Treatment device and treatment method for sodium hydrosulfite residues

Abstract

The invention belongs to the technical field of sodium hydrosulfite production, and particularly discloses a sodium hydrosulfite residue treatment device and method.The sodium hydrosulfite residue treatment device comprises a screening box, a storage groove is formed in the inner bottom face of the screening box, the front side of the storage groove penetrates to the front side of the screening box, and a storage box is slidably arranged in the storage groove; a tail plate is fixed to the position, close to the rear side edge, of the top of the storage box, and the rear side of the tail plate slidably penetrates through the rear side of the screening box. According to the device, crushed particles are placed in the screening box, the particles with different sizes are screened in the screening box through the screening assembly, and in the screening process, the cleaning assembly can be driven to clean the screening assembly while the screening assembly is driven to work through the transmission mechanism; and meanwhile, the cleaning assembly pushes the large particles which do not pass through the sieve plate into the discharging groove, and finally the large particles are discharged through the cleaning assembly.

Description

Technical Field

[0001] The invention relates to the technical field of sodium hydrosulfite production, and in particular to a device and method for processing sodium hydrosulfite residue. Background Art

[0002] Sulphite is a white crystalline powder, which is widely used in reduction dyeing, reduction cleaning, printing and decolorization in the textile industry, and for bleaching of silk, wool, nylon and other fabrics. Since it does not contain heavy metals, the bleached fabrics are very bright in color and not easy to fade. In terms of various substances, it can also be used for bleaching food, such as gelatin, sucrose, candied fruit, and bleaching of soap, animal (plant) oil, bamboo, porcelain clay, etc.

[0003] At present, crystalline residue is produced when preparing insurance powder. It is necessary to crush the larger particles of the residue crystals and then dissolve them to facilitate the purification of the insurance powder again. However, after crushing, the fine particles and the larger particles are mixed with each other and it is difficult to distinguish them. After mixing, the larger particles of the crystalline residue are difficult to be well recycled. At the same time, in subsequent use, the melting rate of the white crystalline powder will be inconsistent, affecting the accuracy of concentration adjustment. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a device and method for processing hydrosulfite residue.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a device for processing hydrosulfite residue, comprising a screening box, a storage slot is provided on the inner bottom surface of the screening box, the front side of the storage slot penetrates to the front side of the screening box, a storage box is slidably arranged inside the storage slot, a tail plate is fixed to the top of the storage box near the rear edge, the rear side of the tail plate slides and penetrates to the rear side of the screening box, and the top of the tail plate is flush with the top of the storage slot; A screening assembly is arranged inside the screening box, a transmission mechanism is arranged on the rear side of the screening box, side guard plates are arranged on the top of the screening box near the edges on both sides, a drainage groove is opened on the inner wall of one side of the screening box, a drainage assembly is arranged inside the drainage groove, and the front side of the drainage groove passes through to the front side of the screening box near the bottom edge.

[0006] Preferably, the screening assembly includes two screen plates, and the rear side of the screening box is provided with two sliding openings which penetrate into the interior of the screening box, and racks are slidably arranged inside the two sliding openings, and the rear sides of the two racks extend to the rear side of the screening box, and the front sides of the two racks are fixed to the screen plates accordingly.

[0007] Preferably, the rear side of the screening box is rotatably connected to a transmission gear, the two racks are respectively meshed with the transmission gear, the transmission gear is located between the opposite sides of the two racks, the top of the sieve plate is concave, the inner bottom surface of the sieve plate is provided with a through opening, both sides of the sieve plate are provided with side openings, the two side openings are both penetrated into the interior of the sieve plate, the two side openings are respectively connected with the through openings, and both ends of the through openings are correspondingly penetrated to the two sides of the sieve plate.

[0008] Preferably, the transmission mechanism includes a motor, and a rotating shaft is rotatably connected between the front and rear inner walls of the screening box near the edges on both sides. The output end of the motor is interconnected with one of the rotating shafts, and the two rotating shafts are located between the opposite sides of the two screen plates. Rollers are fixed on the outer surfaces of the two rotating shafts in the middle part, and a conveyor belt is arranged between the outer surfaces of the two rollers, and a cleaning component is arranged on the conveyor belt.

