plate (7018) is integrally provided on the outer side of each of the steel shot discharge ports (7017).

2. The automatic screening device for steel shot processing according to claim 1, characterized in that: A steel shot discharging slot (5) is provided on one side of the steel shot cooling and forming pool (1) and directly above the screening connection slot (6); conveyor belt support arms (8) are fixedly installed at both ends of the outer side of the steel shot discharging slot (5); transfer belt side plates (9) are fixedly installed on the inner sides of the two conveyor belt support arms (8); a steel shot conveyor belt (10) is rotatably arranged between the two transfer belt side plates (9); and a plurality of steel shot salvaging plates (11) are arranged on the surface of the steel shot conveyor belt (10).

3. The automatic screening device for steel shot processing according to claim 2 is characterized in that: A sorting feed base (704) is fixedly mounted on the upper end of the steel shot sorting roller group (702), a sorting feed trough (705) is integrally arranged on the upper end of the sorting feed base (704), and feed protection plates (706) are integrally arranged on both sides of the sorting feed trough (705); A steel shot drying hood (707) is fixedly installed above the sorting feed trough (705).

4. The automatic screening device for steel shot processing according to claim 3 is characterized in that: The steel shot drying hood (707) is provided with a heating copper tube and a fan.

5. The automatic screening device for steel shot processing according to claim 4, characterized in that: An outer shaft connector (70110) is provided at the outer end of the material discharging trough combing shaft (7012), and the outer shaft connector (70110) is coaxially fixedly connected to the material discharging trough outer shaft (712).

6. The automatic screening device for steel shot processing according to claim 5, characterized in that: The steel shot sorting roller group (702) comprises: a roller shell (7021), a roller feed port (7022), a roller unloading cover (7023), a motor shaft connector (7024), a feed hopper (7025), a feed grid plate (7026), a discharge grid plate (7027), a sorting roller (7028), a sorting hole (7029), a sorting propulsion auger (70210), and a sorting partition plate (70212); The upper end of the drum shell (7021) is integrally provided with a drum feed port (7022), the lower end of the drum feed port (7022) is integrally provided with a feed hopper (7025), a motor shaft connector (7024) is rotatably mounted in the middle of the drum shell (7021), a feed grid plate (7026) and a discharge grid plate (7027) are fixedly mounted on the motor shaft connector (7024) and located inside the drum shell (7021), and a sorting drum (7028) is fixedly mounted on the sides of the feed grid plate (7026) and the discharge grid plate (7027); A sorting propulsion auger (70210) is arranged on the motor shaft connector (7024) and located inside the sorting drum (7028); a plurality of sorting holes (7029) are provided on the sorting drum (7028) and located inside the gap of the sorting propulsion auger (70210); a drum unloading cover (7023) is integrally arranged at the lower end of the drum shell (7021); and a plurality of sorting partitions (70212) are arranged on the inner wall of the drum unloading cover (7023).

7. The automatic screening device for steel shot processing according to claim 6, characterized in that: The sorting hole (7029) is provided with a plurality of groups of segments corresponding to the cavities separated by the sorting partition (70212), and the aperture of each group of segments is different.

8. The automatic screening device for steel shot processing according to claim 7, characterized in that: A waste material discharge port (70211) is provided at the lower end of the drum shell (7021) and outside the drum lower material cover (7023); The motor shaft connector (7024) is coaxially and fixedly connected to the output shaft of the sorting drive motor (703).

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