[0009] Preferably, one end of one of the rotating shafts extends to the rear side of the screening box, the rear side of the screening box is rotatably connected to a turntable, the turntable and the rotating shaft are connected to each other, the rear side of the screening box is located above the turntable and is rotatably connected to a rocker arm, a shifting opening is provided on the front side of the rocker arm, and the bottom of the rocker arm extends below the turntable.

[0010] Preferably, a guide sleeve is provided on the rear side of the screening box, located on one side of the rack, a reciprocating rod is slidably connected inside the guide sleeve, one end of the reciprocating rod is fixed to one end of one of the racks, a column is provided on the reciprocating rod, the column is slidably engaged in the inside of the dial port, a shift rod is fixed on the rear side of the turntable near the edge of the outer surface, the shift rod is slidably engaged in the inside of the dial port.

[0011] Preferably, the cleaning component includes a scraper, a connecting block is fixed on the top of the conveyor belt, the connecting block is slidably connected to the inside of the through-port, the scraper is fixed on the top of the connecting block, the scraper is located inside the screen plate, the bottom of the scraper is in contact with the inner bottom surface of the screen plate, the top of the conveyor belt extends to the inner bottom surface of the through-port, and a plurality of scraping cavities are equidistantly provided at the bottom of the scraper near one side edge.

[0012] Preferably, the discharge assembly includes a spiral push rod, which is rotatably connected between the front and rear inner walls of the discharge trough, and a belt is provided between the outer surface of the spiral push rod near the rear edge and one of the rotating shafts, and one side of the discharge trough near the top edge penetrates into the interior of the screening box.

[0013] Preferably, a guide plate is obliquely arranged between the front and rear sides of the screening box near one side edge, the top of the guide plate extends to one side edge of the screen plate, the bottom of the guide plate extends to the connection between the discharge trough and the screening box, and two material guide plates are arranged between the front and rear inner walls of the screening box, the bottoms of the two material guide plates are correspondingly extended obliquely to the two sides of the storage trough, and the tops of the two material guide plates are correspondingly extended obliquely to the two sides of the screen plate.

[0014] The present invention also provides a method for treating sodium hypochlorite residue, which is applied to a device for treating sodium hypochlorite residue. The method for treating sodium hypochlorite residue comprises the following steps: Step S1: placing the crushed particles inside the screening box, and screening particles of different sizes through the screening assembly inside the screening box. During the screening process, the screening assembly is driven by the transmission mechanism to work, and the cleaning assembly can also be driven to clean the screening assembly to prevent the larger particles from clogging the sieve holes on the sieve plate during the screening process. At the same time, the cleaning assembly pushes the larger particles that have not passed through the sieve plate to the inside of the discharge trough, and finally discharges them through the cleaning assembly; Step S2: When the screening assembly is working, the particles on the screen plates can be screened by sliding the two screen plates back and forth, wherein the reciprocating sliding of the two screen plates is a synchronous alternating motion; Step S3: When the discharge assembly is working, the particles in the discharge trough can be pushed to the rear side of the screening box by the rotation of the spiral push rod, so that larger particles that do not meet the screening requirements are discharged; Step S4: When the transmission mechanism is working, the motor drives the shaft to rotate, thereby driving the roller to rotate, and then driving the conveyor belt. During the conveyor belt driving process, the cleaning component is driven to push the larger particles that have not passed through the screen plate into the discharge trough. At the same time, the rotation of the shaft also drives the turntable to rotate. When the turntable rotates, the lever drives the swing rod to swing back and forth. When the swing rod swings back and forth, the lever restricts the column, which can drive the column to reciprocate, and then drive the reciprocating rod to reciprocate and push one of the racks to move, so that it drives the screening component to work; Step S5: When the cleaning assembly is working, when the conveyor belt is driven, it will drive the connecting block to slide inside the through-hole, and at the same time, the scraper will push the larger particles on the bottom surface of the screen plate to the side of the guide plate, thereby cleaning the screen plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention places the crushed particles inside the screening box, and screens the particles of different sizes through the screening assembly inside the screening box. During the screening process, the screening assembly is driven by the transmission mechanism to work, and the cleaning assembly can also be driven to clean the screening assembly to prevent the larger particles from clogging the sieve holes on the sieve plate during the screening process. At the same time, the cleaning assembly pushes the larger particles that have not passed through the sieve plate to the inside of the discharge trough, and finally discharges them through the cleaning assembly; 2. The present invention drives the rotating shaft to rotate through the motor, thereby driving the roller to rotate, and then driving the conveyor belt. During the driving process of the conveyor belt, the cleaning component is driven to push the larger particles that have not passed through the screen plate into the discharge chute. At the same time, the rotation of the rotating shaft also drives the turntable to rotate. When the turntable rotates, the lever drives the swing rod to swing back and forth. When the swing rod swings back and forth, the lever restricts the column, which can drive the column to reciprocate, and then drive the reciprocating rod to reciprocate and push one of the racks to move, so that it drives the screening component to work; 3. The present invention can collect and discharge the generated larger particles by setting a discharge component. When the discharge component is working, the particles in the discharge trough can be pushed to the rear side of the screening box by the rotation of the spiral push rod, so that the larger particles that do not meet the screening requirements are discharged; 4. The present invention can clean the screening component by setting a cleaning component to prevent the sieve holes of the sieve plate from being blocked during the screening process. When the cleaning component is working and the conveyor belt is driven, it will drive the connecting block to slide inside the through-port, and at the same time, the scraper will push the larger particles on the bottom surface of the sieve plate to the side of the guide plate, thereby cleaning the sieve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure of a device for treating sodium hydrosulfite residues proposed by the present invention; Figure 2 A rear perspective structural diagram of a device for treating sodium hydrosulfite residues provided by the present invention; Figure 3 A schematic diagram of a three-dimensional structure of a side section of a device for treating hydrosulfite residues provided by the present invention; Figure 4 A schematic diagram of a three-dimensional structure of a cross-sectional view from another side of a device for treating hydrosulfite residues provided by the present invention; Figure 5 A schematic diagram of a side-view stereoscopic structure of a sieve plate in a device for processing hydrosulfite residues provided by the present invention; Figure 6 For the present invention Figure 2 A partial enlarged view of point A in the middle; Figure 7 For the present invention Figure 4 A partial enlarged view of point B in the middle; Figure 8 The present invention provides a schematic diagram of the main three-dimensional structure of a scraper in a device for processing hydrosulfite residue.

[0017] In the figure: 1. screening box; 2. storage tank; 3. storage box; 4. motor; 5. side guard plate; 6. screen plate; 7. tail plate; 8. slide; 9. rack; 10. transmission gear; 11. guide plate; 12. discharge chute; 13. spiral push rod; 14. belt; 15. guide plate; 16. rotating shaft; 17. roller; 18. conveyor belt; 19. scraper; 20. turntable; 21. rocker; 22. shifting mouth; 23. column; 24. shifting rod; 25. guide sleeve; 26. reciprocating rod; 27. through-mouth; 28. side mouth; 29. ​​connecting block; 30. scraping chamber. DETAILED DESCRIPTION

[0018] 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 implementation regulations described 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.

[0019] See also Figure 1-8 The present invention provides a technical solution: a device for processing hydrosulfite residue, comprising a screening box 1, a storage slot 2 is provided on the inner bottom surface of the screening box 1, the front side of the storage slot 2 penetrates to the front side of the screening box 1, a storage box 3 is slidably arranged inside the storage slot 2, a tail plate 7 is fixed to the top of the storage box 3 near the rear edge, the rear side of the tail plate 7 slides and penetrates to the rear side of the screening box 1, and the top of the tail plate 7 is flush with the top of the storage slot 2; A screening assembly is arranged inside the screening box 1, a transmission mechanism is arranged on the rear side of the screening box 1, side guard plates 5 are arranged on the top of the screening box 1 near the edges on both sides, a discharge groove 12 is opened on the inner wall of one side of the screening box 1, a discharge assembly is arranged inside the discharge groove 12, and the front side of the discharge groove 12 passes through to the front side of the screening box 1 near the bottom edge.

[0020] The effect achieved is that the crushed particles are placed inside the screening box 1, and particles of different sizes are screened by the screening component inside the screening box 1. During the screening process, the screening component is driven to work by the transmission mechanism, and the cleaning component can also be driven to clean the screening component to prevent larger particles from clogging the sieve holes on the sieve plate 6 during the screening process. At the same time, the cleaning component pushes the larger particles that have not passed through the sieve plate 6 to the inside of the discharge trough 12, and finally discharged through the cleaning component.

[0021] like Figure 2 , Figure 3 and Figure 5As shown, the screening assembly includes two screen plates 6, and two sliding openings 8 that penetrate into the interior of the screen box 1 are provided on the rear side of the screen box 1. Racks 9 are slidably arranged inside the two sliding openings 8, and the rear sides of the two racks 9 extend to the rear side of the screen box 1, and the front sides of the two racks 9 are fixed to the screen plates 6 accordingly. A transmission gear 10 is rotatably connected to the rear side of the screen box 1, and the two racks 9 are meshed with the transmission gear 10 accordingly, and the transmission gear 10 is located between the opposite sides of the two racks 9. The top of the screen plate 6 is concave, and a through opening 27 is provided on the inner bottom surface of the screen plate 6, and side openings 28 are provided on both sides of the screen plate 6, and the two side openings 28 penetrate into the interior of the screen plate 6, and the two side openings 28 are correspondingly connected to the through opening 27, and the two ends of the through opening 27 penetrate to the two sides of the screen plate 6 accordingly.

[0022] The effect achieved is that the reciprocating motion of one of the racks 9 can drive the transmission gear 10 to rotate reciprocatingly. Since the two racks 9 are meshed with the transmission gear 10, the two racks 9 can be reciprocated to slide the two sieve plates 6 back and forth, and the particles on the sieve plates 6 can be screened during the sliding process.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the transmission mechanism includes a motor 4, and a rotating shaft 16 is rotatably connected between the inner walls of the front and rear sides of the screening box 1 near the edges of both sides. The output end of the motor 4 is connected to one of the rotating shafts 16, and the two rotating shafts 16 are located between the opposite sides of the two sieve plates 6. The outer surfaces of the two rotating shafts 16 are located in the middle and are fixed with rollers 17. A conveyor belt 18 is arranged between the outer surfaces of the two rollers 17, and a cleaning component is arranged on the conveyor belt 18. One end of one of the rotating shafts 16 extends to the rear side of the screening box 1, and a turntable 20 is rotatably connected to the rear side of the screening box 1, and the turntable 20 and the rotating shaft 16 are mutually connected. Next, the rear side of the screening box 1 is located above the turntable 20 and is rotatably connected to a rocker arm 21. A shift opening 22 is provided on the front side of the rocker arm 21, and the bottom of the rocker arm 21 extends to the bottom of the turntable 20. A guide sleeve 25 is provided on the rear side of the screening box 1 on one side of the rack 9. A reciprocating rod 26 is slidably connected to the inside of the guide sleeve 25. One end of the reciprocating rod 26 is fixed to one end of one of the racks 9. A column 23 is provided on the reciprocating rod 26. The column 23 is slidably engaged in the inside of the shift opening 22. A shift rod 24 is fixed to the rear side of the turntable 20 near the edge of the outer surface, and the shift rod 24 is slidably engaged in the inside of the shift opening 22.

[0024] The effect achieved is that the motor 4 drives the rotating shaft 16 to rotate, thereby driving the roller 17 to rotate, and then driving the conveyor belt 18. During the transmission of the conveyor belt 18, the cleaning component is driven to push the larger particles that have not passed through the screen plate 6 into the discharge trough 12. At the same time, the rotation of the rotating shaft 16 will also drive the turntable 20 to rotate. When the turntable 20 rotates, the rocker arm 21 is driven to swing back and forth through the lever 24. When the rocker arm 21 swings back and forth, the lever 22 constrains the column 23, which can drive the column 23 to reciprocate, and then drive the reciprocating rod 26 to reciprocate and push one of the racks 9 to move, so that it drives the screening component to work.

[0025] like Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, the cleaning component includes a scraper 19, a connecting block 29 is fixed on the top of the conveyor belt 18, the connecting block 29 is slidably connected to the inside of the through-port 27, the scraper 19 is fixed on the top of the connecting block 29, the scraper 19 is located inside the screen plate 6, the bottom of the scraper 19 is in contact with the inner bottom surface of the screen plate 6, the top of the conveyor belt 18 extends to the inner bottom surface of the through-port 27, and a plurality of scraping cavities 30 are equidistantly provided at the bottom of the scraper 19 near one side edge.

[0026] The effect achieved is that when the conveyor belt 18 is driven, it will drive the connecting block 29 to slide inside the through-hole 27, and at the same time, the scraper 19 will push the larger particles on the bottom surface of the screen plate 6 to the side of the guide plate 15, so as to clean the screen plate 6. A scraping cavity 30 is provided at the bottom of the scraper 19, and the material that falls into the sieve hole on the upper half of the screen plate 6 can be pushed upward when the scraper 19 slides, so as to facilitate the removal of the material from the sieve hole.

[0027] like Figure 1 , Figure 3 Figure 4 As shown, the discharge assembly includes a spiral push rod 13, which is rotatably connected between the front and rear inner walls of the discharge trough 12, and a belt 14 is arranged between the outer surface of the spiral push rod 13 near the rear edge and one of the rotating shafts 16. One side of the discharge trough 12 near the top edge penetrates into the interior of the screening box 1, and a guide plate 15 is obliquely arranged between the front and rear interiors of the screening box 1 near one side edge, the top of the guide plate 15 extends to one side edge of the sieve plate 6, and the bottom of the guide plate 15 extends to the connection between the discharge trough 12 and the screening box 1, and two material guide plates 11 are arranged between the front and rear inner walls of the screening box 1, and the bottoms of the two material guide plates 11 are correspondingly obliquely extended to the two sides of the storage trough 2, and the tops of the two material guide plates 11 are correspondingly obliquely extended to the two sides of the sieve plate 6.

[0028] The effect achieved is that when the rotating shaft 16 rotates, the spiral push rod 13 is driven to rotate through the belt 14, and the rotation of the spiral push rod 13 can push the particles inside the discharge trough 12 to the rear side of the screening box 1, so that larger particles that do not meet the screening requirements are discharged. In the process of screening materials, the larger particles cleaned from the sieve plate 6 by the cleaning component can be guided by the guide plate 15 to flow into the interior of the discharge trough 12. Through the guidance of the two guide plates 11, the smaller particles screened by the sieve plate 6 can fall into the interior of the storage box 3.

[0029] The main problem solved by this embodiment is: the crushed particles are placed inside the screening box 1, and the motor 4 drives the rotating shaft 16 to rotate. The rotation of the rotating shaft 16 drives the rotating disk 20 to rotate. When the rotating disk 20 rotates, the lever 24 drives the swing rod 21 to swing back and forth. When the swing rod 21 swings back and forth, the lever 22 constrains the column 23, which can drive the column 23 to reciprocate, and then drive the reciprocating rod 26 to reciprocate and push one of the racks 9 to move, so that it drives the two sieve plates 6 to slide back and forth, so that the particles on the sieve plates 6 can be screened, and the rotation of the rotating shaft 16 will also drive the roller 17 to rotate, so as to The conveyor belt 18 is driven, and during the driving process of the conveyor belt 18, the connecting block 29 is driven to slide inside the through hole 27, and at the same time, the scraper 19 pushes the larger particles on the bottom surface of the inner part of the sieve plate 6 toward the side of the guide plate 15, so as to clean the sieve plate 6 and make it enter the discharge trough 12. The particles inside the discharge trough 12 can be pushed to the rear side of the screening box 1 by the rotation of the spiral push rod 13 inside the discharge trough 12, so that the larger particles that do not meet the screening requirements are discharged, and the discharged larger particles can be recycled and put into the external crushing equipment for further crushing and refinement, so as to achieve the purpose of recycling; For example, in one embodiment, the present invention further provides a method for treating sodium hydrosulfite residue, which is applied to the above sodium hydrosulfite residue treating device, and comprises the following steps: Step S1: placing the crushed particles inside the screening box 1, and screening particles of different sizes through the screening assembly inside the screening box 1. During the screening process, the screening assembly is driven by the transmission mechanism to work, and the cleaning assembly can also be driven to clean the screening assembly to prevent the larger particles from clogging the sieve holes on the sieve plate 6 during the screening process. At the same time, the cleaning assembly pushes the larger particles that have not passed through the sieve plate 6 to the inside of the discharge trough 12, and finally discharges them through the cleaning assembly; Step S2: When the screening assembly is working, the particles on the screen plates 6 can be screened by sliding the two screen plates 6 back and forth, wherein the reciprocating sliding of the two screen plates 6 is a synchronous alternating motion; Step S3: When the discharge assembly is working, the particles in the discharge trough 12 can be pushed to the rear side of the screening box 1 by the rotation of the spiral push rod 13, so that larger particles that do not meet the screening requirements are discharged; Step S4: When the transmission mechanism is working, the motor 4 drives the rotating shaft 16 to rotate, thereby driving the roller 17 to rotate, and then driving the conveyor belt 18. During the transmission of the conveyor belt 18, the cleaning component is driven to push the larger particles that have not passed through the screen plate 6 into the discharge trough 12. At the same time, the rotation of the rotating shaft 16 also drives the turntable 20 to rotate. When the turntable 20 rotates, the swing rod 21 is driven to swing back and forth through the lever 24. When the swing rod 21 swings back and forth, the lever 22 constrains the column 23, which can drive the column 23 to reciprocate, and then drive the reciprocating rod 26 to reciprocate and push one of the racks 9 to move, so that it drives the screening component to work; Step S5: When the cleaning assembly is working, when the conveyor belt 18 is driven, it will drive the connecting block 29 to slide inside the through hole 27, and at the same time, the scraper 19 will push the larger particles on the bottom surface of the sieve plate 6 to the side of the guide plate 15, thereby cleaning the sieve plate 6.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for treating hydrosulfite residue, characterized in that: The invention comprises a screening box (1), wherein a storage slot (2) is provided on the inner bottom surface of the screening box (1), the front side of the storage slot (2) penetrates to the front side of the screening box (1), a storage box (3) is slidably arranged inside the storage slot (2), a tail plate (7) is fixed to the top of the storage box (3) near the rear edge, the rear side of the tail plate (7) slides and penetrates to the rear side of the screening box (1), and the top of the tail plate (7) is flush with the top of the storage slot (2); A screening assembly is arranged inside the screening box (1), a transmission mechanism is arranged on the rear side of the screening box (1), side guard plates (5) are arranged on the top of the screening box (1) near the edges on both sides, a drainage groove (12) is opened on the inner wall of one side of the screening box (1), a drainage assembly is arranged inside the drainage groove (12), and the front side of the drainage groove (12) near the bottom edge penetrates to the front side of the screening box (1).

2. The device for treating hydrosulfite residue according to claim 1, characterized in that: The screening assembly comprises two screening plates (6), the rear side of the screening box (1) is provided with two sliding openings (8) penetrating into the interior of the screening box (1), racks (9) are slidably arranged inside the two sliding openings (8), the rear sides of the two racks (9) extend to the rear side of the screening box (1), and the front sides of the two racks (9) are fixed to the screening plates (6) accordingly.

3. The device for treating hydrosulfite residue according to claim 2, characterized in that: The rear side of the screening box (1) is rotatably connected to a transmission gear (10), the two racks (9) are respectively meshed with the transmission gear (10), the transmission gear (10) is located between the opposite sides of the two racks (9), the top of the sieve plate (6) is concave, the inner bottom surface of the sieve plate (6) is provided with a through opening (27), the two sides of the sieve plate (6) are provided with side openings (28), the two side openings (28) are respectively extended to the inside of the sieve plate (6), the two side openings (28) are respectively communicated with the through opening (27), and the two ends of the through opening (27) are respectively extended to the two sides of the sieve plate (6).

4. The device for treating hydrosulfite residue according to claim 3, characterized in that: The transmission mechanism comprises a motor (4), and a rotating shaft (16) is rotatably connected between the inner walls of the front and rear sides of the screening box (1) near the edges of both sides. The output end of the motor (4) is connected to one of the rotating shafts (16), and the two rotating shafts (16) are located between the opposite sides of the two sieve plates (6). Rollers (17) are fixed to the outer surfaces of the two rotating shafts (16) at the middle part, and a conveyor belt (18) is arranged between the outer surfaces of the two rollers (17), and a cleaning component is arranged on the conveyor belt (18).

5. The device for treating hydrosulfite residue according to claim 4, characterized in that: One end of one of the rotating shafts (16) extends to the rear side of the screening box (1), the rear side of the screening box (1) is rotatably connected to a rotating disk (20), the rotating disk (20) and the rotating shaft (16) are connected to each other, the rear side of the screening box (1) is located above the rotating disk (20) and is rotatably connected to a swing rod (21), the front side of the swing rod (21) is provided with a shifting opening (22), and the bottom of the swing rod (21) extends below the rotating disk (20).

6. The device for treating hydrosulfite residue according to claim 5, characterized in that: A guide sleeve (25) is provided on the rear side of the screening box (1) at one side of the rack (9), a reciprocating rod (26) is slidably connected inside the guide sleeve (25), one end of the reciprocating rod (26) is fixed to one end of one of the racks (9), a column (23) is provided on the reciprocating rod (26), the column (23) is slidably engaged inside the dial opening (22), and a lever (24) is fixed on the rear side of the turntable (20) near the outer surface edge, the lever (24) is slidably engaged inside the dial opening (22).

7. The device for treating hydrosulfite residue according to claim 6, characterized in that: The cleaning component comprises a scraper (19), a connecting block (29) is fixed on the top of the conveyor belt (18), the connecting block (29) is slidably connected to the inside of the through-hole (27), the scraper (19) is fixed on the top of the connecting block (29), the scraper (19) is located inside the sieve plate (6), the bottom of the scraper (19) is in contact with the inner bottom surface of the sieve plate (6), the top of the conveyor belt (18) extends to the inner bottom surface of the through-hole (27), and a plurality of scraping cavities (30) are equidistantly provided at the bottom of the scraper (19) near one side edge.

8. The device for treating hydrosulfite residue according to claim 7, characterized in that: The discharge assembly comprises a spiral push rod (13), the spiral push rod (13) being rotatably connected between the front and rear inner walls of the discharge trough (12), a belt (14) being arranged between the outer surface of the spiral push rod (13) near the rear edge and one of the rotating shafts (16), and one side of the discharge trough (12) near the top edge penetrates into the interior of the screening box (1).

9. The device for treating hydrosulfite residue according to claim 8, characterized in that: A guide plate (15) is obliquely arranged between the front and rear inner sides of the screening box (1) near one side edge, the top of the guide plate (15) extends to one side edge of the screening plate (6), and the bottom of the guide plate (15) extends to the connection between the discharge trough (12) and the screening box (1). Two material guide plates (11) are arranged between the front and rear inner walls of the screening box (1), the bottoms of the two material guide plates (11) are obliquely extended to the two sides of the storage trough (2), and the tops of the two material guide plates (11) are obliquely extended to the two sides of the screening plate (6).

10. A method for treating hydrosulfite residue, applied to a device for treating hydrosulfite residue as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1: placing the crushed particles inside a screening box (1), and screening particles of different sizes by means of a screening assembly inside the screening box (1). During the screening process, the screening assembly is driven by a transmission mechanism to work, and a cleaning assembly can also be driven to clean the screening assembly to prevent larger particles from clogging the sieve holes on the sieve plate (6) during the screening process. At the same time, the cleaning assembly pushes larger particles that have not passed through the sieve plate (6) into the interior of a discharge trough (12), and the particles are finally discharged by the cleaning assembly. Step S2: when the screening component is working, the two screening plates (6) are slid back and forth to screen the particles on the screening plates (6), wherein the reciprocating sliding of the two screening plates (6) is a synchronous alternating motion; Step S3: When the discharge assembly is in operation, the particles in the discharge trough (12) can be pushed toward the rear side of the screening box (1) by the rotation of the spiral push rod (13), so that larger particles that do not meet the screening requirements are discharged; Step S4: When the transmission mechanism is working, the motor (4) drives the rotating shaft (16) to rotate, thereby driving the roller (17) to rotate, and then driving the conveyor belt (18). During the transmission of the conveyor belt (18), the cleaning component is driven to push the larger particles that have not passed through the screen plate (6) into the discharge trough (12). At the same time, the rotation of the rotating shaft (16) also drives the rotating disk (20) to rotate. When the rotating disk (20) rotates, the swing rod (21) is driven to swing back and forth through the lever (24). When the swing rod (21) swings back and forth, the lever (22) constrains the column (23), which can drive the column (23) to reciprocate, thereby driving the reciprocating rod (26) to reciprocate and push one of the racks (9) to move, so that it drives the screening component to work; Step S5: When the cleaning component is working, when the conveyor belt (18) is driven, it will drive the connecting block (29) to slide inside the through-hole (27), and at the same time, the scraper (19) will push the larger particles on the bottom surface of the screen plate (6) toward the side of the guide plate (15), thereby cleaning the screen plate (6).

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